Title:
CIRCUIT BREAKER
Document Type and Number:
Japanese Patent JP2011081988
Kind Code:
A
Abstract:
To prevent a contact point of a second movable contactor from loss by arc without lowering a breaking performance.
A repulsion type circuit breaker is equipped with a first movable contactor 3 and the second movable contactor 15. At a tip of the second movable contactor 15, a protrusion portion 15c is mounted more projected than a contact surface of a second movable contact 15a. By moving an arc generated at a second movable contact 15a side from the second movable contact 15a to the protrusion portion 15c, loss of the contact 15a of the second movable contactor 15 is prevented.
Inventors:
ONCHI TOSHIYUKI
ISOZAKI MASARU
WATANABE KAZUYUKI
SATO AKIFUMI
ISOZAKI MASARU
WATANABE KAZUYUKI
SATO AKIFUMI
Application Number:
JP2009232396A
Publication Date:
April 21, 2011
Filing Date:
October 06, 2009
Export Citation:
Assignee:
FUJI ELEC FA COMPONENTS & SYS
International Classes:
H01H9/46; H01H33/20; H01H73/02; H01H73/04
Domestic Patent References:
| JPH07282710A | 1995-10-27 | |||
| JP2007257906A | 2007-10-04 | |||
| JPS57136714A | 1982-08-23 |
Attorney, Agent or Firm:
Yoichi Matsumoto
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