Parallel connecting 4 100w panels

[Wandererrr]

Also, we have this going into the charge controller from the joined positive wire from the solar panels. Does that change anything? Bumbesti 15 Amps Fuse Holders 15-150A Inline Circuit Breaker Manual Reset Fuses 12V-24V DC for Automotive Marine Boat Audio Solar System Inverter Amps Overload Protection Set https://a.co/d/faL6Dhd

 

[Tomthumb62]

You answered my question. The back of the panels say the fuse rating should be 15a. So I’ll get four 15a fuses and one set of two 4to1 branch connectors, then I’ll be all good?

Edit:
Does it matter if I get different brands, or if they’re solid pieces vs lengthy cords, like these two different options
PAEKQ 4 to 1 Solar Panel Connectors T Branch Connectors Cable Splitter Coupler 1 Male to 4 Female (M/4F) and 1 Female to 4 Male (F/4M) for Parallel Connection Between Solar Panels (1 Pair) https://a.co/d/iECppRD
Vs
BougeRV Solar Y Branch Connectors Extra Long Solar Panel Parallel Connectors 1 to 4 Solar Cable Wire Plug Tool Kit (M/FFFF and F/MMMM) https://a.co/d/3Nnkh5v

And are there a lot of varying factors between different brands of fuses? Or will it be safe to get the cheapest option?

Yep you’re good.

It’s a good idea to put in a cutoff switch for maintenance but not necessary either. This way you can disconnect the panels from the charge controller.

 

[Wandererrr]

Want to check with everyone, is getting both of these, with a budget in mind, a solid plan
Limited-time deal: A ABIGAIL Solar Connectors Y Branch Parallel Adapter Cable Wire Plug Tool Kit for Solar Panel 1 to 4 Solar Panel Connectors Wire Plug (M/FFFF, F/MMMM) https://a.co/d/97zoALU
BougeRV 5PCS 15A Solar Fuses Holder Inline, 5PCS PV Inline Fuse Holders 15 Amp for Solar Panel and Solar Controller, Waterproof Solar Fuse Connector, Solar Surge Protection Device https://a.co/d/gN9mB4R