| 摘要 |
To provide an interlock device satisfying that a draw-out type circuit breaker is firmly fixed at an operation position and a disconnected position, is always in an open state when the draw-out type circuit breaker is moved from the operation position and is moved to the operation position, and remains in the open state while the draw-out type circuit breaker is placed at a position other than the operation position and the disconnection position; the interlock device is provided with a tripping button 1 that is linked to a tripping mechanism of the draw-out type circuit breaker and an interlock rod 3 that is placed so as to be movable up and down, and is constructed so that the tripping button 1 mechanically prevents an operation to raise the interlock rod 3 unless the tripping button 1 is operated to place the draw-out type circuit breaker in the open state, so a power distribution board floor surface or a member 55 fixed on the power distribution board floor surface and the interlock rod 3 interfere with each other, thereby the draw-out type circuit breaker is fixed at a prescribed position in a power distribution board. |
