What is Contactor?
[[File:ACcontactor.JPG|thumb|Contactor]] A '''contactor''' is an electric device to [[switch]] an [[electric circuit]]. It is controlled electrically for it to switch on or switch off the circuit. It has a relatively high [[electric current|current]] rating. The control circuit usually has much lower [[Electric power|power]] level than the switched circuit. ==Related pages== * [[Relay]] {{tech-stub}} [[Category:Electricity]]