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    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001205075</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


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    <issuerInfo>
      <issuerCik>0000080420</issuerCik>
      <issuerName>POWELL INDUSTRIES INC</issuerName>
      <secFileNumber>001-12488</secFileNumber>
      <issuerAddress>
        <com:street1>8550 MOSLEY DR</com:street1>
        <com:street2>POST OFFICE BOX 12818</com:street2>
        <com:city>HOUSTON</com:city>
        <com:stateOrCountry>TX</com:stateOrCountry>
        <com:zipCode>77075</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>7139446900</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>HONEYCUTT MILBURN E</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Fidelity Brokerage Services LLC</name>
        <address>
          <com:street1>245 Summer Street</com:street1>
          <com:city>Boston</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>02110</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>12000</noOfUnitsSold>
      <aggregateMarketValue>1010160.00</aggregateMarketValue>
      <noOfUnitsOutstanding>11860583</noOfUnitsOutstanding>
      <approxSaleDate>08/04/2023</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>12/08/2008</acquiredDate>
      <natureOfAcquisitionTransaction>Compensation</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>6000</amountOfSecuritiesAcquired>
      <paymentDate>12/08/2008</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>07/01/2015</acquiredDate>
      <natureOfAcquisitionTransaction>Compensation</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>6000</amountOfSecuritiesAcquired>
      <paymentDate>07/01/2015</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>08/04/2023</noticeDate>
      <signature>/s/ Cristina Garcia, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for HONEYCUTT MILBURN E</signature>
    </noticeSignature>
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144
0001205075
XXXXXXXX
LIVE
0000080420
POWELL INDUSTRIES INC
001-12488
8550 MOSLEY DR
POST OFFICE BOX 12818
HOUSTON
TX
77075
7139446900
HONEYCUTT MILBURN E
Officer
Common
Fidelity Brokerage Services LLC
245 Summer Street
Boston
MA
02110
12000
1010160.00
11860583
08/04/2023
NASDAQ
Common
12/08/2008
Compensation
Issuer
N
6000
12/08/2008
Compensation
Common
07/01/2015
Compensation
Issuer
N
6000
07/01/2015
Compensation
Y
08/04/2023
/s/ Cristina Garcia, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for HONEYCUTT MILBURN E