SKU: CW20558
UPC: 632085171384
MPN: 7138
The Blue Sea 7138 187-Series Thermal Circuit Breaker – 40Amp is a marine-grade electrical protection device engineered for serious boaters who demand reliability in both saltwater and freshwater environments. This breaker is essential for preventing electrical failures that can leave you stranded far from shore.
Built around thermal-magnetic trip technology, the 187-Series responds instantly to short circuits while accommodating brief inrush surges typical of motors and pumps found on fishing boats. With a 40-amp rating, it protects high-demand circuits like bilge pumps and trolling motors without nuisance tripping during normal operation.
This breaker is designed for easy mounting into standard marine DC panelboards and meets UL and USCG standards for marine electrical systems. Whether upgrading an aging electrical panel or installing a new console, the Blue Sea 7138 is the ideal choice for anglers and boaters who prioritize safety and performance.
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