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          <ccc>XXXXXXXX</ccc>
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      <liveTestFlag>LIVE</liveTestFlag>



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      <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>POWELL THOMAS W</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>10% Stockholder</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Charles Schwab Corporation</name>
        <address>
          <com:street1>3000 Schwab Way</com:street1>
          <com:city>Westlake</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>76262</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>50000</noOfUnitsSold>
      <aggregateMarketValue>7641500.00</aggregateMarketValue>
      <noOfUnitsOutstanding>11967718</noOfUnitsOutstanding>
      <approxSaleDate>02/21/2024</approxSaleDate>
      <securitiesExchangeName>Nasdaq</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>01/01/1970</acquiredDate>
      <natureOfAcquisitionTransaction>Founders Shares</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>50000</amountOfSecuritiesAcquired>
      <paymentDate>01/01/1970</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>TWP Holdings</name>
        <address>
          <com:street1>PO Box 300</com:street1>
          <com:city>Giddings</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>78942</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>12/20/2023</saleDate>
      <amountOfSecuritiesSold>5000</amountOfSecuritiesSold>
      <grossProceeds>475200.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>TWP Holdings</name>
        <address>
          <com:street1>PO Box 300</com:street1>
          <com:city>Giddings</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>78942</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>12/19/2023</saleDate>
      <amountOfSecuritiesSold>5000</amountOfSecuritiesSold>
      <grossProceeds>481787.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>TWP Holdings</name>
        <address>
          <com:street1>PO Box 300</com:street1>
          <com:city>Giddings</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>78942</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>12/18/2023</saleDate>
      <amountOfSecuritiesSold>5000</amountOfSecuritiesSold>
      <grossProceeds>454610.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>TWP Holdings</name>
        <address>
          <com:street1>PO Box 300</com:street1>
          <com:city>Giddings</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>78942</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>12/15/2023</saleDate>
      <amountOfSecuritiesSold>10357</amountOfSecuritiesSold>
      <grossProceeds>945156.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>TWP Holdings</name>
        <address>
          <com:street1>PO Box 300</com:street1>
          <com:city>Giddings</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>78942</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>12/12/2023</saleDate>
      <amountOfSecuritiesSold>4643</amountOfSecuritiesSold>
      <grossProceeds>419913.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>TWP Holdings</name>
        <address>
          <com:street1>PO Box 300</com:street1>
          <com:city>Giddings</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>78942</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>12/11/2023</saleDate>
      <amountOfSecuritiesSold>10000</amountOfSecuritiesSold>
      <grossProceeds>910502.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>TWP Holdings</name>
        <address>
          <com:street1>PO Box 300</com:street1>
          <com:city>Giddings</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>78942</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>12/08/2023</saleDate>
      <amountOfSecuritiesSold>20000</amountOfSecuritiesSold>
      <grossProceeds>1728034.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Thomas Powell</name>
        <address>
          <com:street1>PO Box 300</com:street1>
          <com:city>Giddings</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>78942</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>02/13/2024</saleDate>
      <amountOfSecuritiesSold>3494</amountOfSecuritiesSold>
      <grossProceeds>526998.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Thomas Powell</name>
        <address>
          <com:street1>PO Box 300</com:street1>
          <com:city>Giddings</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>78942</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>02/12/2024</saleDate>
      <amountOfSecuritiesSold>6000</amountOfSecuritiesSold>
      <grossProceeds>908134.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <remarks>TWP Holdings LP, Thomas Powell sole proprietor Table I acquisition and date of payment range: 01/01/1970 through 12/31/1980</remarks>
    <noticeSignature>
      <noticeDate>02/21/2024</noticeDate>
      <signature>Thomas W Powell</signature>
    </noticeSignature>
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144
0001219199
XXXXXXXX
LIVE
0000080420
POWELL INDUSTRIES INC
001-12488
8550 MOSLEY DR
POST OFFICE BOX 12818
HOUSTON
TX
77075
7139446900
POWELL THOMAS W
10% Stockholder
Common
Charles Schwab Corporation
3000 Schwab Way
Westlake
TX
76262
50000
7641500.00
11967718
02/21/2024
Nasdaq
Common
01/01/1970
Founders Shares
Issuer
N
50000
01/01/1970
Cash
N
TWP Holdings
PO Box 300
Giddings
TX
78942
Common
12/20/2023
5000
475200.00
TWP Holdings
PO Box 300
Giddings
TX
78942
Common
12/19/2023
5000
481787.00
TWP Holdings
PO Box 300
Giddings
TX
78942
Common
12/18/2023
5000
454610.00
TWP Holdings
PO Box 300
Giddings
TX
78942
Common
12/15/2023
10357
945156.00
TWP Holdings
PO Box 300
Giddings
TX
78942
Common
12/12/2023
4643
419913.00
TWP Holdings
PO Box 300
Giddings
TX
78942
Common
12/11/2023
10000
910502.00
TWP Holdings
PO Box 300
Giddings
TX
78942
Common
12/08/2023
20000
1728034.00
Thomas Powell
PO Box 300
Giddings
TX
78942
Common
02/13/2024
3494
526998.00
Thomas Powell
PO Box 300
Giddings
TX
78942
Common
02/12/2024
6000
908134.00
TWP Holdings LP, Thomas Powell sole proprietor Table I acquisition and date of payment range: 01/01/1970 through 12/31/1980
02/21/2024
Thomas W Powell