30 amp generator with 12 gauge wire?????
Ok, have a quick question for you electrical guys. I had to pull my Onan 4000 generator for some landing gear work. Noticed that the AC feed wires are 12 gauge and about 6' long before a junction box ...
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Sorry, been watching a movie. Lots to reply to. By AC I did mean AC current, not air conditioner. No real transfer switch on my rig, unless it is built into the converter. The 12 ga stranded wire is factory wiring from Onan. The inside of the genset has never been messed with, trust me these are the factory supplied wires. They run about 6' out of the genset and into the front storage compartment. Inside this compartment is a junction box, where it transitions to solid core 10/3 wiring. This wire runs back to the converter where it powers the entire panel just like the shore power does.
Everything else on this rig that was installed by the dealer was butchered, including using spare trailer light wiring to hook up the control switch for the genny. Where the 12 ga wire hooks into the generator is deep inside the panel and still has the nice, neat factory wiring looms on everything. I have no doubt that the 12 ga wire is what came from Onan, but curious about using it on what I thought had to be 10 ga all the way through. Maybe it is such a short run that 12 ga is OK. I may rewire with 10, but in order to hook up the hot wire it will require some moderate disassembly of the front of the genny. That connection isn't easy to get to.
Everything else on this rig that was installed by the dealer was butchered, including using spare trailer light wiring to hook up the control switch for the genny. Where the 12 ga wire hooks into the generator is deep inside the panel and still has the nice, neat factory wiring looms on everything. I have no doubt that the 12 ga wire is what came from Onan, but curious about using it on what I thought had to be 10 ga all the way through. Maybe it is such a short run that 12 ga is OK. I may rewire with 10, but in order to hook up the hot wire it will require some moderate disassembly of the front of the genny. That connection isn't easy to get to.
