Blue Sea 7036 30A 187-Series Panel Mount Breaker

The Blue Sea Systems 7036 is a 30 amp panel mount breaker in the 187 Series, rated to 48 volts DC.

Thirty amps is the smallest panel mount rating here, matching 10 AWG cable in typical marine service. It suits a circuit that has outgrown a 15A panel breaker but is nowhere near needing a main: an electronics feed, a small pump circuit, or a cabin lighting run on a larger boat.

The round self-trimming case is worth having even at this size. One hole saw cut and the case finishes its own edge, with no bezel and no filing. That matters more on a small breaker than a large one, because the alternative at 30 amps is usually an inline fuse hidden behind a panel where nobody can see it has blown.

Interrupt capacity is 5,000 amperes at 12 volts DC, 3,000 at 24 and 1,500 at 42, in Type III class with manual reset and trip free operation. Recessed mounting holes keep the face clean, 5/16 studs take heavy gauge lugs, and it is waterproof and ignition protected to SAE J1171. Explore more marine circuit breakers.

• 30A, the smallest panel mount in the series
• Matches 10 AWG in typical marine service
• For a circuit past a 15A breaker but short of a main
• Beats an inline fuse hidden behind a panel