Circuit breaker operating handle locking device

摘要

A locking device is provided for use with a circuit breaker operating handle to selectively keep the handle locked and prevented from moving between ON and OFF positions. The locking device includes a support frame with at least two oppositely directed mounting grips for securing the frame to the circuit breaker housing, and a locking arm movably disposed on support means extending from the support frame for movement between at least first and second engaged positions and a disengaged position. The locking arm prevents the operating handle from moving from the ON position to the OFF position when it is in the first engaged position and prevents the operating handle from moving from the OFF position to the ON position when it is in the second engaged position. A bracket on the support frame receives a locking member for securing the locking arm in either of the one engaged positions.