Patent ID: 7399934

Claim:
An external operation handle device for conducting open and close operations on a circuit breaker with a locker handle, comprising: a rotary handle equipped with a handle lock lever, a drive mechanism for linking the rotary handle and the locker handle of the circuit breaker, and a door lock lever for interlocking between the rotary handle and a door of the board so that by operating the rotary handle, the circuit breaker can be turned to an ON or OFF position, and the door is unlocked at an OPEN position, wherein the handle lock lever is slidably disposed on the rotary handle to be anchored and held at a pulled out position in a condition where the rotary handle at the OPEN position unlocks the door of the board, and the door lock lever linked to the rotary handle is cramped and held at the unlock position in a condition where the rotary handle is at the OPEN position.