Automotive Relay Wiring Diagram. Buy relays pigtails and kits here. Dozens of the most popular 12v relay wiring diagrams created for our site and members all in one place.
87 and 87a are the two contacts to which 30 will connect. Automotive relay diagram relays are switches controlled by electrical power like another switch computer or control module. A relay can be used to power a new circuit with very little added current draw on the original wiring.
Every circuit added to a modern car should be run through an automotive relay.
A relay is essentially a switch that is operated electrically rather than mechanically. Although there are various relay designs the ones most commonly found in low voltage auto and marine applications are electro mechanical relays that work by activating an electromagnet to pull a set of contacts to make or break a circuit. Buy relays pigtails and kits here. Automotive relay diagram relays are switches controlled by electrical power like another switch computer or control module.
