Tape all connections with electrical tape.
Rv breakaway switch wiring.
20 amp should be good.
If that happens a safety line will pull the plunger out and the switch will activate the trailer brakes.
This car is designed not just to travel one place to another but also to take heavy loads.
Finally all brake assemblies on the trailer should also be adjusted properly.
If necessary extend this wire with 14 gauge automotive primary wire and solderless butt connectors.
This battery is charged by the tow vehicles charging system only.
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A fuse is a good idea.
A break away switch with 3 wires is for a trailer without a battery charger.
Perform the splice with a solderless butt connector.
I use them on my farm trailers.
The breakaway switch is there in case the fifth wheel trailer and the truck becomes separated during towing.
Additionally to be sure any breakaway switch is functioning properly raise each tire off the ground one at a time.
Each tire and wheel assembly should immediately lock up when the pin is pulled.
Breakaway battery box houses a 12 volt battery and in some models a battery charger mounting the breakaway kit.
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I also give the tow cable connectors a clean and redo a ground wire with a bit of corrosion on it.
Breakaway switch mounted to the trailer frame and has a cable that connects to the vehicle s frame if the trailer disconnects the cable pulls a pin out of the switch activating the trailer brakes.
Make sure it is weather proof or install in a dry location like inside battery box.
Spin each tire and pull the activation pin.
Connect one lead of the trailer breakaway switch to the breakaway battery s positive wire.