CNC Electric AC contactor can be divided into electromagnetic, permanent magnet and vacuum three.

Categories

Commonly used AC contactor CJ10, CJ40, CJ12, CJ20 and Energy Meter‍ the introduction of CJX, 3TB, B series.

Electromagnetic AC CNC Electric‍

Contact mainly by electromagnetic system, contact system, arc system and other parts.

① electromagnetic system: electromagnetic system includes an electromagnetic coil and core, is an important part of the contactor, rely on it to drive the contacts 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, power transformers‍ 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, a spring, circuit breakers‍ short-circuit ring, the drive mechanism and the like.