Blue Sea Systems BSS Circuit Breaker 187 Surface Mount 40A

Blue Sea Systems 7138 is a 40A 187-Series surface-mount thermal circuit breaker designed for reliable protection of high-current DC circuits in marine, RV, and industrial applications. It functions as both a circuit breaker and a switch, featuring a Type III manual reset with trip-free operation and visual trip indication. Rated for 5,000A interrupt capacity, it meets SAE J1171 and ABYC E-11 standards for ignition protection. Its durable, corrosion-resistant construction and compact footprint make it ideal for protecting battery circuits, inverters, and heavy-duty accessories.