BS 4794-2.3&2.4(1977) : LATEST
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
SPECIFICATION FOR CONTROL SWITCHES SWITCHING DEVICES INCLUDING CONTACTOR RELAYS FOR CONTROL & AUXILIARY CIRCUITS FOR VOLTAGES UP TO & INCL 1000V A.C. 1200V D.C. CONTACTOR RELAYS PILOT SWITCHES
08-31-1992
11-23-2012
Applies to contactor relays, including time-delay contactor relays. Provides additional requirements, not found in IEC Publication 337-1, Control Switches, Part 1: General Requirements, or in IEC Publication 158-1, Low-voltage Controlgear, Part 1: Contactors. Includes definitions and terms useful in stating desired properties of design or performance.
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