3P GMC-40 220VAC 40A Electrical Magnetic Contactor Three Phase For Protect Home Improvement And Electrical EquipmentGMC (LG/LS) Series AC Contactor is suitable for using in the circuits up to the rated voltage 660V AC 50HZ or 60HZ, rated current up to 85A, for making frequently starting & controlling the AC motor Combined with the auxiliary contact block thermal relay machineinterlocking device etc it becomes the delay contactor mechanical interlocking contactor, star-delta starter. With the thermal relay, it is combined into the electromagnetic starter.