| 摘要 |
<p>A circuit breaker in which, a stable opening and closing operation can be achieved during the ordinary opening and closing operation or the tipping operation and the isolation function is ensured upon the contact welding. A restriction member 41 is provided for engaging both the handle arm 35 and the cross bar 26 to prevent the movement of the handle 36 into the open position when the stationary contact 22 of the stationary contact member 21 and the movable contact 24 of the movable contact member 23 are welded together and when a handle 36 is moved to the open position. <IMAGE></p> |
