I've noticed Victron often recommends using 2 conductors each for negative and positive DC input to inverters, and it's unclear to me whether each conductor should be fused separately. I'm looking at battery fuse and cable sizing recommendations in the manual here: https://www.victronenergy.com/upload/documents/Manual-Quattro-5k-8k-10k-15K-100-100A-230V-(firmware-xxxx4xx)-EN-NL-FR-DE-ES-SE-IT.pdf.
What's confusing to me is for the 48 V, 8 kVA Quattro, it recommends a 300 A fuse, and 2x 50 mm^2 conductors for each positive and negative. I believe a 50mm^2 conductor can carry 235 A, so it seems to me it's recommending to use a single fuse for both cables. This makes me uneasy though; I thought each conductor should be protected by a fuse rated for its ampacity.
So if the answer is that the two wires share a single fuse, when connecting to a Lynx Distributor, does that mean that I would be fixing both conductor terminals to a single bolt (1 of the 4) on the distributor?
Thanks for your help.