Definition, Meaning & Synonyms

contactor

Noun
/ˈkɒn.tæktər/
Definition
A contactor is an electromechanical device used for switching an electrical circuit on or off.
Examples
  • The contactor in the motor circuit controlled the power supply effectively.
  • During the inspection, we found that the contactor was malfunctioning.
  • He replaced the old contactor with a new one to improve efficiency.
Meaning
In simpler terms, a contactor is like a relay that can control a high power circuit with a low power signal.
Synonyms
  • Relay
  • Switch
  • Breaker