| 摘要 |
PCT No. PCT/JP83/00101 Sec. 371 Date Jun. 23, 1983 Sec. 102(e) Date Jun. 23, 1983 PCT Filed Mar. 31, 1983 PCT Pub. No. WO83/03496 PCT Pub. Date Oct. 13, 1983.A circuit breaker of the present invention provides a movable contact held by a movable contactor to be capable of passing through the interior of an arc suppressing means and to be contacted with a fixed contact from the side of the arc suppressing means. Thus, an arc generated upon an opening of the both contacts is made to shift immediately into the arc suppressing means, whereby arc dividing, cooling and suppressing are performed rapidly and the current limiting effect of the breaker is remarkably elevated.
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