Relays are devices that allow a low-power signal to control a high-power circuit. A 5 pin relay is one of the most common types of relays used in automotive applications. It has five pins, including two for the coil, two for the switch, and one pin for the common terminal.
Understanding how to wire a 5 pin relay is essential for anyone working on automotive electrical systems. By following a proper wiring diagram, you can ensure that your relay functions correctly and safely.
Wiring Diagram For 5 Pin Relay
When wiring a 5 pin relay, it’s important to pay attention to the pin configuration and follow the manufacturer’s instructions. The pins are typically labeled as follows: pin 30 (common), pin 85 (coil ground), pin 86 (coil power), pin 87 (normally open), and pin 87a (normally closed). By connecting the appropriate wires to each pin, you can control the flow of electricity through the relay.
To wire a 5 pin relay, start by connecting the coil power (pin 86) to a power source. Then, connect the coil ground (pin 85) to a ground source. Next, connect the common terminal (pin 30) to the power source you want to control. Finally, connect the normally open (pin 87) and normally closed (pin 87a) terminals to the device you want to control.
It’s important to double-check your wiring before applying power to the relay to avoid any potential damage. Once everything is connected properly, you can test the relay by applying power to the coil terminals. If the relay functions correctly, you should hear a clicking sound as the switch opens and closes.
By following a wiring diagram for a 5 pin relay and paying attention to the pin configuration, you can easily control high-power circuits with a low-power signal. Whether you’re installing aftermarket lighting, a horn, or a cooling fan, a 5 pin relay is a versatile and reliable component for your automotive electrical needs.
Overall, understanding how to wire a 5 pin relay is crucial for anyone working on automotive electrical systems. By following the proper wiring diagram and paying attention to the pin configuration, you can ensure that your relay functions correctly and safely.