To provide a circuit breaker that suitably moves an arc between contacts toward an arc-extinguishing device even in a relatively small current area without making a device large-sized.
Each electrode includes a pair of front and rear fixed contacts 2, 3 which are arranged opposite to each other, a movable contact 4 which makes a bridge connection between the fixed contacts 2, 3, and a pair of front and rear magnetic driving yokes 10 composed of permanent magnets disposed so as to hold side face parts at both ends of the movable contact 4 therebetween. In an electrode closure state, the movable contact 4 is pressed to the fixed contacts 2, 3 with a contact spring 5 to close respective electrode power supply paths. In an electrode opening state, the movable contact 4 is pressed by an opening/closing mechanism against the contact spring 5, and thereby leaves the fixed contacts 2, 3 to open the power supply paths.
SATO SUKETAKA
ONCHI TOSHIYUKI
ISOZAKI MASARU
| JP3859053B2 | 2006-12-20 | |||
| JPH10154458A | 1998-06-09 | |||
| JPS5914219A | 1984-01-25 |
Hide Tanaka Tetsu