I believe, Victron specs wire and fuse size in the manual.Joey, if you could indicate the wire sizing for the inverter to battery (say 600mm length) i'd be grateful. I was thinking of using 600A welding cable, but wasn't sure of the continuous use rating? I dont expect to draw anywhere near that current, but i'd rather spend a bit extra on wiring than be unsure. Thanks
Apart from wire size you need to pay attention to insulation temperature rating.