| 摘要 |
In order to provide a circuit breaker such that a permanent magnet for driving an arc at the time of cutoff is not exposed to the high heat of the arc, the present invention is provided with: a base (11); power-source-side terminals (24) that are arrayed leaving spaces therebetween on the base (11); affixed terminals (27) connected to the power-source-side terminals (24) and having affixed contacts (21); mobile terminals (23) having mobile contacts (22) that contact and separate from the affixed contacts (21); an arc extinguishing device (50) that extinguishes the arc arising between the affixed contacts (21) and the mobile contacts (22); and a permanent magnet (54) provided on the power-source-side terminal (24) side of the arc extinguishing device (50). |
