Title:
CIRCUIT BREAKER
Document Type and Number:
Japanese Patent JP2012221759
Kind Code:
A
Abstract:
To provide a circuit breaker in which commutation of an arc is facilitated and cutoff performance can be enhanced.
Arc runners 39a and 39b are composed of a high resistance member having a higher volume resistivity than those of fixed contact 33 and 34 and a movable contact 35. Permanent magnets 40a and 40b which make an electromagnetic force act so that an arc 41 commutated to the arc runners moves toward an arc-extinguishing device 36 are arranged to face each other on the side surfaces of the arc runners 39a and 39b.
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Inventors:
YAMAUCHI YOSHINORI
ONCHI TOSHIYUKI
ISOZAKI MASARU
ONCHI TOSHIYUKI
ISOZAKI MASARU
Application Number:
JP2011086718A
Publication Date:
November 12, 2012
Filing Date:
April 08, 2011
Export Citation:
Assignee:
FUJI ELECTRIC CO LTD
FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO LTD
FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO LTD
International Classes:
H01H73/18; H01H33/10; H01H33/12
Domestic Patent References:
| JP2004363038A | 2004-12-24 | |||
| JP2005216807A | 2005-08-11 | |||
| JPH10154458A | 1998-06-09 |
Attorney, Agent or Firm:
Ichi Hirose
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