GB1466576A - Circuit breaker - Google Patents

Circuit breaker

Info

Publication number
GB1466576A
GB1466576A GB1709174A GB1709174A GB1466576A GB 1466576 A GB1466576 A GB 1466576A GB 1709174 A GB1709174 A GB 1709174A GB 1709174 A GB1709174 A GB 1709174A GB 1466576 A GB1466576 A GB 1466576A
Authority
GB
United Kingdom
Prior art keywords
pivot
lever
movable contact
tripping
spring
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
GB1709174A
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.)
Legrand SA
Original Assignee
Legrand 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 Legrand SA filed Critical Legrand SA
Publication of GB1466576A publication Critical patent/GB1466576A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01H73/48—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 having both electrothermal and electromagnetic automatic release
    • H01H73/50—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 having both electrothermal and electromagnetic automatic release reset by lever
    • 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
    • H01H71/08—Terminals; Connections
    • H01H2071/088—Terminals for switching devices which make the devices interchangeable, e.g. with fuses
    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/121—Protection of release mechanisms

Abstract

1466576 Automatic circuit-breakers LEGRAND SA 18 April 1974 [19 April 1973] 17091/74 Addition to 1407067 Heading H1N In a circuit breaker of the kind described in the main Specification 1,407,067 the tripping lever 345 is modified and carries a pivot 337 by which it is mounted in a slot 367 for sliding and pivoting movement, this pivot forming a retaining stop for the movable contact 328, the lever having its coupling notch formed as a retaining notch 368 facing the pivot and being subjected to a tensile force by spring 332 acting through the movable contact and the pivot such that the retaining notch is forced on to the coupling projection 346. Tripping is effected by displacement of the free end of the tripping lever, by electromagnetic means or bending of a bimetallic strip 317, so that the lever is rotated about its pivot 337 to disengage the retaining notch from the projection 346 allowing the tripping lever to drop, its pivot sliding down in its slot 367, and thus permitting the movable contact retained by it to move under the influence of spring 332 away from the fixed contact 315 to open the switch. The hand lever 340 is released and turns under the action of a spring 342 to bring the retaining notch 368 and the coupling projection 346 into engagement again so that they return to their set positions when the hand lever is restored. In a second embodiment, Fig. 7, not shown, the movable contact is mounted on the pivot 337 by means of lugs and there is a stationary abutment for the tripping lever.
GB1709174A 1973-04-19 1974-04-18 Circuit breaker Expired GB1466576A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7314331A FR2226745B2 (en) 1973-04-19 1973-04-19

Publications (1)

Publication Number Publication Date
GB1466576A true GB1466576A (en) 1977-03-09

Family

ID=9118260

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1709174A Expired GB1466576A (en) 1973-04-19 1974-04-18 Circuit breaker

Country Status (6)

Country Link
BE (1) BE812645R (en)
DE (1) DE2417286C2 (en)
FR (1) FR2226745B2 (en)
GB (1) GB1466576A (en)
IT (1) IT1050488B (en)
NL (1) NL174780C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2331879A1 (en) * 1975-11-13 1977-06-10 Legrand Sa CIRCUIT BREAKER, IN PARTICULAR MULTIPOLAR CIRCUIT BREAKER
FR2485254A1 (en) * 1980-06-19 1981-12-24 Merlin Gerin MINIATURE UNIPOLAR AND NEUTRAL CIRCUIT BREAKER
DE3164236D1 (en) * 1980-12-16 1984-07-19 Legrand Sa Circuit breaker with neutral-line disconnection
FR2496335A1 (en) * 1980-12-16 1982-06-18 Legrand Sa Neutral-sectioning circuit breaker - has disengageable locking device acting on magnetic cut-out and engagement and release lever
AT404769B (en) * 1993-01-21 1999-02-25 Felten & Guilleaume Ag Oester CIRCUIT BREAKER
DE10332358A1 (en) * 2003-07-17 2005-02-03 Abb Patent Gmbh Contact system with magnetic release

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE791473A (en) * 1971-12-02 1973-03-16 Legrand Sa CIRCUIT BREAKER

Also Published As

Publication number Publication date
DE2417286C2 (en) 1984-07-19
FR2226745A2 (en) 1974-11-15
DE2417286A1 (en) 1974-12-12
NL7404535A (en) 1974-10-22
FR2226745B2 (en) 1978-03-03
IT1050488B (en) 1981-03-10
NL174780B (en) 1984-03-01
BE812645R (en) 1974-07-15
NL174780C (en) 1984-08-01

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Legal Events

Date Code Title Description
PS Patent sealed