Fusing solar

Rail Dawg wrote:
I’ll fuse at 30 amps between the solar and controller.

There’s also a 30-amp fuse at the battery installed by the manufacturer.

Do appreciate the input!

As long as the ampacity of the wire from the panels to the controller exceeds the Isc rating of the panels... no fuse is needed. You can short the wires all day long with no harm to the wire or panels. A DC rated switch might prove useful to cut power to the controller for service. Most controllers need the solar power disconnected before disconnecting from the battery. Or you can remove that fuse.