DS DS/EN 60309-1/A2
DS DSEN 60309-1A2 2012-OCT-10 Plugs socket-outlets and couplers for ndustral purposes - Part 1 General requrements
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Applies to plugs and socket-outlets, cable couplers and appliance couplers, with a rated operating voltage not exceeding 690 V d.c. or a.c, 500 Hz a.c. and a rated current not exceeding 250 A, primarily intended for industrial use, either indoors or outdoors when the ambient temperature does not normally exceed 40°C.