GB1461217A - Circuit breaker - Google Patents

Circuit breaker

Info

Publication number
GB1461217A
GB1461217A GB812775A GB812775A GB1461217A GB 1461217 A GB1461217 A GB 1461217A GB 812775 A GB812775 A GB 812775A GB 812775 A GB812775 A GB 812775A GB 1461217 A GB1461217 A GB 1461217A
Authority
GB
United Kingdom
Prior art keywords
handle
contacts
blocking member
toggle
movement
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.)
Expired
Application number
GB812775A
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.)
Merlin Gerin SA
Original Assignee
Merlin Gerin SA
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 Merlin Gerin SA filed Critical Merlin Gerin SA
Publication of GB1461217A publication Critical patent/GB1461217A/en
Expired 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
    • 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
    • H01H71/504—Manual reset mechanisms which may be also used for manual release provided with anti-rebound means
    • 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
    • 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
    • H01H71/62—Manual reset mechanisms which may be also used for manual release with means for preventing resetting while abnormal condition persists, e.g. loose handle arrangement
    • H01H71/64—Manual reset mechanisms which may be also used for manual release with means for preventing resetting while abnormal condition persists, e.g. loose handle arrangement incorporating toggle linkage

Landscapes

  • Breakers (AREA)

Abstract

1461217 Automatic circuit breakers MERLIN GERIN 26 Feb 1975 [1 March 1974 9 Dec 1974] 8127/75 Heading H1N In a circuit breaker of the type comprising in a moulded insulating casing co-operating fixed 10 and movable 12 contacts, an operating mechanism including a toggle 22, 24 for moving said movable contact, and a manually operable handle 18 movable between OFF and ON positions, wherein a blocking member 62 is positioned in the path of movement of the handle to prevent it moving to the OFF position when the contacts are closed, the blocking member is arranged to allow limited handle movement from the ON position towards the OFF position insufficient to collapse the toggle 22, 24 but sufficient to allow the mechanism to be tripped to open the contacts, the blocking member being moved out of the path of movement of the handle when the contacts open. This arrangement prevents movement of the handle to the OFF position if the contacts are welded together. The trip device operated by the handle comprises an arm 76 biased to engage a crank 82 which retains it when the handle is in the ON position but which is displaced to release it when the handle moves. Tripping of the circuit breaker under overload conditions is performed by a further tripping mechanism wherein rotation of a trip bar 56 releases a latch 48 and thus a cradle 28 which is rotated by a spring 32 to collapse toggle 22, 24 and open the contacts 10, 12. In further embodiments the blocking member takes the form of an arm engaging a trip lever connecting the handle and a trip device, Fig. 12, not shown, or a pin engaging a finger secured to handle 18, Fig. 13, not shown, or an extension of the toggle linkage, Fig. 14, not shown.
GB812775A 1974-03-01 1975-02-26 Circuit breaker Expired GB1461217A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR7407529A FR2262859B1 (en) 1974-03-01 1974-03-01
FR7440391A FR2294536A2 (en) 1974-03-01 1974-12-09 ELECTRIC CIRCUIT BREAKER IN MOLDED BOX WITH CONTACT WELDING INDICATOR
DE19752508220 DE2508220A1 (en) 1974-03-01 1975-02-26 ELECTRIC SELF-SWITCH WITH INDICATION OF A CONTACT WELD

Publications (1)

Publication Number Publication Date
GB1461217A true GB1461217A (en) 1977-01-13

Family

ID=27186288

Family Applications (1)

Application Number Title Priority Date Filing Date
GB812775A Expired GB1461217A (en) 1974-03-01 1975-02-26 Circuit breaker

Country Status (4)

Country Link
BE (1) BE826034A (en)
DE (1) DE2508220A1 (en)
FR (2) FR2262859B1 (en)
GB (1) GB1461217A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008034530A1 (en) * 2006-09-20 2008-03-27 Moeller Gmbh Electric switching device
CN103797558A (en) * 2011-12-16 2014-05-14 现代重工业株式会社 Trip device and circuit breaker for electric wiring having same
EP3291274A4 (en) * 2015-04-28 2018-12-05 Seari Electric Technology Co., Ltd. Fusion welding isolation mechanism for operating mechanism of circuit breaker
EP3291273A4 (en) * 2015-04-28 2018-12-05 Seari Electric Technology Co., Ltd. Operating mechanism of circuit breaker
EP3291276A4 (en) * 2015-04-28 2019-01-23 Seari Electric Technology Co., Ltd. Secondary latch mechanism for operating mechanism of circuit breaker

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1091548B (en) * 1977-01-24 1985-07-06 Merlin Gerin AUTOMATIC SWITCH WITH A SWIVEL HANDLE
DE2808609C3 (en) * 1978-02-28 1980-09-18 Siemens Ag, 1000 Berlin Und 8000 Muenchen Low voltage toggle switch
FR2436491A1 (en) * 1978-09-12 1980-04-11 Merlin Gerin LOW VOLTAGE MULTIPOLAR ELECTRIC CIRCUIT BREAKER WITH AUXILIARY CONTROL BLOCKS
DE3033213C2 (en) * 1980-08-29 1982-10-21 Siemens AG, 1000 Berlin und 8000 München Low voltage circuit breaker with a locking lever
FR2506066A1 (en) * 1981-05-18 1982-11-19 Merlin Gerin MANEUVERING MECHANISM OF A LOW VOLTAGE MULTIPOLAR ELECTRIC CIRCUIT BREAKER
IT8223118V0 (en) * 1982-10-07 1982-10-07 Sace Spa ELECTRIC SWITCH WITH STOPPING THE CONTROL LEVER STROKE IN CASE OF WELDING THE CONTACTS.
US5142112A (en) * 1990-04-03 1992-08-25 Westinghouse Electric Corp. Circuit breaker positive off interlock
FR2704354B1 (en) * 1993-04-20 1995-06-23 Merlin Gerin CONTROL MECHANISM OF A MODULAR ELECTRIC CIRCUIT BREAKER.
US5927484A (en) * 1997-05-28 1999-07-27 Eaton Corporation Circuit breaker with welded contact interlock, gas sealing cam rider and double rate spring
FR2783349B1 (en) * 1998-09-11 2000-11-24 Schneider Electric Ind Sa DEVICE LIMITING THE STROKE OF A CONTROL HANDLE OF AN ELECTRICAL SWITCHING APPARATUS, IN THE EVENT OF WELDING OF THE CONTACTS
DE19841685C2 (en) * 1998-09-11 2002-10-31 Aeg Niederspannungstech Gmbh switch

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008034530A1 (en) * 2006-09-20 2008-03-27 Moeller Gmbh Electric switching device
CN101601115B (en) * 2006-09-20 2012-07-04 默勒有限公司 Electric switching device
CN103797558A (en) * 2011-12-16 2014-05-14 现代重工业株式会社 Trip device and circuit breaker for electric wiring having same
EP2736064A1 (en) * 2011-12-16 2014-05-28 Hyundai Heavy Industries Co., Ltd. Trip device and circuit breaker for electric wiring having same
EP2736064A4 (en) * 2011-12-16 2015-04-29 Hyun Dai Heavy Ind Co Ltd Trip device and circuit breaker for electric wiring having same
EP3291274A4 (en) * 2015-04-28 2018-12-05 Seari Electric Technology Co., Ltd. Fusion welding isolation mechanism for operating mechanism of circuit breaker
EP3291273A4 (en) * 2015-04-28 2018-12-05 Seari Electric Technology Co., Ltd. Operating mechanism of circuit breaker
EP3291276A4 (en) * 2015-04-28 2019-01-23 Seari Electric Technology Co., Ltd. Secondary latch mechanism for operating mechanism of circuit breaker

Also Published As

Publication number Publication date
FR2262859B1 (en) 1977-09-23
FR2262859A1 (en) 1975-09-26
FR2294536B2 (en) 1978-12-29
BE826034A (en) 1975-06-16
FR2294536A2 (en) 1976-07-09
DE2508220A1 (en) 1975-09-04

Similar Documents

Publication Publication Date Title
GB1461217A (en) Circuit breaker
GB1288716A (en)
GB1393799A (en) Circuit breaker
GB1196797A (en) Improvements in Current-Limiting Electric Circuit Breakers.
GB1222456A (en) A current-limiting circuit breaker
US2306235A (en) Circuit breaker
GB1243475A (en) Molded-case electric circuit breaker with contact arm latch
KR870002624A (en) Circuit breaker with magnetic flux shunt trip
US4786771A (en) Circuit interrupter with two stage stopper preventing bounce back
EP0150920A2 (en) Circuit interrupter
GB1390987A (en) Electrical circuit breakers
GB1515749A (en) Manually operable circuit interrupter with automatic current overload protection
GB1041407A (en) Pushbutton-controlled polyphase overload circuit breaker
GB819697A (en) Improvements in operating mechanism for an electric circuit breaker
US3284731A (en) Auxiliary switch responsive to the movement of the circuit breaker linkage
GB1002965A (en) Improvements in electric circuit breakers
US2247195A (en) Circuit breaker
GB784866A (en) Improvements in and relating to electric circuit breakers
US2669627A (en) Circuit breaker
US4302740A (en) Circuit breaker mechanism
US3501606A (en) Auxiliary spring switch
US3930214A (en) Pushbutton electric switch with reset mechanism
US2757360A (en) Circuit breaker
GB753754A (en) Improvements in and relating to driving mechanisms for electric circuit breakers
US3287522A (en) Circuit breaker with spring-biased toggle link

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee