Patent ID: 9305724
Filing Date: 2016-04-05
CPC Classification: H01H,H02B

Claim Text:
1. A circuit breaker comprising: a first arc-extinguishing part including at least one arc-extinguishing chamber and a second arc-extinguishing part including at least one arc-extinguishing chamber, all of the arc-extinguishing chambers being connected serially and each of the arc-extinguishing chambers interrupting a current by simultaneously opening contact points within each of the arc-extinguishing chambers to extinguish an arc while the current is being interrupted in each arc-extinguishing chamber; a connection unit that connects the first arc-extinguishing part and the second arc-extinguishing part to each other, and a hermetic tank in which the first arc-extinguishing part, the second arc-extinguishing part, and the connection unit are accommodated, wherein the first arc-extinguishing part and the second arc-extinguishing part are connected to the connection unit in such a manner that shaft lines of the first arc-extinguishing part and the second arc-extinguishing part form an angle of substantially 90 degrees, wherein the first arc-extinguishing part is arranged on a side of the connection unit in such a manner that the shaft line thereof is substantially horizontal, and the second arc-extinguishing part is arranged on an upper side of the connection unit in such a manner that the shaft line thereof is substantially vertical.