Blue Sea 7157 Short Stop Circuit Breaker - 50A

The Blue Sea 7157 Short Stop Circuit Breaker - 50A is a corrosion-resistant DC circuit protection device engineered for demanding marine electrical systems. This 50-ampere, 28-volt circuit breaker delivers interrupt capacity of 2,500 amps at 28VDC, providing reliable overload and fault protection for boats, RVs, and off-grid power installations where saltwater exposure and vibration are constant threats.

The 7157 combines a push-to-reset-only design with an IP 64-rated water-resistant boot, meaning it resists salt spray and washdown conditions common in marine environments. The included red insulating boot provides both visual safety identification and additional moisture protection. Operating across a temperature range from -10°C to +60°C, this breaker handles the thermal swings typical of open-water and tropical boating. The corrosion-resistant construction eliminates the degradation that standard steel components suffer when exposed to salt air and spray, ensuring long service life with minimal maintenance.

This circuit breaker is ideal for boat owners, offshore anglers, and RV enthusiasts who prioritize electrical system integrity in harsh environments. Weekend fishermen protecting console electronics and bilge systems benefit from its straightforward manual reset operation, while serious offshore crews rely on its high interrupt rating to handle fault conditions safely. The 50A rating suits mid-sized DC bus configurations, from auxiliary battery banks to integrated electrical panels. Blue Sea Systems' reputation in marine-grade electrical protection makes the 7157 a standard choice for systems where failure is not an option.