micander
New Member
Hi, just joined as I'm beginning my first "real" system, a small off-grid setup with mostly Victron components. This will be the 3rd solar setup I've done, first one powers a remote LTE router and camera, second is our travel trailer.
With this new system, I'm going straight to 48v so I can expand without having to replace components too much. I'm starting off with one SOK 48v/100AH battery, a Victron Multiplus 48/3000, and two 600w arrays. The two arrays will have drastically different shading so I want each on its own MPPT, thus the 100/20s. Next phase will be to add a much larger array, but this is what I have for now. Won't be powering a ton to start with, just some "always on" loads like a freezer, and some networking gear.
Here's the difficulty - fusing between the MPPTs and the battery (connected via a Lynx Power In), what in the world do I use for a fuse that is rated for 48v but only 25 or 30 amp? All the fuses I'm seeing rated for 48v (58v fuse rating) start at 100amp and go up. I have 25a DC breakers between the panels and the MPPTs, but from what I read around here I should be using fuses and not breakers between the MPPTs and the battery.
I'll try to create a proper diagram soon to help show the whole system, what I have now is just on paper and not digital. Thanks in advance!
With this new system, I'm going straight to 48v so I can expand without having to replace components too much. I'm starting off with one SOK 48v/100AH battery, a Victron Multiplus 48/3000, and two 600w arrays. The two arrays will have drastically different shading so I want each on its own MPPT, thus the 100/20s. Next phase will be to add a much larger array, but this is what I have for now. Won't be powering a ton to start with, just some "always on" loads like a freezer, and some networking gear.
Here's the difficulty - fusing between the MPPTs and the battery (connected via a Lynx Power In), what in the world do I use for a fuse that is rated for 48v but only 25 or 30 amp? All the fuses I'm seeing rated for 48v (58v fuse rating) start at 100amp and go up. I have 25a DC breakers between the panels and the MPPTs, but from what I read around here I should be using fuses and not breakers between the MPPTs and the battery.
I'll try to create a proper diagram soon to help show the whole system, what I have now is just on paper and not digital. Thanks in advance!