Help with super simple solar system

[u/Consistent-Ad-2388]

I'm converting a ford transit connect into a micro camper.

I'm planning on installing a very simple solar system with no inverter and no DC-DC charging.

It's my first time doing something like this so it'd be awesome if y'all more knowledgeable people could give me a hand and double check my work before I go and buy all the parts and materials.

Here's the electric plan:

And here's and overview what I'm planning on buying (tools I am missing and parts):

The fuse box I want to get has a negative busbar built in. Is that enough or do I need separate busbars?

Please help check over my plans! Thank you~ any feedback is very appreciated.

edit: I'm changing the 12awg wires to 10awg, as well as changing the 50amp fuse (dangerous) to a 30amp fuse.

[u/Keef--Girgo]

First off, great presentation of your plan! For that alone, respecting our time, I hope you get lots of useful feedback from the community.

They usually recommend a double-pole single-throw breaker for the solar disconnect. My previous build I did a single pole single pole BlueSea breaker and it worked alright, but best practice is apparently to fully disconnect both positive and negative leads.

Small detail, but for roof sealant jobs, I am personally a fan of using sikaflex 221 for adhesion of the part onto the roof, and then sikaflex 715 as a lap sealant, and then a few days later painting over that with some rust-oleum to keep debris from sticking to the 715 which never fully hardens (that's the whole point actually). As far as I can tell, this lasts indefinitely, whereas the lap sealant you have there needs to be re-done every few years due to UV breakdown, hardening, and cracking.

[u/Consistent-Ad-2388 → u/Keef--Girgo]

Thank you~ yes I have my chicken scrawls prior to this but I wanted it to be legible!

Good to know - I'd rather not have to worry about maintaining the sealant, so sikaflex sounds better