33+ 12 Volt 4 Pin Relay Wiring Diagrams
Images. If the relay has a 5th terminal, it is not used. Wiring the relay creates a half bridge.
The components and wiring diagrams produce a useful 12v actuator timer. Diagram showing which color wire to use. When wiring an electric fan, make sure the positive ignition lead is one that turns off when the starter is engaged.
When 12v is applied to pin 8, the relay will activate.
This video covers both 4 and 5 pin 12vdc relays. An electrical system is only as reliable as its components. Relay wiring diagram used for accessories in a 12volt system.a relay is typically used to control a component that draws high amperage. Even higher power switching is available in our 4 pole 80 amp relay and 200 amp relay.