Forum Discussion
westend
Sep 24, 2015Explorer
FWIW, I replaced the daisy chain brake wiring on my trailer with 14 ga. in a star configuration. I chose to have both the ground and positive phase installed in conduit to a termination strip on the tongue (enclosed). That is one pair of wires for each brake plate. My brakes work fine and it is easy to diagnose an electrical fault.
Any gauge wire 16 AWG or larger will handle the current to engage 4 brakes. 16 ga will have more voltage drop than 12 or 10. You will need to decide how much voltage drop is going to affect your brake system. I would suggest that replacing the shoes or adjusting them will bring 100 times better results than increasing a 15' wire to a larger gauge.
Any gauge wire 16 AWG or larger will handle the current to engage 4 brakes. 16 ga will have more voltage drop than 12 or 10. You will need to decide how much voltage drop is going to affect your brake system. I would suggest that replacing the shoes or adjusting them will bring 100 times better results than increasing a 15' wire to a larger gauge.
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