NC2 series AC contactor (hereinafter referred to as contactor), mainly used for AC 50Hz or 60Hz, rated working voltage to 690V, rated working current to 800A, for long-distance connection and breaking circuit, and appropriate The thermal overload relays constitute an electromagnetic starter to protect circuits that may experience operational overload. Meet the standards: GB/T 14048.4, IEC/EN 60947-4-1.