I have a subpanel almost wired in our shed, it's being converted into a tiny home for a few months, it's about 25ft from the main panel which is inside of a mobile home. The main panel I believe is 100 AMPS. The subpanel that is installed in the shed is 125AMP. It has 2 30amp breakers and 3 15 amp breakers installed. I need an opinion or 2 before proceeding.
Is it safe to wire the subpanel to the main panel? I don't think the sub will use even half of the capacity, so could I put a smaller breaker in the main?