Contactor Relay Coil Diagram. A simple circuit diagram. A wiring diagram is a streamlined conventional photographic representation of an electric circuit.
When the coil is energized the circuit that the contactor is switching will be energized. Coil labeled cr5 and all contacts for that relay also labeled cr5 while other times you will find suffix numbers used to distinguish. They are designed to handle 30 amps at 120vac or 240vac.
In general contactors are intended to control higher levels of current.
A contactor operates in a similar way to a relay. Back to the top 3. If you read a very low resistance and very high resistance the coil is either shorted or is open. Either of the two coils are used for making or breaking contact.