Alternating current contactor having symmetric iron core group

The utility model discloses an alternating current contactor having a symmetric iron core group. The alternating current contactor comprises a pedestal and a fixed support rack, the pedestal and the fixed support rack are assembled together, a yoke iron piece is mounted in the pedestal, a movable support rack and an armature are mounted in the fixed support rack, a wire coil group is mounted on the yoke iron piece, a return spring is mounted between the yoke iron piece and the armature, the shape of the yoke iron piece is symmetric to the shape of the armature, one end of each of the yoke iron piece and the armature is connected with a short circuit ring, a static contact head is mounted on the fixed support rack, a moving contact head is mounted on the movable support rack, and a contact head spring is mounted on the movable support rack. According to the alternating current contactor, design that the yoke iron piece and the armature in the iron core group are the same is adopted, one short circuit ring is r