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Josep morancho avatar image
Josep morancho asked

Fuse size between battery and Multiplus inverter

I have a Multiplus II 5KVA and 3 x 3Kw 48V Pylontech Lithoum batteries.

Multiplus II 5KVA with 48V battery has a maximum power peak of 9Kw.

Does the fuse between the battery bank and the invertes have to be size for the nominal current (104A) plus a 25% security factor or for the maximum peak current (188A) ?

Thanks


Multiplus-II
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kevgermany avatar image
kevgermany answered ·

There should be a fuse size in the manual. But it needs to be sized above peak. Same goes for cabling.

The startup current with the big capacitors inside is very high.

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kevgermany avatar image kevgermany ♦♦ commented ·

I just checked the manual. Section 4.2 says 200A fuse, 70mm square cables up to 5M, 2*70mm over that.

Use good quality maxi fuses.

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