I have the following setup for my expedition vehicle:
The 3 panels in parallel will produce a max. current of 30A to my understanding. With a cable length of roughly 10m (5m one way), I would have to use a 16mm2. This is also the maximum the clamps on the device can handle.
My first question is how to connect the MC4 ports of the panels to the controller. Using those 3to1 MC4 bundlers and going on with a MC4 cable will not work, as I can only find solar cables up to 6mm2. Should I use 3 cable pairs in paralell right to the MPPT or bundle near the panels? Which type of string box etc. would you use? Would it be correct to use a 10A fuses on the single connections / 30A fuses on the bundled connection?
My second question is: Is it ok to als use two 1m 16mm2 with a 60A fuse to connect the MPPT to the + and - distributions?
For reference, last row: