LED lights have become a popular lighting option that can be used in various applications, such as automotive, marine, and home lighting systems. To ensure that your LED lights function properly and efficiently, you need to wire them correctly with a relay. A relay is an electrical switch that is used to control the flow of electricity to your LED lights. In this article, we will provide you with a comprehensive guide on how to wire your LED lights with a relay, including a wiring diagram, tables, and frequently asked questions (FAQs).
What is a Relay?
A relay is an electrical device that is used to control and switch an electrical circuit on and off. It is made up of a coil of wire and a set of contacts that are switched by an electromagnetic field when the coil is energized. Relays are commonly used in lighting systems to switch high currents, protect switches from high voltage, and provide remote control over devices.
How Does a Relay Work?
A relay works by connecting and disconnecting the electrical circuit through the use of an electromagnetic field. The coil of wire in the relay is an electromagnet that, when energized, produces a magnetic field. This field attracts a metal lever or arm that is connected to the switch contacts. When the lever moves, it opens or closes the contacts, thus turning the circuit on or off.
Relays are used in automotive and marine lighting systems to control the flow of electricity to the LED lights. They are designed to handle high currents and provide a reliable switching mechanism that can withstand harsh conditions.
12 Volt LED Wiring Diagram with Relay
| Symbol | Description |
|---|---|
| 85 | Ground |
| 86 | Trigger |
| 87 | Load |
| 87a | Not Used |
| 30 | Power Source |
The following diagram shows how to wire your LED lights with a relay. This diagram is for a 12-volt system and will work for most LED lighting systems. The relay is used to control the flow of electricity to the LED lights, and the switch is used to turn the lights on and off.
In this diagram, the red wire represents the power source, and the black wire represents the ground. The yellow wire represents the trigger wire that is connected to the switch, and the blue wire represents the load wire that is connected to the LED lights.
FAQs
What is the purpose of a relay in LED lighting systems?
The purpose of a relay in LED lighting systems is to control the flow of electricity to the LED lights. A relay is designed to handle high currents and provide a reliable switching mechanism that can withstand harsh conditions.
How do I wire my LED lights with a relay?
To wire your LED lights with a relay, you need to connect the power source to the relay’s terminal 30, the ground to terminal 85, the trigger wire to terminal 86, and the load wire to terminal 87. The switch should be connected to the trigger wire.
What size relay do I need for my LED lights?
The size of the relay you need for your LED lights depends on the current draw of your lights. You should choose a relay that can handle the current draw of your lights and has a high enough voltage rating for your application.
Can I use a relay with my existing switch?
Yes, you can use a relay with your existing switch. The switch is connected to the trigger wire on the relay, and the relay is used to control the flow of electricity to your LED lights.
What type of fuse should I use with my LED lights?
You should use a fuse that is rated for the current draw of your LED lights. The fuse should be located as close to the power source as possible and should be easily accessible for replacement.
What is the maximum length of wire I can use with my LED lights?
The maximum length of wire you can use with your LED lights depends on the current draw of your lights and the gauge of wire you are using. You should consult the manufacturer’s recommendations for wire size and length.
By following the wiring diagram and guidelines provided in this article, you can wire your 12-volt LED lights with a relay and ensure that they function properly and efficiently. This will help to protect your LED lights from damage and extend their lifespan. If you have any further questions, feel free to refer to our FAQs or consult a qualified electrician.
