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cc5084 avatar image
cc5084 asked

Fusing for Parallel Muliplus Inverters

I am going to have two multiplus 3000W inverters hooked up in parallel to achieve 6000 effective watts, and am wondering what cable size and fusing I should use for it. I know that for one inverter I would use 2/0 cable along with a 400 amp fuse between the batteries and the inverter. So what would the recommended wire size and fuse size be for my parallel set up?


Additionally, what is the recommended wire routing for this set up. I commonly saw that one positive and negative can be run to the area of the inverters, then jump each inverter via a busbar to power and ground. Is that sufficient or are there other ways to do this?

multiplus in parallelfusesmultiple inverters
2 |3000

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1 Answer
davidmnz1234 avatar image
davidmnz1234 answered ·

I am building the same setup. I'm not sure where you are getting your information from but you should read the Multiplus manual and Wiring Unlimited. You should also be very careful to have NO fusing/switching in the negative leads to the inverters. There is a real chance of frying the VE Bus cable and/or inverter PCB boards if you break the negative connection while the inverter input capacitors are charged up.

2 |3000

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