Re: Dual breaker switch between solar panels and MPPT
My understanding is you only need a switch rated for the current
on the "+" side of the wiring
...meaning the red wire.
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well-preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming: Wow - what a ride!"