BLUE SEA Circuit Breaker 187 SfcMt 50A
The BLUE SEA Circuit Breaker 187 SfcMt 50A is a 50-amp circuit breaker designed for marine applications, featuring a compact size of 2 x 5 x 8 inches. This unit is installed in electrical systems to protect against overloads and short circuits.
Compatibility & Applications
- Fits standard electrical panels in marine vessels.
- Mounts on various surfaces including bulkheads and dashboards.
- Replaces older circuit breakers in Blue Sea Systems installations.
- Pairs with 12V DC electrical systems commonly found in boats.
- Integrates with NMEA 2000 systems for enhanced monitoring.
- Compatible with sailboats and motorboats sized 20-40 ft.
The unit is engineered to withstand harsh marine environments and ensure reliable circuit protection. It serves as a drop-in replacement for older Blue Sea circuit breakers, simplifying upgrades during electrical system overhauls, particularly in center-console boats where space is limited.







