Blue Sea 7138 187-Series 40A Thermal Circuit Breaker

The Blue Sea 7138 187-Series Thermal Circuit Breaker offers reliable circuit protection and switching in a single, easy-to-install device. Rated at 40 amps, it features a trip-free design and is fully ignition protected, making it safe for use on gasoline-powered boats. The waterproof construction and robust terminals ensure long-lasting durability, while the lever indicator provides clear visual status. This surface-mount circuit breaker is ideal for marine and automotive electrical systems.