This site is now in read-only archive mode. Please move all discussion, and create a new account at the new Victron Community site.
I've purchased a Multiplus-II 24/3000/70, and the manual recommends a 300A fuse, but then only 50mm2 wire size - am I correct in thinking this would be undersized for a fuse of this size?
I'm also wondering if anyone has used a smaller fuse of say 175-200A?
I'd stick with the recommended size. The start current on the multiplus can be very high as its capacitors charge. If you do get a short, a 300A fuse will blow quickly.
Sorry if my questions are dumb, I'm quite new to this. Do you mean if I am not running the multi to full capacity then 50mm2 would be sufficient? The 50mm2 cables I am looking at have an amp rating of 246 at 30oC, and in all the wire size/maximum amperage charts I have seen 50mm2 is always under 300A.
