The AE-CJ40 series AC contactor (hereinafter referred to as the conta ctor) is suitable for connecting and breaking circuits in power system s with AC 50Hz (or 60Hz), rated voltage up to 660V or 1140V, and rated c urrent up to 1000A. It can be combined with appropriate thermal relays or electronic protection devices to form an electric motor starter to protect circuits that may experience overload.