Quote:
Originally Posted by j cAT
I will comment on the trailer 12 volt power that is to the refrigerator and other camper on board devices. with this I would run another 12 volt feed wire and ground for the 12 volt source of the camper. properly fused and with 6 ga. wire.
the long run to the camper is why you need larger sized wire to handle the high amps with the low 12volts. also any inverters in the camper will require high amp capacity wire. 6 GA should do it for 40 amps over 20 feet.do a quick wire run around the vehicle to test out first then properly wire into the frame / body to the camper.
the aux feed wire gm uses is not that good for high amps..
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The camper and trailer are factory wired. I just discovered that the the DC refer circuit was utilizing the electric brake pin of the 7 pin connector. All other appliances utilized the aux feed pin of the 7 pin or 120V when plugged into house power.
40amps sounds too high for this circuit. The refer will only run on DC while traveling and no other appliances or lights on the aux feed will be energized during travel. Essentially it will have it's own dedicated circuit when run on DC. The refer DC heating element is 150W (~12.5A) and has a 15amp fuse in place. If my memory serves correctly the fuse for the aux power feed in the truck is 20A.