I see that our trailer has an unfused 16g wire going from the battery terminal on the frame to the trailer disconnect (brake) switch, and then back into the brake wire of the 7 pin. There is no fuse in this line. As I understand it, the 4 brakes at full voltage might draw around 14-16 amps. The 16g wire would indeed get a bit warm, but, if the trailer is disconnected that would be a minor concern. A more realistic concern is if the disconnect gets accidentally tripped. I plan to put a 20a fuse on this hopefully never used line.
Thoughts?
Thoughts?
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