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Old 12-02-2019, 02:28 PM   #15
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Thanks for correcting me. I will go back check my MS2812. I don't remember I installed that grounding but my inverter is sitting on and bolted on to chassis .

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Old 12-02-2019, 11:34 PM   #16
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I called the retailer today and they said I could use 10 or 12 awg wire to ground my inverter to the chassis. They couldn't find anything in the manual stating size of wire for grounding. They also said I could just run the ground from chassis to my negative busbar and I wouldn't need to run a ground wire to my inverter. The negative cable from the inverter to battery passes through my negative busbar so it will be grounded through the busbar. This method seems better for my situation.

Thank you for your assistance.

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Old 12-03-2019, 05:43 AM   #17
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You need to be very careful when talking about grounding an inverter. The term ground on the 12 volt side is VERY different then the ground on the 120 volt side. On the 12 volt side people talk of Hot and Ground. On the 120 volt side it's Hot, neutral, and ground. Ground on the 120 volt side will never be over 12 ga on an RV system. The 120 volt case to chassis grounding is really called Bonding not grounding.
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Old 12-03-2019, 11:07 AM   #18
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Thank you!

I got the feeling the electrical jargon was the issue here. I was misunderstanding the manual and when I posted my question here I still had the same problem. We weren't on the same page. I haven't started wiring the inverter into the panel yet so that's going to be my next challenge.

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12 volt, inverter

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