Blue Sea 7144 100A 187-Series Surface Mount Breaker

The Blue Sea 7144 187-Series Thermal Circuit Breaker combines switching and circuit protection into a single 100A device. It is designed for boaters who need a heavy-duty manual breaker with a clear indication of trip status at a glance.

A large lever provides vertical or horizontal position indication for instant trip status, and the trip-free design means it can't be held ON during a fault current condition. The surface-mount case bolts directly to a flat surface without a panel cutout, making it a straightforward retrofit anywhere a hole saw isn't practical. It's fully waterproof with recessed mounting holes for a clean install, robust 5/16-inch terminals for high-torque connections, and ignition protected to SAE J1171 for safe use aboard gasoline-powered boats. Browse more options in our panels, switches, and circuit breakers category.

Key Features: 100A rating, thermally responsive bi-metal blade design, waterproof, surface-mount case bolts to a flat surface, no panel cutout required, large lever shows trip status by orientation, ignition protected to SAE J1171, sold individually.

Frequently Asked Questions

How do I know if this breaker has tripped? The large lever's vertical or horizontal orientation provides a clear visual indication of trip status.

Is this the panel mount or surface mount version? This is the Surface Mount version.

Is this breaker safe for gasoline-powered boats? Yes, it's ignition protected to SAE J1171 for safe installation aboard gasoline-powered boats.