Blue Sea Systems 285-Series Thermal Circuit Breaker, 48V DC Surface Mount - 30A or 60A

The Blue Sea Systems 285-Series Thermal Circuit Breaker is a medium-duty, single-pole DC circuit breaker built for 48 Volt marine systems where reliable overcurrent protection and manual switching need to live in one compact, surface-mounted device. Each breaker combines a Trip-Free thermal element with an integrated ON/OFF switch lever, so it protects the circuit from overload and short-circuit faults while also serving as a disconnect switch for routine service and lockout. The molded case is ignition protected and water resistant, making the 285-Series a proven choice for engine rooms and other demanding onboard locations on gasoline and diesel powered vessels. The 285-Series is a direct drop-in replacement for legacy 185-Series breakers, sharing the same mounting footprint for straightforward upgrades or replacements. Choose from a 30 Amp or 60 Amp trip rating to match the load and wire gauge of the 48V circuit being protected.

Specifications

• Brand: Blue Sea Systems
• Series: 285-Series
• Voltage: 48 Volts DC
• Current Ratings: 30 Amps or 60 Amps
• Circuit Breaker Type: Standard, Trip-Free thermal
• Mounting Type: Surface Mount
• Number of Poles: 1
• Ignition Protection: Ignition protected
• Weight: approximately 0.5 pounds
• Warranty: Five-year warranty

Sizes & Options

This line is offered in two current ratings: the 7181 at 30 Amps and the 7184 at 60 Amps. Select the amperage that matches the ampacity of the wire gauge run on the 48V circuit being protected and the maximum continuous current the connected load will draw. Both models share the same 48 Volt DC rating, surface mount footprint, Trip-Free switching action, and ignition protection, so the amperage rating is the only factor that differs between the two SKUs.