Is a fuse a fuse?
I'm fusing my solar panels individually in the combiner box before they are combined. Initially, I purchased the 15a MC-4 fuse holder and the connectors. This came out to about 6-1/2" long. Too lon...
Forum Discussion
Yes with three panels the array (-1) may exceed the individual panel rating.
MC4 is designed to use outside of a box. If you have them and the panels still have the connectors you can certainly use them snapped on the end of the panel connector.
3 to 1 MC4 connector.
Of course to really clean things up you may need to cut the cables and attach your own MC4 at the proper length. At that point you only need a basic box to seal the cable entry on the roof.
Can also get MC4 with #8 wire if you prefer for the run down to the controller. Just cut the cable in half with the MC4 attached to the 3 to 1 adapter and the cut end on the controller.
Just an additional option to consider.
MC4 is designed to use outside of a box. If you have them and the panels still have the connectors you can certainly use them snapped on the end of the panel connector.
3 to 1 MC4 connector.
Of course to really clean things up you may need to cut the cables and attach your own MC4 at the proper length. At that point you only need a basic box to seal the cable entry on the roof.
Can also get MC4 with #8 wire if you prefer for the run down to the controller. Just cut the cable in half with the MC4 attached to the 3 to 1 adapter and the cut end on the controller.
Just an additional option to consider.
