Contactors provide remote control of primarily electric motors and compensation & heating systems by cable. They protect the instruments and equipments against overload currents by using thermal relays, for Capacitor switching contactor: While switching on a capacitive circuit, a high frequency (1…15Hz) and large transient current peaks are produced.

Contactors provide remote control of primarily electric motors and compensation & heating systems by cable. They protect the instruments and equipments against overload currents by using thermal relays, for Capacitor switching contactor: While switching on a capacitive circuit, a high frequency (1…15Hz) and large transient current peaks are produced.