question

wlgrau avatar image
wlgrau asked

Generator neutral floating or bonded

I have a Multiplus 3000 installed in my RV. I use a generator to charge the batteries. Does it matter if the generator has a neutral floating or the neutral is bonded to ground?

Generator
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1 Answer
markus avatar image
markus answered ·

Yes - that does matter and depends on your implemented safety.

In default configuration, when the Multi accepts the generator on AC-IN, the ground relay opens and you are missing a Neutral, if your generator does not provide it.

A RCD will not work as intended, when Neutral is missing.

There is no easy (or even legal) way, to modify your generator to have a Neutral if it has none and vice versa.

You could choose, to have a isolated (IT) net in your RV without a Neutral, to change this, a reconfiguration of the Multi and additional safety devices can be necessary.

I would very(!) much suggest, to ask your local electrician about that matter and let him guide you.

It also depends on local rules, what is allowed to do, or not.

Best Regards.

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