Blue Sea 7141 187 - Series Thermal Circuit Breaker - 70Amp

The Blue Sea 7141 187-Series Thermal Circuit Breaker – 70Amp is an essential component for serious boaters and commercial fishermen who prioritize electrical safety on the water. This marine-grade breaker is designed to handle the 70-amp loads typical of modern marine engines and battery systems, providing reliable protection against overloads and short circuits.

Engineered specifically for marine environments, the 187-Series construction withstands salt spray, vibration, and thermal cycling, ensuring durability and performance. Its thermal design eliminates the need for external fuses, delivering precise protection without nuisance tripping during normal operation, making it a critical specification for boats with mid-to-large engine outputs.

This breaker is ideal for anyone upgrading or troubleshooting a marine electrical system, whether installing new electronics or adding a secondary battery bank. Its compact design allows for easy installation in tight engine compartments, ensuring minimal impact on weight distribution while maintaining safety and reliability.