Blue Sea Systems 7144 187-Series Circuit Breaker, Surface Mount, 100A

• Combines switching and circuit protection into a single device with clear, single-lever operation
• "Trip Free" design prevents holding the switch "ON" during fault conditions for enhanced safety
• Fully waterproof construction with recessed mounting holes for a clean, streamlined appearance
• Ample space around terminal studs accommodates heavy-gauge wire lugs; robust 5/16 M8 terminals provide secure, high-torque connections
• Ignition-protected for safe installation aboard gasoline-powered boats, meeting SAE J1171 external ignition protection standards

Durable, Waterproof Circuit Breakers for Reliable Power Protection Designed for seamless switching and circuit protection, these high-performance breakers offer single-lever operation in a robust, waterproof casing. Recessed mounting holes ensure a clean appearance, while the self-trimming case eliminates the need for additional panels or bezels—making installation effortless with a standard hole saw. Built for high-torque connections, the large clearance around the 5/16" terminal studs accommodates heavy-gauge wire lugs, providing secure and efficient power distribution. With ignition protection, these breakers are safe for use aboard gasoline-powered boats.