CJX2 series AC contactor (hereinafter referred to as contactor), mainly used for AC 50Hz or60Hz rated working voltage to 660V, rated working current from 9 to 95A in the AC-3 categoryof rated working voltage to 380V, for long-distance connecting and breaking the circuit, anosuitable for frequent start and control of AC motor.The contactor and the thermal relay can be connected to form an electromagnetic starter, ifthe air delay head can be added to form a delay contactor, in addition, the number of auxiliarycontacts can be increased, and an auxiliary contact group can be added. A reversiblecontactor or a star triangle starter can also be assembled by adding a mechanical interlockingmechanism between two contactors of the same model.