GSC2-1000/3~1250/3 3P AC contactor, suitable for AC 50Hz or 60Hz, rated working voltage is 690V, rated working current up to 1250A, in AC-3 service class rated working voltage up is 380V, rated working current up to 1250A，in AC-1 service class，rated working voltage is 690V, rated working current up to 1650A，for remote connection and breaking circuit.