Energy-saving AC contactor

The utility model discloses an energy saving AC contactor. A set of electromagnet mechanism is added on the basis of an original AC contactor. The electromagnet mechanism is composed of a movable iron core, an actuating coil of the movable iron core, a return spring of the movable iron core, a close plug of a main contact of the movable iron core, etc. A main contact closing socket is arranged on one corresponding side of a connecting body near the main contact closing plug, a control circuit board is arranged in the casing of the contactor, and a control circuit is arranged on the control circuit board. The utility model can save a large quantity of energy, prolong the service life of a sucking coil and save large amount of enameled wire. The iron core of the sucking coil can be made of cast iron or cast steel, and large quantity of silicon steel pieces can be saved. In addition, the utility model has the performance of the under voltage protection of controlled electrical equipment.