Toggle actuated and raised rocker circuit breakers can be accidentally switched. While this could be only a nuisance in some situations, it could have serious consequences if the circuit breaker is in a 24-hour circuit for a bilge pump.
Two flat actuator designs that resist accidental switching are Flat Rocker and Restricted OFF Flat Rocker circuit breakers. Both designs have actuators that are flush in the ON position, and the Restricted OFF design (also known as Slot Reset) can only be switched OFF by inserting a small screwdriver into the slot.
Blue Sea Systems offers Flat Rocker circuit breakers in C-Series large case and A-Series small case sizes, and Restricted OFF Flat Rocker circuit breakers in A-Series small case size. All amperages fit the same panel aperture. All types are magnetic-hydraulic, and their trip free design means that they cannot be held ON during a fault condition. They are marked with international ON/OFF symbols for vertical or horizontal mounting.