ACTUATOR FOR CONTACTOR

摘要

An actuator for a contactor comprises an electromagnet having a closing coil, a holding coil, fixed cores wound with the closing coil and the holding coil respectively, a movable core provided on one side of the fixed cores, and a yoke. A main contact movable member operates to perform closing or interrupting by attraction or release of the movable core with respect to the fixed core. The actuator has a trip spring, energy-stored during the closing, that performs the interrupting upon stopping energization to the holding coil and thereby releasing the stored-energy. The actuator has an auxiliary contact operating with the operation of the movable core and performing energization switching with respect to the closing coil and the holding coil. The trip spring is provided on one side of the electromagnet in a horizontal direction while the auxiliary contact is provided on the other side.

主权项

1. An actuator for a contactor comprising:
an electromagnet having a closing coil, a holding coil, fixed cores wound with the closing coil and the holding coil respectively, a movable core provided on one side of the fixed cores, and a yoke provided on the other side of the fixed cores, wherein a main contact movable member operates to perform electrical closing or interrupting operation of a main contact of an interrupting unit by attraction or release of the movable core of the electromagnet with respect to the fixed core, wherein the actuator further comprises: a trip spring that is energy-stored during the closing operation of the main contact of the interrupting unit and performs the interrupting operation of the main contact of the interrupting unit upon stopping the energization to the holding coil and thereby releasing the stored energy; and an auxiliary contact that operates with the operation of the movable core and performs energization switching with respect to the closing coil and the holding coil, and wherein the trip spring is provided on one side of the electromagnet in a horizontal direction while the auxiliary contact is provided on the other side.