CJX2 AC contactor is mainly used in a circuit of AC 50Hz or 60Hz, rated working voltage up to 660V and rated working current up to 95A. It is used to remotely close or/and to switch off the circuit. Connected with a thermal relay, it can form an electromagnet starter to protect a circuit in which overload running may occur. If assembled with building block type auxiliary contact set, air time-delayelement or mechanic interlock, it can form time delay contact, reversiblecontactor and star-delta (Y-) starter.