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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 SgJtxIQipSiDj27mIytsocn7aYIl/znP7MoewzK+2WGy5nePLqUbToEqIGvdNG9+
 OswI60ryLsSOK1J6WYIKRA==

<SEC-DOCUMENT>0001179110-07-003844.txt : 20070214
<SEC-HEADER>0001179110-07-003844.hdr.sgml : 20070214
<ACCEPTANCE-DATETIME>20070214194756
ACCESSION NUMBER:		0001179110-07-003844
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070103
FILED AS OF DATE:		20070214
DATE AS OF CHANGE:		20070214

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Canterna Don Louis SR
		CENTRAL INDEX KEY:			0001337763

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-06948
		FILM NUMBER:		07624819

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		2622488556

	MAIL ADDRESS:	
		STREET 1:		W1925 BRIAR RIDGE
		CITY:			LAKE GENEVA
		STATE:			WI
		ZIP:			53147

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SPX CORP
		CENTRAL INDEX KEY:			0000088205
		STANDARD INDUSTRIAL CLASSIFICATION:	METALWORKING MACHINERY & EQUIPMENT [3540]
		IRS NUMBER:				381016240
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		13515 BALLANTYNE CORPORATE PLACE
		CITY:			CHARLOTTE
		STATE:			NC
		ZIP:			28277
		BUSINESS PHONE:		704-752-4400

	MAIL ADDRESS:	
		STREET 1:		13515 BALLANTYNE CORPORATE PLACE
		CITY:			CHARLOTTE
		STATE:			NC
		ZIP:			28277

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SEALED POWER CORP
		DATE OF NAME CHANGE:	19880515
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4 -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-01-03</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000088205</issuerCik>
        <issuerName>SPX CORP</issuerName>
        <issuerTradingSymbol>SPW</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001337763</rptOwnerCik>
            <rptOwnerName>Canterna Don Louis SR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>SPX PROCESS EQUIPMENT</rptOwnerStreet1>
            <rptOwnerStreet2>611 SUGAR CREEK ROAD</rptOwnerStreet2>
            <rptOwnerCity>DELAVAN</rptOwnerCity>
            <rptOwnerState>WI</rptOwnerState>
            <rptOwnerZipCode>53115</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Segment President</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2007-01-03</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>5</transactionFormType>
                <transactionCode>L</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F4"/>
            </transactionCoding>
            <transactionTimeliness>
                <value>E</value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>7.0133</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>61.43</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>51977.5385</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>744</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>401(k) Plan</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Employee stock option to purchase common stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>69.43</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2005-01-02</value>
            </exerciseDate>
            <expirationDate>
                <value>2012-01-01</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>24000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>24000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Employee stock option to purchase common stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>38.57</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2005-01-02</value>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2013-01-01</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>14000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>14000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Granted under the SPX Corporation 2002 Stock Compensation Plan.</footnote>
        <footnote id="F2">Option vested as to 6,000 shares on 1/2/2005 and 8,000 shares on 1/2/2006.</footnote>
        <footnote id="F3">Includes unvested restricted stock units.</footnote>
        <footnote id="F4">Acquired pursuant to broker-sponsored dividend reinvestment plan.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Brian Webb, Attorney In Fact for Don Canterna</signatureName>
        <signatureDate>2007-02-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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