BEP Marine 80A Heavy Duty Circuit Breaker Module

The BEP Marine 80A Heavy Duty Circuit Breaker Module is a Bussmann thermal breaker in the Contour Lock format, for windlasses and davit winches.

A resettable thermal breaker rather than a fuse is what suits a windlass. These loads trip protection occasionally in normal use when an anchor snags or a winch stalls. With a fuse that means finding a spare on a pitching foredeck. With this it means pressing a button once the cause is cleared.

It doubles as an isolator, letting the circuit be switched off for service without disconnecting cables at the battery. The thermal element responds to sustained over-current rather than the brief surge a motor draws on starting, where a magnetic-only device would nuisance-trip.

The Contour Lock molding format groups compatible modules into a larger panel, so protection for further circuits is added later without the panel looking assembled piecemeal. That matters on a refit, where circuits get added over several seasons rather than all at once. Explore more marine circuit breakers.

• Resettable, unlike a fuse that needs a spare aboard
• Windlass loads trip protection in normal use
• Doubles as an isolator for service
• Contour Lock format groups into a larger panel