How To Run Large Gauge Wire Between Truck and Trailer

Question

Question:

I want to run a heavier gauge wire from my truck 2021 F3550 diesel to a fifth wheel RV and would like to maintain a 7 pin connection. I notice the other plug shows that #10 awg is the largest for all poles except ground. Can I use #6 OR #8 AWG for the 12 v + on this plug?

asked by: Mark B

0

Expert Reply:

The only option we can offer to run a large gauge wire between the trailer and tow vehicle is with the Pollak Single-Pole, Round Pin Trailer Wiring Socket part # PK11851 and the Pollak Single-Pole, Round Pin Trailer Wiring Connector part # PK11852. The standard 7-way terminals will only accept wires up to 10 gauge on all but the ground circuit.

expert reply by: Conner L

0

Answer 1

The #PK11851 Single Pole Round Pin Trailer Connector is designed to deliver power to a trailer. It is not grounded, as the battery on the tow vehicle is already grounded and trailer mounted equipment is typically grounded as well. The ground…

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Answer 2

While we don't offer it, what you'll need is 00 gauge wire for the Pollak Single-Pole, Round Pin Trailer Wiring Socket - Vehicle End #PK11851. You'll simply solder that size wire into the socket; that wire size can be found at any type of…

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Answer 3

As long as you do not exceed the 300 amp rating of the Pollak Single-Pole, Round Pin Trailer Wiring Socket part #PK11851 then this would work for you. For the male end of the above socket you would want to use the Pollak Single-Pole, Round Pin…

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Answer 4

The Pollak Single-Pole, Round Pin Trailer Wiring Socket #PK11851 and plug part #PK11852 are rated for 300 amps of continous use like you mentioned. They can accept up to 00 gauge wire which is very thick.

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Answer 5

The 12 volt circuit on a 7-Way trailer connector can provide a maintenance charge to a 12 volt battery but it will not be able to fully charge it because the wiring for a 7-Way is too small to carry the current required. What you can do to charge the…

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Answer 6

If you are looking for a single pole connector to use as a charge line for the batteries of your RV the part numbers #PK11851 and #PK11852 would be a great choice. These connectors can accept wire gauge up to 00.

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Answer 7

The #PK12801 has the following dimensions: Top to Bottom: 3-5/8" Side to side: 3-3/4" Cut out: 1-13/16" I've also added a diagram with these dimensions for you to check out.

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Answer 8

A 2 gauge wire is only a little smaller than double aught (2/0) by about 0.11 inches diameter so it could be used in connector #PK11852. But I advise soldering in the wire and not crimping it for the best results. Triple aught (3/0) would be too…

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Answer 9

The #PK11851 Single Pole Round Pin Trailer Connector is designed to deliver power to a trailer. It's not grounded, because the battery on the tow vehicle is already grounded and trailer mounted equipment is usually grounded as well. The ground…

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Answer 10

On the 2-pole connector #PK12800 there is a set screw on the bottom, face end, of the connector. Remove this small screw with a flat screwdriver and you can pull out the terminals of the connector. On the other end you would route your wires (make…

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Answer 11

The part #PK11852 and #PK11851 can be used for charging a trailer's battery. You would not be completing a circuit on the trailer since it's running to a battery so all you'd need to do is run the charge wire to the battery and you'd…

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Answer 12

Yes, you will need to run a separate ground wire with the main power wire. So it would be best to use the Pollak 2-Pole Socket Connector #PK12801 with their 2-Pole Trailer Wiring Connector #PK12800 for your power wires. The physical connection from…

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