APPLICATION The RCD is in conformity with the standards of IEC1008, GB16916 and BS EN61008. The RCD can cut off the fault circuit immediately on the occasion of shock hazard or earth leakage of trunk, thus it is suitable to avoid the shock hazard and fire caused by earth leakage The RCD is mainly suitable for using in variety of plants and enterprises, building construction, commerce, guesthouses and families. It can be used in circuits up to single phase 230V, three phases 400V 50 to 60HZ, RCD is not suitable for using on DC pulse system. TECHNICAL DATA: Standard: IE1008, GB16916, BS EN61008 Rated voltage (Un): 2poles: 230V AC 4poles: 400V AC Rated current (In): 25, 40, 63A Rated residual operating current(I △no):0.5I△n Residual current off-time:≤0.1s Minimum ＆#118alue of rated making and breaking capacity (Im): 1KA Rated conditional short-circuit current (Inc): In=25, 40A Inc=1500A In=63A Inc=3000A Endurance: on load: 200 cycles Off load: 2000cycles If you are interested,please feel free to contact us.