| 摘要 |
The present invention relates to a branching circuit breaker, and more particularly, to a branching circuit breaker with an integrated arc gas blocking unit including a blocking means for blocking conductive arc gas emitted by cutting off a short-circuit current. The branching circuit breaker includes: a front case part formed in the front thereof; and a rear case part detachably combined with the front case part, in which a terminal is formed in upper and lower sides of the rear case part in order to connect a power line for power distribution to the lower side and to connect a sub bus bar to the upper side. The front case part includes an upper arc gas blocking unit which is integrated with the front case part to interpose a connection terminal formed on the upper side of the rear case part and is extended to the upper side of the rear case part. The branching circuit breaker prevents the conductive arc gas generated when cutting off the short-circuit current from being transferred to the sub bus bar connected with an adjacent branching circuit breaker. |
