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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13G


                    UNDER THE SECURITIES EXCHANGE ACT OF 1934

                               (AMENDMENT NO. 5)*

                             Powell Industries, Inc.
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                                (Name of Issuer)

                                  Common Stock
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                         (Title of Class of Securities)

                                     739128
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                                 (CUSIP Number)


                                       N/A
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             (Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

         [X]     Rule 13d-1(b)
         [ ]     Rule 13d-1(c)
         [ ]     Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).



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CUSIP NO. 739128                  SCHEDULE 13G                       PAGE 2 OF 6

                                   COVER PAGE
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 1    NAME OF REPORTING PERSONS.
      I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY).

      Klein Bank, as trustee for the Powell Industries, Inc. Employee Stock
      Ownership Trust and the Powell Industries, Inc. Frozen Employee
      Stock Ownership Trust ("Trusts").
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 2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
                                                                         (a) [ ]

                                                                         (b) [ ]
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 3    SEC USE ONLY


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 4    CITIZENSHIP OR PLACE OF ORGANIZATION

      Klein Bank is a banking association organized under the laws of the state
      of Texas. The Trusts are organized under the laws of the State of Texas.
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                               5     SOLE VOTING POWER

          NUMBER OF
                                     0
           SHARES              -------------------------------------------------
                               6     SHARED VOTING POWER
        BENEFICIALLY

          OWNED BY                   702,900
                               ------------------------------------------------
            EACH               7     SOLE DISPOSITIVE POWER

          REPORTING
                                     0
           PERSON              ------------------------------------------------
                               8     SHARED DISPOSITIVE POWER
            WITH:

                                     702,900
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 9    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON


      702,900
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10    CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
      (SEE INSTRUCTIONS)

      Not applicable
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11    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)


      6.6%
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12    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)


      BK, EP
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         The filing of this Statement on Schedule 13G is made by Klein Bank as
trustee ("Trustee") of the Powell Industries, Inc. Employee Stock Ownership
Trust and the Powell Industries, Inc. Frozen Employee Stock Ownership Trust (the
"Plans" or "Trusts") voluntarily and does not constitute, and should not be
construed as, an admission that either the Trusts or the Trustee beneficially
owns any securities covered by this Statement or is required to file this
Statement for the Trusts and the Trustee. In this connection, the Trusts and the
Trustee disclaim beneficial ownership of the securities covered by this
Statement.



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CUSIP NO. 739128                  SCHEDULE 13G                       PAGE 3 OF 6


ITEM 1(a).  NAME OF ISSUER

            Powell Industries, Inc.

ITEM 1(b).  ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES

            8550 Mosley Drive
            Houston, Texas 77075

ITEM 2(a).  NAME OF PERSON FILING

            See Item 1 of Cover Page.

ITEM 2(b).  ADDRESS OF PRINCIPAL BUSINESS OFFICE

            13845 Breck
            Houston, Texas 77066

ITEM 2(c).  CITIZENSHIP OR PLACE OF ORGANIZATION

            See Item 4 of Cover Page.

ITEM 2(d).  TITLE OF CLASS OF SECURITIES

            Common Stock

ITEM 2(e).  CUSIP NUMBER

            739128

ITEM 3.     IF THIS STATEMENT IS FILED PURSUANT TO SECTIONS 240.13D-1(b) OR
            240.13D-2(b) OR (c), CHECK WHETHER THE PERSON FILING IS A:

            (a)  [ ]   Broker or dealer registered under section 15 of the Act.
            (b)  [X]   Bank as defined in section 3(a)(6) of the Act.
            (c)  [ ]   Insurance company as defined in section 3(a)(19) of the
                       Act.
            (d)  [ ]   Investment company registered under section 8 of the
                       Investment Company Act of 1940.
            (e)  [ ]   An investment adviser in accordance with Section
                       240.13d-1(b)(1)(ii)(E);
            (f)  [X]   An employee benefit plan or endowment fund in accordance
                       with Section 240.13d-1(b)(1)(ii)(F);
            (g)  [ ]   A parent holding company or control person in accordance
                       with Section 240.13d-1(b)(1)(ii)(G);


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CUSIP NO. 739128                  SCHEDULE 13G                       PAGE 4 OF 6

            (h)  [ ]   A savings associations as defined in Section 3(b) of the
                       Federal Deposit Insurance Act;

            (i)  [ ]   A church plan that is excluded from the definition of an
                       investment company under section 3(c)(14) of the
                       Investment Company Act of 1940;

            (j)  [ ]   Group, in accordance with Section 240.13d-1(b)(1)(ii)(J).

ITEM 4.     OWNERSHIP.

            (a)  Amount beneficially owned: 702,900

            (b)  Percent of class:  6.6%

            (c)  Number of shares as to which such person has:

                 (i)   Sole power to vote or to direct the vote................0

                 (ii)  Shared power to vote or to direct the vote.....702,900(1)

                 (iii) Sole power to dispose or to direct the disposition of...0

                 (iv)  Shared power to dispose or to direct the
                         disposition of...............................702,900(1)

ITEM 5.     OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS

            Not applicable.


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1    Of such shares, 674,569 are held in the Powell Industries, Inc. Employee
     Stock Ownership Trust and 28,331 shares are held in the Powell Industries,
     Inc. Frozen Employee Stock Ownership Trust. Each participant in either of
     the Trusts or, if applicable, his beneficiary is entitled to direct to the
     Trustee as to the exercise of any voting or tendering rights attributable
     to shares of Common Stock then allocated to his ESOP Account. All allocated
     Common Stock as to which such instructions have been received (which may
     include an instruction to abstain) will be voted in accordance with such
     instructions. However, the Trustee will vote or tender any unallocated
     Common Stock in the Trusts, or any allocated Common Stock as to which no
     voting or tendering instructions have been received, in such manner as
     directed by the Administrative Committees of the respective Plans. As of
     the date hereof, 304,635 shares of Common Stock are allocated to the
     accounts of participants in the Powell Industries, Inc. Employee Stock
     Ownership Trust, and all shares of Common Stock held by the Powell
     Industries, Inc. Frozen Employee Stock Ownership Trust are allocated to
     accounts of participants.

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CUSIP NO. 739128                  SCHEDULE 13G                       PAGE 5 OF 6

ITEM 6.     OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.

            In accordance with the terms of the Plans, participants of the Plans
            are entitled to receive certain distributions of assets held by the
            Trusts. Such distributions may include dividends on or proceeds from
            the sale of shares of Common Stock.

ITEM 7.     IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED
            THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY

            Not applicable.

ITEM 8.     IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP

            Not applicable.

ITEM 9.     NOTICE OF DISSOLUTION OF GROUP

            Not applicable.

ITEM 10.    CERTIFICATION

            By signing below I certify that, to the best of my knowledge and
            belief, the securities referred to above were acquired and are held
            in the ordinary course of business and were not acquired and are not
            held for the purpose of or with the effect of changing or
            influencing the control of the issuer of the securities and were not
            acquired and are not held in connection with or as a participant in
            any transaction having that purpose or effect.



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CUSIP NO. 739128                  SCHEDULE 13G                       PAGE 6 OF 6


                                    SIGNATURE

         After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

                                    Date:  February 14, 2001.

                                    KLEIN BANK, a Texas banking association, as
                                    Trustee of the Powell Industries, Inc.
                                    Employee Stock Ownership Trust and the
                                    Powell Industries, Inc. Frozen Employee
                                    Stock Ownership Trust



                                    By:  /s/  Barry M. Sanders
                                       ----------------------------------------
                                    Name:  Barry M. Sanders
                                    Title: Sr. Vice President/Sr. Trust Officer