Moulded black plastic, removable locking mechanism designed to prevent accidental or unintended actuation of essential circuit breakers from either the on or off position.

As used on the BEP Battery Management panels, 113667-79. Suitable for use with breakers on Contour, Contour AC, Cruiser and Millenium breaker control panels. When installed, a breaker will still trip in the event of overload even with the lever locked in the on position.