5 Pin Relay Wiring Diagram Fan

5 Pin Relay Wiring Diagram Fan. They protect the switch from damage by passing the higher amperage through the relay instead of the switch. If connected to NO the load remains disconnected before trigger.

They protect the switch from damage by passing the higher amperage through the relay instead of the switch. In the above wiring diagram we have kept the jumper in place, due to which the electromagnet of the relay will be driven directly from the Arduino. We can control high voltage electronic devices using relays.

You should see a wiring diagram glued to the inside of the air handler cabinet or to the inside of the blower compartment door.

Below are the wiring diagrams for the relay setup and the two switches.

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In the above wiring diagram we have kept the jumper in place, due to which the electromagnet of the relay will be driven directly from the Arduino. Power from a fan relay to the fan motor. The wiring diagrams are grouped into individual sections.