IEC-61811-50 › Complete Document History
Part 50: Sectional Specification - Electromechanical All-Or-Nothing Telecom Relays of ASSE


Obsolete Revision Information:
   REPLACED BY IEC-61811-1 - WITHDRAWN IN 2015 - Jan. 28, 2015
   2ND EDITION - ASSESSED QUALITY, ELECTROMECHA - March 1, 2002
   1ST EDITION - ELECTROMECHANICAL ALL-OR-NOTHI - Sept. 1, 1997