Title:
CIRCUIT BREAKER
Document Type and Number:
Japanese Patent JP2011034714
Kind Code:
A
Abstract:
To provide a circuit breaker of good assemblability with reduced number of assembling steps and components, for a lower cost, capable of preventing degradation in insulation between phases caused by sticking of arc gas after cutting off.
A base 1 and a plurality of current transformers 6 are engaged with each other using grooves and ribs. Further, the plurality of current transformers 6 and a case 8b of a control unit 8 arranged above them are engaged with each other using the grooves and ribs, and the inside of an earth leakage breaker is separated into an opening/closing contact side and a zero-phase current transformer side by the control unit 8 and a cover 2.
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Inventors:
IWAMOTO NAOAKI
NOMURA TOSHIMITSU
SUGIMOTO YASUHIRO
TSUKAMOTO TATSUYUKI
NOMURA TOSHIMITSU
SUGIMOTO YASUHIRO
TSUKAMOTO TATSUYUKI
Application Number:
JP2009177734A
Publication Date:
February 17, 2011
Filing Date:
July 30, 2009
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H01H83/02
Domestic Patent References:
| JPH07153364A | 1995-06-16 | |||
| JPH0589768A | 1993-04-09 | |||
| JP2004095222A | 2004-03-25 | |||
| JP2000173438A | 2000-06-23 | |||
| JPH0612966A | 1994-01-21 | |||
| JP2003522390A | 2003-07-22 | |||
| JPH07153364A | 1995-06-16 |
Attorney, Agent or Firm:
Shogo Takahashi
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka
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