Electromagnetic System: Includes the attraction coil, moving iron core, and stationary iron core.
Contact System: Includes three sets of main contacts and one or two sets of normally open and normally closed auxiliary contacts. It is connected to and operates in conjunction with the moving iron core.
Arc Extinguishing Device: Generally, larger capacity AC contactors are equipped with an arc extinguishing device to quickly interrupt the arc and prevent damage to the main contacts.
Insulating Housing and Accessories: Various springs, transmission mechanism, short-circuit ring, terminals, etc.
