What gauge wire is recommended when installing Pollak 7 way trailer connector?

Question:

Hello I was wondering what is the biggest gauge power wire that can be ran for trailer 7 way PK12-707E

asked by: Leo

Expert Reply:

Here are the recommended wire gauges when installing the Pollak 7-Pole, RV Socket Vehicle End # PK12-707E:
Ground - 10 gauge
Electric Brake - 12 gauge
Tail, License, and Running Lights - 14 gauge
Battery Charge - 10 gauge
Stop and Left-Hand Turn Signal - 14 gauge
Stop and Right-Hand Turn Signal - 14 gauge
Auxiliary / Reverse Circuit - 14 gauge

Since all of the screw connectors that accept wires are the same size, we can safely say that the maximum wire gauge for each connection is 10 gauge. It is always best to use a tester such as # PTW2992 to confirm the function of each wire when installing a trailer connector. I attached a wiring diagram and video to help you out with this process.