By the drive system, contact systems, arc and other components of the connector.
usually contactor are equipped with arc extinguishing device, the general use of semi-sealed vertical seam clay hood, and with a strong magnetic blown arc.
the arc generated by the reliable off to reduce the damage to the contact of the arc. In order to quickly extinguish the arc when the break
arc extinguishing system: arc extinguishing device used to ensure that the contact disconnect the circuit
