Existing 20A breaker vs. manufacturer-required 30A breaker for 12V fridge
Hey yall. I am replacing my RV’s 12V refrigerator. The new fridge manufacturer’s instructions say:
“Adding a 30-amp fuse/breaker by the batteries for the new fridge wire.
My existing refrigerator circuit already has 10 AWG wire, but it currently has a 20A circuit breaker near the batteries.
So I’m confused about the 20A → 30A breaker part.
If the existing wire is confirmed to be 10 AWG, can I simply replace the existing 20A breaker with a 30A breaker for the new refrigerator, or is there a reason I would need to install a completely separate 30A circuit?
Is the manufacturer saying “30A because the fridge requires a 30A-protected circuit,” or does the 30A breaker only apply when running a new wire from the batteries
I’m trying to understand whether I’m looking at a simple 20A breaker → 30A breaker swap or a new circuit installation.