Blue Sea Systems 4100 Toggle Guard is a Blue Sea Systems circuit breaker built for switch control in marine electrical systems. Designed for marine environments, it supports reliable performance, clean installation, and long service life in demanding onboard electrical systems.
4100 Toggle Guard Features: Protects circuit breakers from being accidentally switched ON or OFF Fits all A-Series single pole circuit breakers Fits all panel switches Can be used on any brand of circuit breaker panel using standard toggle type circuit breakers Uses circuit breaker mounting screw hole Includes 2 mounting screws .
Key specs: Poles: Single.
Ideal for builders, refit projects, and serious boat owners who want marine-grade electrical hardware from a trusted brand.














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