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BS 4794-2.3 + 2.4

1977 Edition, October 31, 1977

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Control Switches (Switching Devices, Including Contactor Relays, for Controland Auxiliary Circuits for Voltages up to and Including 1000 V a.c and 1200 V d.c. Part 2: Special Requirements for Specific Types of Control Switches Section 2.3: Contactor Relays Section 2.4: Pilot Switches

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Superseded By: BS EN 60947-5-1

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W/D S/S BY BS EN 60947-5-1
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Additional specific requirements for contactor relays and pilot switches (pressure switches, level switches, time switches, thermostats, etc).