What does coil mean on a relay?
What does coil mean on a relay? COIL (also referred to as primary or input) • Nominal Coil Voltage (Rated Coil Voltage) A single value (or narrow range) of source voltage intended by design to be applied to the coil or input. What causes the current coil relay contacts to close? Coil: Wire is wound around a metal core. The coil of wire causes an electromagnetic field. Armature: A relays moving part. The armature opens and closes the contacts. Can one relay coil control several different relay contacts? An electromechanical relay will usually have only one coil but may have...