EP0827173A4 - Circuit breaker - Google Patents

Circuit breaker

Info

Publication number
EP0827173A4
EP0827173A4 EP96906042A EP96906042A EP0827173A4 EP 0827173 A4 EP0827173 A4 EP 0827173A4 EP 96906042 A EP96906042 A EP 96906042A EP 96906042 A EP96906042 A EP 96906042A EP 0827173 A4 EP0827173 A4 EP 0827173A4
Authority
EP
European Patent Office
Prior art keywords
handle
open circuit
circuit breaker
circuit position
link
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96906042A
Other languages
German (de)
French (fr)
Other versions
EP0827173B1 (en
EP0827173A1 (en
Inventor
Haruhisa Toda
Kohei Kurata
Sinsaku Yamasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP0827173A1 publication Critical patent/EP0827173A1/en
Publication of EP0827173A4 publication Critical patent/EP0827173A4/en
Application granted granted Critical
Publication of EP0827173B1 publication Critical patent/EP0827173B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/501—Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/522—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism
    • H01H71/525—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism comprising a toggle between cradle and contact arm and mechanism spring acting between handle and toggle knee

Landscapes

  • Breakers (AREA)

Abstract

A circuit breaker having a small-sized handle arm (59), wherein a handle (62) is prevented from moving to the open circuit position when a movable contact (44a) and a stationary contact (43a) are fused. A toggle link mechanism (58) includes a link (54) opposed to the handle, and the link (54) is provided with a cam (54a). When the handle (62) is moved to the open circuit position at the time of fusing of the contacts, the cam (54a) is engaged with a bent portion (59a) of the handle arm (59) and prevents the movement of the handle (62) to the open circuit position.
EP96906042A 1996-03-15 1996-03-15 Circuit breaker Expired - Lifetime EP0827173B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1996/000670 WO1997035333A1 (en) 1996-03-15 1996-03-15 Circuit breaker

Publications (3)

Publication Number Publication Date
EP0827173A1 EP0827173A1 (en) 1998-03-04
EP0827173A4 true EP0827173A4 (en) 2000-05-17
EP0827173B1 EP0827173B1 (en) 2006-10-18

Family

ID=14153043

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96906042A Expired - Lifetime EP0827173B1 (en) 1996-03-15 1996-03-15 Circuit breaker

Country Status (6)

Country Link
EP (1) EP0827173B1 (en)
JP (1) JP3814671B2 (en)
KR (1) KR100336946B1 (en)
DE (1) DE69636639T2 (en)
TW (1) TW353756B (en)
WO (1) WO1997035333A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3057155B2 (en) * 1998-08-07 2000-06-26 寺崎電気産業株式会社 Circuit breaker
US6166344A (en) * 1999-03-23 2000-12-26 General Electric Company Circuit breaker handle block
EP1143477B1 (en) * 2000-04-07 2007-02-28 Hager Electro S.A. Safety device for an electrical apparatus like a circuit-breaker type
KR100618607B1 (en) * 2004-12-07 2006-09-08 엘에스산전 주식회사 Mechanism structure of circuit breaker
JP4552655B2 (en) * 2005-01-12 2010-09-29 富士電機ホールディングス株式会社 Circuit breaker
KR200419048Y1 (en) * 2006-03-17 2006-06-16 엘에스산전 주식회사 A Mould Cased Circuit Breaker
JP4857881B2 (en) * 2006-04-14 2012-01-18 富士電機機器制御株式会社 Circuit breaker
JP5595827B2 (en) * 2010-08-06 2014-09-24 河村電器産業株式会社 Circuit breaker
JP2016033892A (en) * 2014-07-31 2016-03-10 河村電器産業株式会社 Circuit breaker
JP6395676B2 (en) * 2015-07-31 2018-09-26 三菱電機株式会社 Circuit breaker
CN106206193B (en) * 2016-08-29 2019-05-21 苏州未来电器股份有限公司 The quick-release mechanism of breaker

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0516448A2 (en) * 1991-05-29 1992-12-02 Eaton Corporation Circuit breaker with positive on/off interlock
US5304765A (en) * 1990-04-03 1994-04-19 Westinghouse Electric Corp. Circuit breaker positive off interlock
GB2286290A (en) * 1994-02-03 1995-08-09 Kloeckner Moeller Gmbh Circuit breaker with blocking mechanism

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58201221A (en) * 1982-05-20 1983-11-24 寺崎電気産業株式会社 Electric switch
JPS58201223A (en) * 1982-05-20 1983-11-24 寺崎電気産業株式会社 Electric switch
JPS58201222A (en) * 1982-05-20 1983-11-24 寺崎電気産業株式会社 Electric switch
ZA898764B (en) * 1988-12-08 1990-08-29 Westinghouse Electric Corp Electrical circuit breaker handle locking apparatus
US5200724A (en) * 1989-03-30 1993-04-06 Westinghouse Electric Corp. Electrical circuit breaker operating handle block
US5165532A (en) * 1991-05-29 1992-11-24 Westinghouse Electric Corp. Circuit breaker with interlock for welding contacts
JPH07302534A (en) * 1994-05-10 1995-11-14 Fuji Electric Co Ltd Opening and closing mechanism of circuit breaker

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5304765A (en) * 1990-04-03 1994-04-19 Westinghouse Electric Corp. Circuit breaker positive off interlock
EP0516448A2 (en) * 1991-05-29 1992-12-02 Eaton Corporation Circuit breaker with positive on/off interlock
GB2286290A (en) * 1994-02-03 1995-08-09 Kloeckner Moeller Gmbh Circuit breaker with blocking mechanism

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9735333A1 *

Also Published As

Publication number Publication date
EP0827173B1 (en) 2006-10-18
DE69636639T2 (en) 2007-08-23
TW353756B (en) 1999-03-01
EP0827173A1 (en) 1998-03-04
JP3814671B2 (en) 2006-08-30
WO1997035333A1 (en) 1997-09-25
KR19990008310A (en) 1999-01-25
DE69636639D1 (en) 2006-11-30
KR100336946B1 (en) 2002-10-25

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