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Old 04-25-2018, 06:01 PM   #3
Pmedic4
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Join Date: Mar 2013
Location: Illinois
Posts: 581
Lightbulb Wiring up for the inverter with 50Amp Service

Yes, that's what the 30 Amp to 50 Amp dogbone does, it just provides the single hot wire (the black wire in 30 Amp service) to both the hot wires in the 50 Amp service, which is to both the black and the red wire. In almost all RV situations, there really isn't a need for 240 volt service, you just effectively have two separate 120 volt services.

It could work several ways, but not as simple as the old method. Probably the easiest, but not the cheapest would be to purchase another inverter and power both hot wires. The power draw from the batteries would be the same, except for the negligible loss from running the two inverters. Important, this won't give you 240 volts, but as said before, most RV's don't need 240 volt service. If you need 240 volts, some Xantrex inverters allow a synch wire to allow for this requirement.

Also, you could change the input point of your single inverter to power both hots, but I think you know this, and the implication it alters your wiring.

There are also 240volt inverters, but they are more expensive and also probably require your battery bank be setup for 48volt power level.
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