5 Pin Relay Wiring For Beginners
5 pin relay wiring can be done many different ways. The two most common ways to wire a 5 pin relay is with a positive trigger and with a negative trigger. Each method has its own benefits. In this video, I show how to wire a relay each way, and how the relay actually works. Rather than trying to read a relay wiring diagram, this video provides the guidance you need to do it yourself without the confusion of schematics. Many people call this type of relay a “Bosch type relay”, because that is the company most known for making them. If you are wiring a relay into your car, this videos shows you all of the relay connections that you need to make to get the job done right!
This is a how-to video for wiring a 5 pin Bosch-style Automotive relay. I’ve created an actual circuit for you to follow along with, and I explain how they work. Relays are important to have for Fuel Pumps, Electric Fans, Horns, Aftermarket Lights, etc. They protect the switch from damage by passing the higher amperage through the relay instead of the switch. In this specific diagram, it is wired as a "positive trigger" relay. That means that you are controlling the positive side of the circuit with a switch, rather than the negative side.
Pin 30 – Power goes INTO this pin from a 12v power source (This could be a battery or fuse box). You should always run a fuse in between the power source and the relay. The fuse size depends on what you are powering. See this video to learn about proper fuse sizing.
Pin 87 – Power will come OUT of this pin. This pin needs to be connected to the power side of your accessory (LED light, fuel pump, radio, etc.)
Pin 86 – Power goes INTO this pin FROM the toggle switch. The other side of the switch should be connected to a power source (A battery or fuse box.) Theres should always be a fuse in between the power source and switch. See this video to learn about proper fuse sizing.
5 Pin Relay Wiring For Beginners
5 pin relay wiring can be done many different ways. The two most common ways to wire a 5 pin relay is with a positive trigger and with a negative trigger. Each method has its own benefits. In this video, I show how to wire a relay each way, and how the relay actually works. Rather than trying to read a relay wiring diagram, this video provides the guidance you need to do it yourself without the confusion of schematics. Many people call this type of relay a “Bosch type relay”, because that is the company most known for making them. If you are wiring a relay into your car, this videos shows you all of the relay connections that you need to make to get the job done right!
This is a how-to video for wiring a 5 pin Bosch-style Automotive relay. I’ve created an actual circuit for you to follow along with, and I explain how they work. Relays are important to have for Fuel Pumps, Electric Fans, Horns, Aftermarket Lights, etc. They protect the switch from damage by passing the higher amperage through the relay instead of the switch. In this specific diagram, it is wired as a "positive trigger" relay. That means that you are controlling the positive side of the circuit with a switch, rather than the negative side.
Pin 30 – Power goes INTO this pin from a 12v power source (This could be a battery or fuse box). You should always run a fuse in between the power source and the relay. The fuse size depends on what you are powering. See this video to learn about proper fuse sizing.
Pin 87 – Power will come OUT of this pin. This pin needs to be connected to the power side of your accessory (LED light, fuel pump, radio, etc.)
Pin 86 – Power goes INTO this pin FROM the toggle switch. The other side of the switch should be connected to a power source (A battery or fuse box.) Theres should always be a fuse in between the power source and switch. See this video to learn about proper fuse sizing.
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