BCH8 manual Modular Contactor, is mainly applied to comunicate 50Hz/60Hz, rated working voltage up to 400V.In the power system with rated working current of up 100A, AC-1 and AC-7a (non-inductance or low inductance load, resistance furnace, household appliances and similar low inductance load) can be used as long-distance switch and control circuit, and can also be used to control the load of household motor.