LC1-F series AC contactor(the following are called contactor), it is used in 50/60Hz, allocated special with coil. Which can be used in the circuit of 40-400Hz. voltage up to 660V, current up to less than 630A electric circuits. It is main used for putting through and breaking the main cuircuit and also for frequently staring and controlling motor. It can unify the general electrical equipment, motor and circuit. The auxiliary contac group. air time delay head. Mechanical interlock contactor and star-delta starter. The thermal-relay it can form the magnetic starter.