The Blue Sea Systems 187 Series 60Amp Circuit Breaker integrates switching and circuit protection into a single, reliable device. Designed for clear single-lever operation, its "Trip Free" mechanism ensures it cannot remain engaged during a fault, enhancing safety. Waterproof construction with recessed mounting holes offers durability and a clean installation. It accommodates heavy gauge wire lugs with robust 5/16" M8 terminals and provides clear trip status via a large lever with vertical/horizontal indicators. Ignition protected, it meets SAE J1171 standards, making it safe for use on gasoline-powered boats. Note: not suited for high inrush current switching.