[How To] Read Online Accessory Relay Wiring Diagram

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Accessory Relay Wiring Diagram. Relays are a mechanical device that can connect or disconnect power to an accessory when it gets a low voltage signal from a switch. If you want a normally closed relay you will want to wire to 87a.

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The left side is the pin out of the point is sticking out from at the bottom and the the right side is showing a schematic representation of the relay circuitry. They commonly use an electromagnet coil to operate their internal mechanical switching mechanism contacts. Presumably your motorcycle doesnt have a dedicated accessory circuit or youd just be using that.

As in the diagram a wire is run from a 12 volt power source to the switch in the cab and out to the relay placing a fuse at the source of the power.

Radio On Until Door Opened Retained Accessory Power - Negative Door Trigger Relay Wiring Diagram. A relay is an electrically operated switch. The positive lead on the 15-amp circuit I want to power. The switched power source.