BS 4794-1:1979
Date published:
Specification for control switches (switching devices, including contactor relays, for control and auxiliary circuits, for voltages up to and including 1000 V a.c. and 1200 V d.c.), General requirements
General requirements for control switches (e.g. push-buttons, rotary switches, foot switches, contactor relays, pressure switches, thermostats, programmers, limit switches) used in control circuits or auxiliary circuits of switchgear and contgrolgear. Includes requirements for control switches having a positive opening operation.
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29.130.20 Low voltage switchgear and controlgear
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BS 4794-1:1979
Get this standard
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