NEMA-AB1 › Complete Document History
Circuit Breakers, Molded-Case, Molded Case Switches, and Circuit-Breaker Enclosures


Obsolete Revision Information:
   ADOPT WITHDRAWN - FYI ONLY: DOD ADOPTION WITHDRAWN - April 25, 2012
   DOD ADOPTION 1 - FYI ONLY: DOD ADOPTED - Sept. 9, 2004
   2002 EDITION - MOLDED-CASE CIRCUIT BREAKERS, - Jan. 1, 2002
   1999 EDITION - MOLDED-CASE CIRCUIT BREAKERS, - Jan. 1, 1999
   1993 EDITION - UL - 489 - Jan. 1, 1993
   FOR 1986 EDITION SEE - UL-489 - Jan. 12, 1986