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   Data updated: 24 Feb 2026. Home |  About Quick Search |  ASSIST |  ASSIST Updates Document Details

Document ID:   NEMA-AB1       Scroll down to access document images

Overview
Title:  Circuit Breakers, Molded-Case, Molded Case Switches, and Circuit-Breaker Enclosures (S/S by UL489)
Scope:  The Standards Publication covers single-pole and multipole air circuit breakers which are assembled as an integral unit in a supporting housing of insulating materials and which have a rated voltage up to and including 600 volts alternating current, 250 volts direct current, and a rated interrupting current of more than 1000 amperes.
Status:  Withdrawn Withdrawal Date:  25-APR-2012      
FACR Doc Category:   National Electrical Manufacturers Association (NEMA)  

Responsibilities
Lead Standardization Activity:  YD  Naval Facilities Engineering Command  
  Adopting Activity: YD  Naval Facilities Engineering Command
Coordination:  Limited  
Navy Custodian:  YD   Naval Facilities Engineering Command  

Revision History Click on column headings for a description of column content.
MediaDocument Part DescriptionDist StmtDocument DatePagesSize
Document ImageNotice - WithdrawalA25-APR-201211.8 KB
Document ImageNotice - Adoption, Tier 2A09-SEP-2004143.5 KB

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