BS 4794-2-2.20:1982
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 and auxiliary circuits, for voltages up to and including 1000 V a.c. and 1200 V d.c.) Position switches with positive opening operation
Hardcopy , PDF
01-01-1992
English
31-03-1987
Additional specific requirements for position switches with positive opening operation, used in the safeguarding of machinery.
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