How To Wire Up A Relay

Connect relay terminal 87 to the vehicle body or battery negative terminal.

How to wire up a relay. Step 1 connect wires to the coil of your relay. The other two wires on the relay are the meat and potatoes of the system with the yellow wire connecting to the battery along with the supplied fuse mounted within 12 inches of the battery. This video covers both 4 and 5 pin 12vdc relays. Instructions for wiring a standard automotive relay with descriptions of the pin out and the schematic.

How to wire your light using a relay. Assortment of 12 volt relay wiring diagram. Two wires to the coil to operate the relay itself and two wires to the relay contacts to apply power to your accessory. If you do not install a relay and use a switch you could end up overheating the switch melting the wires and reducing the current that is getting to your lights making them less bright.

To wire an automotive relay make at least four connections. Relay logic provides you with a guide for using ncd relay controllers and how they can be wired for many types of applications. Pin s 1 3 as normally open pin s 1 4 as normally closed. The orange wire on the relay should see a 12 volt signal when the ignition switch is turned on.

You need sufficient electrical skill to select the tools wire and connectors for the job. In this video i show you how to wire a 12 volt automotive bosch style relay. Relay logic is all about wiring up relays for logical switching applications. This wire gray in our kit supplies the ground signal to trigger the relay.

The other pole has. So when wiring up these relays the coil wire s will connect to pins 2 7 on the socket. Pin s 8 6 as normally open pin s 8 5 as normally closed. A wiring diagram is a simplified traditional pictorial depiction of an electrical circuit.

This page demonstrates several simple ways to wire a relay for various applications. The relay will have 4 points on it marked 30 87 85 and 86. I go over what each contact of the relay is for and. Use a piece of 18 gauge primary wire with a solder less female spade connector on one end and a solder less ring terminal on the other.

Best connections 12voltwire c. Step 2 connect relay terminal 85 to an automotive circuit breaker. It reveals the components of the circuit as simplified shapes and also the power and signal connections in between the tools.