mcb circuit breaker Contactor

Works

When the contactor solenoid is not energized, the spring reaction force and the title of the core of the main contacts to keep the weight off position. When the solenoid is Cncelegroup‍ ON-controlled by the control circuit voltage (mcb circuit breaker), the electromagnetic force against the spring reaction force of the armature attracted to the stationary core, drive the main contacts are closed, connected to the circuit, along with the auxiliary contact action.

Permanent magnet AC contactor

Structure

Contactor is mainly driven by the system, contact system, interrupter system and other components.

① drive system: the ‍drive system includes an electronic module, soft iron, permanent magnet, is an important part of the permanent magnet contactor, relying on it to drive the contacts Air circuit breaker‍ closed and disconnected.

② contact system: contacts are operative contacts, including the main contacts and auxiliary contacts. The role of the main contact and breaking the main circuit, control large currents, and the auxiliary contacts are in the control loop, in order to meet the requirements of various control methods.

③ interrupter system: arc extinguishing means used to ensure that the circuit when the contacts open, arcing reliably extinguished, reduce damage to the arc of contact. In order to quickly extinguish the arc disconnected, usually contactors are equipped with interrupter device, generally semi-sealed longitudinal seam of clay interrupter cover, and with magnetic arc blow circuit.

④ Other parts: an insulating housing, Energy Meter‍ a spring, the drive mechanism and the like.