A breakaway switch is an important safety feature that is installed on most trailers, including utility trailers, travel trailers and horse trailers. The breakaway switch is designed to activate the trailer’s brakes if it becomes disconnected from the tow vehicle. This is a critical safety feature, as a runaway trailer can cause serious damage and injure people.
What is a Breakaway Switch?
A breakaway switch is a safety device that is installed on a trailer’s braking system. It is designed to activate the trailer’s brakes in the event that the trailer becomes disconnected from the tow vehicle. The switch consists of a cable that is attached to the tow vehicle and a switch that is mounted on the trailer. If the trailer becomes disconnected from the tow vehicle, the cable pulls on the switch, which activates the trailer’s brakes.
The breakaway switch is required by law on almost all trailers that are equipped with electric brakes. It is a critical safety feature that can prevent serious accidents and injuries.
How to Wire a Breakaway Switch
Wiring a breakaway switch is a straightforward process that can be done by most DIYers. The switch is wired into the trailer’s electrical system and is usually located near the tongue. Here are the steps to wire a breakaway switch:
Step 1: Mount the Breakaway Switch
The breakaway switch should be mounted on the trailer’s frame near the tongue. It should be mounted in a location where it can be easily accessed but is not in danger of being damaged. Use screws or bolts to attach the switch to the frame.
Step 2: Connect the Wires
The breakaway switch has two wires: a black wire and a blue wire. The black wire should be connected to the positive (+) terminal on the trailer’s battery. The blue wire should be connected to the electric brake wire on the trailer’s plug. This wire is usually blue or blue with a white stripe.
Step 3: Test the Breakaway Switch
Once the switch is wired, it is important to test it to ensure that it is working properly. To test the switch, pull the breakaway cable out of the switch. This should cause the trailer’s brakes to engage. If the brakes don’t engage, double-check the wiring and connections.
Breakaway Switch Wiring Diagram
For those who prefer a visual guide, here is a wiring diagram for a breakaway switch:
| Color | Wire | Connection |
|---|---|---|
| Black | Positive (+) | Trailer Battery |
| Blue | Electric Brake Wire | Trailer Plug |
FAQ
Q: Why do I need a breakaway switch?
A: A breakaway switch is required by law on almost all trailers that are equipped with electric brakes. It is a critical safety feature that can prevent serious accidents and injuries.
Q: How do I test my breakaway switch?
A: To test the switch, pull the breakaway cable out of the switch. This should cause the trailer’s brakes to engage. If the brakes don’t engage, double-check the wiring and connections.
Q: Can I wire the breakaway switch to a different power source?
A: No. The breakaway switch must be wired to the trailer’s battery. Wiring it to a different power source can cause the switch to malfunction.
Q: Can I install a breakaway switch myself?
A: Yes, wiring a breakaway switch is a straightforward process that can be done by most DIYers. However, if you are not comfortable with electrical wiring or are unsure of how to wire the switch, it is best to consult a professional.
Q: How often should I test my breakaway switch?
A: You should test your breakaway switch every time you use your trailer. This will ensure that it is working properly and will help prevent accidents and injuries.
Q: What do I do if my breakaway switch is not working?
A: If your breakaway switch is not working, double-check the wiring and connections. If everything is connected properly and the switch still does not work, it may need to be replaced.
Wiring a breakaway switch is a critical safety feature that can prevent serious accidents and injuries. With a little knowledge and the right tools, wiring a breakaway switch is a simple DIY project that almost anyone can do. If you have any questions or concerns about wiring a breakaway switch, consult a professional.
