Automotive Electrical Relay

What is a relay.

Automotive electrical relay.

Relays with 5 contacts are called changeover relays and are capable of switching between two separate. Auto parts electrical and. What happens inside a relay isn t magic but it is important. Online led store 6 pack bosch style 5 pin 12v relay kit interlocking harness socket holder 14 awg hot wires spdt 30 40 amp 12 volt automotive relays for auto fan cars by online led store 12 45 12.

The terminal numberings found on a relay body are taken from din 72552 which is a german automotive industry standard that has been widely adopted and allocates a numeric code to various types of electrical terminals found in vehicles. Our relays have either 5 contacts or 4 contacts. We opted to tap into our. Understanding how the relay works will help with diagnosis and modifications to vehicle systems.

They employ an electromagnet device to mechanically switch and make or break an electrical circuit the type most commonly used in the auto industry is called a standard relay or a mini relay. If something were to fail and short the chances of an interior fire are significantly reduced if a relay is utilized to allow the higher voltage switching occur in the engine compartment. In the painless performance electric fan relay kit we got from speedway motors a circuit breaker is supplied if you wanted to safely get power directly from the battery. Relays are used when you need to switch higher currents than a switch can handle or when you want to isolate an electrical circuit.

Whether you need a refreshed fuel pump relay starter relay horn relay or anything in between we have you covered. The terminals on the outside of a 4 or 5 pin mini relay are marked with numbers as shown below. An automotive relay is an electronically operated switch. They are found in all types of vehicles.

The factory wiring in modern cars is light gauge and is not designed for additional loads. Every circuit added to a modern car should be run through an automotive relay. Automotive relays are for use in 12 volt electrical systems. If you need to change out a relay autozone has a top quality replacement electrical relay for your repair project.