GB1393799A - Circuit breaker - Google Patents

Circuit breaker

Info

Publication number
GB1393799A
GB1393799A GB4959272A GB4959272A GB1393799A GB 1393799 A GB1393799 A GB 1393799A GB 4959272 A GB4959272 A GB 4959272A GB 4959272 A GB4959272 A GB 4959272A GB 1393799 A GB1393799 A GB 1393799A
Authority
GB
United Kingdom
Prior art keywords
latch
contacts
circuit
pivoted
handle
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
GB4959272A
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co Ltd
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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Publication of GB1393799A publication Critical patent/GB1393799A/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
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/528—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a toggle or collapsible link between handle and contact arm, e.g. sear pin mechanism

Landscapes

  • Breakers (AREA)

Abstract

1393799 Automatic circuit-breakers TOKYO SHIBAURA ELECTRIC CO Ltd 27 Oct 1972 [1 Dec 1971] 49592/72 Heading H1N A circuit-breaker has a toggle linkage 26, 33 interconnecting a pivoted operating handle 25 and a pivoted contact-carrying arm 18, a releasable member 34 having one end forming a pivot of the linkage and its other end guided in elongated slots 221 and latched by a pivoted latch 35, and overload responsive means to move the latch to release the member 34 so that the circuit-breaker contacts 30, 15 open. In the closed position shown, the contacts are maintained closed against spring bias by the member 34 and by the toggle formed by the handle 25 and upper link 26 being overcentre. On overload a coil (not shown) attracts an armature 40 which abuts and moves the latch 35 to release the member 34. The toggle linkage collapses to open the contacts and a spring (not shown) restores the handle 25 to the "off" position so that the latch 35, member 34 and the links are automatically reset ready for a subsequent manual reclosing operation.
GB4959272A 1971-12-01 1972-10-27 Circuit breaker Expired GB1393799A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11222271 1971-12-01

Publications (1)

Publication Number Publication Date
GB1393799A true GB1393799A (en) 1975-05-14

Family

ID=14581296

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4959272A Expired GB1393799A (en) 1971-12-01 1972-10-27 Circuit breaker

Country Status (5)

Country Link
US (1) US3774129A (en)
AU (1) AU467907B2 (en)
BR (1) BR7208445D0 (en)
CA (1) CA972015A (en)
GB (1) GB1393799A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0003973A1 (en) * 1978-03-10 1979-09-19 Siemens Aktiengesellschaft Low-tension power circuit breaker with electromagnetic release
GB2216724A (en) * 1988-03-24 1989-10-11 Terasaki Denki Sangyo Kk Switch contacts
GB2246909A (en) * 1990-07-16 1992-02-12 Terasaki Denki Sangyo Kk Circuit breakers

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056797A (en) * 1976-07-06 1977-11-01 I-T-E Imperial Corporation Cradle for contact operating means
US4079346A (en) * 1976-07-06 1978-03-14 I-T-E Imperial Corporation Mounting plate for molded case circuit breaker
US4110717A (en) * 1976-12-30 1978-08-29 Texas Instruments Incorporated Circuit breaker
US4146855A (en) * 1977-09-06 1979-03-27 Square D Company Low profile multi-pole circuit breaker having multiple toggle springs
US4181907A (en) * 1978-05-22 1980-01-01 Robertshaw Controls Company Electrical switch construction having armature latch
US4302740A (en) * 1979-12-10 1981-11-24 Westinghouse Electric Corp. Circuit breaker mechanism
US4628288A (en) * 1984-05-15 1986-12-09 Mitsubishi Denki Kabushiki Kaisha Circuit interrupter
US4641001A (en) * 1984-06-15 1987-02-03 Mitsubishi Denki Kabushiki Kaisha Circuit interrupter
US4618745A (en) * 1985-04-01 1986-10-21 Heinemann Electric Company Circuit breaker mechanism
FR2583570B1 (en) * 1985-06-12 1988-07-15 Merlin Gerin MOLDED CASE CIRCUIT BREAKER.
FR2589627B1 (en) * 1985-10-31 1988-08-26 Merlin Gerin CONTROL MECHANISM FOR LOW VOLTAGE ELECTRIC CIRCUIT BREAKER
US5260533A (en) * 1991-10-18 1993-11-09 Westinghouse Electric Corp. Molded case current limiting circuit breaker
US6087913A (en) * 1998-11-20 2000-07-11 General Electric Company Circuit breaker mechanism for a rotary contact system
WO2018114739A1 (en) * 2016-12-20 2018-06-28 Eaton Industries (Austria) Gmbh Circuit breaker with tripping functionality
US11417489B2 (en) * 2020-06-03 2022-08-16 Rockwell Automation Technologies, Inc. Trip unit fixation in a circuit breaker

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3329912A (en) * 1965-10-01 1967-07-04 Wood Electric Corp Multipole circuit breaker with interconnected toggle locks and contact members
US3395372A (en) * 1967-05-22 1968-07-30 Henry L. Opad Low current or voltage circuit breaker

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0003973A1 (en) * 1978-03-10 1979-09-19 Siemens Aktiengesellschaft Low-tension power circuit breaker with electromagnetic release
GB2216724A (en) * 1988-03-24 1989-10-11 Terasaki Denki Sangyo Kk Switch contacts
GB2246909A (en) * 1990-07-16 1992-02-12 Terasaki Denki Sangyo Kk Circuit breakers
US5252933A (en) * 1990-07-16 1993-10-12 Terasaki Denki Sangyo Kabushiki Kaisha Circuit breaker including forced contact parting mechanism capable of self-retaining under short circuit condition
GB2246909B (en) * 1990-07-16 1995-02-22 Terasaki Denki Sangyo Kk Circuit breaker including forced contact parting mechanism capable of self-retaining under short circuit condition

Also Published As

Publication number Publication date
CA972015A (en) 1975-07-29
US3774129A (en) 1973-11-20
BR7208445D0 (en) 1973-09-20
AU467907B2 (en) 1975-12-18
AU4842072A (en) 1974-05-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee