Blue Sea Systems 7138-BSS 187 Series Surface Mount DC Circuit Breaker 40 Amp

The Blue Sea Systems 7138-BSS is a 40 Amp surface mount thermal circuit breaker designed for 12V to 48V DC electrical systems in marine, RV, and automotive applications. This reliable 187 Series breaker provides essential overcurrent protection with manual reset capability, allowing you to quickly restore power after a trip event.

Key Features:

• 40 Amp continuous rating at 48 Volts DC maximum
• Thermal circuit breaker technology for reliable overcurrent protection
• Surface mount design for easy panel installation
• 5/16 inch-18 threaded stud terminals for secure wire connections
• Switchable with manual reset—doubles as both switch and circuit protection
• Single pole configuration
• Push-to-trip button for manual interruption
• Ignition protected for safe use in gasoline engine spaces

Blue Sea Systems circuit breakers are built to meet rigorous marine standards and provide dependable performance in demanding environments. The compact surface mount design saves valuable panel space while the manual reset feature ensures you maintain control over your electrical system. Ideal for protecting branch circuits, pumps, electronics, and other DC loads.