Blue Sea Circuit Breaker Toggle Guard The Blue Sea Circuit Breaker Toggle Guard protects circuit breakers from being accidentally switched ON or OFF. This toggle guard fits all A-Series single pole circuit breakers and 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 and includes two mounting screws. California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov Other Detail