<SEC-DOCUMENT>0000080420-24-000064.txt : 20240829
<SEC-HEADER>0000080420-24-000064.hdr.sgml : 20240829
<ACCEPTANCE-DATETIME>20240829170921
ACCESSION NUMBER:		0000080420-24-000064
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20240827
FILED AS OF DATE:		20240829
DATE AS OF CHANGE:		20240829

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			McGill James W
		CENTRAL INDEX KEY:			0001299345
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12488
		FILM NUMBER:		241264708

	MAIL ADDRESS:	
		STREET 1:		8550 MOSLEY ROAD
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77075

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			POWELL INDUSTRIES INC
		CENTRAL INDEX KEY:			0000080420
		STANDARD INDUSTRIAL CLASSIFICATION:	SWITCHGEAR & SWITCHBOARD APPARATUS [3613]
		ORGANIZATION NAME:           	04 Manufacturing
		IRS NUMBER:				880106100
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		8550 MOSLEY DR
		STREET 2:		POST OFFICE BOX 12818
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77075
		BUSINESS PHONE:		7139446900

	MAIL ADDRESS:	
		STREET 1:		8550 MOSLEY DRIVE P O BOX 12818
		STREET 2:		8550 MOSLEY DRIVE P O BOX 12818
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77075

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PROCESS SYSTEMS INC
		DATE OF NAME CHANGE:	19780926
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wk-form4_1724965754.xml
<DESCRIPTION>FORM 4
<TEXT>
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<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2024-08-27</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000080420</issuerCik>
        <issuerName>POWELL INDUSTRIES INC</issuerName>
        <issuerTradingSymbol>POWL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001299345</rptOwnerCik>
            <rptOwnerName>McGill James W</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>8550 MOSLEY ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77075</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2024-08-27</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2024-08-27</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1831</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>183.22</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>14429</value>
                    <footnoteId id="F3"/>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
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                <value>2024-08-27</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
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                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>455</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>184.02</value>
                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>13974</value>
                    <footnoteId id="F3"/>
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            <ownershipNature>
                <directOrIndirectOwnership>
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                </directOrIndirectOwnership>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2024-08-27</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2024-08-27</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
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                    <value>1315</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>185.77</value>
                    <footnoteId id="F5"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>12659</value>
                    <footnoteId id="F3"/>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2024-08-27</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2024-08-27</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1300</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>187.14</value>
                    <footnoteId id="F6"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>11359</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2024-08-27</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2024-08-27</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1589</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>188.19</value>
                    <footnoteId id="F7"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>9770</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2024-08-27</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2024-08-27</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>110</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>188.46</value>
                    <footnoteId id="F8"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>9660</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Represents number of shares sold at the average reporting range.</footnote>
        <footnote id="F2">Price in this column represents the average price of the reporting range.  Shares were sold in multiple transactions with a reporting range of $182.70-183.67, inclusive.  Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities &amp; Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.</footnote>
        <footnote id="F3">Includes shares that have a time-based vesting provision.</footnote>
        <footnote id="F4">Price in this column represents the average price of the reporting range.  Shares were sold in multiple transactions with a reporting range of $183.75-184.19, inclusive.  Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities &amp; Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.</footnote>
        <footnote id="F5">Price in this column represents the average price of the reporting range.  Shares were sold in multiple transactions with a reporting range of $185.00-186.00, inclusive.  Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities &amp; Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.</footnote>
        <footnote id="F6">Price in this column represents the average price of the reporting range.  Shares were sold in multiple transactions with a reporting range of $186.44-187.35, inclusive.  Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities &amp; Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.</footnote>
        <footnote id="F7">Price in this column represents the average price of the reporting range.  Shares were sold in multiple transactions with a reporting range of $187.45-188.43, inclusive.  Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities &amp; Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.</footnote>
        <footnote id="F8">Price in this column represents the average price of the reporting range.  Shares were sold in multiple transactions with a reporting range of $188.46-188.57, inclusive.  Reporting person, upon request, will provide Powell Industries, Inc. or the staff of the Securities &amp; Exchange Commission full information regarding the number of shares sold at each price within the ranges set for in this footnote.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Michael W. Metcalf, Power of Attorney for James W. McGill</signatureName>
        <signatureDate>2024-08-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
