What is the number of AC contactors?
the arc extinguishing device, the general capacity of the larger AC contactor are equipped with arc extinguishing device, in order to quickly cut off the arc, from burning the main contact
AC contactor is mainly composed of four parts: (1) electromagnetic system, including the attracting coil, moving core and static core;
AC contactor series is the number of phases, there are two-phase, three-phase, four-phase and so on
contact system, including three main contacts and one to two groups normally open, normally closed auxiliary
