Umbilical cord

[bwaysteve]

I need to replace trailer wiring in my resto.What is the ideal size for the different colored 7 wires?

[Splitrock]

Eight foot.

[Inland RV Center, In]

Originally Posted by bwaysteve

I need to replace trailer wiring in my resto.What is the ideal size for the different colored 7 wires?

5 wires at 12 or 14 guage.

2 wires at 10 guage.

The correct 7 way cable is readily available.

Andy

[bwaysteve]

I mean gauge.

[Splitrock]

Originally Posted by bwaysteve

I mean gauge.

I bought a molded end cord (8' long:-). The 12 volt wire and the ground is 10 gauge and the light wires look to be 14 gauge. The brake wire might be 12. When I wired my 7 way to the fuse panel, I used #10 for the 12 volt, the ground, and the brakes. Everything else I used 14.

Gary

[Jammer]

What Andy said.

The umbilical is short and wire gauge isn't that critical except maybe for the charge line and ground if you're trying to get the battery in the traylah to charge while under way.

So, the turn signals, and backup lights, for instance, any gauge is fine, you could run 20 gauge and never notice any problems. Brakes, for a tandem axle, 14 gauge though 16 will probably work, triple axle, 12 or 14 gauge. Tail and marker, if you have LEDs, 16 gauge is enough, 14 otherwise.