Contactor accessories have what roles?
insulation shell and accessories, all kinds of springs, transmission, short circuit, terminal and so on
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;
contact system, including three main contacts and one to two groups of normally open, normally closed auxiliary contact, it is moving together with the core is linked to each other;
electromagnetic system, including the attracting coil, moving core and static core
AC contactor auxiliary contact is used to control the three-phase AC three fire lines; auxiliary contact is used to achieve:
