Section 4.2 "Connection of Battery Cables" does not show information for the 48/15000 version. Does anybody know what the DC fuse size is and the recommended cable sizes are?
asked
Recommended DC Fuse/Cable Size for Multiplus II 48/15000 (not shown in manual)
Doing some math on your own you get to a 600A fuse, at last 2x70mm² for 5m and 2x95mm² vor 10m.
Or looking at the manual of the "old" 15kVA Quattro:
Thanks, I appreciate that info. It would be cool if, while you're having Victron fix its manual's discussion of parallel capability, it were to add a section for the 15K in the table in the manual for battery and fuse sizing too. For people like me who live in places that don't have solar installers or other people nearby.
As a guy re-designing my system and my cable selection and my circuit breaker selection at the last hour, after spending a ton of money (because a Victron dealer wrongly told me the 48/8000 units would operate in parallel) and who is now scrambling to find an option to save the massive investment I have already made in Victron equipment (while also trying to figure out what to do with two brand new 48/8000s that the dealer sees no reason he should be involved in being returned), it would be nice if the manuals were more complete. So that I don't burn down the forest at the end of this adventure.
Given that the 48/15000 can take a peak of 27000 watts, that means I have to find cabling that can handle 563 amps and associated circuit breakers. And before I spend all the money on breakers, and cables, yet again.......it would be nice to know they will fit in there.
So I appreciate the help. I just wish it were in the manual to begin with.
I think I will go with 2 x 250MCM cables that can each handle 461 amp at 40C. The cable has .875" finished outside diameter and I'll plan on using four of them (two positive and two negative) to connect this giant inverter. I sure hope those wires fit and that this clever idea of not using cable diameter and instead using cross section doesn't hose me in conversion after I wield this 180 pound beast up to be worked on. Now I need to find the circuit breakers.
Still not added
