CJX2-F(LCl-F) series AC contactor(the followings are called contactor), it is used in 50Hz or 60Hz, ifit is allocated with special coil. Which can be used in the circuit of 40-400Hz, voltaqe up to 660v, current up to less than 630A and be used for putting through and breaking the main circuit and also for frequently starting and controlling motor. It can unify the general electrical equipment stch as all kinds of relay, which can used for controlling all kinds of electrical equipment, motor and circuit. The auxiliary contact group. Air time-delay head. Mechanical interlock contactor and star-triangle starter. The thermo-relay and itcan form the magnetic.