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Power inverter wire gauge
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Gerald J.
Posted 9/20/2017 10:43 (#6259324 - in reply to #6259279)
Subject: RE: Power inverter wire gauge



At 12 volts input the 6000 watt inverter could draw more than 500 amps. At 12 volts a wire picked by the NEC heating criteria will have way too much voltage drop, so needs to be as big as you can find and can install. I'd think without computing voltage drop that 4/0 or 350 MCM would be almost adequate for copper.

I don't think the engine alternator will keep up with that inverter load so it can't be continuous. I'd be looking at plumbing in a heater core to the engine cooling system for bus heat.

Gerald J.
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