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BS 764

90th Edition, May 31, 1990

Complete Document

Specification for Automatic Change-Over Contactors for Emergency Lighting Systems

Includes all amendments and changes through Reaffirmation Notice , May 1, 2017

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Product Details:

  • Revision: 90th Edition, May 31, 1990
  • Published Date: May 1, 2017
  • Status: Active, Most Current
  • Document Language: English
  • Published By: British Standards Institution (BSI)
  • Page Count: 14
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

Design and performance requirements for d.c. and single-phase a.c. double-pole change-over contactors for low-voltages up to 250 volts and a range of standard current ratings, which are used to provide the automatic transfer of current supplied to safety