Definition of contactor in English:


Syllabification: con·tac·tor
Pronunciation: /ˈkänˌtaktər, kənˈtak-


  • A device for making and breaking an electric circuit.
    More example sentences
    • A combination circuit breaker/motor starter includes a circuit breaker trip unit having a microprocessor and at least one removably connectable contactor or other functional module.
    • Rewire the ignition switch so that it can turn on all the new equipment, including the contactor.
    • That Sunday, our electricians discovered the external-power contactor, installed in 1983, had broken.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day milord
Pronunciation: mɪˈlɔːd
used to address an English nobleman