    <SEC-DOCUMENT>0001140361-21-000306-index.html : 20210106
    <SEC-HEADER>0001140361-21-000306.hdr.sgml : 20210106
    <ACCEPTANCE-DATETIME>20210106090026
    ACCESSION NUMBER:		0001140361-21-000306
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		3
    CONFORMED PERIOD OF REPORT:	20210217
    FILED AS OF DATE:		20210106
    DATE AS OF CHANGE:		20210106
    EFFECTIVENESS DATE:		20210106

    FILER:

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

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-12488
    		FILM NUMBER:		21509130

    	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>DEF 14A
    <SEQUENCE>1
    <FILENAME>nc10017750x1_def14a.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: nc10017750x1_def14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>nc10017750x1_pc01.jpg
    <TEXT>
    Document 2 - file: nc10017750x1_pc01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>nc10017750x1_pc02.jpg
    <TEXT>
    Document 3 - file: nc10017750x1_pc02.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>