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<!--Created on: 7/27/2011 6:54:01 PM-->
<!--Modified on: 7/27/2011 6:54:02 PM-->
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecurities_lbl" xml:lang="en-US">Fixed maturity securities, available-for-sale - at fair value (amortized cost: $2,285,988 - 2010; $1,616,456 - 2009)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtSecurities_lbl" xml:lang="en-US">Fixed maturity securities, available-for-sale - at fair value (amortized cost: $2,442,579 - 2011; $2,285,988 - 2010)</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AvailableForSaleSecuritiesEquitySecurities_lbl" xml:lang="en-US">Equity securities, available-for-sale - at fair value (cost of: $58,039 - 2010; $64,390 - 2009)</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherShortTermInvestments_lbl" xml:lang="en-US">Short-term investments - at cost which approximates fair value</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_PremiumsReceivableAtCarryingValue_lbl" xml:lang="en-US">Premiums Receivable, at Carrying Value, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_PremiumsReceivableAtCarryingValue_lbl" xml:lang="en-US">Premiums receivable, net of allowance for uncollectible accounts of: $ 4,608 - 2011; $4,691 - 2010</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ReinsuranceRecoverables" xlink:label="us-gaap_ReinsuranceRecoverables" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ReinsuranceRecoverables" xlink:to="us-gaap_ReinsuranceRecoverables_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ReinsuranceRecoverables_lbl" xml:lang="en-US">Reinsurance recoverable of losses and loss expenses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ReinsuranceRecoverables_lbl" xml:lang="en-US">Reinsurance Recoverables, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_ReinsuranceRecoverables_lbl" xml:lang="en-US">Reinsurance Recoverables, Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ReinsuranceRecoverables_lbl" xml:lang="en-US">Reinsurance recoverables, net</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PrepaidReinsurancePremiums" xlink:label="us-gaap_PrepaidReinsurancePremiums" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PrepaidReinsurancePremiums" xlink:to="us-gaap_PrepaidReinsurancePremiums_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PrepaidReinsurancePremiums_lbl" xml:lang="en-US">Prepaid reinsurance premiums</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_CurrentFederalIncomeTax" xlink:label="sigi_CurrentFederalIncomeTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_CurrentFederalIncomeTax" xlink:to="sigi_CurrentFederalIncomeTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_CurrentFederalIncomeTax_lbl" xml:lang="en-US">Carrying amount as of the balance sheet date of income taxes previously overpaid to U.S. federal tax authorities representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_CurrentFederalIncomeTax_lbl" xml:lang="en-US">Current federal income tax</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DeferredTaxAssetsNet" xlink:label="us-gaap_DeferredTaxAssetsNet" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsNet" xlink:to="us-gaap_DeferredTaxAssetsNet_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxAssetsNet_lbl" xml:lang="en-US">Deferred federal income tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_DeferredTaxAssetsNet_lbl" xml:lang="en-US">Deferred Tax Assets, Net, Total</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="us-gaap_PropertyPlantAndEquipmentNet" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentNet" xlink:to="us-gaap_PropertyPlantAndEquipmentNet_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xml:lang="en-US">Property and equipment - at cost, net of accumulated depreciation and amortization of: $ - 2011; $151,704 - 2009</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xml:lang="en-US">Property, Plant and Equipment, Net, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xml:lang="en-US">Property, Plant and Equipment, Net, Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xml:lang="en-US">Property and equipment - at cost, net of accumulated depreciation and amortization of: $156,209 - 2011; $151,704 - 2010</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xml:lang="en-US">Property and equipment - at cost, net of accumulated depreciation and amortization of: $ - 2011; $151,704 - 2010</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xml:lang="en-US">Property and equipment - at cost, net of accumulated depreciation and amortization of: $149,255 - 2010; $141,251 - 2009</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DeferredPolicyAcquisitionCosts" xlink:label="us-gaap_DeferredPolicyAcquisitionCosts" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredPolicyAcquisitionCosts" xlink:to="us-gaap_DeferredPolicyAcquisitionCosts_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredPolicyAcquisitionCosts_lbl" xml:lang="en-US">Deferred policy acquisition costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_DeferredPolicyAcquisitionCosts_lbl" xml:lang="en-US">Deferred Policy Acquisition Costs, Total</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_Goodwill" xlink:label="us-gaap_Goodwill" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Goodwill" xlink:to="us-gaap_Goodwill_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Goodwill_lbl" xml:lang="en-US">Goodwill</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_Goodwill_lbl" xml:lang="en-US">Goodwill, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_Goodwill_lbl" xml:lang="en-US">Goodwill, Beginning Balance</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherAssets" xlink:label="us-gaap_OtherAssets" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssets" xlink:to="us-gaap_OtherAssets_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherAssets_lbl" xml:lang="en-US">Other assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OtherAssets_lbl" xml:lang="en-US">Other assets</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_Assets" xlink:label="us-gaap_Assets" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Assets" xlink:to="us-gaap_Assets_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Assets_lbl" xml:lang="en-US">Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Assets_lbl" xml:lang="en-US">Total assets</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:to="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xml:lang="en-US">Liabilities And Stockholders Equity</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negatedPeriodEnd" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xml:lang="en-US">LiabilitiesAndStockholdersEquity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xml:lang="en-US">LIABILITIES AND STOCKHOLDERS' EQUITY</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpensePropertyCasualtyLiability" xlink:label="us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpensePropertyCasualtyLiability" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpensePropertyCasualtyLiability" xlink:to="us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpensePropertyCasualtyLiability_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpensePropertyCasualtyLiability_lbl" xml:lang="en-US">Liability For Claims And Claims Adjustment Expense Property Casualty Liability</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpensePropertyCasualtyLiability_lbl" xml:lang="en-US">Reserve for losses and loss expenses</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_UnearnedPremiums" xlink:label="us-gaap_UnearnedPremiums" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnearnedPremiums" xlink:to="us-gaap_UnearnedPremiums_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UnearnedPremiums_lbl" xml:lang="en-US">Unearned premiums</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_UnearnedPremiums_lbl" xml:lang="en-US">Unearned Premiums, Total</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LongTermDebt" xlink:label="us-gaap_LongTermDebt" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebt" xlink:to="us-gaap_LongTermDebt_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebt_lbl" xml:lang="en-US">Long Term Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LongTermDebt_lbl" xml:lang="en-US">Notes payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LongTermDebt_lbl" xml:lang="en-US">Notes payable</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AccruedSalariesAndBenefits" xlink:label="sigi_AccruedSalariesAndBenefits" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AccruedSalariesAndBenefits" xlink:to="sigi_AccruedSalariesAndBenefits_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AccruedSalariesAndBenefits_lbl" xml:lang="en-US">The carrying values of obligations as of the balance sheet date that are not allocated to loss adjustment expenses related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AccruedSalariesAndBenefits_lbl" xml:lang="en-US">Accrued salaries and benefits</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherLiabilities" xlink:label="us-gaap_OtherLiabilities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherLiabilities" xlink:to="us-gaap_OtherLiabilities_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherLiabilities_lbl" xml:lang="en-US">Other liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OtherLiabilities_lbl" xml:lang="en-US">Other liabilities</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_Liabilities" xlink:label="us-gaap_Liabilities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Liabilities_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Liabilities_lbl" xml:lang="en-US">Liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Liabilities_lbl" xml:lang="en-US">Total liabilities</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="us-gaap_StockholdersEquityAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityAbstract" xlink:to="us-gaap_StockholdersEquityAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xml:lang="en-US">Stockholders' Equity:</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="us-gaap_PreferredStockValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockValue" xlink:to="us-gaap_PreferredStockValue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockValue_lbl" xml:lang="en-US">Preferred stock of $0 par value per share: Authorized shares: 5,000,000; no shares issued or outstanding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_PreferredStockValue_lbl" xml:lang="en-US">Preferred Stock, Value, Issued, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_PreferredStockValue_lbl" xml:lang="en-US">Preferred Stock, Value, Issued, Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockValue_lbl" xml:lang="en-US">Preferred stock of $0 par value per share: Authorized shares: 5,000,000; no shares issued or outstanding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_PreferredStockValue_lbl" xml:lang="en-US">Preferred Stock, Value, Issued, Total</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CommonStockValue" xlink:label="us-gaap_CommonStockValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockValue" xlink:to="us-gaap_CommonStockValue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockValue_lbl" xml:lang="en-US">Common stock of $2 par value per share Authorized shares: 360,000,000 Issued: - 2011; 96,362,667 - 2010</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_CommonStockValue_lbl" xml:lang="en-US">Common Stock, Value, Issued, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_CommonStockValue_lbl" xml:lang="en-US">Common Stock, Value, Issued, Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommonStockValue_lbl" xml:lang="en-US">Common stock of $2 par value per share Authorized shares: 360,000,000 Issued: 96,987,900 - 2011; 96,362,667 - 2010</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_CommonStockValue_lbl" xml:lang="en-US">Common Stock, Value, Issued, Total</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdditionalPaidInCapitalCommonStock" xlink:to="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xml:lang="en-US">Additional paid-in capital common stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xml:lang="en-US">Additional Paid in Capital, Common Stock, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xml:lang="en-US">Additional Paid in Capital, Common Stock, Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xml:lang="en-US">Additional paid-in capital</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:to="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xml:lang="en-US">Retained Earnings (Accumulated Deficit)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xml:lang="en-US">Retained Earnings (Accumulated Deficit), Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xml:lang="en-US">Retained Earnings (Accumulated Deficit), Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xml:lang="en-US">Retained earnings</label>
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    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negatedTotal" xlink:label="us-gaap_TreasuryStockValue_lbl" xml:lang="en-US">Treasury stock - at cost (shares: - 2011; 42,686,204 - 2010)</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_TreasuryStockValue_lbl" xml:lang="en-US">Treasury stock - at cost (shares: 42,821,299 - 2011; 42,686,204 - 2010)</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xml:lang="en-US">Liabilities and Stockholders' Equity</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_HeldToMaturitySecuritiesFairValue_lbl" xml:lang="en-US">Fixed maturity securities, held-to-maturity, fair value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_HeldToMaturitySecuritiesFairValue_lbl" xml:lang="en-US">Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_HeldToMaturitySecuritiesFairValue_lbl" xml:lang="en-US">CMBS, HTM</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost_lbl" xml:lang="en-US">Available-for-sale securities, debt maturities, amortized cost</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost_lbl" xml:lang="en-US">Fixed maturity securities, available-for-sale, amortized cost</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost_lbl" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, Amortized Cost, Total</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_EquitySecuritiesAvailableForSaleCost_lbl" xml:lang="en-US">This item represents the aggregate cost of investments in equity securities as of the balance sheet date and which are not categorized as trading, net of adjustments for other-than-temporary impairments.</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PremiumsReceivableAllowanceForDoubtfulAccounts" xlink:to="us-gaap_PremiumsReceivableAllowanceForDoubtfulAccounts_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PremiumsReceivableAllowanceForDoubtfulAccounts_lbl" xml:lang="en-US">Premiums Receivable, Allowance for Doubtful Accounts ending</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_PremiumsReceivableAllowanceForDoubtfulAccounts_lbl" xml:lang="en-US">Premiums receivable, allowance for doubtful accounts, ending balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_PremiumsReceivableAllowanceForDoubtfulAccounts_lbl" xml:lang="en-US">Premiums Receivable, Allowance for Doubtful Accounts, Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PremiumsReceivableAllowanceForDoubtfulAccounts_lbl" xml:lang="en-US">Premiums receivable, allowance for uncollectible accounts</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xml:lang="en-US">Accumulated depreciation and amortization, property and equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xml:lang="en-US">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xml:lang="en-US">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xml:lang="en-US">Property and equipment, accumulated depreciation and amortization</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xml:lang="en-US">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xml:lang="en-US">Preferred stock, par or stated value per share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xml:lang="en-US">Preferred stock, par value per share</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="us-gaap_PreferredStockSharesAuthorized" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xml:lang="en-US">Preferred stock, shares authorized</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xml:lang="en-US">Preferred stock, shares authorized</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xml:lang="en-US">Preferred stock designated as series A junior preferred stock</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockSharesIssued_lbl" xml:lang="en-US">Preferred stock, shares issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_PreferredStockSharesIssued_lbl" xml:lang="en-US">Preferred Stock, Shares Issued, Total</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="us-gaap_PreferredStockSharesOutstanding" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xml:lang="en-US">Preferred stock, shares outstanding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xml:lang="en-US">Preferred Stock, Shares Outstanding, Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xml:lang="en-US">Preferred Stock, Shares Outstanding, Beginning Balance</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xml:lang="en-US">Common stock, par or stated value per share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xml:lang="en-US">Common stock, par value per share</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="us-gaap_CommonStockSharesAuthorized" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xml:lang="en-US">Common stock, shares authorized</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xml:lang="en-US">Common stock, shares issued</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TreasuryStockShares_lbl" xml:lang="en-US">Treasury stock, shares</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_TreasuryStockShares_lbl" xml:lang="en-US">Treasury Stock, Shares, Beginning Balance</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PremiumsEarnedNetPropertyAndCasualty_lbl" xml:lang="en-US">Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_PremiumsEarnedNetPropertyAndCasualty_lbl" xml:lang="en-US">Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_PremiumsEarnedNetPropertyAndCasualty_lbl" xml:lang="en-US">Total net premiums earned</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_NetInvestmentIncomeEarned" xlink:label="sigi_NetInvestmentIncomeEarned" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_NetInvestmentIncomeEarned" xlink:to="sigi_NetInvestmentIncomeEarned_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_NetInvestmentIncomeEarned_lbl" xml:lang="en-US">The income earned from investments in securities and other investments including dividends, interest, and returns on other investments. This item does not include realized gains (losses).</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_NetInvestmentIncomeEarned_lbl" xml:lang="en-US">Net investment income earned</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_NetInvestmentIncomeEarned_lbl" xml:lang="en-US">Net investment income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="sigi_NetInvestmentIncomeEarned_lbl" xml:lang="en-US">Net investment income earned</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RealizedInvestmentGainsLossesAbstract" xlink:label="us-gaap_RealizedInvestmentGainsLossesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RealizedInvestmentGainsLossesAbstract" xlink:to="us-gaap_RealizedInvestmentGainsLossesAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RealizedInvestmentGainsLossesAbstract_lbl" xml:lang="en-US">Net realized (losses):</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_RealizedInvestmentGainsLossesAbstract_lbl" xml:lang="en-US">Net realized gains (losses):</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_GainLossOnSaleOfSecuritiesNet" xlink:label="us-gaap_GainLossOnSaleOfSecuritiesNet" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainLossOnSaleOfSecuritiesNet" xlink:to="us-gaap_GainLossOnSaleOfSecuritiesNet_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GainLossOnSaleOfSecuritiesNet_lbl" xml:lang="en-US">Net realized investment (losses) gains</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_GainLossOnSaleOfSecuritiesNet_lbl" xml:lang="en-US">Net realized investment gains</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_GainLossOnSaleOfSecuritiesNet_lbl" xml:lang="en-US">Total other net realized investment gains</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_GainLossOnSaleOfSecuritiesNet_lbl" xml:lang="en-US">Total other net realized investment gains (losses)</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_OtherThanTemporaryImpairments" xlink:label="sigi_OtherThanTemporaryImpairments" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_OtherThanTemporaryImpairments" xlink:to="sigi_OtherThanTemporaryImpairments_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_OtherThanTemporaryImpairments_lbl" xml:lang="en-US">Total other than temporary impairment losses on investments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_OtherThanTemporaryImpairments_lbl" xml:lang="en-US">Other-than-temporary impairments</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_OtherThanTemporaryImpairments_lbl" xml:lang="en-US">Other-than-temporary impairments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_OtherThanTemporaryImpairments_lbl" xml:lang="en-US">OTTI Losses Gross</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_OtherThanTemporaryImpairmentsOnFixedMaturitySecuritiesRecognizedInOtherComprehensiveIncome" xlink:label="sigi_OtherThanTemporaryImpairmentsOnFixedMaturitySecuritiesRecognizedInOtherComprehensiveIncome" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_OtherThanTemporaryImpairmentsOnFixedMaturitySecuritiesRecognizedInOtherComprehensiveIncome" xlink:to="sigi_OtherThanTemporaryImpairmentsOnFixedMaturitySecuritiesRecognizedInOtherComprehensiveIncome_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_OtherThanTemporaryImpairmentsOnFixedMaturitySecuritiesRecognizedInOtherComprehensiveIncome_lbl" xml:lang="en-US">Non-credit portion of other-than-temporary impairment losses on investments recognized in other comprehensive income.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_OtherThanTemporaryImpairmentsOnFixedMaturitySecuritiesRecognizedInOtherComprehensiveIncome_lbl" xml:lang="en-US">Other-than-temporary impairments on fixed maturity securities recognized in other comprehensive income</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_OtherThanTemporaryImpairmentsOnFixedMaturitySecuritiesRecognizedInOtherComprehensiveIncome_lbl" xml:lang="en-US">Other-than-temporary impairments on fixed maturity securities recognized in other comprehensive income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_OtherThanTemporaryImpairmentsOnFixedMaturitySecuritiesRecognizedInOtherComprehensiveIncome_lbl" xml:lang="en-US">OTTI Losses Included in Other Comprehensive Income ("OCI")</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="sigi_OtherThanTemporaryImpairmentsOnFixedMaturitySecuritiesRecognizedInOtherComprehensiveIncome_lbl" xml:lang="en-US">Other-than-temporary impairments on fixed maturity securities recognized in other comprehensive income</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RealizedInvestmentGainsLosses" xlink:label="us-gaap_RealizedInvestmentGainsLosses" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RealizedInvestmentGainsLosses" xlink:to="us-gaap_RealizedInvestmentGainsLosses_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RealizedInvestmentGainsLosses_lbl" xml:lang="en-US">Total net realized investment losses</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_RealizedInvestmentGainsLosses_lbl" xml:lang="en-US">Net realized (gains) losses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_RealizedInvestmentGainsLosses_lbl" xml:lang="en-US">Net realized gain (loss) on investments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_RealizedInvestmentGainsLosses_lbl" xml:lang="en-US">Total net realized gains (losses)</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherIncome" xlink:label="us-gaap_OtherIncome" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherIncome" xlink:to="us-gaap_OtherIncome_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherIncome_lbl" xml:lang="en-US">Other income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OtherIncome_lbl" xml:lang="en-US">Other income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_OtherIncome_lbl" xml:lang="en-US">Miscellaneous income</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_Revenues" xlink:label="us-gaap_Revenues" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Revenues" xlink:to="us-gaap_Revenues_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Revenues_lbl" xml:lang="en-US">Total revenues</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_Revenues_lbl" xml:lang="en-US">Total revenues from continuing operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Revenues_lbl" xml:lang="en-US">Total revenues</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BenefitsLossesAndExpensesAbstract" xlink:label="us-gaap_BenefitsLossesAndExpensesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BenefitsLossesAndExpensesAbstract" xlink:to="us-gaap_BenefitsLossesAndExpensesAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_BenefitsLossesAndExpensesAbstract_lbl" xml:lang="en-US">Expenses:</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncurredClaimsPropertyCasualtyAndLiability" xlink:label="us-gaap_IncurredClaimsPropertyCasualtyAndLiability" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncurredClaimsPropertyCasualtyAndLiability" xlink:to="us-gaap_IncurredClaimsPropertyCasualtyAndLiability_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncurredClaimsPropertyCasualtyAndLiability_lbl" xml:lang="en-US">Incurred Claims Property Casualty And Liability</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_IncurredClaimsPropertyCasualtyAndLiability_lbl" xml:lang="en-US">IncurredClaimsPropertyCasualtyAndLiability</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncurredClaimsPropertyCasualtyAndLiability_lbl" xml:lang="en-US">Losses and loss expenses incurred</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_IncurredClaimsPropertyCasualtyAndLiability_lbl" xml:lang="en-US">Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_IncurredClaimsPropertyCasualtyAndLiability_lbl" xml:lang="en-US">Net</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_PolicyAcquisitionCosts" xlink:label="sigi_PolicyAcquisitionCosts" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_PolicyAcquisitionCosts" xlink:to="sigi_PolicyAcquisitionCosts_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_PolicyAcquisitionCosts_lbl" xml:lang="en-US">Amount of deferred and other policy acquisition costs charged to expense in the period, generally in proportion to related revenue earned, estimated gross profits, or over the customer relationship or some other period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_PolicyAcquisitionCosts_lbl" xml:lang="en-US">Policy acquisition costs</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InterestExpenseDebt" xlink:label="us-gaap_InterestExpenseDebt" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestExpenseDebt" xlink:to="us-gaap_InterestExpenseDebt_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestExpenseDebt_lbl" xml:lang="en-US">Interest Expense Debt</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_InterestExpenseDebt_lbl" xml:lang="en-US">Interest expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InterestExpenseDebt_lbl" xml:lang="en-US">Interest expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_InterestExpenseDebt_lbl" xml:lang="en-US">Interest Expense, Debt, Total</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherCostAndExpenseOperating" xlink:label="us-gaap_OtherCostAndExpenseOperating" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherCostAndExpenseOperating" xlink:to="us-gaap_OtherCostAndExpenseOperating_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherCostAndExpenseOperating_lbl" xml:lang="en-US">Other expenses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OtherCostAndExpenseOperating_lbl" xml:lang="en-US">Other expenses</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BenefitsLossesAndExpenses" xlink:label="us-gaap_BenefitsLossesAndExpenses" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BenefitsLossesAndExpenses" xlink:to="us-gaap_BenefitsLossesAndExpenses_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_BenefitsLossesAndExpenses_lbl" xml:lang="en-US">Total expenses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_BenefitsLossesAndExpenses_lbl" xml:lang="en-US">Total expenses</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_IncomeLossFromContinuingOperationsBeforeFederalIncomeTax" xlink:label="sigi_IncomeLossFromContinuingOperationsBeforeFederalIncomeTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_IncomeLossFromContinuingOperationsBeforeFederalIncomeTax" xlink:to="sigi_IncomeLossFromContinuingOperationsBeforeFederalIncomeTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_IncomeLossFromContinuingOperationsBeforeFederalIncomeTax_lbl" xml:lang="en-US">Income or loss from continuing operations before income taxes, but includes income (loss) from equity method investments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_IncomeLossFromContinuingOperationsBeforeFederalIncomeTax_lbl" xml:lang="en-US">Income (loss) from continuing operations before federal income tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_IncomeLossFromContinuingOperationsBeforeFederalIncomeTax_lbl" xml:lang="en-US">Total all segments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="sigi_IncomeLossFromContinuingOperationsBeforeFederalIncomeTax_lbl" xml:lang="en-US">Income from continuing operations, before federal income tax</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncomeTaxExpenseBenefitAbstract" xlink:label="us-gaap_IncomeTaxExpenseBenefitAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxExpenseBenefitAbstract" xlink:to="us-gaap_IncomeTaxExpenseBenefitAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxExpenseBenefitAbstract_lbl" xml:lang="en-US">Federal income tax expense (benefit):</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeTaxExpenseBenefitAbstract_lbl" xml:lang="en-US">Federal income tax (benefit) expense:</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CurrentFederalTaxExpenseBenefit" xlink:label="us-gaap_CurrentFederalTaxExpenseBenefit" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CurrentFederalTaxExpenseBenefit" xlink:to="us-gaap_CurrentFederalTaxExpenseBenefit_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CurrentFederalTaxExpenseBenefit_lbl" xml:lang="en-US">Current</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:label="us-gaap_DeferredFederalIncomeTaxExpenseBenefit" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:to="us-gaap_DeferredFederalIncomeTaxExpenseBenefit_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredFederalIncomeTaxExpenseBenefit_lbl" xml:lang="en-US">Deferred Federal Income Tax Expense Benefit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DeferredFederalIncomeTaxExpenseBenefit_lbl" xml:lang="en-US">Deferred income tax expense (benefit)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_DeferredFederalIncomeTaxExpenseBenefit_lbl" xml:lang="en-US">Deferred</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DeferredFederalIncomeTaxExpenseBenefit_lbl" xml:lang="en-US">Deferred</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="us-gaap_IncomeTaxExpenseBenefit" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxExpenseBenefit_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xml:lang="en-US">Total federal income tax (benefit) expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xml:lang="en-US">Total federal income tax (benefit) expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xml:lang="en-US">Federal income tax expense (benefit) from continuing operations</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncomeLossFromContinuingOperations" xlink:label="us-gaap_IncomeLossFromContinuingOperations" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromContinuingOperations_lbl" xml:lang="en-US">Net income (loss) from continuing operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_IncomeLossFromContinuingOperations_lbl" xml:lang="en-US">Net income from continuing operations</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax_lbl" xml:lang="en-US">Loss on disposal of discontinued operations, net of tax</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax_lbl" xml:lang="en-US">Loss on disposal of discontinued operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax_lbl" xml:lang="en-US">Loss on disposal of discontinued operations, net of tax of $(713) for Second Quarter 2010 and $(1,139) for Six Months 2010</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax_lbl" xml:lang="en-US">Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax_lbl" xml:lang="en-US">After-tax charge</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetIncomeLoss_lbl" xml:lang="en-US">Net income</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_NetIncomeLoss_lbl" xml:lang="en-US">Net Income, Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetIncomeLoss_lbl" xml:lang="en-US">Net income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetIncomeLoss_lbl" xml:lang="en-US">Net income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_NetIncomeLoss_lbl" xml:lang="en-US">Net Income, Net</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="us-gaap_EarningsPerShareAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareAbstract" xlink:to="us-gaap_EarningsPerShareAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EarningsPerShareAbstract_lbl" xml:lang="en-US">Earnings Per Share [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EarningsPerShareAbstract_lbl" xml:lang="en-US">Earnings per share:</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsPerBasicShare" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerBasicShare" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_lbl" xml:lang="en-US">Basic net income (loss) from continuing operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_lbl" xml:lang="en-US">Basic net income from continuing operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_lbl" xml:lang="en-US">Income (Loss) from Continuing Operations, Per Outstanding Share, Total</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_IncomeLossFromDiscontinuedOperationsPerBasicShare" xlink:label="sigi_IncomeLossFromDiscontinuedOperationsPerBasicShare" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_IncomeLossFromDiscontinuedOperationsPerBasicShare_lbl" xml:lang="en-US">The amount of income (loss) from discontinued operations, net of related tax effect, per each share of common stock outstanding during the reporting period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_IncomeLossFromDiscontinuedOperationsPerBasicShare_lbl" xml:lang="en-US">Income Loss from discontinued operations per basic share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_IncomeLossFromDiscontinuedOperationsPerBasicShare_lbl" xml:lang="en-US">Basic net loss from disposal of discontinued operations</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="us-gaap_EarningsPerShareBasic" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareBasic" xlink:to="us-gaap_EarningsPerShareBasic_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xml:lang="en-US">Basic net income (loss)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xml:lang="en-US">Basic net income</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare" xlink:to="us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_lbl" xml:lang="en-US">Diluted net income (loss) from continuing operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_lbl" xml:lang="en-US">Diluted net income from continuing operations</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare" xlink:to="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_lbl" xml:lang="en-US">Diluted net loss from disposal of discontinued operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_lbl" xml:lang="en-US">Diluted net loss from disposal of discontinued operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_lbl" xml:lang="en-US">Diluted net income from discontinued operations</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="us-gaap_EarningsPerShareDiluted" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareDiluted" xlink:to="us-gaap_EarningsPerShareDiluted_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xml:lang="en-US">Diluted net income (loss)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xml:lang="en-US">Diluted net income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xml:lang="en-US">Diluted net income</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CommonStockDividendsPerShareDeclared" xlink:label="us-gaap_CommonStockDividendsPerShareDeclared" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockDividendsPerShareDeclared" xlink:to="us-gaap_CommonStockDividendsPerShareDeclared_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockDividendsPerShareDeclared_lbl" xml:lang="en-US">Common Stock Dividends Per Share Declared</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommonStockDividendsPerShareDeclared_lbl" xml:lang="en-US">Dividends to stockholders, per share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_CommonStockDividendsPerShareDeclared_lbl" xml:lang="en-US">Dividends to stockholders</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation" xlink:label="us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation" xlink:to="us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation_lbl" xml:lang="en-US">Discontinued Operation Tax Effect of Income (Loss) from Disposal of Discontinued Operation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation_lbl" xml:lang="en-US">Loss on disposal of discontinued operations, tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation_lbl" xml:lang="en-US">Discontinued Operation, Tax Effect of Income (Loss) from Disposal of Discontinued Operation, Total</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfStockholdersEquityAbstract" xlink:to="us-gaap_StatementOfStockholdersEquityAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract_lbl" xml:lang="en-US">Statement of Stockholders' Equity [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract_lbl" xml:lang="en-US">CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan" xlink:label="us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan" xlink:to="us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan_lbl" xml:lang="en-US">Dividend reinvestment plan (shares: - 2011; 25,759 - 2010</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan_lbl" xml:lang="en-US">Dividend reinvestment plan (shares: 47,488 - 2011; 53,272 - 2010)</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:label="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:to="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_lbl" xml:lang="en-US">Stock purchase and compensation plans (shares: 0 - 2010; 435,571 - 2009; 483,619 - 2008)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_lbl" xml:lang="en-US">Stock purchase and compensation plans (shares: 577,745 - 2011; 218,525 - 2010)</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DividendsCommonStock" xlink:label="us-gaap_DividendsCommonStock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DividendsCommonStock" xlink:to="us-gaap_DividendsCommonStock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DividendsCommonStock_lbl" xml:lang="en-US">Cash dividends to stockholders ($0.13 per share - 2011; $0.13 per share - 2010)</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_DividendsCommonStock_lbl" xml:lang="en-US">Dividends to stockholders ($0.26 per share - 2011 and 2010)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DividendsCommonStock_lbl" xml:lang="en-US">Dividends to stockholders ($0.13 per share - 2011 and 2010)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_DividendsCommonStock_lbl" xml:lang="en-US">Cash dividends to stockholders ($0.13 per share - 2011; $0.13 per share - 2010)</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeNetOfDeferredIncomeTax" xlink:label="sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeNetOfDeferredIncomeTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeNetOfDeferredIncomeTax" xlink:to="sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeNetOfDeferredIncomeTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeNetOfDeferredIncomeTax_lbl" xml:lang="en-US">Non-credit portion of other-than-temporary impairment losses on fixed maturity securities recognized in other comprehensive income, net of deferred income tax. This item includes subsequent changes to these securities such as amortization on HTM securities or subsequent sales. This item does not include subsequent changes in appreciation or loss in value.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeNetOfDeferredIncomeTax_lbl" xml:lang="en-US">Non-credit portion of other-than-temporary impairment losses recognized in other comprehensive income, net of deferred income tax</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeNetOfDeferredIncomeTax_lbl" xml:lang="en-US">Non-credit portion of other-than-temporary impairment losses recognized in other comprehensive income, net of deferred income tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeNetOfDeferredIncomeTax_lbl" xml:lang="en-US">Changes in OTTI Related Net Unrealized Gain (Loss)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeNetOfDeferredIncomeTax_lbl" xml:lang="en-US">Changes In Net Unrealized Gain (Loss) Related to OTTI</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_OtherNetUnrealizedGainsOnInvestmentSecuritiesNetOfDeferredIncometax" xlink:label="sigi_OtherNetUnrealizedGainsOnInvestmentSecuritiesNetOfDeferredIncometax" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_OtherNetUnrealizedGainsOnInvestmentSecuritiesNetOfDeferredIncometax_lbl" xml:lang="en-US">Change in net unrealized gains or losses on investment securities, after tax. This amount excludes non-credit other-than-temporary impairment charges recorded during the period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_OtherNetUnrealizedGainsOnInvestmentSecuritiesNetOfDeferredIncometax_lbl" xml:lang="en-US">Other Net Unrealized Gains On Investment Securities Net Of Deferred IncomeTax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_OtherNetUnrealizedGainsOnInvestmentSecuritiesNetOfDeferredIncometax_lbl" xml:lang="en-US">Other net unrealized (losses) gains on investment securities, net of deferred income tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="sigi_OtherNetUnrealizedGainsOnInvestmentSecuritiesNetOfDeferredIncometax_lbl" xml:lang="en-US">Other net unrealized gains on investment securities, net of deferred income tax</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_TotalUnrealizedGainsLossesOnInvestmentSecurities" xlink:label="sigi_TotalUnrealizedGainsLossesOnInvestmentSecurities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_TotalUnrealizedGainsLossesOnInvestmentSecurities" xlink:to="sigi_TotalUnrealizedGainsLossesOnInvestmentSecurities_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_TotalUnrealizedGainsLossesOnInvestmentSecurities_lbl" xml:lang="en-US">This amount is equal to the sum of: (i) the non-credit portion of other-than-temporary impairment losses on fixed maturity securities recognized in other comprehensive income, net of tax, including subsequent changes to these securities such as amortization on HTM securities or subsequent sales; and (ii) the change in net unrealized gains or losses on investment securities, after tax, excluding non-credit other-than-temporary impairment charges during the period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_TotalUnrealizedGainsLossesOnInvestmentSecurities_lbl" xml:lang="en-US">Total Unrealized Gains Losses on Investment Securities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_TotalUnrealizedGainsLossesOnInvestmentSecurities_lbl" xml:lang="en-US">Total unrealized gains on investment securities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="sigi_TotalUnrealizedGainsLossesOnInvestmentSecurities_lbl" xml:lang="en-US">Net Unrealized gains, Net</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease" xlink:label="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease" xlink:to="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease_lbl" xml:lang="en-US">Other Comprehensive Income Defined Benefit Plans Adjustment Net of Tax Period Increase Decrease</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease_lbl" xml:lang="en-US">Defined benefit pension plans, net of deferred income tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease_lbl" xml:lang="en-US">Defined benefit pension and post-retirement plans, Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease_lbl" xml:lang="en-US">Changes in Defined Benefit Pension and Post-retirement Plans</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_ComprehensiveIncomeNetOfTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xml:lang="en-US">Comprehensive income (loss)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xml:lang="en-US">Comprehensive income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xml:lang="en-US">Comprehensive income, Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xml:lang="en-US">Comprehensive income, Net</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:label="us-gaap_TreasuryStockValueAcquiredCostMethod" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:to="us-gaap_TreasuryStockValueAcquiredCostMethod_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TreasuryStockValueAcquiredCostMethod_lbl" xml:lang="en-US">Treasury Stock Value Acquired Cost Method</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_TreasuryStockValueAcquiredCostMethod_lbl" xml:lang="en-US">Acquisition of treasury stock (shares: 136,904 - 2011; 97,816 - 2010)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_TreasuryStockValueAcquiredCostMethod_lbl" xml:lang="en-US">Acquisition of treasury stock (shares: 135,095 - 2011; 97,493 - 2010)</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="us-gaap_StatementEquityComponentsAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_StatementEquityComponentsAxis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xml:lang="en-US">Statement, Equity Components [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="us-gaap_EquityComponentDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_EquityComponentDomain_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EquityComponentDomain_lbl" xml:lang="en-US">Equity Component [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ParentMember" xlink:label="us-gaap_ParentMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ParentMember" xlink:to="us-gaap_ParentMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ParentMember_lbl" xml:lang="en-US">Parent [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CommonStockMember" xlink:label="us-gaap_CommonStockMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockMember" xlink:to="us-gaap_CommonStockMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockMember_lbl" xml:lang="en-US">Common stock [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="us-gaap_AdditionalPaidInCapitalMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdditionalPaidInCapitalMember" xlink:to="us-gaap_AdditionalPaidInCapitalMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xml:lang="en-US">Additional paid-in capital [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="us-gaap_RetainedEarningsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RetainedEarningsMember" xlink:to="us-gaap_RetainedEarningsMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RetainedEarningsMember_lbl" xml:lang="en-US">Retained earnings [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember_lbl" xml:lang="en-US">Accumulated other comprehensive income (loss) [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_TreasuryStockMember" xlink:label="us-gaap_TreasuryStockMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TreasuryStockMember" xlink:to="us-gaap_TreasuryStockMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TreasuryStockMember_lbl" xml:lang="en-US">Treasury stock [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ComprehensiveIncomeMember" xlink:label="us-gaap_ComprehensiveIncomeMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeMember" xlink:to="us-gaap_ComprehensiveIncomeMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ComprehensiveIncomeMember_lbl" xml:lang="en-US">Comprehensive income [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan" xlink:label="us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan" xlink:to="us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_lbl" xml:lang="en-US">Stock Issued During Period Shares Dividend Reinvestment Plan</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negatedPeriodEnd" xlink:label="us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_lbl" xml:lang="en-US">StockIssuedDuringPeriodSharesDividendReinvestmentPlan</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_lbl" xml:lang="en-US">Dividend reinvestment plan, shares</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:to="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_lbl" xml:lang="en-US">Stock Issued During Period Shares Share Based Compensation</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negatedPeriodStart" xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_lbl" xml:lang="en-US">StockIssuedDuringPeriodSharesShareBasedCompensation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_lbl" xml:lang="en-US">Stock purchase and compensation plans, shares</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_TreasuryStockSharesAcquired" xlink:label="us-gaap_TreasuryStockSharesAcquired" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TreasuryStockSharesAcquired" xlink:to="us-gaap_TreasuryStockSharesAcquired_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TreasuryStockSharesAcquired_lbl" xml:lang="en-US">Treasury Stock Shares Acquired</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_TreasuryStockSharesAcquired_lbl" xml:lang="en-US">Acquisition of treasury stock, shares</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PreferredStockNoParValue" xlink:label="us-gaap_PreferredStockNoParValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockNoParValue" xlink:to="us-gaap_PreferredStockNoParValue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockNoParValue_lbl" xml:lang="en-US">Preferred stock, par value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockNoParValue_lbl" xml:lang="en-US">Preferred stock designated as series A junio preferred stock, par value</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_SeriesJuniorPreferredStockMember" xlink:label="sigi_SeriesJuniorPreferredStockMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_SeriesJuniorPreferredStockMember" xlink:to="sigi_SeriesJuniorPreferredStockMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_SeriesJuniorPreferredStockMember_lbl" xml:lang="en-US">Series A junior preferred stock [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_SeriesJuniorPreferredStockMember_lbl" xml:lang="en-US">Series A junior preferred stock [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="us-gaap_StatementOfCashFlowsAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_StatementOfCashFlowsAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xml:lang="en-US">Statements of Cash Flow [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xml:lang="en-US">Statement of Cash Flows</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US">Operating Activities</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US">Adjustments to reconcile net income to net cash provided by operating activities:</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DepreciationAmortizationAndAccretionNet" xlink:label="us-gaap_DepreciationAmortizationAndAccretionNet" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DepreciationAmortizationAndAccretionNet" xlink:to="us-gaap_DepreciationAmortizationAndAccretionNet_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DepreciationAmortizationAndAccretionNet_lbl" xml:lang="en-US">Depreciation and amortization</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_DepreciationAmortizationAndAccretionNet_lbl" xml:lang="en-US">Depreciation, Amortization and Accretion, Net, Total</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="us-gaap_ShareBasedCompensation" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensation" xlink:to="us-gaap_ShareBasedCompensation_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensation_lbl" xml:lang="en-US">Stock-based compensation expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_ShareBasedCompensation_lbl" xml:lang="en-US">Share-based Compensation, Total</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions" xlink:label="us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions" xlink:to="us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions_lbl" xml:lang="en-US">Undistributed losses of equity method investments</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions_lbl" xml:lang="en-US">Undistributed income of equity method investments</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negatedTotal" xlink:label="us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions_lbl" xml:lang="en-US">Undistributed income of equity method investments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions_lbl" xml:lang="en-US">Income (Loss) from Equity Method Investments, Net of Dividends or Distributions, Total</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xml:lang="en-US">Changes in assets and liabilities:</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_IncreaseDecreaseInReservesForLossesAndLossExpensesNetOfReinsuranceRecoverables" xlink:label="sigi_IncreaseDecreaseInReservesForLossesAndLossExpensesNetOfReinsuranceRecoverables" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_IncreaseDecreaseInReservesForLossesAndLossExpensesNetOfReinsuranceRecoverables" xlink:to="sigi_IncreaseDecreaseInReservesForLossesAndLossExpensesNetOfReinsuranceRecoverables_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_IncreaseDecreaseInReservesForLossesAndLossExpensesNetOfReinsuranceRecoverables_lbl" xml:lang="en-US">The net change during the reporting period in the reserve account established to account for expected losses net of reinsurance recoverables.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_IncreaseDecreaseInReservesForLossesAndLossExpensesNetOfReinsuranceRecoverables_lbl" xml:lang="en-US">Increase decrease in reserves for losses and loss expenses, net of reinsurance recoverables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_IncreaseDecreaseInReservesForLossesAndLossExpensesNetOfReinsuranceRecoverables_lbl" xml:lang="en-US">Increase in reserves for losses and loss expenses, net of reinsurance recoverables</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncreaseDecreaseInUnearnedPremiums" xlink:label="us-gaap_IncreaseDecreaseInUnearnedPremiums" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInUnearnedPremiums" xlink:to="us-gaap_IncreaseDecreaseInUnearnedPremiums_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInUnearnedPremiums_lbl" xml:lang="en-US">Increase in unearned premiums, net of prepaid reinsurance and advance premiums</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_IncreaseDecreaseInUnearnedPremiums_lbl" xml:lang="en-US">Increase in unearned premiums, net of prepaid reinsurance and advance premiums</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncreaseDecreaseInUnearnedPremiums_lbl" xml:lang="en-US">Increase in unearned premiums, net of prepaid reinsurance and advance premiums</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_IncreaseDecreaseInIncomeTaxes" xlink:label="sigi_IncreaseDecreaseInIncomeTaxes" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_IncreaseDecreaseInIncomeTaxes" xlink:to="sigi_IncreaseDecreaseInIncomeTaxes_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_IncreaseDecreaseInIncomeTaxes_lbl" xml:lang="en-US">The increase (decrease) during the reporting period in the amounts payable to taxing authorities for taxes that are based on the reporting entity's earnings, net of amounts receivable from taxing authorities for refunds of overpayments or recoveries of income taxes, and in deferred and other tax liabilities and assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_IncreaseDecreaseInIncomeTaxes_lbl" xml:lang="en-US">Increase Decrease In Income Taxes</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_IncreaseDecreaseInIncomeTaxes_lbl" xml:lang="en-US">Decrease (increase) in net federal income tax recoverable</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncreaseDecreaseInPremiumsReceivable" xlink:label="us-gaap_IncreaseDecreaseInPremiumsReceivable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInPremiumsReceivable" xlink:to="us-gaap_IncreaseDecreaseInPremiumsReceivable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInPremiumsReceivable_lbl" xml:lang="en-US">Increase in premiums receivable</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_IncreaseDecreaseInPremiumsReceivable_lbl" xml:lang="en-US">Increase in premiums receivable</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease" xlink:label="us-gaap_DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease" xlink:to="us-gaap_DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease_lbl" xml:lang="en-US">Deferred Policy Acquisition Costs Period Increase Decrease</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease_lbl" xml:lang="en-US">(Increase) decrease in deferred policy acquisition costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_DeferredPolicyAcquisitionCostsPeriodIncreaseDecrease_lbl" xml:lang="en-US">(Increase) decrease in deferred policy acquisition costs</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncreaseDecreaseInInterestAndDividendsReceivable" xlink:label="us-gaap_IncreaseDecreaseInInterestAndDividendsReceivable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInInterestAndDividendsReceivable" xlink:to="us-gaap_IncreaseDecreaseInInterestAndDividendsReceivable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInInterestAndDividendsReceivable_lbl" xml:lang="en-US">Decrease in interest and dividends due or accrued</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_IncreaseDecreaseInInterestAndDividendsReceivable_lbl" xml:lang="en-US">Decrease (increase) in interest and dividends due or accrued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_IncreaseDecreaseInInterestAndDividendsReceivable_lbl" xml:lang="en-US">Increase (Decrease) in Interest and Dividends Receivable, Total</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_DecreaseIncreaseInAccruedSalariesAndBenefits" xlink:label="sigi_DecreaseIncreaseInAccruedSalariesAndBenefits" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_DecreaseIncreaseInAccruedSalariesAndBenefits" xlink:to="sigi_DecreaseIncreaseInAccruedSalariesAndBenefits_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_DecreaseIncreaseInAccruedSalariesAndBenefits_lbl" xml:lang="en-US">The net change during the reporting period of obligations that are not allocated to loss adjustment expenses related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_DecreaseIncreaseInAccruedSalariesAndBenefits_lbl" xml:lang="en-US">Decrease increase in accrued salaries and benefits</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_DecreaseIncreaseInAccruedSalariesAndBenefits_lbl" xml:lang="en-US">Decrease in accrued salaries and benefits</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_DecreaseIncreaseInAccruedInsuranceExpenses" xlink:label="sigi_DecreaseIncreaseInAccruedInsuranceExpenses" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_DecreaseIncreaseInAccruedInsuranceExpenses" xlink:to="sigi_DecreaseIncreaseInAccruedInsuranceExpenses_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_DecreaseIncreaseInAccruedInsuranceExpenses_lbl" xml:lang="en-US">The net change during the reporting period in the aggregate amount of insurance expenses incurred but not yet paid, including items such as commissions payable and premium taxes.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_DecreaseIncreaseInAccruedInsuranceExpenses_lbl" xml:lang="en-US">Decrease increase in accrued insurance expenses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_DecreaseIncreaseInAccruedInsuranceExpenses_lbl" xml:lang="en-US">Decrease in accrued insurance expenses</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet" xlink:label="us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet" xlink:to="us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_lbl" xml:lang="en-US">Increase Decrease in Other Operating Capital Net</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_lbl" xml:lang="en-US">Other-net</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negatedTotal" xlink:label="us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_lbl" xml:lang="en-US">Other-net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_lbl" xml:lang="en-US">Other-net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_lbl" xml:lang="en-US">Other-net</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_lbl" xml:lang="en-US">Net adjustments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_lbl" xml:lang="en-US">Net adjustments</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xml:lang="en-US">Net cash provided by operating activities</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xml:lang="en-US">Investing Activities</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt" xlink:label="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt" xlink:to="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_lbl" xml:lang="en-US">Purchase of fixed maturity securities, available-for-sale</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_lbl" xml:lang="en-US">Purchase of fixed maturity securities, available-for-sale</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesEquity" xlink:label="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesEquity" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesEquity" xlink:to="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesEquity_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesEquity_lbl" xml:lang="en-US">Purchase of equity securities, available-for-sale</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesEquity_lbl" xml:lang="en-US">Purchase of equity securities, available-for-sale</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PaymentsToAcquireOtherInvestments" xlink:label="us-gaap_PaymentsToAcquireOtherInvestments" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquireOtherInvestments" xlink:to="us-gaap_PaymentsToAcquireOtherInvestments_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsToAcquireOtherInvestments_lbl" xml:lang="en-US">Purchase of other investments</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_PaymentsToAcquireOtherInvestments_lbl" xml:lang="en-US">Purchase of other investments</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PaymentsToAcquireShortTermInvestments" xlink:label="us-gaap_PaymentsToAcquireShortTermInvestments" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquireShortTermInvestments" xlink:to="us-gaap_PaymentsToAcquireShortTermInvestments_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsToAcquireShortTermInvestments_lbl" xml:lang="en-US">Purchase of short-term investments</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_PaymentsToAcquireShortTermInvestments_lbl" xml:lang="en-US">Purchase of short-term investments</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested" xlink:label="us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested" xlink:to="us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested_lbl" xml:lang="en-US">Proceeds from Divestiture of Businesses, Net of Cash Divested</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested_lbl" xml:lang="en-US">Sale of subsidiary</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested_lbl" xml:lang="en-US">Proceeds from Divestiture of Businesses, Net of Cash Divested, Total</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt" xlink:label="us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt" xlink:to="us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_lbl" xml:lang="en-US">Sale of fixed maturity securities, available-for-sale</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ProceedsFromSaleOfShortTermInvestments" xlink:label="us-gaap_ProceedsFromSaleOfShortTermInvestments" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromSaleOfShortTermInvestments" xlink:to="us-gaap_ProceedsFromSaleOfShortTermInvestments_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromSaleOfShortTermInvestments_lbl" xml:lang="en-US">Sale of short-term investments</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities" xlink:label="us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities" xlink:to="us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities_lbl" xml:lang="en-US">Redemption and maturities of fixed maturity securities, held-to-maturity</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities" xlink:label="us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities" xlink:to="us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_lbl" xml:lang="en-US">Redemption and maturities of fixed maturity securities, available-for-sale</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesEquity" xlink:label="us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesEquity" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesEquity" xlink:to="us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesEquity_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesEquity_lbl" xml:lang="en-US">Sale of equity securities, available-for-sale</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesEquity_lbl" xml:lang="en-US">Proceeds from Sale of Available-for-sale Securities, Equity</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_DistributionsFromOtherInvestments" xlink:label="sigi_DistributionsFromOtherInvestments" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_DistributionsFromOtherInvestments" xlink:to="sigi_DistributionsFromOtherInvestments_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_DistributionsFromOtherInvestments_lbl" xml:lang="en-US">The cash inflow associated with the distribution of other investments not otherwise defined in the taxonomy.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_DistributionsFromOtherInvestments_lbl" xml:lang="en-US">Distributions from other investments</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromSaleOfOtherInvestments" xlink:to="us-gaap_ProceedsFromSaleOfOtherInvestments_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromSaleOfOtherInvestments_lbl" xml:lang="en-US">Proceeds from Sale of Other Investments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromSaleOfOtherInvestments_lbl" xml:lang="en-US">Sale of other investments</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xml:lang="en-US">Purchase of property and equipment</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xml:lang="en-US">Purchase of property and equipment</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negatedTotal" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xml:lang="en-US">Purchase of property and equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xml:lang="en-US">Purchase of property and equipment</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xml:lang="en-US">Net cash used in investing activities</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xml:lang="en-US">Financing Activities</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock" xlink:label="us-gaap_PaymentsOfDividendsCommonStock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsOfDividendsCommonStock" xlink:to="us-gaap_PaymentsOfDividendsCommonStock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsOfDividendsCommonStock_lbl" xml:lang="en-US">Payments of dividends Common stock</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_PaymentsOfDividendsCommonStock_lbl" xml:lang="en-US">Dividends to stockholders</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PaymentsOfDividendsCommonStock_lbl" xml:lang="en-US">Dividends to stockholders</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:to="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" xml:lang="en-US">Payments For Repurchase Of Common Stock</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" xml:lang="en-US">Acquisition of treasury stock</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="us-gaap_RepaymentsOfLongTermDebt" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfLongTermDebt" xlink:to="us-gaap_RepaymentsOfLongTermDebt_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RepaymentsOfLongTermDebt_lbl" xml:lang="en-US">Principal payment of notes payable</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_RepaymentsOfLongTermDebt_lbl" xml:lang="en-US">Principal payment of notes payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_RepaymentsOfLongTermDebt_lbl" xml:lang="en-US">Principal payment of notes payable</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions" xlink:label="us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions" xlink:to="us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions_lbl" xml:lang="en-US">Net proceeds from stock purchase and compensation plans</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions_lbl" xml:lang="en-US">Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options, Total</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:label="us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:to="us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_lbl" xml:lang="en-US">Excess tax benefits from share-based payment arrangements</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_lbl" xml:lang="en-US">Excess tax benefits from share-based payment arrangements</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xml:lang="en-US">Net cash used in financing activities</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_NetDecreaseInCashFromContinuingOperations" xlink:label="sigi_NetDecreaseInCashFromContinuingOperations" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_NetDecreaseInCashFromContinuingOperations" xlink:to="sigi_NetDecreaseInCashFromContinuingOperations_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_NetDecreaseInCashFromContinuingOperations_lbl" xml:lang="en-US">Net decrease increase in Cash from Continuing Operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_NetDecreaseInCashFromContinuingOperations_lbl" xml:lang="en-US">Net decrease in cash from continuing operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="sigi_NetDecreaseInCashFromContinuingOperations_lbl" xml:lang="en-US">Net decrease in cash</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_OrganizationAbstract" xlink:label="sigi_OrganizationAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_OrganizationAbstract" xlink:to="sigi_OrganizationAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_OrganizationAbstract_lbl" xml:lang="en-US">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_OrganizationAbstract_lbl" xml:lang="en-US">Organization [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_OrganizationAbstract_lbl" xml:lang="en-US">Organization</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NatureOfOperations" xlink:label="us-gaap_NatureOfOperations" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NatureOfOperations" xlink:to="us-gaap_NatureOfOperations_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NatureOfOperations_lbl" xml:lang="en-US">NatureOfOperations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NatureOfOperations_lbl" xml:lang="en-US">Organization</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_BasisOfPresentationAbstract" xlink:label="sigi_BasisOfPresentationAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_BasisOfPresentationAbstract" xlink:to="sigi_BasisOfPresentationAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_BasisOfPresentationAbstract_lbl" xml:lang="en-US">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_BasisOfPresentationAbstract_lbl" xml:lang="en-US">Basis of Presentation [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_BasisOfPresentationAbstract_lbl" xml:lang="en-US">Basis of Presentation</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_BasisOfAccountingTextBlock" xlink:label="sigi_BasisOfAccountingTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_BasisOfAccountingTextBlock" xlink:to="sigi_BasisOfAccountingTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_BasisOfAccountingTextBlock_lbl" xml:lang="en-US">Description of the basis of accounting used to prepare the financial statements (for example, U.S. Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_BasisOfAccountingTextBlock_lbl" xml:lang="en-US">Basis of Accounting [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_BasisOfAccountingTextBlock_lbl" xml:lang="en-US">Basis of Presentation</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ReclassificationAbstract" xlink:label="sigi_ReclassificationAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ReclassificationAbstract" xlink:to="sigi_ReclassificationAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ReclassificationAbstract_lbl" xml:lang="en-US">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ReclassificationAbstract_lbl" xml:lang="en-US">Reclassification [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ReclassificationAbstract_lbl" xml:lang="en-US">Reclassification</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ReclassificationsTextBlock" xlink:label="sigi_ReclassificationsTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ReclassificationsTextBlock" xlink:to="sigi_ReclassificationsTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ReclassificationsTextBlock_lbl" xml:lang="en-US">Classifications in the current financial statements may be different from classifications in the prior year's financial statements. Disclose any material changes in classification including an explanation of the reason for the change and the areas impacted.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ReclassificationsTextBlock_lbl" xml:lang="en-US">Reclassifications [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ReclassificationsTextBlock_lbl" xml:lang="en-US">Reclassification</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AdoptionOfAccountingPronouncementsAbstract" xlink:label="sigi_AdoptionOfAccountingPronouncementsAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AdoptionOfAccountingPronouncementsAbstract" xlink:to="sigi_AdoptionOfAccountingPronouncementsAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AdoptionOfAccountingPronouncementsAbstract_lbl" xml:lang="en-US">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AdoptionOfAccountingPronouncementsAbstract_lbl" xml:lang="en-US">Adoption of Accounting Pronouncements [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AdoptionOfAccountingPronouncementsAbstract_lbl" xml:lang="en-US">Adoption of Accounting Pronouncements</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AdoptionOfAccountingPronouncementsTextBlock" xlink:label="sigi_AdoptionOfAccountingPronouncementsTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AdoptionOfAccountingPronouncementsTextBlock" xlink:to="sigi_AdoptionOfAccountingPronouncementsTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AdoptionOfAccountingPronouncementsTextBlock_lbl" xml:lang="en-US">This note describes accounting pronouncements and their impact on the entity that were recently adopted or are pending adoption.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AdoptionOfAccountingPronouncementsTextBlock_lbl" xml:lang="en-US">Adoption Of Accounting Pronouncements [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AdoptionOfAccountingPronouncementsTextBlock_lbl" xml:lang="en-US">Adoption of Accounting Pronouncements</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CashFlowSupplementalDisclosuresTextBlock" xlink:label="us-gaap_CashFlowSupplementalDisclosuresTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashFlowSupplementalDisclosuresTextBlock" xlink:to="us-gaap_CashFlowSupplementalDisclosuresTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashFlowSupplementalDisclosuresTextBlock_lbl" xml:lang="en-US">Statements of Cash Flow</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InvestmentsAbstract" xlink:label="us-gaap_InvestmentsAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentsAbstract" xlink:to="us-gaap_InvestmentsAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentsAbstract_lbl" xml:lang="en-US">Investments [Abstract]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_Investmentstextblock" xlink:label="sigi_Investmentstextblock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_Investmentstextblock" xlink:to="sigi_Investmentstextblock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_Investmentstextblock_lbl" xml:lang="en-US">Includes disclosures relating to the balance sheet and income statement components of all investment balances, including fixed maturity securities, equity securities, short-term investments, and other investments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_Investmentstextblock_lbl" xml:lang="en-US">InvestmentsTextBlock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_Investmentstextblock_lbl" xml:lang="en-US">Investments</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FairValueMeasurementsAbstract" xlink:to="sigi_FairValueMeasurementsAbstract_lbl" />
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    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="us-gaap_FairValueDisclosuresTextBlock" />
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    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ReinsuranceDisclosuresAbstract" xlink:label="us-gaap_ReinsuranceDisclosuresAbstract" />
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    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ReinsuranceTextBlock" xlink:label="us-gaap_ReinsuranceTextBlock" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ReinsuranceTextBlock_lbl" xml:lang="en-US">ReinsuranceTextBlock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ReinsuranceTextBlock_lbl" xml:lang="en-US">Reinsurance</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_SegmentInformationAbstract" xlink:to="sigi_SegmentInformationAbstract_lbl" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_SegmentInformationAbstract_lbl" xml:lang="en-US">Segment Information [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_SegmentInformationAbstract_lbl" xml:lang="en-US">Segment Information</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SegmentReportingDisclosureTextBlock" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SegmentReportingDisclosureTextBlock" xlink:to="us-gaap_SegmentReportingDisclosureTextBlock_lbl" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock_lbl" xml:lang="en-US">Segment Information</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_RetirementPlansAbstract" xlink:to="sigi_RetirementPlansAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_RetirementPlansAbstract_lbl" xml:lang="en-US">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_RetirementPlansAbstract_lbl" xml:lang="en-US">Retirement Plans [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_RetirementPlansAbstract_lbl" xml:lang="en-US">Retirement Plans</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:label="us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:to="us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_lbl" xml:lang="en-US">PensionAndOtherPostretirementBenefitsDisclosureTextBlock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_lbl" xml:lang="en-US">Retirement Plans</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNoteAbstract" xlink:to="us-gaap_ComprehensiveIncomeNoteAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ComprehensiveIncomeNoteAbstract_lbl" xml:lang="en-US">Comprehensive Income [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ComprehensiveIncomeNoteTextBlock" xlink:label="us-gaap_ComprehensiveIncomeNoteTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNoteTextBlock" xlink:to="us-gaap_ComprehensiveIncomeNoteTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ComprehensiveIncomeNoteTextBlock_lbl" xml:lang="en-US">ComprehensiveIncomeNoteTextBlock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ComprehensiveIncomeNoteTextBlock_lbl" xml:lang="en-US">Comprehensive Income</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_CommitmentsAndContingenciesAbstract" xlink:label="sigi_CommitmentsAndContingenciesAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_CommitmentsAndContingenciesAbstract" xlink:to="sigi_CommitmentsAndContingenciesAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_CommitmentsAndContingenciesAbstract_lbl" xml:lang="en-US">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_CommitmentsAndContingenciesAbstract_lbl" xml:lang="en-US">Commitments and Contingencies [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_CommitmentsAndContingenciesAbstract_lbl" xml:lang="en-US">Commitments and Contingencies</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:to="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xml:lang="en-US">CommitmentsAndContingenciesDisclosureTextBlock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xml:lang="en-US">Commitments and Contingencies</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_LitigationAbstract" xlink:label="sigi_LitigationAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_LitigationAbstract" xlink:to="sigi_LitigationAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_LitigationAbstract_lbl" xml:lang="en-US">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_LitigationAbstract_lbl" xml:lang="en-US">Litigation [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_LitigationAbstract_lbl" xml:lang="en-US">Litigation</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_LitigationTextBlock" xlink:label="sigi_LitigationTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_LitigationTextBlock" xlink:to="sigi_LitigationTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_LitigationTextBlock_lbl" xml:lang="en-US">Includes disclosure of litigation.  This element may be used as a single block of text to encapsulate the entire disclosure including data and tables.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_LitigationTextBlock_lbl" xml:lang="en-US">Litigation [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_LitigationTextBlock_lbl" xml:lang="en-US">Litigation</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_DiscontinuedOperationsAbstract" xlink:label="sigi_DiscontinuedOperationsAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_DiscontinuedOperationsAbstract" xlink:to="sigi_DiscontinuedOperationsAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_DiscontinuedOperationsAbstract_lbl" xml:lang="en-US">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_DiscontinuedOperationsAbstract_lbl" xml:lang="en-US">Discontinued Operations [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_DiscontinuedOperationsAbstract_lbl" xml:lang="en-US">Discontinued Operations</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock" xlink:to="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock_lbl" xml:lang="en-US">DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock_lbl" xml:lang="en-US">Discontinued Operations</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_CashPaidReceivedDuringPeriodTextblock" xlink:label="sigi_CashPaidReceivedDuringPeriodTextblock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_CashPaidReceivedDuringPeriodTextblock" xlink:to="sigi_CashPaidReceivedDuringPeriodTextblock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_CashPaidReceivedDuringPeriodTextblock_lbl" xml:lang="en-US">Supplemental schedule of cash flow information.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_CashPaidReceivedDuringPeriodTextblock_lbl" xml:lang="en-US">Cash Paid Received During The Period [TextBlock]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_CashPaidReceivedDuringPeriodTextblock_lbl" xml:lang="en-US">Cash Flow Supplemental Disclosures</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_HeldToMaturitySecuritiesTextBlock" xlink:label="us-gaap_HeldToMaturitySecuritiesTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_HeldToMaturitySecuritiesTextBlock" xlink:to="us-gaap_HeldToMaturitySecuritiesTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_HeldToMaturitySecuritiesTextBlock_lbl" xml:lang="en-US">Held-to-maturity Securities [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_HeldToMaturitySecuritiesTextBlock_lbl" xml:lang="en-US">Held-To-Maturity Securities Disclosure</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AvailableForSaleSecuritiesTextBlock" xlink:label="us-gaap_AvailableForSaleSecuritiesTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AvailableForSaleSecuritiesTextBlock" xlink:to="us-gaap_AvailableForSaleSecuritiesTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AvailableForSaleSecuritiesTextBlock_lbl" xml:lang="en-US">Available-for-sale Securities [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AvailableForSaleSecuritiesTextBlock_lbl" xml:lang="en-US">Available-For-Sale Securities Disclosure</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock" xlink:label="sigi_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock" xlink:to="sigi_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock_lbl" xml:lang="en-US">For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value).</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock_lbl" xml:lang="en-US">Schedule Of Fair Value and Gross Pre-Tax Net Unrealized/Unrecognized Loss of Securities by Length of Time</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionTableTextBlock" xlink:label="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionTableTextBlock" xlink:to="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionTableTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionTableTextBlock_lbl" xml:lang="en-US">Tabular disclosure showing the number of held-to-maturity and available-for-sale securities in an unrealized/unrecognized loss position by percentage of market value compared to book value and the related unrealized/unrecognized loss amount.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionTableTextBlock_lbl" xml:lang="en-US">Schedule Of The Number Of Securities In An Unrealized Unrecognized Loss Position [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionTableTextBlock_lbl" xml:lang="en-US">Schedule of the Number of Securities in an Unrealized Unrecognized Loss Position</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfHeldToMaturityFixedMaturitySecuritiesByContractualMaturitiesTextblock" xlink:label="sigi_ScheduleOfHeldToMaturityFixedMaturitySecuritiesByContractualMaturitiesTextblock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfHeldToMaturityFixedMaturitySecuritiesByContractualMaturitiesTextblock" xlink:to="sigi_ScheduleOfHeldToMaturityFixedMaturitySecuritiesByContractualMaturitiesTextblock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfHeldToMaturityFixedMaturitySecuritiesByContractualMaturitiesTextblock_lbl" xml:lang="en-US">This item represents the schedule of held-to-maturity securities based on contractual maturities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfHeldToMaturityFixedMaturitySecuritiesByContractualMaturitiesTextblock_lbl" xml:lang="en-US">Schedule Of Held To Maturity Fixed Maturity Securities By Contractual Maturities [TextBlock]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ScheduleOfHeldToMaturityFixedMaturitySecuritiesByContractualMaturitiesTextblock_lbl" xml:lang="en-US">Schedule of Held-To-Maturity Fixed Maturity Securities By Contractual Maturity</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfAvailableForSaleFixedMaturitySecuritiesByContractualMaturitiesTableTextBlock" xlink:label="sigi_ScheduleOfAvailableForSaleFixedMaturitySecuritiesByContractualMaturitiesTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfAvailableForSaleFixedMaturitySecuritiesByContractualMaturitiesTableTextBlock" xlink:to="sigi_ScheduleOfAvailableForSaleFixedMaturitySecuritiesByContractualMaturitiesTableTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfAvailableForSaleFixedMaturitySecuritiesByContractualMaturitiesTableTextBlock_lbl" xml:lang="en-US">This item represents the schedule for Available-for-sale fixed maturity securities based on contractual maturities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfAvailableForSaleFixedMaturitySecuritiesByContractualMaturitiesTableTextBlock_lbl" xml:lang="en-US">Schedule of Available for Sale Fixed Maturity Securities by Contractual Maturities Table Text Block</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ScheduleOfAvailableForSaleFixedMaturitySecuritiesByContractualMaturitiesTableTextBlock_lbl" xml:lang="en-US">Schedule of Available-for-Sale Fixed Maturity Securities By Contractual Maturity</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfOtherInvestmentPortfolioByStrategyAndRemainingCommitmentAmountAssociatedWithEachStrategyTextblock" xlink:label="sigi_ScheduleOfOtherInvestmentPortfolioByStrategyAndRemainingCommitmentAmountAssociatedWithEachStrategyTextblock" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfOtherInvestmentPortfolioByStrategyAndRemainingCommitmentAmountAssociatedWithEachStrategyTextblock_lbl" xml:lang="en-US">Represents disclosure of information regarding the other investment portfolio, including carrying value and remaining commitments on the alternative investment portion of that portfolio, broken out by strategy.</label>
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    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfAggregatedSummarizedFinancialInformationForPartnerhipsInOurAlternativeInvestmentPortfolioTableTextBlock" xlink:label="sigi_ScheduleOfAggregatedSummarizedFinancialInformationForPartnerhipsInOurAlternativeInvestmentPortfolioTableTextBlock" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfAggregatedSummarizedFinancialInformationForPartnerhipsInOurAlternativeInvestmentPortfolioTableTextBlock_lbl" xml:lang="en-US">Schedule of aggregate summarized income statement information for alternative investments accounted for by the equity method.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfAggregatedSummarizedFinancialInformationForPartnerhipsInOurAlternativeInvestmentPortfolioTableTextBlock_lbl" xml:lang="en-US">Schedule Of Aggregated Summarized Financial Information For Partnerhips In Our Alternative Investment Portfolio [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ScheduleOfAggregatedSummarizedFinancialInformationForPartnerhipsInOurAlternativeInvestmentPortfolioTableTextBlock_lbl" xml:lang="en-US">Aggregated Summarized Financial Information for Partnerships in our Alternative Investment Portfolio</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_NetInvestmentIncomeTableTextblock" xlink:to="sigi_NetInvestmentIncomeTableTextblock_lbl" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_NetInvestmentIncomeTableTextblock_lbl" xml:lang="en-US">Net Investment Income Table Textblock</label>
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    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_NetInvestmentIncomeOnOtherInvestmentsByStrategyTextBlock" xlink:label="sigi_NetInvestmentIncomeOnOtherInvestmentsByStrategyTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_NetInvestmentIncomeOnOtherInvestmentsByStrategyTextBlock" xlink:to="sigi_NetInvestmentIncomeOnOtherInvestmentsByStrategyTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_NetInvestmentIncomeOnOtherInvestmentsByStrategyTextBlock_lbl" xml:lang="en-US">Tabular disclosure of net investment income earned from other investments, which primarily consist of investments in limited partnerships. This item does not include realized gains or losses.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_NetInvestmentIncomeOnOtherInvestmentsByStrategyTextBlock_lbl" xml:lang="en-US">Net Investment Income On Other Investments By Strategy [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_NetInvestmentIncomeOnOtherInvestmentsByStrategyTextBlock_lbl" xml:lang="en-US">Net Investment Income On Other Investments By Strategy</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfOTTIByAssetTypeTextblock" xlink:label="sigi_ScheduleOfOTTIByAssetTypeTextblock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfOTTIByAssetTypeTextblock" xlink:to="sigi_ScheduleOfOTTIByAssetTypeTextblock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfOTTIByAssetTypeTextblock_lbl" xml:lang="en-US">This item represents the schedule of other-than-temporary impairments recognized in the statement of income and other comprehensive income by asset type.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfOTTIByAssetTypeTextblock_lbl" xml:lang="en-US">Schedule Of O T T I By Asset Type [TextBlock]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ScheduleOfOTTIByAssetTypeTextblock_lbl" xml:lang="en-US">OTTI by Asset Type</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfCreditLossImpairmentsOnFixedMaturitySecuritiesForWhichAportionOfOTTIChargeWasRecognizedInOCITextblock" xlink:label="sigi_ScheduleOfCreditLossImpairmentsOnFixedMaturitySecuritiesForWhichAportionOfOTTIChargeWasRecognizedInOCITextblock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfCreditLossImpairmentsOnFixedMaturitySecuritiesForWhichAportionOfOTTIChargeWasRecognizedInOCITextblock" xlink:to="sigi_ScheduleOfCreditLossImpairmentsOnFixedMaturitySecuritiesForWhichAportionOfOTTIChargeWasRecognizedInOCITextblock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfCreditLossImpairmentsOnFixedMaturitySecuritiesForWhichAportionOfOTTIChargeWasRecognizedInOCITextblock_lbl" xml:lang="en-US">This schedule represents a tabular rollforward of the credit loss impairments on fixed maturity securities for which a portion of the other-than-temporary impairment charge was recognized in other comprehensive income for the reporting periods indicated.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfCreditLossImpairmentsOnFixedMaturitySecuritiesForWhichAportionOfOTTIChargeWasRecognizedInOCITextblock_lbl" xml:lang="en-US">Schedule Of Credit Loss Impairments On Fixed Maturity Securities For Which APortion Of The O T T I Charge Was Recognized In O C I [TextBlock]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ScheduleOfCreditLossImpairmentsOnFixedMaturitySecuritiesForWhichAportionOfOTTIChargeWasRecognizedInOCITextblock_lbl" xml:lang="en-US">Gross Credit Loss Impairments on Fixed Maturity Securities for Which a Portion of the OTTI Charge Was Recognized In OCI</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfComponentsOfNetRealizedGainsLossesExcludingOttiChargesTextBlock" xlink:label="sigi_ScheduleOfComponentsOfNetRealizedGainsLossesExcludingOttiChargesTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfComponentsOfNetRealizedGainsLossesExcludingOttiChargesTextBlock" xlink:to="sigi_ScheduleOfComponentsOfNetRealizedGainsLossesExcludingOttiChargesTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfComponentsOfNetRealizedGainsLossesExcludingOttiChargesTextBlock_lbl" xml:lang="en-US">This schedules represents the components of realized gains or losses during the reporting period, excluding other-than-temporary impairment charges.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfComponentsOfNetRealizedGainsLossesExcludingOttiChargesTextBlock_lbl" xml:lang="en-US">Schedule of Components of Net Realized Gains Losses Excluding OTTI Charges [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ScheduleOfComponentsOfNetRealizedGainsLossesExcludingOttiChargesTextBlock_lbl" xml:lang="en-US">Components of Net Realized Gains Excluding OTTI Charges</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueByBalanceSheetGroupingTextBlock" xlink:label="us-gaap_FairValueByBalanceSheetGroupingTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueByBalanceSheetGroupingTextBlock" xlink:to="us-gaap_FairValueByBalanceSheetGroupingTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueByBalanceSheetGroupingTextBlock_lbl" xml:lang="en-US">Fair Value, by Balance Sheet Grouping [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueByBalanceSheetGroupingTextBlock_lbl" xml:lang="en-US">The Carrying Amounts and Estimated Fair Values of Financial Instruments</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock" xlink:to="us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock_lbl" xml:lang="en-US">Fair Value, Assets Measured on Recurring Basis [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock_lbl" xml:lang="en-US">Quantitative Disclosures of Our Financial Assets That Were Measured At Fair Value</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTableTextBlock" xlink:label="sigi_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTableTextBlock" xlink:to="sigi_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTableTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTableTextBlock_lbl" xml:lang="en-US">Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income, and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTableTextBlock_lbl" xml:lang="en-US">Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTableTextBlock_lbl" xml:lang="en-US">Summary of the Changes in Fair Value of Securities Using Level 3 Inputs</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfDirectAssumedAndCededReinsuranceAmountsTextBlock" xlink:label="sigi_ScheduleOfDirectAssumedAndCededReinsuranceAmountsTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfDirectAssumedAndCededReinsuranceAmountsTextBlock" xlink:to="sigi_ScheduleOfDirectAssumedAndCededReinsuranceAmountsTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfDirectAssumedAndCededReinsuranceAmountsTextBlock_lbl" xml:lang="en-US">Schedule of the company's direct, assumed and ceded reinsurance amounts by premiums written, premiums earned, and losses and loss expenses incurred.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfDirectAssumedAndCededReinsuranceAmountsTextBlock_lbl" xml:lang="en-US">Schedule Of Direct Assumed And Ceded Reinsurance Amounts [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ScheduleOfDirectAssumedAndCededReinsuranceAmountsTextBlock_lbl" xml:lang="en-US">List of Direct, Assumed, and Ceded Reinsurance Amounts</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfFloodCededPremiumsAndLossesTextBlock" xlink:label="sigi_ScheduleOfFloodCededPremiumsAndLossesTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfFloodCededPremiumsAndLossesTextBlock" xlink:to="sigi_ScheduleOfFloodCededPremiumsAndLossesTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfFloodCededPremiumsAndLossesTextBlock_lbl" xml:lang="en-US">This table discloses the premiums and losses and loss expenses that are ceded to the National Flood Insurance Program.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfFloodCededPremiumsAndLossesTextBlock_lbl" xml:lang="en-US">Schedule Of Flood Ceded Premiums And Losses [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ScheduleOfFloodCededPremiumsAndLossesTextBlock_lbl" xml:lang="en-US">Ceded premiums and losses related to flood operations</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfRevenueFromContinuingOperationsBySegmentTextBlock" xlink:label="sigi_ScheduleOfRevenueFromContinuingOperationsBySegmentTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfRevenueFromContinuingOperationsBySegmentTextBlock" xlink:to="sigi_ScheduleOfRevenueFromContinuingOperationsBySegmentTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfRevenueFromContinuingOperationsBySegmentTextBlock_lbl" xml:lang="en-US">This element captures the disclosure about revenue from continuing operations for each reportable segment, as a single block of text. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfRevenueFromContinuingOperationsBySegmentTextBlock_lbl" xml:lang="en-US">Schedule Of Revenue From Continuing Operations By Segment [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ScheduleOfRevenueFromContinuingOperationsBySegmentTextBlock_lbl" xml:lang="en-US">Revenue from Continuing Operations by Segment</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfIncomeLossFromContinuingOperationsBeforeFederalIncomeTaxBySegmentTextBlock" xlink:label="sigi_ScheduleOfIncomeLossFromContinuingOperationsBeforeFederalIncomeTaxBySegmentTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfIncomeLossFromContinuingOperationsBeforeFederalIncomeTaxBySegmentTextBlock" xlink:to="sigi_ScheduleOfIncomeLossFromContinuingOperationsBeforeFederalIncomeTaxBySegmentTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfIncomeLossFromContinuingOperationsBeforeFederalIncomeTaxBySegmentTextBlock_lbl" xml:lang="en-US">This element captures the disclosure about income or loss from continuing operations before federal income tax for each reportable segment, as a single block of text. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfIncomeLossFromContinuingOperationsBeforeFederalIncomeTaxBySegmentTextBlock_lbl" xml:lang="en-US">Schedule Of Income Loss From Continuing Operations Before Federal Income Tax By Segment [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ScheduleOfIncomeLossFromContinuingOperationsBeforeFederalIncomeTaxBySegmentTextBlock_lbl" xml:lang="en-US">Income From Continuing Operations, Before Federal Income Tax</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock" xlink:label="us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock_lbl" xml:lang="en-US">Schedule of Defined Benefit Plans Disclosures [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock_lbl" xml:lang="en-US">Retirement Income Plan and Retirement Life Plan</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_WeightedAverageExpenseAssumptionsTextBlock" xlink:label="sigi_WeightedAverageExpenseAssumptionsTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_WeightedAverageExpenseAssumptionsTextBlock" xlink:to="sigi_WeightedAverageExpenseAssumptionsTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_WeightedAverageExpenseAssumptionsTextBlock_lbl" xml:lang="en-US">This schedule captures the weighted average assumptions used in calculating the net periodic benefit cost of defined benefit plans.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_WeightedAverageExpenseAssumptionsTextBlock_lbl" xml:lang="en-US">Weighted Average Expense Assumptions [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_WeightedAverageExpenseAssumptionsTextBlock_lbl" xml:lang="en-US">Weighted-Average Expense Assumptions</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfComponentsOfComprehensiveIncomeLossGrossAndNetOfTaxTextBlock" xlink:label="sigi_ScheduleOfComponentsOfComprehensiveIncomeLossGrossAndNetOfTaxTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfComponentsOfComprehensiveIncomeLossGrossAndNetOfTaxTextBlock" xlink:to="sigi_ScheduleOfComponentsOfComprehensiveIncomeLossGrossAndNetOfTaxTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfComponentsOfComprehensiveIncomeLossGrossAndNetOfTaxTextBlock_lbl" xml:lang="en-US">This schedule presents the components of other comprehensive income (loss), both gross and net of tax.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfComponentsOfComprehensiveIncomeLossGrossAndNetOfTaxTextBlock_lbl" xml:lang="en-US">Schedule Of Components Of Comprehensive Income Loss Gross And Net Of Tax [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ScheduleOfComponentsOfComprehensiveIncomeLossGrossAndNetOfTaxTextBlock_lbl" xml:lang="en-US">Components of Comprehensive Income-Gross and Net of Tax</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock" xlink:label="sigi_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock" xlink:to="sigi_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_lbl" xml:lang="en-US">Tabular disclosure of the components of accumulated other comprehensive income (loss).</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_lbl" xml:lang="en-US">Schedule Of Accumulated Other Comprehensive Income Loss [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_lbl" xml:lang="en-US">Components of Accumulated Other Comprehensive Income</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_NumberOfStatesInWhichEntityOperates" xlink:label="sigi_NumberOfStatesInWhichEntityOperates" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_NumberOfStatesInWhichEntityOperates_lbl" xml:lang="en-US">The number of states the entity operates in as of the balance sheet date.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_NumberOfStatesInWhichEntityOperates_lbl" xml:lang="en-US">Number Of States in Which Entity Operates</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_PotentialAfterTaxImpactOnEntitysStockholdersEquity_lbl" xml:lang="en-US">Potential after-tax impact on the entity's stockholders' equity as a result of the adoption of the accounting pronouncement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_PotentialAfterTaxImpactOnEntitysStockholdersEquity_lbl" xml:lang="en-US">Potential After Tax Impact on Entitys Stockholders Equity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_PotentialAfterTaxImpactOnEntitysStockholdersEquity_lbl" xml:lang="en-US">Potential after-tax impact on stockholders' equity</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_PotentialAfterTaxImpactOnEntitysBookValuePerShare" xlink:label="sigi_PotentialAfterTaxImpactOnEntitysBookValuePerShare" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_PotentialAfterTaxImpactOnEntitysBookValuePerShare" xlink:to="sigi_PotentialAfterTaxImpactOnEntitysBookValuePerShare_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_PotentialAfterTaxImpactOnEntitysBookValuePerShare_lbl" xml:lang="en-US">Potential after-tax impact on the entity's stockholders' book value per share as a result of the adoption of the accounting pronouncement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_PotentialAfterTaxImpactOnEntitysBookValuePerShare_lbl" xml:lang="en-US">Potential After Tax Impact On Entitys Book Value Per Share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_PotentialAfterTaxImpactOnEntitysBookValuePerShare_lbl" xml:lang="en-US">Potential after-tax impact on book value per share</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InterestPaid" xlink:label="us-gaap_InterestPaid" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestPaid" xlink:to="us-gaap_InterestPaid_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestPaid_lbl" xml:lang="en-US">Interest Paid</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InterestPaid_lbl" xml:lang="en-US">Interest</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_FederalIncomeTaxesPaidNet" xlink:label="sigi_FederalIncomeTaxesPaidNet" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FederalIncomeTaxesPaidNet" xlink:to="sigi_FederalIncomeTaxesPaidNet_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_FederalIncomeTaxesPaidNet_lbl" xml:lang="en-US">The amount of cash paid during the current period to federal authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of federal taxes.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_FederalIncomeTaxesPaidNet_lbl" xml:lang="en-US">Federal Income Taxes Paid Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_FederalIncomeTaxesPaidNet_lbl" xml:lang="en-US">Federal income tax</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfHeldToMaturitySecuritiesTable" xlink:label="us-gaap_ScheduleOfHeldToMaturitySecuritiesTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfHeldToMaturitySecuritiesTable" xlink:to="us-gaap_ScheduleOfHeldToMaturitySecuritiesTable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfHeldToMaturitySecuritiesTable_lbl" xml:lang="en-US">Schedule of Held-to-maturity Securities [Table]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfHeldToMaturitySecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis" xlink:label="us-gaap_ScheduleOfHeldToMaturitySecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfHeldToMaturitySecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis" xlink:to="us-gaap_ScheduleOfHeldToMaturitySecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfHeldToMaturitySecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis_lbl" xml:lang="en-US">Schedule of Held-to-maturity Securities, Major Types of Debt and Equity Securities [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_MajorTypesOfDebtSecuritiesDomain" xlink:label="us-gaap_MajorTypesOfDebtSecuritiesDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MajorTypesOfDebtSecuritiesDomain" xlink:to="us-gaap_MajorTypesOfDebtSecuritiesDomain_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MajorTypesOfDebtSecuritiesDomain_lbl" xml:lang="en-US">Major Types of Debt Securities [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_USGovernmentAndGovernmentAgenciesAndAuthoritiesMember" xlink:label="us-gaap_USGovernmentAndGovernmentAgenciesAndAuthoritiesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_USGovernmentAndGovernmentAgenciesAndAuthoritiesMember" xlink:to="us-gaap_USGovernmentAndGovernmentAgenciesAndAuthoritiesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_USGovernmentAndGovernmentAgenciesAndAuthoritiesMember_lbl" xml:lang="en-US">U.S. Government and Government Agencies [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_HeldToMaturitySecuritiesAmortizedCost" xlink:label="sigi_HeldToMaturitySecuritiesAmortizedCost" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_HeldToMaturitySecuritiesAmortizedCost" xlink:to="sigi_HeldToMaturitySecuritiesAmortizedCost_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_HeldToMaturitySecuritiesAmortizedCost_lbl" xml:lang="en-US">This item represents debt securities categorized as held-to-maturity, at cost, net of adjustments made for amortization and net unrealized gains (losses) resulting from:  (i) other-than-temporary impairments and (ii) a previous available-for-sale designation.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_HeldToMaturitySecuritiesAmortizedCost_lbl" xml:lang="en-US">Held To Maturity Securities Amortized Cost</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_HeldToMaturitySecuritiesAmortizedCost_lbl" xml:lang="en-US">Amortized Cost</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_HeldToMaturitySecuritiesNetUnrealizedGainsLosses" xlink:label="sigi_HeldToMaturitySecuritiesNetUnrealizedGainsLosses" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_HeldToMaturitySecuritiesNetUnrealizedGainsLosses" xlink:to="sigi_HeldToMaturitySecuritiesNetUnrealizedGainsLosses_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_HeldToMaturitySecuritiesNetUnrealizedGainsLosses_lbl" xml:lang="en-US">The remaining aggregate increase (decrease) in the market value of held-to-maturity securities either (i) prior to the securities' transfer to a held-to-maturity designation or (ii) resulting from a non-credit other-than-temporary impairment.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_HeldToMaturitySecuritiesNetUnrealizedGainsLosses_lbl" xml:lang="en-US">Held To Maturity Securities Net Unrealized Gains losses</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_HeldToMaturitySecuritiesNetUnrealizedGainsLosses_lbl" xml:lang="en-US">Net Unrealized Gains (Losses)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_HeldToMaturitySecuritiesNetUnrealizedGainsLosses_lbl" xml:lang="en-US">Net Unrealized Gains (Losses)</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_HeldToMaturitySecuritiesGrossUnrecognizedHoldingGains" xlink:label="sigi_HeldToMaturitySecuritiesGrossUnrecognizedHoldingGains" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_HeldToMaturitySecuritiesGrossUnrecognizedHoldingGains" xlink:to="sigi_HeldToMaturitySecuritiesGrossUnrecognizedHoldingGains_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_HeldToMaturitySecuritiesGrossUnrecognizedHoldingGains_lbl" xml:lang="en-US">As of the balance sheet date, the excess of fair value over carrying value of a debt security categorized as held-to-maturity, exclusive of dividend or interest income recognized but not yet received and exclusive of any write-downs for other-than-temporary impairment. Such item represents the gross unrecognized holding gain.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_HeldToMaturitySecuritiesGrossUnrecognizedHoldingGains_lbl" xml:lang="en-US">Held To Maturity Securities Gross Unrecognized Holding Gains</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_HeldToMaturitySecuritiesGrossUnrecognizedHoldingGains_lbl" xml:lang="en-US">Unrecognized Holding Gains</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_HeldToMaturitySecuritiesGrossUnrecognizedHoldingLosses" xlink:label="sigi_HeldToMaturitySecuritiesGrossUnrecognizedHoldingLosses" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_HeldToMaturitySecuritiesGrossUnrecognizedHoldingLosses" xlink:to="sigi_HeldToMaturitySecuritiesGrossUnrecognizedHoldingLosses_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_HeldToMaturitySecuritiesGrossUnrecognizedHoldingLosses_lbl" xml:lang="en-US">As of the balance sheet date, the excess of carrying value over fair value of a debt security categorized as held-to-maturity, exclusive of dividend or interest income recognized but not yet received and exclusive of any write-downs for other-than-temporary impairment. Such item represents the gross unrecognized holding loss.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_HeldToMaturitySecuritiesGrossUnrecognizedHoldingLosses_lbl" xml:lang="en-US">Held To Maturity Securities Gross Unrecognized Holding Losses</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_HeldToMaturitySecuritiesGrossUnrecognizedHoldingLosses_lbl" xml:lang="en-US">Unrecognized Holding Losses</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_GovernmentGuaranteedAgencySecuritiesCarryingValue" xlink:label="sigi_GovernmentGuaranteedAgencySecuritiesCarryingValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_GovernmentGuaranteedAgencySecuritiesCarryingValue" xlink:to="sigi_GovernmentGuaranteedAgencySecuritiesCarryingValue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_GovernmentGuaranteedAgencySecuritiesCarryingValue_lbl" xml:lang="en-US">The carrying value of agency securities that are issued by a particular agency of the federal government which are guaranteed by the U.S. government.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_GovernmentGuaranteedAgencySecuritiesCarryingValue_lbl" xml:lang="en-US">Government Guaranteed Agency Securities Carrying Value</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_HeldToMaturitySecuritiesAverageDuration" xlink:label="sigi_HeldToMaturitySecuritiesAverageDuration" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_HeldToMaturitySecuritiesAverageDuration" xlink:to="sigi_HeldToMaturitySecuritiesAverageDuration_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_HeldToMaturitySecuritiesAverageDuration_lbl" xml:lang="en-US">Held To Maturity securities average duration</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_HeldToMaturitySecuritiesAverageDuration_lbl" xml:lang="en-US">Held To Maturity Securities Average Duration</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_HeldToMaturitySecuritiesAverageDuration_lbl" xml:lang="en-US">Held To Maturity securities average duration</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesTable" xlink:label="us-gaap_ScheduleOfAvailableForSaleSecuritiesTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfAvailableForSaleSecuritiesTable" xlink:to="us-gaap_ScheduleOfAvailableForSaleSecuritiesTable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfAvailableForSaleSecuritiesTable_lbl" xml:lang="en-US">Schedule of Available-for-sale Securities [Table]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AvailableForSaleSecuritiesAmortizedCost" xlink:label="us-gaap_AvailableForSaleSecuritiesAmortizedCost" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AvailableForSaleSecuritiesAmortizedCost" xlink:to="us-gaap_AvailableForSaleSecuritiesAmortizedCost_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AvailableForSaleSecuritiesAmortizedCost_lbl" xml:lang="en-US">Available-for-sale Securities, Amortized Cost</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AvailableForSaleSecuritiesAmortizedCost_lbl" xml:lang="en-US">Cost/Amortized Cost</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AvailableForSaleSecuritiesGrossUnrealizedGain" xlink:label="sigi_AvailableForSaleSecuritiesGrossUnrealizedGain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AvailableForSaleSecuritiesGrossUnrealizedGain" xlink:to="sigi_AvailableForSaleSecuritiesGrossUnrealizedGain_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AvailableForSaleSecuritiesGrossUnrealizedGain_lbl" xml:lang="en-US">This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AvailableForSaleSecuritiesGrossUnrealizedGain_lbl" xml:lang="en-US">Available For Sale Securities Gross Unrealized Gain</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AvailableForSaleSecuritiesGrossUnrealizedGain_lbl" xml:lang="en-US">Unrealized Gains</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AvailableForSaleSecuritiesGrossUnrealizedLosses1" xlink:label="sigi_AvailableForSaleSecuritiesGrossUnrealizedLosses1" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AvailableForSaleSecuritiesGrossUnrealizedLosses1" xlink:to="sigi_AvailableForSaleSecuritiesGrossUnrealizedLosses1_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AvailableForSaleSecuritiesGrossUnrealizedLosses1_lbl" xml:lang="en-US">This item represents the gross unrealized losses for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AvailableForSaleSecuritiesGrossUnrealizedLosses1_lbl" xml:lang="en-US">Available For Sale Securities Gross Unrealized Losses 1</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AvailableForSaleSecuritiesGrossUnrealizedLosses1_lbl" xml:lang="en-US">Unrealized Losses</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AvailableForSaleSecurities" xlink:label="us-gaap_AvailableForSaleSecurities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AvailableForSaleSecurities" xlink:to="us-gaap_AvailableForSaleSecurities_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AvailableForSaleSecurities_lbl" xml:lang="en-US">Available-for-sale Securities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AvailableForSaleSecurities_lbl" xml:lang="en-US">Fixed maturity securities, AFS</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_AvailableForSaleSecurities_lbl" xml:lang="en-US">Available-for-sale Securities, Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_AvailableForSaleSecurities_lbl" xml:lang="en-US">Fair Value</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_CorporateSecuritiesFullyGuaranteedByFederalDepositInsuranceCorporation" xlink:label="sigi_CorporateSecuritiesFullyGuaranteedByFederalDepositInsuranceCorporation" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_CorporateSecuritiesFullyGuaranteedByFederalDepositInsuranceCorporation" xlink:to="sigi_CorporateSecuritiesFullyGuaranteedByFederalDepositInsuranceCorporation_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_CorporateSecuritiesFullyGuaranteedByFederalDepositInsuranceCorporation_lbl" xml:lang="en-US">Represents the fair value of corporate securities fully guaranteed by the Federal Deposit Insurance Corporation.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_CorporateSecuritiesFullyGuaranteedByFederalDepositInsuranceCorporation_lbl" xml:lang="en-US">Corporate Securities Fully Guaranteed By Federal Deposit Insurance Corporation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_CorporateSecuritiesFullyGuaranteedByFederalDepositInsuranceCorporation_lbl" xml:lang="en-US">Corporate securities fully guaranteed by the Federal Deposit Insurance Corporation ("FDIC")</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_GovernmentGuaranteedAgencySecuritiesFairValue" xlink:label="sigi_GovernmentGuaranteedAgencySecuritiesFairValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_GovernmentGuaranteedAgencySecuritiesFairValue" xlink:to="sigi_GovernmentGuaranteedAgencySecuritiesFairValue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_GovernmentGuaranteedAgencySecuritiesFairValue_lbl" xml:lang="en-US">The fair value of agency securities that are issued by a particular agency of the federal government which are guaranteed by the U.S. government.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_GovernmentGuaranteedAgencySecuritiesFairValue_lbl" xml:lang="en-US">Government Guaranteed Agency Securities Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_GovernmentGuaranteedAgencySecuritiesFairValue_lbl" xml:lang="en-US">Government guaranteed agency securities fair value</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_NumberOfHeldToMaturitySecuritiesTransferredSecurityAtCarryingValue" xlink:label="sigi_NumberOfHeldToMaturitySecuritiesTransferredSecurityAtCarryingValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_NumberOfHeldToMaturitySecuritiesTransferredSecurityAtCarryingValue" xlink:to="sigi_NumberOfHeldToMaturitySecuritiesTransferredSecurityAtCarryingValue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_NumberOfHeldToMaturitySecuritiesTransferredSecurityAtCarryingValue_lbl" xml:lang="en-US">This item represents the number of held-to-maturity securities reclassified to available-for-sale securities due to an unanticipated significant deterioration in credit quality.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_NumberOfHeldToMaturitySecuritiesTransferredSecurityAtCarryingValue_lbl" xml:lang="en-US">Number Of Held To Maturity Securities Transferred Security At Carrying Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_NumberOfHeldToMaturitySecuritiesTransferredSecurityAtCarryingValue_lbl" xml:lang="en-US">Number of held to maturity securities transferred to available-for-sale</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_HeldToMaturitySecuritiesTransferredSecurityAtCarryingValue" xlink:label="us-gaap_HeldToMaturitySecuritiesTransferredSecurityAtCarryingValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_HeldToMaturitySecuritiesTransferredSecurityAtCarryingValue" xlink:to="us-gaap_HeldToMaturitySecuritiesTransferredSecurityAtCarryingValue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_HeldToMaturitySecuritiesTransferredSecurityAtCarryingValue_lbl" xml:lang="en-US">Held-to-maturity Securities, Transferred Security, at Carrying Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_HeldToMaturitySecuritiesTransferredSecurityAtCarryingValue_lbl" xml:lang="en-US">Securities reclassified from the HTM category to AFS carrying value</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_HeldToMaturitySecuritiesReclassifiedToAvailableForSaleSecuritiesUnrecognizedGainLoss" xlink:label="sigi_HeldToMaturitySecuritiesReclassifiedToAvailableForSaleSecuritiesUnrecognizedGainLoss" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_HeldToMaturitySecuritiesReclassifiedToAvailableForSaleSecuritiesUnrecognizedGainLoss" xlink:to="sigi_HeldToMaturitySecuritiesReclassifiedToAvailableForSaleSecuritiesUnrecognizedGainLoss_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_HeldToMaturitySecuritiesReclassifiedToAvailableForSaleSecuritiesUnrecognizedGainLoss_lbl" xml:lang="en-US">This item represents the unrealized gain or loss recognized in other comprehensive income (a separate component of shareholders' equity) as a result of securities categorized as held-to-maturity being transferred to the available-for-sale securities category.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_HeldToMaturitySecuritiesReclassifiedToAvailableForSaleSecuritiesUnrecognizedGainLoss_lbl" xml:lang="en-US">Held To Maturity Securities Reclassified To Available For Sale Securities Unrecognized Gain Loss</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_HeldToMaturitySecuritiesReclassifiedToAvailableForSaleSecuritiesUnrecognizedGainLoss_lbl" xml:lang="en-US">Securities reclassified from the HTM category to AFS net unrecognized gain</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfFairValueAndGrossPreTaxNetUnrealizedUnrecognizedLossOfSecuritiesByLengthOfTimeTable" xlink:label="sigi_ScheduleOfFairValueAndGrossPreTaxNetUnrealizedUnrecognizedLossOfSecuritiesByLengthOfTimeTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfFairValueAndGrossPreTaxNetUnrealizedUnrecognizedLossOfSecuritiesByLengthOfTimeTable" xlink:to="sigi_ScheduleOfFairValueAndGrossPreTaxNetUnrealizedUnrecognizedLossOfSecuritiesByLengthOfTimeTable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfFairValueAndGrossPreTaxNetUnrealizedUnrecognizedLossOfSecuritiesByLengthOfTimeTable_lbl" xml:lang="en-US">Schedule showing, for all securities in a net unrealized/unrecognized loss position, the fair value and gross pre-tax net unrealized/unrecognized loss by length of time those securities have continuously been in a net loss position.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfFairValueAndGrossPreTaxNetUnrealizedUnrecognizedLossOfSecuritiesByLengthOfTimeTable_lbl" xml:lang="en-US">Schedule of Fair Value and Gross Pre Tax Net Unrealized Unrecognized Loss of Securities By Length of Time [Table]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue" xlink:label="us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue" xlink:to="us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_lbl" xml:lang="en-US">Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_lbl" xml:lang="en-US">AFS Fair Value, Less than 12 months</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses1" xlink:label="sigi_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses1" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses1" xlink:to="sigi_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses1_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses1_lbl" xml:lang="en-US">This item represents the excess of amortized cost basis over fair value of securities that have been in a loss position for less than twelve months for those securities which are categorized neither as held-to-maturity nor trading securities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses1_lbl" xml:lang="en-US">Available for sale Securities Continuous Unrealized Loss Position Less Than 12 Months Aggregate Losses 1</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses1_lbl" xml:lang="en-US">AFS Unrealized Losses, Less than 12 months</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses1_lbl" xml:lang="en-US">AFS Unrealized Losses, Less than 12 months</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue" xlink:label="us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue" xlink:to="us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_lbl" xml:lang="en-US">Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_lbl" xml:lang="en-US">AFS Fair Value, 12 months or longer</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses1" xlink:label="sigi_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses1" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses1" xlink:to="sigi_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses1_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses1_lbl" xml:lang="en-US">This item represents the excess of amortized cost basis over fair value of securities that have been in a loss position for twelve months or longer for those securities which are categorized neither as held-to-maturity nor trading securities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses1_lbl" xml:lang="en-US">Available for sale Securities Continuous Unrealized Loss Position 12 Months Or Longer Aggregate Losses 1</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses1_lbl" xml:lang="en-US">AFS Unrealized Losses, 12 months or longer</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses1_lbl" xml:lang="en-US">AFS Unrealized Losses, 12 months or longer</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="sigi_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses1_lbl" xml:lang="en-US">AFS CMBS Unrealized loss</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue" xlink:label="us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue" xlink:to="us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_lbl" xml:lang="en-US">Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_lbl" xml:lang="en-US">HTM Fair Value, Less than 12 months</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses" xlink:label="sigi_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses" xlink:to="sigi_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses_lbl" xml:lang="en-US">This item represents the unrealized holding gains/losses of a held-to-maturity security that has been in a continuous unrealized/unrecognized loss position for less than twelve months. The unrealized holding gains/losses represent the remaining unrealized gain/loss amounts on securities that were transferred to a held-to-maturity designation from an available-for-sale designation as well as other-than-temporary impairment losses that are recognized in accumulated other comprehensive income.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses_lbl" xml:lang="en-US">Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Aggregate Losses</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses_lbl" xml:lang="en-US">HTM Unrealized (Losses) Gains, Less than 12 months</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses_lbl" xml:lang="en-US">HTM Unrealized Losses), Less than 12 months</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_HeldToMaturitySecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionLessThanTwelveMonths" xlink:label="sigi_HeldToMaturitySecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionLessThanTwelveMonths" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_HeldToMaturitySecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionLessThanTwelveMonths" xlink:to="sigi_HeldToMaturitySecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionLessThanTwelveMonths_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_HeldToMaturitySecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionLessThanTwelveMonths_lbl" xml:lang="en-US">This item represents the unrecognized holding gains/losses of a held-to-maturity security that has been in a continuous unrealized/unrecognized loss position for less than twelve months. The unrecognized holding gains/losses represent the market value fluctuations from the later of: (i) the date a security is designated as held-to-maturity; or (ii) the date that an other-than-temporary- impairment charge is recognized on a held-to-maturity security.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_HeldToMaturitySecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionLessThanTwelveMonths_lbl" xml:lang="en-US">Held To Maturity Securities Unrecognized Gains Losses Aggregate Continuous Unrealized Loss Position Less Than Twelve Months</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_HeldToMaturitySecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionLessThanTwelveMonths_lbl" xml:lang="en-US">HTM Unrecognized Gains (Losses), Less than 12 months</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue" xlink:label="us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue" xlink:to="us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_lbl" xml:lang="en-US">Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_lbl" xml:lang="en-US">HTM Fair Value, 12 months or longer</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses" xlink:label="sigi_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses" xlink:to="sigi_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses_lbl" xml:lang="en-US">This item represents the unrealized holding gains/losses of a held-to-maturity security that has been in a continuous unrealized/unrecognized loss position for twelve months or longer. The unrealized holding gains/losses represent the remaining unrealized gain/loss amounts on securities that were transferred to a held-to-maturity designation from an available-for-sale designation as well as other-than-temporary impairment losses that are recognized in accumulated other comprehensive income.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses_lbl" xml:lang="en-US">Held To Maturity Securities Continuous Unrealized Loss Position twelve Months Or Longer Aggregate Losses</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses_lbl" xml:lang="en-US">HTM Unrealized Losses, 12 months or longer</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_HeldToMaturitySecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionTwelveMonthsOrLonger" xlink:label="sigi_HeldToMaturitySecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionTwelveMonthsOrLonger" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_HeldToMaturitySecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionTwelveMonthsOrLonger" xlink:to="sigi_HeldToMaturitySecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionTwelveMonthsOrLonger_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_HeldToMaturitySecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionTwelveMonthsOrLonger_lbl" xml:lang="en-US">This item represents the unrecognized holding gains/losses of a held-to-maturity security that has been in a continuous unrealized/unrecognized loss position for twelve months or longer. The unrecognized holding gains/losses represent the market value fluctuations from the later of: (i) the date a security is designated as held-to-maturity; or (ii) the date that an other-than-temporary- impairment charge is recognized on a held-to-maturity security.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_HeldToMaturitySecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionTwelveMonthsOrLonger_lbl" xml:lang="en-US">Held To Maturity Securities Unrecognized Gains Losses Aggregate Continuous Unrealized Loss Position Twelve Months or Longer</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_HeldToMaturitySecuritiesUnrecognizedGainsLossesAggregateContinuousUnrealizedLossPositionTwelveMonthsOrLonger_lbl" xml:lang="en-US">HTM Unrecognized Gains, 12 months or longer</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue" xlink:label="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue" xlink:to="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_lbl" xml:lang="en-US">This item represents the fair value of securities categorized as available-for-sale and held-to-maturity that have been in a continuous unrealized loss position for less than twelve months.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_lbl" xml:lang="en-US">Available For Sale and Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_lbl" xml:lang="en-US">Total AFS and HTM Fair Value, Less than 12 months</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses" xlink:label="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses" xlink:to="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses_lbl" xml:lang="en-US">This item represents the unrealized holding gains/losses of an available-for sale ("AFS") and held-to-maturity("HTM") security that has been in a continuous unrealized/unrecognized loss position for less than twelve months. The AFS unrealized holding losses represent the excess of amortized cost over fair value of securities. The HTM unrealized holding gains/losses represent the remaining unrealized gain/loss amounts on securities that were transferred to a HTM designation from an AFS designation as well as other-than-temporary impairment losses that are recognized in accumulated other comprehensive income.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses_lbl" xml:lang="en-US">Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Aggregate Losses</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses_lbl" xml:lang="en-US">Total AFS and HTM Unrealized (Losses) Gains, Less than 12 months</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses_lbl" xml:lang="en-US">AFS and HTM Unrealized Losses, Less than 12 months</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue" xlink:label="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue" xlink:to="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_lbl" xml:lang="en-US">This item represents the fair value of securities categorized as available-for-sale and held-to-maturity that have been in a continuous unrealized loss position for twelve months or longer.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_lbl" xml:lang="en-US">Available For Sale and Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_lbl" xml:lang="en-US">Total AFS and HTM Fair Value, 12 months or longer</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses" xlink:label="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses" xlink:to="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses_lbl" xml:lang="en-US">This item represents the unrealized holding gains/losses of an available-for sale ("AFS") and held-to-maturity("HTM") security that has been in a continuous unrealized/unrecognized loss position for twelve months or longer. The AFS unrealized holding losses represent the excess of amortized cost over fair value of securities. The HTM unrealized holding gains/losses represent the remaining unrealized gain/loss amounts on securities that were transferred to a HTM designation from an AFS designation as well as other-than-temporary impairment losses that are recognized in accumulated other comprehensive income.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses_lbl" xml:lang="en-US">Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Aggregate Losses</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses_lbl" xml:lang="en-US">Total AFS and HTM Unrealized Losses, 12 months or longer</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AvailableForSaleAndHeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses_lbl" xml:lang="en-US">AFS and HTM Unrealized Losses, 12 months or longer</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_NumberOfSecuritiesInUnrealizedUnrecognizedLossPosition" xlink:label="sigi_NumberOfSecuritiesInUnrealizedUnrecognizedLossPosition" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_NumberOfSecuritiesInUnrealizedUnrecognizedLossPosition" xlink:to="sigi_NumberOfSecuritiesInUnrealizedUnrecognizedLossPosition_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_NumberOfSecuritiesInUnrealizedUnrecognizedLossPosition_lbl" xml:lang="en-US">This item contains disclosure of the number of available-for-sale and held-to-maturity securities determined to be in an unrealized/unrecognized loss position.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_NumberOfSecuritiesInUnrealizedUnrecognizedLossPosition_lbl" xml:lang="en-US">Number Of Securities In An Unrealized Unrecognized Loss Position</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_NumberOfSecuritiesInUnrealizedUnrecognizedLossPosition_lbl" xml:lang="en-US">Number of securities in an unrealized/unrecognized loss position</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_SecuritiesInUnrealizedAndUnrecognizedLossPositionFairValue" xlink:label="sigi_SecuritiesInUnrealizedAndUnrecognizedLossPositionFairValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_SecuritiesInUnrealizedAndUnrecognizedLossPositionFairValue" xlink:to="sigi_SecuritiesInUnrealizedAndUnrecognizedLossPositionFairValue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_SecuritiesInUnrealizedAndUnrecognizedLossPositionFairValue_lbl" xml:lang="en-US">This item represents the fair value of all available-for-sale and held-to-maturity securities that are in an unrealized loss position as of the end of the period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_SecuritiesInUnrealizedAndUnrecognizedLossPositionFairValue_lbl" xml:lang="en-US">Securities in Unrealized And Unrecognized Loss Position Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_SecuritiesInUnrealizedAndUnrecognizedLossPositionFairValue_lbl" xml:lang="en-US">Securities in an unrealized/unrecognized loss position fair value</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_UnrealizedUnrecognizedLossesPeriodIncreaseDecrease" xlink:label="sigi_UnrealizedUnrecognizedLossesPeriodIncreaseDecrease" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_UnrealizedUnrecognizedLossesPeriodIncreaseDecrease" xlink:to="sigi_UnrealizedUnrecognizedLossesPeriodIncreaseDecrease_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_UnrealizedUnrecognizedLossesPeriodIncreaseDecrease_lbl" xml:lang="en-US">Represents the increase or decrease in unrealized/unrecognized losses for available-for-sale and held-to-maturities securities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_UnrealizedUnrecognizedLossesPeriodIncreaseDecrease_lbl" xml:lang="en-US">Unrealized Unrecognized Losses Period Increase Decrease</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_UnrealizedUnrecognizedLossesPeriodIncreaseDecrease_lbl" xml:lang="en-US">Decrease in unrealized/unrecognized losses</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_SecuritiesInUnrealizedUnrecognizedLossPositionForMoreThanTwelveMonthsUnrealizedUnrecognizedLoss" xlink:label="sigi_SecuritiesInUnrealizedUnrecognizedLossPositionForMoreThanTwelveMonthsUnrealizedUnrecognizedLoss" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_SecuritiesInUnrealizedUnrecognizedLossPositionForMoreThanTwelveMonthsUnrealizedUnrecognizedLoss" xlink:to="sigi_SecuritiesInUnrealizedUnrecognizedLossPositionForMoreThanTwelveMonthsUnrealizedUnrecognizedLoss_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_SecuritiesInUnrealizedUnrecognizedLossPositionForMoreThanTwelveMonthsUnrealizedUnrecognizedLoss_lbl" xml:lang="en-US">Represents total unrealized and unrecognized losses of all available-for-sale and held-to-maturity securities in an unrealized and unrecognized loss position for more than 12 months as of the end of the period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_SecuritiesInUnrealizedUnrecognizedLossPositionForMoreThanTwelveMonthsUnrealizedUnrecognizedLoss_lbl" xml:lang="en-US">Securities In Unrealized Unrecognized Loss Position For More Than Twelve Months Unrealized Unrecognized Loss</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_UnrealizedUnrecognizedLossesOnSecuritiesPreviouslyImpaired" xlink:label="sigi_UnrealizedUnrecognizedLossesOnSecuritiesPreviouslyImpaired" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_UnrealizedUnrecognizedLossesOnSecuritiesPreviouslyImpaired" xlink:to="sigi_UnrealizedUnrecognizedLossesOnSecuritiesPreviouslyImpaired_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_UnrealizedUnrecognizedLossesOnSecuritiesPreviouslyImpaired_lbl" xml:lang="en-US">This item represents the unrealized/unrecognized losses on available-for-sale and held-to-maturity securities that were in a loss position for more than twelve months as of the end of the reporting period and which had been previously impaired but the current discounted cash flow analysis did not indicate further impairment.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_UnrealizedUnrecognizedLossesOnSecuritiesPreviouslyImpaired_lbl" xml:lang="en-US">Unrealized Unrecognized Losses On Securities Previously Impaired</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_UnrealizedUnrecognizedLossesOnSecuritiesPreviouslyImpaired_lbl" xml:lang="en-US">Unrealized unrecognized losses on securities previously impaired</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_UnrealizedUnrecognizedLossesOnSecuritiesPreviouslyImpairedNumberOfSecurities" xlink:label="sigi_UnrealizedUnrecognizedLossesOnSecuritiesPreviouslyImpairedNumberOfSecurities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_UnrealizedUnrecognizedLossesOnSecuritiesPreviouslyImpairedNumberOfSecurities" xlink:to="sigi_UnrealizedUnrecognizedLossesOnSecuritiesPreviouslyImpairedNumberOfSecurities_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_UnrealizedUnrecognizedLossesOnSecuritiesPreviouslyImpairedNumberOfSecurities_lbl" xml:lang="en-US">This item represents the number of available-for-sale and held-to-maturity securities that were in a loss position for more than twelve months as of the end of the reporting period and which had been previously impaired but the current discounted cash flow analysis did not indicate further impairment.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_UnrealizedUnrecognizedLossesOnSecuritiesPreviouslyImpairedNumberOfSecurities_lbl" xml:lang="en-US">Unrealized Unrecognized Losses On Securities Previously Impaired Number Of Securities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_UnrealizedUnrecognizedLossesOnSecuritiesPreviouslyImpairedNumberOfSecurities_lbl" xml:lang="en-US">Unrealized unrecognized losses on securities previously impaired number of securities</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionTable" xlink:label="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionTable" xlink:to="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionTable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionTable_lbl" xml:lang="en-US">Disclosure showing the number of held-to-maturity and available-for-sale securities in an unrealized/unrecognized loss position by percentage of market value compared to book value and the related unrealized/unrecognized loss amount.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionTable_lbl" xml:lang="en-US">Schedule Of The Number Of Securities In An Unrealized Unrecognized Loss Position [Table]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionAxis" xlink:label="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionAxis" xlink:to="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionAxis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionAxis_lbl" xml:lang="en-US">Disclosure showing the number of held-to-maturity and available-for-sale securities in an unrealized/unrecognized loss position by percentage of market value compared to book value and the related unrealized/unrecognized loss amount.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionAxis_lbl" xml:lang="en-US">Schedule Of The Number Of Securities In An Unrealized Unrecognized Loss Position [Axis]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionDomain" xlink:label="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionDomain" xlink:to="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionDomain_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionDomain_lbl" xml:lang="en-US">Disclosure showing the number of held-to-maturity and available-for-sale securities in an unrealized/unrecognized loss position by percentage of market value compared to book value and the related unrealized/unrecognized loss amount.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfNumberOfSecuritiesInUnrealizedUnrecognizedLossPositionDomain_lbl" xml:lang="en-US">Schedule Of The Number of Securities In An Unrealized Unrecognized Loss Position [Domain]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_EightyPercentToNinetyNinePercentMember" xlink:label="sigi_EightyPercentToNinetyNinePercentMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_EightyPercentToNinetyNinePercentMember" xlink:to="sigi_EightyPercentToNinetyNinePercentMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_EightyPercentToNinetyNinePercentMember_lbl" xml:lang="en-US">The range of 80% - 99% which represents the percentage of market value compared to book value.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_EightyPercentToNinetyNinePercentMember_lbl" xml:lang="en-US">Eighty Percent to Ninety-Nine Percent [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_SixtyPercentToSeventyNinePercentMember" xlink:label="sigi_SixtyPercentToSeventyNinePercentMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_SixtyPercentToSeventyNinePercentMember" xlink:to="sigi_SixtyPercentToSeventyNinePercentMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_SixtyPercentToSeventyNinePercentMember_lbl" xml:lang="en-US">The range of 60% - 79% which represents the percentage of market value compared to book value.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_SixtyPercentToSeventyNinePercentMember_lbl" xml:lang="en-US">Sixty Percent to Seventy-Nine Percent [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_FortyPercentToFiftyNinePercentMember" xlink:label="sigi_FortyPercentToFiftyNinePercentMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FortyPercentToFiftyNinePercentMember" xlink:to="sigi_FortyPercentToFiftyNinePercentMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_FortyPercentToFiftyNinePercentMember_lbl" xml:lang="en-US">The range of 40% - 59% which represents the percentage of market value compared to book value.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_FortyPercentToFiftyNinePercentMember_lbl" xml:lang="en-US">Forty Percent to Fifty-Nine Percent [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_TwentyPercentToThirtyNinePercentMember" xlink:label="sigi_TwentyPercentToThirtyNinePercentMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_TwentyPercentToThirtyNinePercentMember" xlink:to="sigi_TwentyPercentToThirtyNinePercentMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_TwentyPercentToThirtyNinePercentMember_lbl" xml:lang="en-US">The range of 20% - 39% which represents the percentage of market value compared to book value.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_TwentyPercentToThirtyNinePercentMember_lbl" xml:lang="en-US">Twenty Percent to Thirty-Nine Percent [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ZeroPercentToNineteenPercentMember" xlink:label="sigi_ZeroPercentToNineteenPercentMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ZeroPercentToNineteenPercentMember" xlink:to="sigi_ZeroPercentToNineteenPercentMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ZeroPercentToNineteenPercentMember_lbl" xml:lang="en-US">The range of 0% - 19% which represents the percentage of market value compared to book value.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ZeroPercentToNineteenPercentMember_lbl" xml:lang="en-US">Zero Percent to Nineteen Percent [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_UnrealizedUnrecognizedLoss" xlink:label="sigi_UnrealizedUnrecognizedLoss" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_UnrealizedUnrecognizedLoss" xlink:to="sigi_UnrealizedUnrecognizedLoss_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_UnrealizedUnrecognizedLoss_lbl" xml:lang="en-US">This item represents the sum of (i) the excess of amortized cost over fair value for available-for-sale securities that are in a loss position and (ii) the market fluctuations on held-to-maturity securities from the later of (a) the date a security is designated as held-to-maturity; or (b) the date that an other-than-temporary impairment charge is recognized on a held-to-maturity security for securities that are in an unrecognized loss position.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_UnrealizedUnrecognizedLoss_lbl" xml:lang="en-US">Unrealized Unrecognized Loss</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_HeldToMaturityDebtSecuritiesMaturitiesDueWithinOneYearNetCarryingAmount" xlink:label="sigi_HeldToMaturityDebtSecuritiesMaturitiesDueWithinOneYearNetCarryingAmount" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_HeldToMaturityDebtSecuritiesMaturitiesDueWithinOneYearNetCarryingAmount_lbl" xml:lang="en-US">This item represents investments in debt securities which are categorized as held-to-maturity which are expected to mature within one year from the balance sheet date; such investments are measured at carrying value, which represents amortized cost adjusted for net unrealized gains (losses) resulting from: (i) an other-than-temporary impairment; or (ii) a previous available-for-sale designation. The held-to-maturity category is for those securities that the Entity has the positive intent and ability to hold until maturity.</label>
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    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_EnergyPowerGenerationMember" xlink:label="sigi_EnergyPowerGenerationMember" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_RealEstateStrategyMember_lbl" xml:lang="en-US">This strategy invests opportunistically in real estate in North America, Europe, and Asia via direct property ownership, joint ventures, mortgages, and investments in equity and debt instruments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_RealEstateStrategyMember_lbl" xml:lang="en-US">Real Estate Strategy [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_MezzanineFinancingMember" xlink:label="sigi_MezzanineFinancingMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_MezzanineFinancingMember" xlink:to="sigi_MezzanineFinancingMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_MezzanineFinancingMember_lbl" xml:lang="en-US">This strategy provides privately negotiated fixed income securities, generally with an equity component, to leveraged buyout ("LBO") firms and private and publicly traded large, mid and small-cap companies to finance LBOs, recapitalizations, and acquisitions.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_MezzanineFinancingMember_lbl" xml:lang="en-US">Mezzanine Financing [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_RemainingCommitment" xlink:label="sigi_RemainingCommitment" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_RemainingCommitment" xlink:to="sigi_RemainingCommitment_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_RemainingCommitment_lbl" xml:lang="en-US">This item represents contractual obligations to invest additional amounts on alternative investments.  These additional investments may or may not be required.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_RemainingCommitment_lbl" xml:lang="en-US">Remaining Commitment</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_IncreaseDecreaseInOtherInvestments" xlink:label="sigi_IncreaseDecreaseInOtherInvestments" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_IncreaseDecreaseInOtherInvestments" xlink:to="sigi_IncreaseDecreaseInOtherInvestments_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_IncreaseDecreaseInOtherInvestments_lbl" xml:lang="en-US">This item represents the change in the carrying value of other investments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_IncreaseDecreaseInOtherInvestments_lbl" xml:lang="en-US">Increase Decrease In Other Investments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_IncreaseDecreaseInOtherInvestments_lbl" xml:lang="en-US">Decrease in other investments</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_DistributionsFromAlternativeInvestments" xlink:label="sigi_DistributionsFromAlternativeInvestments" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_DistributionsFromAlternativeInvestments" xlink:to="sigi_DistributionsFromAlternativeInvestments_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_DistributionsFromAlternativeInvestments_lbl" xml:lang="en-US">This item represents disclosure of the amount of distributions received from alternative investments. These investments are accounted for under the equity method of accounting.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_DistributionsFromAlternativeInvestments_lbl" xml:lang="en-US">Distributions From Alternative Investments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_DistributionsFromAlternativeInvestments_lbl" xml:lang="en-US">Distributions from alternative investments</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_FundingsUnderExistingCommitmentsGross" xlink:label="sigi_FundingsUnderExistingCommitmentsGross" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FundingsUnderExistingCommitmentsGross" xlink:to="sigi_FundingsUnderExistingCommitmentsGross_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_FundingsUnderExistingCommitmentsGross_lbl" xml:lang="en-US">This item represents the amount of funding that the company has provided for the alternative investments portfolio for the period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_FundingsUnderExistingCommitmentsGross_lbl" xml:lang="en-US">Fundings Under Existing Commitments Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_FundingsUnderExistingCommitmentsGross_lbl" xml:lang="en-US">Contributions under existing commitments</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AggregatedSummarizedFinancialInformationForPartnershipsInOurAlternativeInvestmentPortfolioTable" xlink:label="sigi_AggregatedSummarizedFinancialInformationForPartnershipsInOurAlternativeInvestmentPortfolioTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AggregatedSummarizedFinancialInformationForPartnershipsInOurAlternativeInvestmentPortfolioTable" xlink:to="sigi_AggregatedSummarizedFinancialInformationForPartnershipsInOurAlternativeInvestmentPortfolioTable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AggregatedSummarizedFinancialInformationForPartnershipsInOurAlternativeInvestmentPortfolioTable_lbl" xml:lang="en-US">Schedule of aggregate summarized income statement information for alternative investments accounted for by the equity method.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AggregatedSummarizedFinancialInformationForPartnershipsInOurAlternativeInvestmentPortfolioTable_lbl" xml:lang="en-US">Aggregated Summarized Financial Information For Partnerships In Our Alternative Investment Portfolio [Table]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_NetInvestmentIncomeOfEquityMethodInvestees" xlink:label="sigi_NetInvestmentIncomeOfEquityMethodInvestees" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_NetInvestmentIncomeOfEquityMethodInvestees" xlink:to="sigi_NetInvestmentIncomeOfEquityMethodInvestees_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_NetInvestmentIncomeOfEquityMethodInvestees_lbl" xml:lang="en-US">This item represents the disclosure of summarized financial information, specifically aggregate net investment income, for unconsolidated subsidiaries and 50 percent-or-less owned entities accounted for under the equity method of accounting.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_NetInvestmentIncomeOfEquityMethodInvestees_lbl" xml:lang="en-US">Net Investment Income of Equity Method Investees</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_NetInvestmentIncomeOfEquityMethodInvestees_lbl" xml:lang="en-US">Net investment income</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_RealizedGainsLossesOfEquityMethodInvestees" xlink:label="sigi_RealizedGainsLossesOfEquityMethodInvestees" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_RealizedGainsLossesOfEquityMethodInvestees" xlink:to="sigi_RealizedGainsLossesOfEquityMethodInvestees_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_RealizedGainsLossesOfEquityMethodInvestees_lbl" xml:lang="en-US">This item represents the disclosure of summarized financial information, specifically aggregate realized gains (losses), for unconsolidated subsidiaries and 50 percent-or-less owned entities accounted for under the equity method of accounting.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_RealizedGainsLossesOfEquityMethodInvestees_lbl" xml:lang="en-US">Realized gains losses of equity method investees</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_RealizedGainsLossesOfEquityMethodInvestees_lbl" xml:lang="en-US">Realized gains (losses)</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_NetChangeInUnrealizedAppreciationDepreciationOfEquityMethodInvestees" xlink:label="sigi_NetChangeInUnrealizedAppreciationDepreciationOfEquityMethodInvestees" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_NetChangeInUnrealizedAppreciationDepreciationOfEquityMethodInvestees" xlink:to="sigi_NetChangeInUnrealizedAppreciationDepreciationOfEquityMethodInvestees_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_NetChangeInUnrealizedAppreciationDepreciationOfEquityMethodInvestees_lbl" xml:lang="en-US">This item represents the disclosure of summarized financial information, specifically the aggregate change in unrealized appreciation (depreciation), for unconsolidated subsidiaries and 50 percent-or-less owned entities accounted for under the equity method of accounting.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_NetChangeInUnrealizedAppreciationDepreciationOfEquityMethodInvestees_lbl" xml:lang="en-US">Net change in unrealized appreciation depreciation of equity method investees</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_NetChangeInUnrealizedAppreciationDepreciationOfEquityMethodInvestees_lbl" xml:lang="en-US">Net change in unrealized appreciation</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss" xlink:label="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss" xlink:to="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss_lbl" xml:lang="en-US">Equity Method Investment, Summarized Financial Information, Net Income (Loss)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss_lbl" xml:lang="en-US">Net income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss_lbl" xml:lang="en-US">Net income</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_NumberOfFixedMaturitySecuritiesPledgedAsCollateralForBorrowingsWithFederalHomeLoanBankOfIndianapolis" xlink:label="sigi_NumberOfFixedMaturitySecuritiesPledgedAsCollateralForBorrowingsWithFederalHomeLoanBankOfIndianapolis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_NumberOfFixedMaturitySecuritiesPledgedAsCollateralForBorrowingsWithFederalHomeLoanBankOfIndianapolis" xlink:to="sigi_NumberOfFixedMaturitySecuritiesPledgedAsCollateralForBorrowingsWithFederalHomeLoanBankOfIndianapolis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_NumberOfFixedMaturitySecuritiesPledgedAsCollateralForBorrowingsWithFederalHomeLoanBankOfIndianapolis_lbl" xml:lang="en-US">This item contains disclosure of the number of fixed maturity securities that are pledged as collateral for outstanding borrowings with the Federal Home Loan Bank of Indianapolis.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_NumberOfFixedMaturitySecuritiesPledgedAsCollateralForBorrowingsWithFederalHomeLoanBankOfIndianapolis_lbl" xml:lang="en-US">Number Of Fixed Maturity Securities Pledged As Collateral For Borrowings With Federal Home Loan Bank Of Indianapolis</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_NumberOfFixedMaturitySecuritiesPledgedAsCollateralForBorrowingsWithFederalHomeLoanBankOfIndianapolis_lbl" xml:lang="en-US">Number of fixed maturity securities pledged as collateral for borrowings with the Federal Home Loan Bank of Indianapolis</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged" xlink:label="us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged" xlink:to="us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged_lbl" xml:lang="en-US">Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged_lbl" xml:lang="en-US">Fixed maturity security pledged at carrying value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged_lbl" xml:lang="en-US">Fixed maturity security pledged at carrying value</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesLongTerm" xlink:label="us-gaap_FederalHomeLoanBankAdvancesLongTerm" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FederalHomeLoanBankAdvancesLongTerm" xlink:to="us-gaap_FederalHomeLoanBankAdvancesLongTerm_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FederalHomeLoanBankAdvancesLongTerm_lbl" xml:lang="en-US">Long-term Federal Home Loan Bank Advances</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FederalHomeLoanBankAdvancesLongTerm_lbl" xml:lang="en-US">Outstanding borrowing with the Federal Home Loan Bank of Indianapolis</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_FederalHomeLoanBankAdvancesLongTerm_lbl" xml:lang="en-US">Long-term Federal Home Loan Bank Advances, Total</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ComponentsOfNetInvestmentIncomeEarnedTable" xlink:label="sigi_ComponentsOfNetInvestmentIncomeEarnedTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ComponentsOfNetInvestmentIncomeEarnedTable" xlink:to="sigi_ComponentsOfNetInvestmentIncomeEarnedTable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ComponentsOfNetInvestmentIncomeEarnedTable_lbl" xml:lang="en-US">Disclosure of investment income earned from securities and other investments including dividends on equity securities, interest on debt securities and short-term investments, and gains (losses) on other investments. This item does not include realized gains (losses) or unrealized gains (losses) on holdings of available-for-sale or held-to-maturity securities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ComponentsOfNetInvestmentIncomeEarnedTable_lbl" xml:lang="en-US">Components Of Net Investment Income Earned [Table]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_IncreaseDecreaseInNetInvestmentIncomeBeforeTax" xlink:label="sigi_IncreaseDecreaseInNetInvestmentIncomeBeforeTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_IncreaseDecreaseInNetInvestmentIncomeBeforeTax" xlink:to="sigi_IncreaseDecreaseInNetInvestmentIncomeBeforeTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_IncreaseDecreaseInNetInvestmentIncomeBeforeTax_lbl" xml:lang="en-US">This item represents the increase (decrease) in income earned from investments in securities and other investments including dividends, interest, and returns on other investments in the current reporting period as compared to the comparable prior year period. This item does not include realized gains (losses).</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_IncreaseDecreaseInNetInvestmentIncomeBeforeTax_lbl" xml:lang="en-US">Increase Decrease In Net Investment Income Before Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_IncreaseDecreaseInNetInvestmentIncomeBeforeTax_lbl" xml:lang="en-US">Increase In Net Investment Income Before Tax</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_NetInvestmentIncomeOnOtherInvestmentsByStrategyTable" xlink:label="sigi_NetInvestmentIncomeOnOtherInvestmentsByStrategyTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_NetInvestmentIncomeOnOtherInvestmentsByStrategyTable" xlink:to="sigi_NetInvestmentIncomeOnOtherInvestmentsByStrategyTable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_NetInvestmentIncomeOnOtherInvestmentsByStrategyTable_lbl" xml:lang="en-US">Summarization of net investment income earned from other investments, which primarily consist of investments in limited partnerships.  This item does not include realized gains or losses.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_NetInvestmentIncomeOnOtherInvestmentsByStrategyTable_lbl" xml:lang="en-US">Net Investment Income On Other Investments By Strategy [Table]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfOttiByAssetTypeTable" xlink:label="sigi_ScheduleOfOttiByAssetTypeTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfOttiByAssetTypeTable" xlink:to="sigi_ScheduleOfOttiByAssetTypeTable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfOttiByAssetTypeTable_lbl" xml:lang="en-US">Schedule of other-than-temporary impairments recognized in the statement of income and other comprehensive income by asset type.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfOttiByAssetTypeTable_lbl" xml:lang="en-US">Schedule of OTTI By Asset Type [Table]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/invest-2009-01-31.xsd#invest_InvestmentAxis" xlink:label="invest_InvestmentAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="invest_InvestmentAxis" xlink:to="invest_InvestmentAxis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="invest_InvestmentAxis_lbl" xml:lang="en-US">Investment [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/invest-2009-01-31.xsd#invest_InvestmentDomain" xlink:label="invest_InvestmentDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="invest_InvestmentDomain" xlink:to="invest_InvestmentDomain_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="invest_InvestmentDomain_lbl" xml:lang="en-US">Investment [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EquitySecuritiesMember" xlink:label="us-gaap_EquitySecuritiesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquitySecuritiesMember" xlink:to="us-gaap_EquitySecuritiesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EquitySecuritiesMember_lbl" xml:lang="en-US">Equity Securities [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount" xlink:label="us-gaap_MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount" xlink:to="us-gaap_MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount_lbl" xml:lang="en-US">Marketable Securities Realized Gain Loss Other Than Temporary Impairments Amount</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount_lbl" xml:lang="en-US">Total OTTI charges recognized in earnings</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount_lbl" xml:lang="en-US">OTTI Losses Recognized in Earnings</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_NumberOfImpairmentsDueToIntentToSell_lbl" xml:lang="en-US">This item represents the number of investments which made up the impairment losses for debt and equity securities recognized in earnings for the reporting periods due to the Company's intent to sell.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_NumberOfImpairmentsDueToIntentToSell_lbl" xml:lang="en-US">Number Of Impairments Due To Intent To Sell</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_NumberOfImpairmentsDueToIntentToSell_lbl" xml:lang="en-US">Number of Impairments due to intent to sell</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AverageUnrealizedUnrecognizedLossAsComparedToAmortizedCostPercentage" xlink:label="sigi_AverageUnrealizedUnrecognizedLossAsComparedToAmortizedCostPercentage" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AverageUnrealizedUnrecognizedLossAsComparedToAmortizedCostPercentage" xlink:to="sigi_AverageUnrealizedUnrecognizedLossAsComparedToAmortizedCostPercentage_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AverageUnrealizedUnrecognizedLossAsComparedToAmortizedCostPercentage_lbl" xml:lang="en-US">The average unrealized/unrecognized loss in comparison to the securities' amortized cost.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AverageUnrealizedUnrecognizedLossAsComparedToAmortizedCostPercentage_lbl" xml:lang="en-US">Average Unrealized Unrecognized Loss As Compared To Amortized Cost Percentage</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AverageUnrealizedUnrecognizedLossAsComparedToAmortizedCostPercentage_lbl" xml:lang="en-US">Average unrealized unrecognized loss as compared to amortized cost percentage</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_NumberOfImpairmentsDueToSignificantDeclineInSharePrice" xlink:label="sigi_NumberOfImpairmentsDueToSignificantDeclineInSharePrice" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_NumberOfImpairmentsDueToSignificantDeclineInSharePrice_lbl" xml:lang="en-US">This item represents the number of investments which made up the impairment losses for debt and equity securities recognized in earnings for the reporting periods due to a significant decline in share price.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_NumberOfImpairmentsDueToSignificantDeclineInSharePrice_lbl" xml:lang="en-US">Number Of Impairments Due To Significant Decline In Share Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_NumberOfImpairmentsDueToSignificantDeclineInSharePrice_lbl" xml:lang="en-US">Number of impairments due to significant decline in share price</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_CreditLossImpairmentsOnFixedMaturitySecuritiesForWhichPortionOfOttiChargeWasRecognizedInOci" xlink:label="sigi_CreditLossImpairmentsOnFixedMaturitySecuritiesForWhichPortionOfOttiChargeWasRecognizedInOci" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_CreditLossImpairmentsOnFixedMaturitySecuritiesForWhichPortionOfOttiChargeWasRecognizedInOci" xlink:to="sigi_CreditLossImpairmentsOnFixedMaturitySecuritiesForWhichPortionOfOttiChargeWasRecognizedInOci_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_CreditLossImpairmentsOnFixedMaturitySecuritiesForWhichPortionOfOttiChargeWasRecognizedInOci_lbl" xml:lang="en-US">The cumulative amount of credit loss impairments on fixed maturity securities for which a portion of the other-than-temporary impairment charge was recognized in other comprehensive income.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_CreditLossImpairmentsOnFixedMaturitySecuritiesForWhichPortionOfOttiChargeWasRecognizedInOci_lbl" xml:lang="en-US">Credit Loss Impairments On Fixed Maturity Securities For Which Portion Of OTTI Charge Was Recognized In OCI</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="sigi_CreditLossImpairmentsOnFixedMaturitySecuritiesForWhichPortionOfOttiChargeWasRecognizedInOci_lbl" xml:lang="en-US">Balance, end of period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="sigi_CreditLossImpairmentsOnFixedMaturitySecuritiesForWhichPortionOfOttiChargeWasRecognizedInOci_lbl" xml:lang="en-US">Balance, beginning of period</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AdditionForAmountRelatedToCreditLossForWhichOttiWasNotPreviouslyRecognized" xlink:label="sigi_AdditionForAmountRelatedToCreditLossForWhichOttiWasNotPreviouslyRecognized" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AdditionForAmountRelatedToCreditLossForWhichOttiWasNotPreviouslyRecognized" xlink:to="sigi_AdditionForAmountRelatedToCreditLossForWhichOttiWasNotPreviouslyRecognized_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AdditionForAmountRelatedToCreditLossForWhichOttiWasNotPreviouslyRecognized_lbl" xml:lang="en-US">This item represents credit losses during the period on securities for which an other-than-temporary impairment was not previously recognized in other comprehensive income.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AdditionForAmountRelatedToCreditLossForWhichOttiWasNotPreviouslyRecognized_lbl" xml:lang="en-US">Addition For Amount Related To Credit Loss For Which OTTI Was Not Previously Recognized</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AdditionForAmountRelatedToCreditLossForWhichOttiWasNotPreviouslyRecognized_lbl" xml:lang="en-US">Addition for the amount related to credit loss for which an OTTI was not previously recognized</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ReductionsForSecuritiesSoldDuringPeriod" xlink:label="sigi_ReductionsForSecuritiesSoldDuringPeriod" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ReductionsForSecuritiesSoldDuringPeriod" xlink:to="sigi_ReductionsForSecuritiesSoldDuringPeriod_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ReductionsForSecuritiesSoldDuringPeriod_lbl" xml:lang="en-US">This item represents a decrease to the cumulative amount of credit losses recognized in earnings on fixed maturity securities for which a portion of the other-than-temporary impairment charge was recognized in other comprehensive income due to the sale of the securities during the reporting period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ReductionsForSecuritiesSoldDuringPeriod_lbl" xml:lang="en-US">Reductions For Securities Sold During Period</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_ReductionsForSecuritiesSoldDuringPeriod_lbl" xml:lang="en-US">Reductions for securities sold during the period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ReductionsForSecuritiesSoldDuringPeriod_lbl" xml:lang="en-US">Reductions for securities sold during the period</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ReductionsForSecuritiesForWhichAmountPreviouslyRecognizedOciWasRecognizedInEarningsBecauseOfIntentionOrPotentialRequirementToSellBeforeRecoveryOfAmortizedCost" xlink:label="sigi_ReductionsForSecuritiesForWhichAmountPreviouslyRecognizedOciWasRecognizedInEarningsBecauseOfIntentionOrPotentialRequirementToSellBeforeRecoveryOfAmortizedCost" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ReductionsForSecuritiesForWhichAmountPreviouslyRecognizedOciWasRecognizedInEarningsBecauseOfIntentionOrPotentialRequirementToSellBeforeRecoveryOfAmortizedCost" xlink:to="sigi_ReductionsForSecuritiesForWhichAmountPreviouslyRecognizedOciWasRecognizedInEarningsBecauseOfIntentionOrPotentialRequirementToSellBeforeRecoveryOfAmortizedCost_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ReductionsForSecuritiesForWhichAmountPreviouslyRecognizedOciWasRecognizedInEarningsBecauseOfIntentionOrPotentialRequirementToSellBeforeRecoveryOfAmortizedCost_lbl" xml:lang="en-US">This item represents the removal of a credit loss from the table due to the fact that the other-than-temporary impairment charge that was previously recognized in other comprehensive income was recognized in earnings during the period due to the company's intention or potential requirement to sell before recovery of amortized cost.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ReductionsForSecuritiesForWhichAmountPreviouslyRecognizedOciWasRecognizedInEarningsBecauseOfIntentionOrPotentialRequirementToSellBeforeRecoveryOfAmortizedCost_lbl" xml:lang="en-US">Reductions For Securities For Which Amount Previously Recognized OCI Was Recognized In Earnings Because Of Intention Or Potential Requirement To Sell Before Recovery Of Amortized Cost</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ReductionsForSecuritiesForWhichAmountPreviouslyRecognizedOciWasRecognizedInEarningsBecauseOfIntentionOrPotentialRequirementToSellBeforeRecoveryOfAmortizedCost_lbl" xml:lang="en-US">Reductions for securities for which the amount previously recognized in OCI was recognized in earnings because of intention or potential requirement to sell before recovery of amortized cost</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ReductionsForSecuritiesForWhichEntireAmountPreviouslyRecognizedInOciWasRecognizedInEarningsDueToDecreaseInCashFlowsExpected" xlink:label="sigi_ReductionsForSecuritiesForWhichEntireAmountPreviouslyRecognizedInOciWasRecognizedInEarningsDueToDecreaseInCashFlowsExpected" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ReductionsForSecuritiesForWhichEntireAmountPreviouslyRecognizedInOciWasRecognizedInEarningsDueToDecreaseInCashFlowsExpected" xlink:to="sigi_ReductionsForSecuritiesForWhichEntireAmountPreviouslyRecognizedInOciWasRecognizedInEarningsDueToDecreaseInCashFlowsExpected_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ReductionsForSecuritiesForWhichEntireAmountPreviouslyRecognizedInOciWasRecognizedInEarningsDueToDecreaseInCashFlowsExpected_lbl" xml:lang="en-US">This item represents the removal of a credit loss from the table due to the fact that the other-than-temporary charge that was previously recognized in other comprehensive income was recognized in earnings during the period due to a decrease in the securities expected cash flows.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ReductionsForSecuritiesForWhichEntireAmountPreviouslyRecognizedInOciWasRecognizedInEarningsDueToDecreaseInCashFlowsExpected_lbl" xml:lang="en-US">Reductions For Securities For Which Entire Amount Previously Recognized In OCI Was Recognized In Earnings Due To Decrease In Cash Flows Expected</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_ReductionsForSecuritiesForWhichEntireAmountPreviouslyRecognizedInOciWasRecognizedInEarningsDueToDecreaseInCashFlowsExpected_lbl" xml:lang="en-US">Reductions for securities for which the entire amount previously recognized in OCI was recognized in earnings due to a decrease in cash flows expected</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ReductionsForSecuritiesForWhichEntireAmountPreviouslyRecognizedInOciWasRecognizedInEarningsDueToDecreaseInCashFlowsExpected_lbl" xml:lang="en-US">Reductions for securities for which the entire amount previously recognized in OCI was recognized in earnings due to a decrease in cash flows expected</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AdditionalIncreasesToAmountRelatedToCreditLossForWhichOttiWasPreviouslyRecognized" xlink:label="sigi_AdditionalIncreasesToAmountRelatedToCreditLossForWhichOttiWasPreviouslyRecognized" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AdditionalIncreasesToAmountRelatedToCreditLossForWhichOttiWasPreviouslyRecognized_lbl" xml:lang="en-US">This item represents additional credit losses recognized in earnings on securities for which an other-than-temporary impairment was previously recognized in other comprehensive income.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AdditionalIncreasesToAmountRelatedToCreditLossForWhichOttiWasPreviouslyRecognized_lbl" xml:lang="en-US">Additional Increases To Amount Related To Credit Loss For Which OTTI Was Previously Recognized</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AdditionalIncreasesToAmountRelatedToCreditLossForWhichOttiWasPreviouslyRecognized_lbl" xml:lang="en-US">Additional increases to the amount related to credit loss for which an OTTI was previously recognized</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AccretionOfCreditLossImpairmentsPreviouslyRecognizedDueToIncreaseInCashFlowsExpectedToBeCollected" xlink:label="sigi_AccretionOfCreditLossImpairmentsPreviouslyRecognizedDueToIncreaseInCashFlowsExpectedToBeCollected" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AccretionOfCreditLossImpairmentsPreviouslyRecognizedDueToIncreaseInCashFlowsExpectedToBeCollected" xlink:to="sigi_AccretionOfCreditLossImpairmentsPreviouslyRecognizedDueToIncreaseInCashFlowsExpectedToBeCollected_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AccretionOfCreditLossImpairmentsPreviouslyRecognizedDueToIncreaseInCashFlowsExpectedToBeCollected_lbl" xml:lang="en-US">This item represents accretion of credit loss impairments previously recognized due to an increase in cash flow expected to be collected on securities for which an other-than-temporary impairment charge was recognized in other comprehensive income.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AccretionOfCreditLossImpairmentsPreviouslyRecognizedDueToIncreaseInCashFlowsExpectedToBeCollected_lbl" xml:lang="en-US">Accretion Of Credit Loss Impairments Previously Recognized Due To Increase In Cash Flows Expected To Be Collected</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AccretionOfCreditLossImpairmentsPreviouslyRecognizedDueToIncreaseInCashFlowsExpectedToBeCollected_lbl" xml:lang="en-US">Accretion of credit loss impairments previously recognized due to an increase in cash flows expected to be collected</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_HeldToMaturitySecuritiesRealizedGain" xlink:label="sigi_HeldToMaturitySecuritiesRealizedGain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_HeldToMaturitySecuritiesRealizedGain" xlink:to="sigi_HeldToMaturitySecuritiesRealizedGain_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_HeldToMaturitySecuritiesRealizedGain_lbl" xml:lang="en-US">This item represents the gain realized on the disposal of held-to-maturity securities during the period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_HeldToMaturitySecuritiesRealizedGain_lbl" xml:lang="en-US">Held To Maturity Securities Realized Gain</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_HeldToMaturitySecuritiesRealizedGain_lbl" xml:lang="en-US">HTM fixed maturity securities Gains</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_HeldToMaturitySecuritiesSoldSecurityRealizedLoss" xlink:label="sigi_HeldToMaturitySecuritiesSoldSecurityRealizedLoss" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_HeldToMaturitySecuritiesSoldSecurityRealizedLoss" xlink:to="sigi_HeldToMaturitySecuritiesSoldSecurityRealizedLoss_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_HeldToMaturitySecuritiesSoldSecurityRealizedLoss_lbl" xml:lang="en-US">This item represents the loss realized on the disposal of held-to-maturity securities during the period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_HeldToMaturitySecuritiesSoldSecurityRealizedLoss_lbl" xml:lang="en-US">Held To Maturity Securities Sold Security Realized Loss</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_HeldToMaturitySecuritiesSoldSecurityRealizedLoss_lbl" xml:lang="en-US">HTM fixed maturity securities Losses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_HeldToMaturitySecuritiesSoldSecurityRealizedLoss_lbl" xml:lang="en-US">HTM fixed maturity securities Losses</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AvailableForSaleFixedMaturitySecuritiesGrossRealizedGains" xlink:label="sigi_AvailableForSaleFixedMaturitySecuritiesGrossRealizedGains" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AvailableForSaleFixedMaturitySecuritiesGrossRealizedGains" xlink:to="sigi_AvailableForSaleFixedMaturitySecuritiesGrossRealizedGains_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AvailableForSaleFixedMaturitySecuritiesGrossRealizedGains_lbl" xml:lang="en-US">This item represents the gross gain realized on the sales and calls of fixed maturity securities categorized neither as held-to-maturity nor trading securities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AvailableForSaleFixedMaturitySecuritiesGrossRealizedGains_lbl" xml:lang="en-US">Available For Sale Fixed Maturity Securities Gross Realized Gains</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AvailableForSaleFixedMaturitySecuritiesGrossRealizedGains_lbl" xml:lang="en-US">AFS fixed maturity securities Gains</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AvailableForSaleFixedMaturitySecuritiesGrossRealizedLosses" xlink:label="sigi_AvailableForSaleFixedMaturitySecuritiesGrossRealizedLosses" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AvailableForSaleFixedMaturitySecuritiesGrossRealizedLosses" xlink:to="sigi_AvailableForSaleFixedMaturitySecuritiesGrossRealizedLosses_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AvailableForSaleFixedMaturitySecuritiesGrossRealizedLosses_lbl" xml:lang="en-US">This item represents the gross loss realized on the sales and calls of fixed maturity securities categorized neither as held-to-maturity nor trading securities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AvailableForSaleFixedMaturitySecuritiesGrossRealizedLosses_lbl" xml:lang="en-US">Available For Sale Fixed Maturity Securities Gross Realized Losses</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_AvailableForSaleFixedMaturitySecuritiesGrossRealizedLosses_lbl" xml:lang="en-US">AFS fixed maturity securities Losses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AvailableForSaleFixedMaturitySecuritiesGrossRealizedLosses_lbl" xml:lang="en-US">AFS fixed maturity securities Losses</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AvailableForSaleSecuritiesGrossRealizedGains" xlink:label="us-gaap_AvailableForSaleSecuritiesGrossRealizedGains" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AvailableForSaleSecuritiesGrossRealizedGains_lbl" xml:lang="en-US">Available-for-sale Securities, Gross Realized Gains</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AvailableForSaleSecuritiesGrossRealizedGains_lbl" xml:lang="en-US">AFS equity securities Gains</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AvailableForSaleEquitySecuritiesGrossRealizedLosses" xlink:label="sigi_AvailableForSaleEquitySecuritiesGrossRealizedLosses" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AvailableForSaleEquitySecuritiesGrossRealizedLosses" xlink:to="sigi_AvailableForSaleEquitySecuritiesGrossRealizedLosses_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AvailableForSaleEquitySecuritiesGrossRealizedLosses_lbl" xml:lang="en-US">This item represents the gross loss realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AvailableForSaleEquitySecuritiesGrossRealizedLosses_lbl" xml:lang="en-US">Available For Sale Equity Securities Gross Realized Losses</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_AvailableForSaleEquitySecuritiesGrossRealizedLosses_lbl" xml:lang="en-US">AFS equity securities Losses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AvailableForSaleEquitySecuritiesGrossRealizedLosses_lbl" xml:lang="en-US">AFS equity securities Losses</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities" xlink:label="us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities_lbl" xml:lang="en-US">Proceeds From Sale Of Available For Sale Securities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities_lbl" xml:lang="en-US">Proceeds from Sale of Available-for-sale Securities, Total</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueByBalanceSheetGroupingTable" xlink:label="us-gaap_FairValueByBalanceSheetGroupingTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueByBalanceSheetGroupingTable" xlink:to="us-gaap_FairValueByBalanceSheetGroupingTable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueByBalanceSheetGroupingTable_lbl" xml:lang="en-US">Fair Value, by Balance Sheet Grouping [Table]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="us-gaap_LongtermDebtTypeAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongtermDebtTypeAxis" xlink:to="us-gaap_LongtermDebtTypeAxis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongtermDebtTypeAxis_lbl" xml:lang="en-US">Long-term Debt, Type [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="us-gaap_LongtermDebtTypeDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongtermDebtTypeDomain" xlink:to="us-gaap_LongtermDebtTypeDomain_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongtermDebtTypeDomain_lbl" xml:lang="en-US">Long-term Debt, Type [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesMember" xlink:label="us-gaap_FederalHomeLoanBankAdvancesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FederalHomeLoanBankAdvancesMember" xlink:to="us-gaap_FederalHomeLoanBankAdvancesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FederalHomeLoanBankAdvancesMember_lbl" xml:lang="en-US">Two Point Ninety Percent Borrowings from FHLBI [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ReceivableForProceedsFromDivestitureOfBusinesses" xlink:label="sigi_ReceivableForProceedsFromDivestitureOfBusinesses" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ReceivableForProceedsFromDivestitureOfBusinesses" xlink:to="sigi_ReceivableForProceedsFromDivestitureOfBusinesses_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ReceivableForProceedsFromDivestitureOfBusinesses_lbl" xml:lang="en-US">The estimated proceeds associated with the sale of a subsidiary, net of payments received.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ReceivableForProceedsFromDivestitureOfBusinesses_lbl" xml:lang="en-US">Receivable For Proceeds From Divestiture Of Businesses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ReceivableForProceedsFromDivestitureOfBusinesses_lbl" xml:lang="en-US">Receivable for proceeds related to sale of Selective HR Solutions ("Selective HR")</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="sigi_ReceivableForProceedsFromDivestitureOfBusinesses_lbl" xml:lang="en-US">Receivable for proceeds related to the sale Selective HR</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_FairValueAssetsMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="sigi_FairValueAssetsMeasuredOnRecurringAndNonrecurringBasisTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FairValueAssetsMeasuredOnRecurringAndNonrecurringBasisTable" xlink:to="sigi_FairValueAssetsMeasuredOnRecurringAndNonrecurringBasisTable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_FairValueAssetsMeasuredOnRecurringAndNonrecurringBasisTable_lbl" xml:lang="en-US">Disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring and/or nonrecurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_FairValueAssetsMeasuredOnRecurringAndNonrecurringBasisTable_lbl" xml:lang="en-US">Fair Value, Assets Measured On Recurring And Nonrecurring Basis [Table]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_FairValueByFairValueHierarchyLevelAxis" xlink:label="sigi_FairValueByFairValueHierarchyLevelAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FairValueByFairValueHierarchyLevelAxis" xlink:to="sigi_FairValueByFairValueHierarchyLevelAxis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_FairValueByFairValueHierarchyLevelAxis_lbl" xml:lang="en-US">Fair value information by level within the fair value hierarchy.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_FairValueByFairValueHierarchyLevelAxis_lbl" xml:lang="en-US">Fair Value By Fair Value Hierarchy Level [Axis]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="sigi_FairValueMeasurementsFairValueHierarchyDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="sigi_FairValueMeasurementsFairValueHierarchyDomain_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_FairValueMeasurementsFairValueHierarchyDomain_lbl" xml:lang="en-US">Provides the categories used to prioritize the inputs to valuation techniques used to measure fair value into levels. The fair value hierarchy gives the highest priority to quoted prices (unadjusted) in active markets for identical assets or liabilities (Level 1), inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly (Level 2), and the lowest priority to unobservable inputs (Level 3). Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_FairValueMeasurementsFairValueHierarchyDomain_lbl" xml:lang="en-US">Fair Value Measurements Fair Value Hierarchy [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember" xlink:label="us-gaap_EstimateOfFairValueFairValueDisclosureMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EstimateOfFairValueFairValueDisclosureMember" xlink:to="us-gaap_EstimateOfFairValueFairValueDisclosureMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EstimateOfFairValueFairValueDisclosureMember_lbl" xml:lang="en-US">Fair Value [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="us-gaap_FairValueInputsLevel1Member" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueInputsLevel1Member" xlink:to="us-gaap_FairValueInputsLevel1Member_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xml:lang="en-US">Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="us-gaap_FairValueInputsLevel2Member" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueInputsLevel2Member" xlink:to="us-gaap_FairValueInputsLevel2Member_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xml:lang="en-US">Significant Other Observable Inputs (Level 2) [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="us-gaap_FairValueInputsLevel3Member" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueInputsLevel3Member" xlink:to="us-gaap_FairValueInputsLevel3Member_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xml:lang="en-US">Significant Unobservable Inputs (Level 3) [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_FairValueByMeasurementFrequencyAxis" xlink:label="sigi_FairValueByMeasurementFrequencyAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FairValueByMeasurementFrequencyAxis" xlink:to="sigi_FairValueByMeasurementFrequencyAxis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_FairValueByMeasurementFrequencyAxis_lbl" xml:lang="en-US">Fair value information by measurement frequency.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_FairValueByMeasurementFrequencyAxis_lbl" xml:lang="en-US">Fair Value By Measurement Frequency [Axis]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_FairValueMeasurementFrequencyDomain" xlink:label="sigi_FairValueMeasurementFrequencyDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FairValueMeasurementFrequencyDomain" xlink:to="sigi_FairValueMeasurementFrequencyDomain_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_FairValueMeasurementFrequencyDomain_lbl" xml:lang="en-US">Provides the general categories used to describe the frequency with which financial assets and liabilities (as defined) are measured at fair value (on a recurring or nonrecurring basis).</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_FairValueMeasurementFrequencyDomain_lbl" xml:lang="en-US">Fair Value Measurement Frequency [Domain]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_FairValueMeasurementsRecurringMember" xlink:label="sigi_FairValueMeasurementsRecurringMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FairValueMeasurementsRecurringMember" xlink:to="sigi_FairValueMeasurementsRecurringMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_FairValueMeasurementsRecurringMember_lbl" xml:lang="en-US">This item represents a description of the frequency with which certain items are measured at fair value. Items measured at fair value on a recurring basis generally include those items for which measurement inputs are readily available and which are measured at fair value at successive reporting periods.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_FairValueMeasurementsRecurringMember_lbl" xml:lang="en-US">Fair Value Measurements Recurring [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AssetsFairValueDisclosure" xlink:label="sigi_AssetsFairValueDisclosure" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AssetsFairValueDisclosure" xlink:to="sigi_AssetsFairValueDisclosure_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AssetsFairValueDisclosure_lbl" xml:lang="en-US">This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AssetsFairValueDisclosure_lbl" xml:lang="en-US">Assets Fair Value Disclosure</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AssetsFairValueDisclosure_lbl" xml:lang="en-US">Total financial assets measured on a recurring basis</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="sigi_AssetsFairValueDisclosure_lbl" xml:lang="en-US">Total financial assets measured on a recurring basis</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputsReconciliationTable" xlink:label="sigi_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputsReconciliationTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputsReconciliationTable" xlink:to="sigi_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputsReconciliationTable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputsReconciliationTable_lbl" xml:lang="en-US">Summarization of information required and determined to be provided for purposes of reconciling beginning and ending balances of fair value measurements of assets using significant unobservable inputs (Level 3). Such reconciliation, separately presenting changes during the period, at a minimum, may include: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income, and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputsReconciliationTable_lbl" xml:lang="en-US">Fair Value Assets Measured On Recurring Basis Unobservable Inputs Reconciliation [Table]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xlink:to="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_lbl" xml:lang="en-US">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_lbl" xml:lang="en-US">Fair value, Ending balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_lbl" xml:lang="en-US">Fair value, Beginning balance</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncome" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncome" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncome" xlink:to="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncome_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncome_lbl" xml:lang="en-US">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncome_lbl" xml:lang="en-US">Total net gains (losses) for the period included in OCI</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings" xlink:to="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings_lbl" xml:lang="en-US">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings_lbl" xml:lang="en-US">Total net gains (losses) for the period included in net income</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases" xlink:label="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases" xlink:to="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases_lbl" xml:lang="en-US">Purchases that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases_lbl" xml:lang="en-US">Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases_lbl" xml:lang="en-US">Purchases</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales" xlink:label="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales" xlink:to="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales_lbl" xml:lang="en-US">Sales that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales_lbl" xml:lang="en-US">Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales_lbl" xml:lang="en-US">Sales</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues" xlink:label="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues" xlink:to="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues_lbl" xml:lang="en-US">Issues that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues_lbl" xml:lang="en-US">Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Issues</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues_lbl" xml:lang="en-US">Issuances</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements" xlink:label="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements" xlink:to="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements_lbl" xml:lang="en-US">Settlements that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements_lbl" xml:lang="en-US">Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements_lbl" xml:lang="en-US">Settlements</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements_lbl" xml:lang="en-US">Settlements</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements" xlink:to="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements_lbl" xml:lang="en-US">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements_lbl" xml:lang="en-US">Purchases, sales, issuances, and settlements (net)</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet" xlink:to="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet_lbl" xml:lang="en-US">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet_lbl" xml:lang="en-US">Net transfers in and/or out of Level 3</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PremiumsWrittenNetPropertyAndCasualtyAbstract" xlink:label="us-gaap_PremiumsWrittenNetPropertyAndCasualtyAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PremiumsWrittenNetPropertyAndCasualtyAbstract" xlink:to="us-gaap_PremiumsWrittenNetPropertyAndCasualtyAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PremiumsWrittenNetPropertyAndCasualtyAbstract_lbl" xml:lang="en-US">Premiums written:</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DirectPremiumsWrittenPropertyAndCasualty" xlink:label="us-gaap_DirectPremiumsWrittenPropertyAndCasualty" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DirectPremiumsWrittenPropertyAndCasualty" xlink:to="us-gaap_DirectPremiumsWrittenPropertyAndCasualty_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DirectPremiumsWrittenPropertyAndCasualty_lbl" xml:lang="en-US">Direct Premiums Written, Property and Casualty</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DirectPremiumsWrittenPropertyAndCasualty_lbl" xml:lang="en-US">Direct</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AssumedPremiumsWrittenPropertyAndCasualty" xlink:label="us-gaap_AssumedPremiumsWrittenPropertyAndCasualty" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssumedPremiumsWrittenPropertyAndCasualty" xlink:to="us-gaap_AssumedPremiumsWrittenPropertyAndCasualty_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssumedPremiumsWrittenPropertyAndCasualty_lbl" xml:lang="en-US">Assumed Premiums Written, Property and Casualty</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AssumedPremiumsWrittenPropertyAndCasualty_lbl" xml:lang="en-US">Assumed</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CededPremiumsWrittenPropertyAndCasualty" xlink:label="us-gaap_CededPremiumsWrittenPropertyAndCasualty" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CededPremiumsWrittenPropertyAndCasualty" xlink:to="us-gaap_CededPremiumsWrittenPropertyAndCasualty_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CededPremiumsWrittenPropertyAndCasualty_lbl" xml:lang="en-US">Ceded Premiums Written, Property and Casualty</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_CededPremiumsWrittenPropertyAndCasualty_lbl" xml:lang="en-US">Ceded premiums written</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CededPremiumsWrittenPropertyAndCasualty_lbl" xml:lang="en-US">Ceded premiums written</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_CededPremiumsWrittenPropertyAndCasualty_lbl" xml:lang="en-US">Ceded premiums written</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PremiumsWrittenNetPropertyAndCasualty" xlink:label="us-gaap_PremiumsWrittenNetPropertyAndCasualty" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PremiumsWrittenNetPropertyAndCasualty" xlink:to="us-gaap_PremiumsWrittenNetPropertyAndCasualty_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PremiumsWrittenNetPropertyAndCasualty_lbl" xml:lang="en-US">Premiums Written, Net, Property and Casualty</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PremiumsWrittenNetPropertyAndCasualty_lbl" xml:lang="en-US">Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_PremiumsWrittenNetPropertyAndCasualty_lbl" xml:lang="en-US">Net</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PremiumsEarnedNetPropertyAndCasualtyAbstract" xlink:label="us-gaap_PremiumsEarnedNetPropertyAndCasualtyAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PremiumsEarnedNetPropertyAndCasualtyAbstract" xlink:to="us-gaap_PremiumsEarnedNetPropertyAndCasualtyAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PremiumsEarnedNetPropertyAndCasualtyAbstract_lbl" xml:lang="en-US">Premiums earned:</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DirectPremiumsEarnedPropertyAndCasualty" xlink:label="us-gaap_DirectPremiumsEarnedPropertyAndCasualty" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DirectPremiumsEarnedPropertyAndCasualty" xlink:to="us-gaap_DirectPremiumsEarnedPropertyAndCasualty_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DirectPremiumsEarnedPropertyAndCasualty_lbl" xml:lang="en-US">Direct Premiums Earned, Property and Casualty</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DirectPremiumsEarnedPropertyAndCasualty_lbl" xml:lang="en-US">Direct</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AssumedPremiumsEarnedPropertyAndCasualty" xlink:label="us-gaap_AssumedPremiumsEarnedPropertyAndCasualty" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssumedPremiumsEarnedPropertyAndCasualty" xlink:to="us-gaap_AssumedPremiumsEarnedPropertyAndCasualty_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssumedPremiumsEarnedPropertyAndCasualty_lbl" xml:lang="en-US">Assumed Premiums Earned, Property and Casualty</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AssumedPremiumsEarnedPropertyAndCasualty_lbl" xml:lang="en-US">Assumed</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CededPremiumsEarnedPropertyAndCasualty" xlink:label="us-gaap_CededPremiumsEarnedPropertyAndCasualty" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CededPremiumsEarnedPropertyAndCasualty" xlink:to="us-gaap_CededPremiumsEarnedPropertyAndCasualty_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CededPremiumsEarnedPropertyAndCasualty_lbl" xml:lang="en-US">Ceded Premiums Earned, Property and Casualty</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_CededPremiumsEarnedPropertyAndCasualty_lbl" xml:lang="en-US">Ceded premiums earned</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CededPremiumsEarnedPropertyAndCasualty_lbl" xml:lang="en-US">Ceded</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_CededPremiumsEarnedPropertyAndCasualty_lbl" xml:lang="en-US">Ceded premiums earned</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PolicyholderBenefitsAndClaimsIncurredNetAbstract" xlink:label="us-gaap_PolicyholderBenefitsAndClaimsIncurredNetAbstract" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PolicyholderBenefitsAndClaimsIncurredNetAbstract" xlink:to="us-gaap_PolicyholderBenefitsAndClaimsIncurredNetAbstract_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PolicyholderBenefitsAndClaimsIncurredNetAbstract_lbl" xml:lang="en-US">Losses and loss expenses incurred:</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PolicyholderBenefitsAndClaimsIncurredGross" xlink:label="us-gaap_PolicyholderBenefitsAndClaimsIncurredGross" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PolicyholderBenefitsAndClaimsIncurredGross" xlink:to="us-gaap_PolicyholderBenefitsAndClaimsIncurredGross_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PolicyholderBenefitsAndClaimsIncurredGross_lbl" xml:lang="en-US">Policyholder Benefits and Claims Incurred, Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PolicyholderBenefitsAndClaimsIncurredGross_lbl" xml:lang="en-US">Direct</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed" xlink:label="us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed" xlink:to="us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed_lbl" xml:lang="en-US">Reinsurance Effect on Claims and Benefits Incurred, Amount Assumed</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed_lbl" xml:lang="en-US">Assumed</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded" xlink:label="us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded" xlink:to="us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded_lbl" xml:lang="en-US">Reinsurance Effect on Claims and Benefits Incurred, Amount Ceded</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded_lbl" xml:lang="en-US">Ceded losses and loss expenses incurred</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded_lbl" xml:lang="en-US">Ceded</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded_lbl" xml:lang="en-US">Ceded losses and loss expenses incurred</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_FloodCededPremiumsAndLossesTable" xlink:label="sigi_FloodCededPremiumsAndLossesTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FloodCededPremiumsAndLossesTable" xlink:to="sigi_FloodCededPremiumsAndLossesTable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_FloodCededPremiumsAndLossesTable_lbl" xml:lang="en-US">Disclosure pertaining to premiums and loss and loss expenses ceded to the National Flood Insurance Program.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_FloodCededPremiumsAndLossesTable_lbl" xml:lang="en-US">Flood Ceded Premiums and Losses [Table]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_FloodCededPremiumsAndLossesAxis" xlink:label="sigi_FloodCededPremiumsAndLossesAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FloodCededPremiumsAndLossesAxis" xlink:to="sigi_FloodCededPremiumsAndLossesAxis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_FloodCededPremiumsAndLossesAxis_lbl" xml:lang="en-US">Information pertaining to premiums and loss and loss expenses ceded to the National Flood Insurance Program.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_FloodCededPremiumsAndLossesAxis_lbl" xml:lang="en-US">Flood Ceded Premiums And Losses [Axis]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_FloodCededPremiumsAndLossesDomain" xlink:label="sigi_FloodCededPremiumsAndLossesDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FloodCededPremiumsAndLossesDomain" xlink:to="sigi_FloodCededPremiumsAndLossesDomain_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_FloodCededPremiumsAndLossesDomain_lbl" xml:lang="en-US">Information pertaining to premiums and loss and loss expenses ceded to the National Flood Insurance Program.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_FloodCededPremiumsAndLossesDomain_lbl" xml:lang="en-US">Flood Ceded Premiums and Losses [Domain]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_NationalFloodInsuranceProgramMember" xlink:label="sigi_NationalFloodInsuranceProgramMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_NationalFloodInsuranceProgramMember" xlink:to="sigi_NationalFloodInsuranceProgramMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_NationalFloodInsuranceProgramMember_lbl" xml:lang="en-US">Represents insurance policies issued and serviced by the Company which provide coverage for losses due to flood.  All premiums, losses and loss expenses are ceded to the federal government through its National Flood Insurance Program for such policies.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_NationalFloodInsuranceProgramMember_lbl" xml:lang="en-US">National Flood Insurance Program [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfContinuingOperationsBySegmentTable" xlink:label="sigi_ScheduleOfContinuingOperationsBySegmentTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfContinuingOperationsBySegmentTable" xlink:to="sigi_ScheduleOfContinuingOperationsBySegmentTable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfContinuingOperationsBySegmentTable_lbl" xml:lang="en-US">A table disclosing the revenue from continuing operations for each reportable segment of the entity.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfContinuingOperationsBySegmentTable_lbl" xml:lang="en-US">Schedule of Continuing Operations by Segment [Table]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_RevenueFromContinuingOperationsBySegmentAxis" xlink:label="sigi_RevenueFromContinuingOperationsBySegmentAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_RevenueFromContinuingOperationsBySegmentAxis" xlink:to="sigi_RevenueFromContinuingOperationsBySegmentAxis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_RevenueFromContinuingOperationsBySegmentAxis_lbl" xml:lang="en-US">Disclosure of revenue from continuing operations for each reportable segment.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_RevenueFromContinuingOperationsBySegmentAxis_lbl" xml:lang="en-US">Revenue From Continuing Operations By Segment [Axis]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_RevenueFromContinuingOperationsBySegmentDomain" xlink:label="sigi_RevenueFromContinuingOperationsBySegmentDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_RevenueFromContinuingOperationsBySegmentDomain" xlink:to="sigi_RevenueFromContinuingOperationsBySegmentDomain_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_RevenueFromContinuingOperationsBySegmentDomain_lbl" xml:lang="en-US">Disclosure of revenue from continuing operations for each reportable segment.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_RevenueFromContinuingOperationsBySegmentDomain_lbl" xml:lang="en-US">Revenue From Continuing Operations By Segment [Domain]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_CommercialAutomobileMember" xlink:label="sigi_CommercialAutomobileMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_CommercialAutomobileMember" xlink:to="sigi_CommercialAutomobileMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_CommercialAutomobileMember_lbl" xml:lang="en-US">Represents insurance coverage provided to policy holders on commercial automobiles.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_CommercialAutomobileMember_lbl" xml:lang="en-US">Commercial Automobile [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_WorkersCompensationMember" xlink:label="sigi_WorkersCompensationMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_WorkersCompensationMember" xlink:to="sigi_WorkersCompensationMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_WorkersCompensationMember_lbl" xml:lang="en-US">Represents insurance coverage provided to policy holders for workers compensation.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_WorkersCompensationMember_lbl" xml:lang="en-US">Workers Compensation [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InsuranceServicesRevenue" xlink:label="us-gaap_InsuranceServicesRevenue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InsuranceServicesRevenue" xlink:to="us-gaap_InsuranceServicesRevenue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InsuranceServicesRevenue_lbl" xml:lang="en-US">Insurance Services Revenue</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InsuranceServicesRevenue_lbl" xml:lang="en-US">Total Insurance Operations revenues</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_InsuranceServicesRevenue_lbl" xml:lang="en-US">Total Insurance Operations revenues</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_InsuranceServicesRevenue_lbl" xml:lang="en-US">Total Insurance Operations revenues</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_TotalInvestmentRevenues" xlink:label="sigi_TotalInvestmentRevenues" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_TotalInvestmentRevenues" xlink:to="sigi_TotalInvestmentRevenues_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_TotalInvestmentRevenues_lbl" xml:lang="en-US">The income earned from investments in securities and other investments including dividends, interest, and returns on other investments, including realized gains/losses.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_TotalInvestmentRevenues_lbl" xml:lang="en-US">Total Investment Revenues</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_TotalInvestmentRevenues_lbl" xml:lang="en-US">Total investment revenues</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="sigi_TotalInvestmentRevenues_lbl" xml:lang="en-US">Total investment income, before federal income tax</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SegmentReportingSegmentRevenue" xlink:label="us-gaap_SegmentReportingSegmentRevenue" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SegmentReportingSegmentRevenue" xlink:to="us-gaap_SegmentReportingSegmentRevenue_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SegmentReportingSegmentRevenue_lbl" xml:lang="en-US">Segment Reporting, Segment Revenue</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SegmentReportingSegmentRevenue_lbl" xml:lang="en-US">Total all segments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_SegmentReportingSegmentRevenue_lbl" xml:lang="en-US">Total all segments</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:to="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_lbl" xml:lang="en-US">Schedule of Segment Reporting Information, by Segment [Table]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_UnderwritingIncomeLossBeforeFederalIncomeTaxes" xlink:label="sigi_UnderwritingIncomeLossBeforeFederalIncomeTaxes" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_UnderwritingIncomeLossBeforeFederalIncomeTaxes" xlink:to="sigi_UnderwritingIncomeLossBeforeFederalIncomeTaxes_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_UnderwritingIncomeLossBeforeFederalIncomeTaxes_lbl" xml:lang="en-US">Net premiums earned and other insurance income less net loss and loss expenses incurred, loss adjustment expenses, policy acquisition costs and other underwriting expenses.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_UnderwritingIncomeLossBeforeFederalIncomeTaxes_lbl" xml:lang="en-US">Underwriting Income Loss Before Federal Income Taxes</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_UnderwritingIncomeLossBeforeFederalIncomeTaxes_lbl" xml:lang="en-US">Underwriting loss, before federal income tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="sigi_UnderwritingIncomeLossBeforeFederalIncomeTaxes_lbl" xml:lang="en-US">Underwriting (loss) income, before federal income tax</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_GaapCombinedRatio" xlink:label="sigi_GaapCombinedRatio" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_GaapCombinedRatio" xlink:to="sigi_GaapCombinedRatio_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_GaapCombinedRatio_lbl" xml:lang="en-US">The GAAP combined ratio (expressed as a percentage) is a calculation wherein the sum of: (i) loss and loss adjustment expenses (ii) underwriting expenses and (iii) dividends to policyholders is divided by net premiums earned.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_GaapCombinedRatio_lbl" xml:lang="en-US">GAAP Combined Ratio</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_GaapCombinedRatio_lbl" xml:lang="en-US">GAAP combined ratio</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_StatutoryCombinedRatio" xlink:label="sigi_StatutoryCombinedRatio" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_StatutoryCombinedRatio" xlink:to="sigi_StatutoryCombinedRatio_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_StatutoryCombinedRatio_lbl" xml:lang="en-US">The statutory combined ratio (expressed as a percentage) is the sum of:  (i) the loss and loss expense ratio; (ii) the underwriting ratio; and (iii) the dividend ratio.  The loss and loss expense ratio as well as the dividend ratio is calculated by dividing loss and loss expenses, as well as dividends to policyholders, by net premiums earned.  The  underwriting expense ratio is calculated by dividing underwriting expenses by net premiums written.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_StatutoryCombinedRatio_lbl" xml:lang="en-US">Statutory Combined Ratio</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_StatutoryCombinedRatio_lbl" xml:lang="en-US">Statutory combined ratio</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_TotalSegmentIncomeLossFromContinuingOperationsBeforeFederalIncomeTax" xlink:label="sigi_TotalSegmentIncomeLossFromContinuingOperationsBeforeFederalIncomeTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_TotalSegmentIncomeLossFromContinuingOperationsBeforeFederalIncomeTax" xlink:to="sigi_TotalSegmentIncomeLossFromContinuingOperationsBeforeFederalIncomeTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_TotalSegmentIncomeLossFromContinuingOperationsBeforeFederalIncomeTax_lbl" xml:lang="en-US">Total of all reportable segments' income or loss from continuing operations, before federal income taxes.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_TotalSegmentIncomeLossFromContinuingOperationsBeforeFederalIncomeTax_lbl" xml:lang="en-US">Total Segment Income Loss From Continuing Operations Before Federal Income Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_TotalSegmentIncomeLossFromContinuingOperationsBeforeFederalIncomeTax_lbl" xml:lang="en-US">Total investment income, before federal income tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="sigi_TotalSegmentIncomeLossFromContinuingOperationsBeforeFederalIncomeTax_lbl" xml:lang="en-US">Total all segments</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_GeneralCorporateAndOtherExpenses" xlink:label="sigi_GeneralCorporateAndOtherExpenses" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_GeneralCorporateAndOtherExpenses" xlink:to="sigi_GeneralCorporateAndOtherExpenses_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_GeneralCorporateAndOtherExpenses_lbl" xml:lang="en-US">Represents other corporate and general expenses that are not related to the entity's reportable segments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_GeneralCorporateAndOtherExpenses_lbl" xml:lang="en-US">General Corporate And Other Expenses</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_GeneralCorporateAndOtherExpenses_lbl" xml:lang="en-US">General corporate and other expenses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_GeneralCorporateAndOtherExpenses_lbl" xml:lang="en-US">General corporate and other expenses</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:label="us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:to="us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_lbl" xml:lang="en-US">Schedule of Defined Benefit Plans Disclosures [Table]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:label="us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:to="us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_lbl" xml:lang="en-US">Defined Benefit Plans Disclosures, Defined Benefit Plans [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlansDomain" xlink:label="us-gaap_DefinedBenefitPlansDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedBenefitPlansDomain" xlink:to="us-gaap_DefinedBenefitPlansDomain_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DefinedBenefitPlansDomain_lbl" xml:lang="en-US">Defined Benefit Plans [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PensionPlansDefinedBenefitMember" xlink:label="us-gaap_PensionPlansDefinedBenefitMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PensionPlansDefinedBenefitMember" xlink:to="us-gaap_PensionPlansDefinedBenefitMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PensionPlansDefinedBenefitMember_lbl" xml:lang="en-US">Retirement Income Plan [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear" xlink:label="us-gaap_DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear" xlink:to="us-gaap_DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear_lbl" xml:lang="en-US">Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear_lbl" xml:lang="en-US">Estimated contribution from the employer</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanContributionsByEmployer" xlink:label="us-gaap_DefinedBenefitPlanContributionsByEmployer" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedBenefitPlanContributionsByEmployer" xlink:to="us-gaap_DefinedBenefitPlanContributionsByEmployer_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DefinedBenefitPlanContributionsByEmployer_lbl" xml:lang="en-US">Defined Benefit Plan, Contributions by Employer</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DefinedBenefitPlanContributionsByEmployer_lbl" xml:lang="en-US">Contribution by the employer</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:label="us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:to="us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_lbl" xml:lang="en-US">Retirement Life Plan [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost" xlink:label="us-gaap_DefinedBenefitPlanServiceCost" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedBenefitPlanServiceCost" xlink:to="us-gaap_DefinedBenefitPlanServiceCost_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DefinedBenefitPlanServiceCost_lbl" xml:lang="en-US">Defined Benefit Plan, Service Cost</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DefinedBenefitPlanServiceCost_lbl" xml:lang="en-US">Service cost</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="us-gaap_DefinedBenefitPlanInterestCost" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedBenefitPlanInterestCost" xlink:to="us-gaap_DefinedBenefitPlanInterestCost_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DefinedBenefitPlanInterestCost_lbl" xml:lang="en-US">Defined Benefit Plan, Interest Cost</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DefinedBenefitPlanInterestCost_lbl" xml:lang="en-US">Interest cost</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:label="us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:to="us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_lbl" xml:lang="en-US">Defined Benefit Plan, Expected Return on Plan Assets</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_lbl" xml:lang="en-US">Expected return on plan assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_lbl" xml:lang="en-US">Expected return on plan assets</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:label="us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:to="us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_lbl" xml:lang="en-US">Defined Benefit Plan, Amortization of Prior Service Cost (Credit)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_lbl" xml:lang="en-US">Amortization of unrecognized prior service cost</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:to="us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_lbl" xml:lang="en-US">Defined Benefit Plan, Amortization of Gains (Losses)</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_lbl" xml:lang="en-US">Amortization of unrecognized net loss</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_lbl" xml:lang="en-US">Amortization of unrecognized net loss</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_lbl" xml:lang="en-US">Defined Benefit Plan, Net Periodic Benefit Cost</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_lbl" xml:lang="en-US">Net periodic cost</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_lbl" xml:lang="en-US">Net periodic cost (benefit)</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate" xlink:label="us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate" xlink:to="us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate_lbl" xml:lang="en-US">Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate_lbl" xml:lang="en-US">Discount rate</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets" xlink:label="us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets" xlink:to="us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets_lbl" xml:lang="en-US">Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets_lbl" xml:lang="en-US">Expected return on plan assets</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease" xlink:label="us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease" xlink:to="us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease_lbl" xml:lang="en-US">Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease_lbl" xml:lang="en-US">Rate of compensation increase</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_IncomeLossFromContinuingOperationsAndDiscontinuedOperationsBeforeFederalIncomeTax" xlink:label="sigi_IncomeLossFromContinuingOperationsAndDiscontinuedOperationsBeforeFederalIncomeTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_IncomeLossFromContinuingOperationsAndDiscontinuedOperationsBeforeFederalIncomeTax" xlink:to="sigi_IncomeLossFromContinuingOperationsAndDiscontinuedOperationsBeforeFederalIncomeTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_IncomeLossFromContinuingOperationsAndDiscontinuedOperationsBeforeFederalIncomeTax_lbl" xml:lang="en-US">Income or loss from continuing operations and discontinued operations before income taxes.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_IncomeLossFromContinuingOperationsAndDiscontinuedOperationsBeforeFederalIncomeTax_lbl" xml:lang="en-US">Income Loss From Continuing Operations And Discontinued Operations Before Federal Income Tax</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_IncomeLossFromContinuingOperationsAndDiscontinuedOperationsBeforeFederalIncomeTax_lbl" xml:lang="en-US">Net income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_IncomeLossFromContinuingOperationsAndDiscontinuedOperationsBeforeFederalIncomeTax_lbl" xml:lang="en-US">Net income, Gross</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesDuringPeriodBeforeTax" xlink:label="sigi_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesDuringPeriodBeforeTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesDuringPeriodBeforeTax" xlink:to="sigi_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesDuringPeriodBeforeTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesDuringPeriodBeforeTax_lbl" xml:lang="en-US">Gross appreciation or the gross loss in value of the total of unsold fixed maturity and equity securities during the period being reported (except when designated as a fair value hedge). This includes certain changes in the unrealized holding gain or loss for held-to-maturity securities transferred from the available-for-sale category.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesDuringPeriodBeforeTax_lbl" xml:lang="en-US">Other Comprehensive Income Unrealized Holding Gain Loss On Securities During Period Before Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesDuringPeriodBeforeTax_lbl" xml:lang="en-US">Unrealized holding gains during the period, Gross</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeGross" xlink:label="sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeGross" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeGross" xlink:to="sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeGross_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeGross_lbl" xml:lang="en-US">Non-credit portion of other-than-temporary impairment losses on fixed maturity securities recognized in other comprehensive income before tax. This item includes subsequent changes to these securities such as amortization on HTM securities or subsequent sales. This item does not include subsequent changes in appreciation or loss in value.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeGross_lbl" xml:lang="en-US">Non Credit Portion Of Other Than Temporary Impairment Losses Recognized In Other Comprehensive Income Gross</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeGross_lbl" xml:lang="en-US">Portion of OTTI recognized in OCI, Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeGross_lbl" xml:lang="en-US">Portion of OTTI recognized in OCI, Gross</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleBeforeTax" xlink:label="sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleBeforeTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleBeforeTax" xlink:to="sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleBeforeTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleBeforeTax_lbl" xml:lang="en-US">Pre-tax amortization of net unrealized holding gain or loss of held-to-maturity securities transferred from the available-for-sale category.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleBeforeTax_lbl" xml:lang="en-US">Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Before Tax</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleBeforeTax_lbl" xml:lang="en-US">Amortization of net unrealized gains on HTM securities, Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleBeforeTax_lbl" xml:lang="en-US">Amortization of net unrealized gains on HTM securities, Gross</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax" xlink:to="us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax_lbl" xml:lang="en-US">Other Comprehensive Income, Reclassification Adjustment for Sale of Securities Included in Net Income, before Tax</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax_lbl" xml:lang="en-US">Reclassification adjustment for (gains) losses included in net income, Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax_lbl" xml:lang="en-US">Reclassification adjustment for losses included in net income, Gross</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_TotalUnrealizedGainsLossesOnInvestmentSecuritiesGross" xlink:label="sigi_TotalUnrealizedGainsLossesOnInvestmentSecuritiesGross" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_TotalUnrealizedGainsLossesOnInvestmentSecuritiesGross" xlink:to="sigi_TotalUnrealizedGainsLossesOnInvestmentSecuritiesGross_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_TotalUnrealizedGainsLossesOnInvestmentSecuritiesGross_lbl" xml:lang="en-US">Gross change in unrealized gains or losses on investment securities during the period, including the non-credit portion of other-than-temporary impairment.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_TotalUnrealizedGainsLossesOnInvestmentSecuritiesGross_lbl" xml:lang="en-US">Total Unrealized Gains Losses On Investment Securities Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_TotalUnrealizedGainsLossesOnInvestmentSecuritiesGross_lbl" xml:lang="en-US">Net unrealized gains, Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="sigi_TotalUnrealizedGainsLossesOnInvestmentSecuritiesGross_lbl" xml:lang="en-US">Net unrealized gains, Gross</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTax" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTax" xlink:to="us-gaap_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTax_lbl" xml:lang="en-US">Other Comprehensive Income, Reclassification of Defined Benefit Plan's Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTax_lbl" xml:lang="en-US">Net actuarial loss, Gross</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostCreditRecognizedInNetPeriodicBenefitCostBeforeTax" xlink:label="us-gaap_OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostCreditRecognizedInNetPeriodicBenefitCostBeforeTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostCreditRecognizedInNetPeriodicBenefitCostBeforeTax" xlink:to="us-gaap_OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostCreditRecognizedInNetPeriodicBenefitCostBeforeTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostCreditRecognizedInNetPeriodicBenefitCostBeforeTax_lbl" xml:lang="en-US">Other Comprehensive Income, Amortization of Defined Benefit Plan Net Prior Service Cost (Credit) Recognized in Net Periodic Benefit Cost, before Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostCreditRecognizedInNetPeriodicBenefitCostBeforeTax_lbl" xml:lang="en-US">Prior service cost, Gross</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPeriodIncreaseDecrease" xlink:label="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPeriodIncreaseDecrease" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPeriodIncreaseDecrease" xlink:to="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPeriodIncreaseDecrease_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPeriodIncreaseDecrease_lbl" xml:lang="en-US">Other Comprehensive Income, Defined Benefit Plan's Adjustment, before Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPeriodIncreaseDecrease_lbl" xml:lang="en-US">Defined benefit pension plans, Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPeriodIncreaseDecrease_lbl" xml:lang="en-US">Defined benefit pension and post-retirement plans, Gross</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ComprehensiveIncomeLossBeforeTax" xlink:label="sigi_ComprehensiveIncomeLossBeforeTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ComprehensiveIncomeLossBeforeTax" xlink:to="sigi_ComprehensiveIncomeLossBeforeTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ComprehensiveIncomeLossBeforeTax_lbl" xml:lang="en-US">The pre-tax change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ComprehensiveIncomeLossBeforeTax_lbl" xml:lang="en-US">Comprehensive Income Loss Before Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ComprehensiveIncomeLossBeforeTax_lbl" xml:lang="en-US">Comprehensive income, Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="sigi_ComprehensiveIncomeLossBeforeTax_lbl" xml:lang="en-US">Comprehensive income, Gross</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_IncomeFromContinuingOperationsAndDiscontinuedOperationsTax" xlink:label="sigi_IncomeFromContinuingOperationsAndDiscontinuedOperationsTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_IncomeFromContinuingOperationsAndDiscontinuedOperationsTax" xlink:to="sigi_IncomeFromContinuingOperationsAndDiscontinuedOperationsTax_lbl" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_IncomeFromContinuingOperationsAndDiscontinuedOperationsTax_lbl" xml:lang="en-US">Income From Continuing Operations And Discontinued Operations Tax</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_IncomeFromContinuingOperationsAndDiscontinuedOperationsTax_lbl" xml:lang="en-US">Net income, Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_IncomeFromContinuingOperationsAndDiscontinuedOperationsTax_lbl" xml:lang="en-US">Net income, Tax</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesDuringPeriodTax" xlink:label="sigi_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesDuringPeriodTax" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesDuringPeriodTax_lbl" xml:lang="en-US">Tax effect of the gross appreciation or the gross loss in value of the total of unsold fixed maturity and equity securities during the period being reported (except when designated as a fair value hedge). This includes certain changes in the unrealized holding gain or loss for held-to-maturity securities transferred from the available-for-sale category.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesDuringPeriodTax_lbl" xml:lang="en-US">Other Comprehensive Income Unrealized Holding Gain Loss On Securities During Period Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesDuringPeriodTax_lbl" xml:lang="en-US">Unrealized holding gains during the period, Tax</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeTax" xlink:label="sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeTax" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeTax_lbl" xml:lang="en-US">Tax effect on non-credit portion of other-than-temporary impairment losses on fixed maturity securities recognized in other comprehensive income. This item includes subsequent changes to these securities such as amortization on HTM securities or subsequent sales. This item does not include subsequent changes in appreciation or loss in value.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeTax_lbl" xml:lang="en-US">Non Credit Portion Of Other Than Temporary Impairment Losses Recognized In Other Comprehensive Income Tax</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeTax_lbl" xml:lang="en-US">Portion of OTTI recognized in OCI, Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_NonCreditPortionOfOtherThanTemporaryImpairmentLossesRecognizedInOtherComprehensiveIncomeTax_lbl" xml:lang="en-US">Portion of OTTI recognized in OCI, Tax</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleTax" xlink:label="sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleTax" xlink:to="sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleTax_lbl" xml:lang="en-US">Tax effect of amortization of net unrealized holding gain or loss of held-to-maturity securities transferred from the available-for-sale category.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleTax_lbl" xml:lang="en-US">Amortization Of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Tax</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleTax_lbl" xml:lang="en-US">Amortization of net unrealized gains on HTM securities, Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleTax_lbl" xml:lang="en-US">Amortization of net unrealized gains on HTM securities, Tax</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax" xlink:to="us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax_lbl" xml:lang="en-US">Other Comprehensive Income, Reclassification Adjustment for Sale of Securities Included in Net Income, Tax</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax_lbl" xml:lang="en-US">Reclassification adjustment for (gains) losses included in net income, Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax_lbl" xml:lang="en-US">Reclassification adjustment for gains included in net income, Tax</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_TotalUnrealizedGainsLossesOnInvestmentSecuritiesTax" xlink:label="sigi_TotalUnrealizedGainsLossesOnInvestmentSecuritiesTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_TotalUnrealizedGainsLossesOnInvestmentSecuritiesTax" xlink:to="sigi_TotalUnrealizedGainsLossesOnInvestmentSecuritiesTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_TotalUnrealizedGainsLossesOnInvestmentSecuritiesTax_lbl" xml:lang="en-US">Tax effect of the change in unrealized gains or losses on investment securities during the period, including the non-credit portion of other-than-temporary impairment.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_TotalUnrealizedGainsLossesOnInvestmentSecuritiesTax_lbl" xml:lang="en-US">Total Unrealized Gains Losses On Investment Securities Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="sigi_TotalUnrealizedGainsLossesOnInvestmentSecuritiesTax_lbl" xml:lang="en-US">Net unrealized gains, Tax</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax" xlink:to="us-gaap_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax_lbl" xml:lang="en-US">Other Comprehensive Income, Reclassification of Defined Benefit Plan's Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Tax</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax_lbl" xml:lang="en-US">Net actuarial loss, Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax_lbl" xml:lang="en-US">Net actuarial loss, Tax</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostTax" xlink:label="us-gaap_OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostTax" xlink:to="us-gaap_OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostTax_lbl" xml:lang="en-US">Other Comprehensive Income, Amortization of Defined Benefit Plan Net Prior Service Cost Recognized in Net Periodic Pension Cost, Tax</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostTax_lbl" xml:lang="en-US">Prior service cost, Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostTax_lbl" xml:lang="en-US">Prior service credit, Tax</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTax" xlink:label="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTax" xlink:to="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTax_lbl" xml:lang="en-US">Defined benefit pension plans, net of deferred income tax effect</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTax_lbl" xml:lang="en-US">Defined benefit pension plans, deferred income tax effect</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTax_lbl" xml:lang="en-US">Defined benefit pension and post-retirement plans, Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTax_lbl" xml:lang="en-US">Defined benefit pension plans, Tax</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ComprehensiveIncomeLossTax" xlink:label="sigi_ComprehensiveIncomeLossTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ComprehensiveIncomeLossTax" xlink:to="sigi_ComprehensiveIncomeLossTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ComprehensiveIncomeLossTax_lbl" xml:lang="en-US">The tax effect of the change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ComprehensiveIncomeLossTax_lbl" xml:lang="en-US">Comprehensive Income Loss Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ComprehensiveIncomeLossTax_lbl" xml:lang="en-US">Comprehensive income, Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="sigi_ComprehensiveIncomeLossTax_lbl" xml:lang="en-US">Comprehensive income, Tax</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesDuringPeriodNetOfTax" xlink:label="sigi_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesDuringPeriodNetOfTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesDuringPeriodNetOfTax" xlink:to="sigi_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesDuringPeriodNetOfTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesDuringPeriodNetOfTax_lbl" xml:lang="en-US">Gross appreciation or the gross loss in value of the total of unsold fixed maturity and equity securities during the period being reported, net of tax (except when designated as a fair value hedge). This includes certain changes in the unrealized holding gain or loss for held-to-maturity securities transferred from the available-for-sale category.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesDuringPeriodNetOfTax_lbl" xml:lang="en-US">Other Comprehensive Income Unrealized Holding Gain Loss On Securities During Period Net Of Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesDuringPeriodNetOfTax_lbl" xml:lang="en-US">Unrealized holding gains during the period, Net</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleNetOfTax" xlink:label="sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleNetOfTax" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleNetOfTax_lbl" xml:lang="en-US">After-tax amortization of net unrealized holding gain or loss of held-to-maturity securities transferred from the available-for-sale category.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleNetOfTax_lbl" xml:lang="en-US">Amortization of Net Unrealized Gains Losses On Held To Maturity Transferred From Available For Sale Net Of Tax</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleNetOfTax_lbl" xml:lang="en-US">Amortization of net unrealized gains on HTM securiites, Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AmortizationOfNetUnrealizedGainsLossesOnHeldToMaturityTransferredFromAvailableForSaleNetOfTax_lbl" xml:lang="en-US">Amortization of net unrealized gains on HTM securiites, Net</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax_lbl" xml:lang="en-US">Other Comprehensive Income, Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax_lbl" xml:lang="en-US">Reclassification adjustment for (gains) losses included in net income, Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax_lbl" xml:lang="en-US">Reclassification adjustment for losses included in net income, Net</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax_lbl" xml:lang="en-US">Other Comprehensive Income, Reclassification of Defined Benefit Plan's Net (Gain) Loss Recognized in Net Periodic Benefit Cost, Net of Tax</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax_lbl" xml:lang="en-US">Net actuarial loss, Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax_lbl" xml:lang="en-US">Net actuarial loss, Net</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax_lbl" xml:lang="en-US">Prior service cost, Net</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentRelatedNetUnrealizedGainLoss" xlink:to="sigi_AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentRelatedNetUnrealizedGainLoss_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentRelatedNetUnrealizedGainLoss_lbl" xml:lang="en-US">The net unrealized gain or (loss) included in accumulated other comprehensive income associated with the non-credit portion of other-than-temporary impairment losses on fixed maturity securities, net of tax.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentRelatedNetUnrealizedGainLoss_lbl" xml:lang="en-US">Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment Related Net Unrealized Gain Loss</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negatedPeriodEnd" xlink:label="sigi_AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentRelatedNetUnrealizedGainLoss_lbl" xml:lang="en-US">Ending balance, OTTI Related Net Unrealized (Loss) Gain</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negatedPeriodStart" xlink:label="sigi_AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentRelatedNetUnrealizedGainLoss_lbl" xml:lang="en-US">Beginning balance, OTTI Related Net Unrealized (Loss) Gain</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="sigi_AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentRelatedNetUnrealizedGainLoss_lbl" xml:lang="en-US">Ending balance, OTTI Related Net Unrealized (Loss) Gain</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="sigi_AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentRelatedNetUnrealizedGainLoss_lbl" xml:lang="en-US">Beginning balance, OTTI Related Net Unrealized (Loss) Gain</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AccumulatedOtherComprehensiveIncomeLossHeldToMaturityRelatedNetUnrealizedGainLoss" xlink:label="sigi_AccumulatedOtherComprehensiveIncomeLossHeldToMaturityRelatedNetUnrealizedGainLoss" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AccumulatedOtherComprehensiveIncomeLossHeldToMaturityRelatedNetUnrealizedGainLoss" xlink:to="sigi_AccumulatedOtherComprehensiveIncomeLossHeldToMaturityRelatedNetUnrealizedGainLoss_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AccumulatedOtherComprehensiveIncomeLossHeldToMaturityRelatedNetUnrealizedGainLoss_lbl" xml:lang="en-US">The net unrealized holding gain (loss) related to held-to-maturity securities transferred from the available-for-sale category, net of tax.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AccumulatedOtherComprehensiveIncomeLossHeldToMaturityRelatedNetUnrealizedGainLoss_lbl" xml:lang="en-US">Accumulated Other Comprehensive Income Loss Held To Maturity Related Net Unrealized Gain Loss</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="sigi_AccumulatedOtherComprehensiveIncomeLossHeldToMaturityRelatedNetUnrealizedGainLoss_lbl" xml:lang="en-US">Ending balance, HTM related Net Unrealized Gain (Loss)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="sigi_AccumulatedOtherComprehensiveIncomeLossHeldToMaturityRelatedNetUnrealizedGainLoss_lbl" xml:lang="en-US">Beginning balance, HTM related Net Unrealized Gain (Loss)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AccumulatedOtherComprehensiveIncomeLossHeldToMaturityRelatedNetUnrealizedGainLoss_lbl" xml:lang="en-US">HTM related Net Unrealized Gain (Loss)</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AccumulatedOtherComprehensiveIncomeLossAllOtherNetUnrealizedGainLoss" xlink:label="sigi_AccumulatedOtherComprehensiveIncomeLossAllOtherNetUnrealizedGainLoss" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AccumulatedOtherComprehensiveIncomeLossAllOtherNetUnrealizedGainLoss" xlink:to="sigi_AccumulatedOtherComprehensiveIncomeLossAllOtherNetUnrealizedGainLoss_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AccumulatedOtherComprehensiveIncomeLossAllOtherNetUnrealizedGainLoss_lbl" xml:lang="en-US">Accumulated appreciation or loss, net of tax, in value of the total of unsold securities at the end of an accounting period, excluding unrealized gain (loss) related to (i) the non-credit portion of other-than-temporary impairment losses on fixed maturity securities and (ii) held-to-maturity securities transferred from the available for sale category.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AccumulatedOtherComprehensiveIncomeLossAllOtherNetUnrealizedGainLoss_lbl" xml:lang="en-US">Accumulated Other Comprehensive Income Loss All Other Net Unrealized Gain Loss</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="sigi_AccumulatedOtherComprehensiveIncomeLossAllOtherNetUnrealizedGainLoss_lbl" xml:lang="en-US">Ending balance, All Other Net Unrealized Gain</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="sigi_AccumulatedOtherComprehensiveIncomeLossAllOtherNetUnrealizedGainLoss_lbl" xml:lang="en-US">Beginning balance, All Other Net Unrealized Gain</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AccumulatedOtherComprehensiveIncomeLossAllOtherNetUnrealizedGainLoss_lbl" xml:lang="en-US">All Other Net Unrealized Gain (Loss)</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax_lbl" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss), Defined Benefit Pension and Other Postretirement Plans, Net of Tax</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negatedPeriodEnd" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax_lbl" xml:lang="en-US">Ending balance, Defined Benefit Pension and Post-retirement Plans</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negatedPeriodStart" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax_lbl" xml:lang="en-US">Beginning balance, Defined Benefit Pension and Post-retirement Plans</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax_lbl" xml:lang="en-US">Balance, Defined Benefit Pension Plans</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax_lbl" xml:lang="en-US">Balance, Defined Benefit Pension Plans</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax_lbl" xml:lang="en-US">Defined Benefit Pension Plans</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax_lbl" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss), Defined Benefit Pension and Other Postretirement Plans, Net of Tax, Total</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ChangesInNetUnrealizedGainLossRelatedToHeldToMaturitySecurities" xlink:label="sigi_ChangesInNetUnrealizedGainLossRelatedToHeldToMaturitySecurities" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ChangesInNetUnrealizedGainLossRelatedToHeldToMaturitySecurities" xlink:to="sigi_ChangesInNetUnrealizedGainLossRelatedToHeldToMaturitySecurities_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ChangesInNetUnrealizedGainLossRelatedToHeldToMaturitySecurities_lbl" xml:lang="en-US">Represents the total change during the period in the accumulated other comprehensive income or loss  balance related to held-to-maturity securities transferred from the available-for-sale category recognized in  other comprehensive income.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ChangesInNetUnrealizedGainLossRelatedToHeldToMaturitySecurities_lbl" xml:lang="en-US">Changes In Net Unrealized Gain Loss Related To Held To Maturity Securities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ChangesInNetUnrealizedGainLossRelatedToHeldToMaturitySecurities_lbl" xml:lang="en-US">Changes in HTM Related Net Unrealized Gain (Loss)</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:label="us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:to="us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_lbl" xml:lang="en-US">Other coomprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net of Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_lbl" xml:lang="en-US">Changes in All Other Net Unrealized Gain</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ChangesInComponentsOfAccumulatedOtherComprehensiveIncomeLoss" xlink:label="sigi_ChangesInComponentsOfAccumulatedOtherComprehensiveIncomeLoss" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ChangesInComponentsOfAccumulatedOtherComprehensiveIncomeLoss" xlink:to="sigi_ChangesInComponentsOfAccumulatedOtherComprehensiveIncomeLoss_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ChangesInComponentsOfAccumulatedOtherComprehensiveIncomeLoss_lbl" xml:lang="en-US">Represents total other comprehensive income or loss for the period, net of tax.  Includes deferred gains (losses) on qualifying hedges,  unrealized holding gains (losses) on investment securities, certain changes in the liability for defined benefit pension plans, the portion of other-than-temporary impairments recognized in other comprehensive income, and translation adjustments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ChangesInComponentsOfAccumulatedOtherComprehensiveIncomeLoss_lbl" xml:lang="en-US">Changes In The Components Of Accumulated Other Comprehensive Income Loss</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_ChangesInComponentsOfAccumulatedOtherComprehensiveIncomeLoss_lbl" xml:lang="en-US">Changes in Total Accumulated OCI</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_NumberOfInsuranceSubsidiaries" xlink:label="sigi_NumberOfInsuranceSubsidiaries" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_NumberOfInsuranceSubsidiaries" xlink:to="sigi_NumberOfInsuranceSubsidiaries_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_NumberOfInsuranceSubsidiaries_lbl" xml:lang="en-US">The number of insurance subsidiaries of the entity.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_NumberOfInsuranceSubsidiaries_lbl" xml:lang="en-US">Number of Insurance Subsidiaries</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_PercentageOfInterestSoldInSubsidiary" xlink:label="sigi_PercentageOfInterestSoldInSubsidiary" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_PercentageOfInterestSoldInSubsidiary" xlink:to="sigi_PercentageOfInterestSoldInSubsidiary_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_PercentageOfInterestSoldInSubsidiary_lbl" xml:lang="en-US">This item represents the percentage of the company's interest in its subsidiary that was sold.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_PercentageOfInterestSoldInSubsidiary_lbl" xml:lang="en-US">Percentage Of Interest Sold In Subsidiary</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_PercentageOfInterestSoldInSubsidiary_lbl" xml:lang="en-US">Percentage of interest sold in Selective HR</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_PeriodOverWhichProceedsAreScheduledToBeReceived" xlink:label="sigi_PeriodOverWhichProceedsAreScheduledToBeReceived" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_PeriodOverWhichProceedsAreScheduledToBeReceived" xlink:to="sigi_PeriodOverWhichProceedsAreScheduledToBeReceived_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_PeriodOverWhichProceedsAreScheduledToBeReceived_lbl" xml:lang="en-US">The number of years over which the proceeds from sale of subsidiary are scheduled to be received.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_PeriodOverWhichProceedsAreScheduledToBeReceived_lbl" xml:lang="en-US">Period over which proceeds are scheduled to be received</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_EstimatedSalesPriceOfSubsidiary" xlink:label="sigi_EstimatedSalesPriceOfSubsidiary" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_EstimatedSalesPriceOfSubsidiary" xlink:to="sigi_EstimatedSalesPriceOfSubsidiary_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_EstimatedSalesPriceOfSubsidiary_lbl" xml:lang="en-US">This item represents the estimated proceeds associated with the sale of a subsidiary.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_EstimatedSalesPriceOfSubsidiary_lbl" xml:lang="en-US">Estimated Sales Price Of Subsidiary</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_EstimatedSalesPriceOfSubsidiary_lbl" xml:lang="en-US">Estimated sales price of Selective HR</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_SalesPriceReceivedOnSubsidiary" xlink:label="sigi_SalesPriceReceivedOnSubsidiary" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_SalesPriceReceivedOnSubsidiary" xlink:to="sigi_SalesPriceReceivedOnSubsidiary_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_SalesPriceReceivedOnSubsidiary_lbl" xml:lang="en-US">Amount of sales price for sale of subsidiary that has been received as of the balance sheet date.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_SalesPriceReceivedOnSubsidiary_lbl" xml:lang="en-US">Sales Price Received On Subsidiary</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_SalesPriceReceivedOnSubsidiary_lbl" xml:lang="en-US">Sales price received on subsidiary</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ForeignGovernmentDebtSecuritiesMember" xlink:label="us-gaap_ForeignGovernmentDebtSecuritiesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ForeignGovernmentDebtSecuritiesMember" xlink:to="us-gaap_ForeignGovernmentDebtSecuritiesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ForeignGovernmentDebtSecuritiesMember_lbl" xml:lang="en-US">Foreign Government [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_USStatesAndPoliticalSubdivisionsMember" xlink:label="us-gaap_USStatesAndPoliticalSubdivisionsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_USStatesAndPoliticalSubdivisionsMember" xlink:to="us-gaap_USStatesAndPoliticalSubdivisionsMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_USStatesAndPoliticalSubdivisionsMember_lbl" xml:lang="en-US">Obligations of States and Political Subdivisions [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CorporateDebtSecuritiesMember" xlink:label="us-gaap_CorporateDebtSecuritiesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CorporateDebtSecuritiesMember" xlink:to="us-gaap_CorporateDebtSecuritiesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CorporateDebtSecuritiesMember_lbl" xml:lang="en-US">Corporate Securities [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AssetBackedSecuritiesMember" xlink:label="us-gaap_AssetBackedSecuritiesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetBackedSecuritiesMember" xlink:to="us-gaap_AssetBackedSecuritiesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetBackedSecuritiesMember_lbl" xml:lang="en-US">Asset-backed Securities ("ABS") [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CommercialMortgageBackedSecuritiesMember" xlink:label="us-gaap_CommercialMortgageBackedSecuritiesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommercialMortgageBackedSecuritiesMember" xlink:to="us-gaap_CommercialMortgageBackedSecuritiesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommercialMortgageBackedSecuritiesMember_lbl" xml:lang="en-US">Commercial Mortgage-backed Securities ("CMBS") [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ResidentialMortgageBackedSecuritiesMember" xlink:label="us-gaap_ResidentialMortgageBackedSecuritiesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ResidentialMortgageBackedSecuritiesMember" xlink:to="us-gaap_ResidentialMortgageBackedSecuritiesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ResidentialMortgageBackedSecuritiesMember_lbl" xml:lang="en-US">Residential Mortgage Backed Securities ("RMBS") [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AfsFixedMaturitySecuritiesMember" xlink:label="sigi_AfsFixedMaturitySecuritiesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AfsFixedMaturitySecuritiesMember" xlink:to="sigi_AfsFixedMaturitySecuritiesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AfsFixedMaturitySecuritiesMember_lbl" xml:lang="en-US">For an unclassified balance sheet, total of debt securities categorized neither as held-to-maturity nor trading. Such securities are reported at fair value; unrealized gains and losses of such securities are excluded from earnings and included in other comprehensive income, a separate component of shareholders' equity, unless the available-for-sale security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain or loss of an available-for-sale security that is designated as being hedged in a fair value hedge shall be recognized in earnings during the period of the hedge, as should other than temporary declines in fair value below costs basis.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AfsFixedMaturitySecuritiesMember_lbl" xml:lang="en-US">AFS Fixed Maturity Securities [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis" xlink:label="us-gaap_ScheduleOfAvailableForSaleSecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfAvailableForSaleSecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis" xlink:to="us-gaap_ScheduleOfAvailableForSaleSecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfAvailableForSaleSecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis_lbl" xml:lang="en-US">Schedule of Available-for-sale Securities, Major Types of Debt and Equity Securities [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:label="us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:to="us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_lbl" xml:lang="en-US">Major Types of Debt and Equity Securities [Domain]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfFairValueAndGrossPreTaxUnrealizedUnrecognizedLossOfSecuritiesByLengthOfTimeAxis" xlink:label="sigi_ScheduleOfFairValueAndGrossPreTaxUnrealizedUnrecognizedLossOfSecuritiesByLengthOfTimeAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfFairValueAndGrossPreTaxUnrealizedUnrecognizedLossOfSecuritiesByLengthOfTimeAxis" xlink:to="sigi_ScheduleOfFairValueAndGrossPreTaxUnrealizedUnrecognizedLossOfSecuritiesByLengthOfTimeAxis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfFairValueAndGrossPreTaxUnrealizedUnrecognizedLossOfSecuritiesByLengthOfTimeAxis_lbl" xml:lang="en-US">This element represents the types of investments in an unrealized/unrecognized loss position by category.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfFairValueAndGrossPreTaxUnrealizedUnrecognizedLossOfSecuritiesByLengthOfTimeAxis_lbl" xml:lang="en-US">Schedule of Fair Value and Gross Pre Tax Unrealized Unrecognized Loss of Securities By Length of Time [Axis]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfFairValueAndGrossPreTaxUnrealizedUnrecognizedLossOfSecuritiesByLengthOfTimeDomain" xlink:label="sigi_ScheduleOfFairValueAndGrossPreTaxUnrealizedUnrecognizedLossOfSecuritiesByLengthOfTimeDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfFairValueAndGrossPreTaxUnrealizedUnrecognizedLossOfSecuritiesByLengthOfTimeDomain" xlink:to="sigi_ScheduleOfFairValueAndGrossPreTaxUnrealizedUnrecognizedLossOfSecuritiesByLengthOfTimeDomain_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfFairValueAndGrossPreTaxUnrealizedUnrecognizedLossOfSecuritiesByLengthOfTimeDomain_lbl" xml:lang="en-US">Provides general categories of securities that are in a continuous loss position.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfFairValueAndGrossPreTaxUnrealizedUnrecognizedLossOfSecuritiesByLengthOfTimeDomain_lbl" xml:lang="en-US">Schedule of Fair Value and Gross Pre Tax Unrealized Unrecognized Loss of Securities By Length of Time [Domain]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_SecuritiesWhichHaveExperiencedShortfallInInterestPaymentsMember" xlink:label="sigi_SecuritiesWhichHaveExperiencedShortfallInInterestPaymentsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_SecuritiesWhichHaveExperiencedShortfallInInterestPaymentsMember" xlink:to="sigi_SecuritiesWhichHaveExperiencedShortfallInInterestPaymentsMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_SecuritiesWhichHaveExperiencedShortfallInInterestPaymentsMember_lbl" xml:lang="en-US">This item represents securities that have experienced a shortfall in interest payments [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_SecuritiesWhichHaveExperiencedShortfallInInterestPaymentsMember_lbl" xml:lang="en-US">Securities Which Have Experienced A Shortfall In Interest Payments [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_VentureCapitalMember" xlink:label="sigi_VentureCapitalMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_VentureCapitalMember" xlink:to="sigi_VentureCapitalMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_VentureCapitalMember_lbl" xml:lang="en-US">This strategy includes venture capital investments made principally by investing in equity securities of privately held corporations, for long-term capital appreciation.  This strategy also makes private equity investments in growth equity and buyout partnerships.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_VentureCapitalMember_lbl" xml:lang="en-US">Venture Capital [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_OtherSecuritiesMember" xlink:label="sigi_OtherSecuritiesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_OtherSecuritiesMember" xlink:to="sigi_OtherSecuritiesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_OtherSecuritiesMember_lbl" xml:lang="en-US">This represents all other other securities not otherwise specified.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_OtherSecuritiesMember_lbl" xml:lang="en-US">Other Securities [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_OtherInvestmentsMember" xlink:label="sigi_OtherInvestmentsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_OtherInvestmentsMember" xlink:to="sigi_OtherInvestmentsMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_OtherInvestmentsMember_lbl" xml:lang="en-US">Other investments not otherwise specified in the taxonomy.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_OtherInvestmentsMember_lbl" xml:lang="en-US">Other Investments [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_AlternativeInvestmentsMember" xlink:label="sigi_AlternativeInvestmentsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_AlternativeInvestmentsMember" xlink:to="sigi_AlternativeInvestmentsMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_AlternativeInvestmentsMember_lbl" xml:lang="en-US">Investments primarily in limited partnerships which are accounted for under the equity method.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_AlternativeInvestmentsMember_lbl" xml:lang="en-US">Alternative Investments [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="sigi_AlternativeInvestmentsMember_lbl" xml:lang="en-US">Total Alternative Investments</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfInvestmentIncomeAmountsByCategoryAxis" xlink:label="sigi_ScheduleOfInvestmentIncomeAmountsByCategoryAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfInvestmentIncomeAmountsByCategoryAxis" xlink:to="sigi_ScheduleOfInvestmentIncomeAmountsByCategoryAxis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfInvestmentIncomeAmountsByCategoryAxis_lbl" xml:lang="en-US">This element represents the categories of net investment income derived from securities and other investments including dividends on equity securities, interest on debt securities and short-term investments, and gains (losses) on other investments. This item does not include realized gains (losses) or unrealized gains (losses) on holdings of available-for-sale or held-to-maturity.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfInvestmentIncomeAmountsByCategoryAxis_lbl" xml:lang="en-US">Schedule Of Investment Income Amounts By Category [Axis]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ScheduleOfInvestmentIncomeAmountsByCategoryDomain" xlink:label="sigi_ScheduleOfInvestmentIncomeAmountsByCategoryDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ScheduleOfInvestmentIncomeAmountsByCategoryDomain" xlink:to="sigi_ScheduleOfInvestmentIncomeAmountsByCategoryDomain_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ScheduleOfInvestmentIncomeAmountsByCategoryDomain_lbl" xml:lang="en-US">Represents the categories of net investment income derived from securities and other investments including dividends on equity securities, interest on debt securities and short-term investments, and gains (losses) on other investments. This item does not include realized gains (losses) or unrealized gains (losses) on holdings of available-for-sale or held-to-maturity.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ScheduleOfInvestmentIncomeAmountsByCategoryDomain_lbl" xml:lang="en-US">Schedule Of Investment Income Amounts By Category [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FixedMaturitiesMember" xlink:label="us-gaap_FixedMaturitiesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FixedMaturitiesMember" xlink:to="us-gaap_FixedMaturitiesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FixedMaturitiesMember_lbl" xml:lang="en-US">Fixed Maturity Securities [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShortTermInvestmentsMember" xlink:label="us-gaap_ShortTermInvestmentsMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShortTermInvestmentsMember" xlink:to="us-gaap_ShortTermInvestmentsMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShortTermInvestmentsMember_lbl" xml:lang="en-US">Short-term Investments [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_InvestmentExpensesMember" xlink:label="sigi_InvestmentExpensesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_InvestmentExpensesMember" xlink:to="sigi_InvestmentExpensesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_InvestmentExpensesMember_lbl" xml:lang="en-US">This represents expenses incurred in connection with fund investing and obtaining investment income.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_InvestmentExpensesMember_lbl" xml:lang="en-US">Investment Expenses [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis" xlink:label="us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis" xlink:to="us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_lbl" xml:lang="en-US">Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueDisclosureItemAmountsDomain" xlink:label="us-gaap_FairValueDisclosureItemAmountsDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueDisclosureItemAmountsDomain" xlink:to="us-gaap_FairValueDisclosureItemAmountsDomain_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueDisclosureItemAmountsDomain_lbl" xml:lang="en-US">Fair Value, Disclosure Item Amounts [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember" xlink:label="us-gaap_CarryingReportedAmountFairValueDisclosureMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CarryingReportedAmountFairValueDisclosureMember" xlink:to="us-gaap_CarryingReportedAmountFairValueDisclosureMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CarryingReportedAmountFairValueDisclosureMember_lbl" xml:lang="en-US">Carrying Amount [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_SevenPointTwentyFivePercentSeniorNotesMember" xlink:label="sigi_SevenPointTwentyFivePercentSeniorNotesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_SevenPointTwentyFivePercentSeniorNotesMember" xlink:to="sigi_SevenPointTwentyFivePercentSeniorNotesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_SevenPointTwentyFivePercentSeniorNotesMember_lbl" xml:lang="en-US">This item represents the 7.25% Senior Notes of the company due 2034.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_SevenPointTwentyFivePercentSeniorNotesMember_lbl" xml:lang="en-US">Seven Point Twenty Five Percent Senior Notes [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_SixPointSeventyPercentSeniorNotesMember" xlink:label="sigi_SixPointSeventyPercentSeniorNotesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_SixPointSeventyPercentSeniorNotesMember" xlink:to="sigi_SixPointSeventyPercentSeniorNotesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_SixPointSeventyPercentSeniorNotesMember_lbl" xml:lang="en-US">This item represents the 6.70% Senior Notes of the company due 2035.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_SixPointSeventyPercentSeniorNotesMember_lbl" xml:lang="en-US">Six Point Seventy Percent Senior Notes [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_SevenPointFiftyPercentJuniorNotesMember" xlink:label="sigi_SevenPointFiftyPercentJuniorNotesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_SevenPointFiftyPercentJuniorNotesMember" xlink:to="sigi_SevenPointFiftyPercentJuniorNotesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_SevenPointFiftyPercentJuniorNotesMember_lbl" xml:lang="en-US">This item represents the 7.50% Junior Notes of the company due 2066.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_SevenPointFiftyPercentJuniorNotesMember_lbl" xml:lang="en-US">Seven Point Fifty Percent Junior Notes [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_FairValueByAssetClassAxis" xlink:label="sigi_FairValueByAssetClassAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FairValueByAssetClassAxis" xlink:to="sigi_FairValueByAssetClassAxis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_FairValueByAssetClassAxis_lbl" xml:lang="en-US">Fair value information by class of asset.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_FairValueByAssetClassAxis_lbl" xml:lang="en-US">Fair Value By Asset Class [Axis]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:label="sigi_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:to="sigi_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_lbl" xml:lang="en-US">Represents classes of assets measured and disclosed at fair value.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_lbl" xml:lang="en-US">Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation By Asset Class [Domain]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_ReceivableForProceedsFromDivestitureOfBusinessesMember" xlink:label="sigi_ReceivableForProceedsFromDivestitureOfBusinessesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_ReceivableForProceedsFromDivestitureOfBusinessesMember" xlink:to="sigi_ReceivableForProceedsFromDivestitureOfBusinessesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_ReceivableForProceedsFromDivestitureOfBusinessesMember_lbl" xml:lang="en-US">The estimated proceeds associated with the sale of a subsidiary, net of payments received.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_ReceivableForProceedsFromDivestitureOfBusinessesMember_lbl" xml:lang="en-US">Receivable For Proceeds From Divestiture Of Businesses [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_GeneralLiabilityMember" xlink:label="us-gaap_GeneralLiabilityMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GeneralLiabilityMember" xlink:to="us-gaap_GeneralLiabilityMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GeneralLiabilityMember_lbl" xml:lang="en-US">General Liability [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CommercialLinesMember" xlink:label="us-gaap_CommercialLinesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommercialLinesMember" xlink:to="us-gaap_CommercialLinesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommercialLinesMember_lbl" xml:lang="en-US">Commercial Property [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_BusinessOwnersPolicyMember" xlink:label="sigi_BusinessOwnersPolicyMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_BusinessOwnersPolicyMember" xlink:to="sigi_BusinessOwnersPolicyMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_BusinessOwnersPolicyMember_lbl" xml:lang="en-US">Represents insurance coverage provided for business owners' policies.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_BusinessOwnersPolicyMember_lbl" xml:lang="en-US">Business Owners Policy [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_BondsSegmentMember" xlink:label="sigi_BondsSegmentMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_BondsSegmentMember" xlink:to="sigi_BondsSegmentMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_BondsSegmentMember_lbl" xml:lang="en-US">Represents insurance policies that provide guarantees of performance (such as bond repayment).</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_BondsSegmentMember_lbl" xml:lang="en-US">Bonds Segment [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_OtherCommercialMember" xlink:label="sigi_OtherCommercialMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_OtherCommercialMember" xlink:to="sigi_OtherCommercialMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_OtherCommercialMember_lbl" xml:lang="en-US">Represents insurance coverage provided to policy holders on other commercial line policies.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_OtherCommercialMember_lbl" xml:lang="en-US">Other Commercial [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_TotalCommercialLinesMember" xlink:label="sigi_TotalCommercialLinesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_TotalCommercialLinesMember" xlink:to="sigi_TotalCommercialLinesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_TotalCommercialLinesMember_lbl" xml:lang="en-US">Represents total commercial property and casualty coverage on the entity's commercial lines of business.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_TotalCommercialLinesMember_lbl" xml:lang="en-US">Total Commercial Lines [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_PersonalAutomobileMember" xlink:label="sigi_PersonalAutomobileMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_PersonalAutomobileMember" xlink:to="sigi_PersonalAutomobileMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_PersonalAutomobileMember_lbl" xml:lang="en-US">Represents insurance coverage provided to policy holders on personal automobiles.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_PersonalAutomobileMember_lbl" xml:lang="en-US">Personal Automobile [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_HomeownersMember" xlink:label="sigi_HomeownersMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_HomeownersMember" xlink:to="sigi_HomeownersMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_HomeownersMember_lbl" xml:lang="en-US">Represents insurance coverage provided to policy holders on dwellings.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_HomeownersMember_lbl" xml:lang="en-US">Homeowners [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_OtherPersonalMember" xlink:label="sigi_OtherPersonalMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_OtherPersonalMember" xlink:to="sigi_OtherPersonalMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_OtherPersonalMember_lbl" xml:lang="en-US">Represents insurance coverage provided to policy holders on other personal line policies.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_OtherPersonalMember_lbl" xml:lang="en-US">Other Personal [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PersonalLinesMember" xlink:label="us-gaap_PersonalLinesMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PersonalLinesMember" xlink:to="us-gaap_PersonalLinesMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PersonalLinesMember_lbl" xml:lang="en-US">Total Personal Lines [Member]</label>
    <loc xlink:type="locator" xlink:href="sigi-20110630.xsd#sigi_MiscellaneousIncomeMember" xlink:label="sigi_MiscellaneousIncomeMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="sigi_MiscellaneousIncomeMember" xlink:to="sigi_MiscellaneousIncomeMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="sigi_MiscellaneousIncomeMember_lbl" xml:lang="en-US">Reflects the sum of all insurance related revenue, outside of net premiums earned, in the period not otherwise specified.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="sigi_MiscellaneousIncomeMember_lbl" xml:lang="en-US">Miscellaneous Income [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherIncomeMember" xlink:label="us-gaap_OtherIncomeMember" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherIncomeMember" xlink:to="us-gaap_OtherIncomeMember_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherIncomeMember_lbl" xml:lang="en-US">Other Income [Member]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SegmentReportingInformationBySegmentAxis" xlink:label="us-gaap_SegmentReportingInformationBySegmentAxis" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SegmentReportingInformationBySegmentAxis" xlink:to="us-gaap_SegmentReportingInformationBySegmentAxis_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SegmentReportingInformationBySegmentAxis_lbl" xml:lang="en-US">Segment Reporting Information, by Segment [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ReportingSegmentDomain" xlink:label="us-gaap_ReportingSegmentDomain" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ReportingSegmentDomain" xlink:to="us-gaap_ReportingSegmentDomain_lbl" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ReportingSegmentDomain_lbl" xml:lang="en-US">Reporting Segment [Domain]</label>
  </labelLink>
</linkbase>
