What does the contactor NC ON mean?
insulation shell and accessories, all kinds of springs, transmission, short circuit, terminal, etc
contact system, including three main contacts and one to two groups normally open, normally closed auxiliary
AC contactor is mainly composed of four parts: (1) electromagnetic system, including the attracting coil, moving core and static cor
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
