ZA865159B - Miniature electrical circuit breaker with multiple moving contacts and thermomagnetic trip release - Google Patents

Miniature electrical circuit breaker with multiple moving contacts and thermomagnetic trip release

Info

Publication number
ZA865159B
ZA865159B ZA865159A ZA865159A ZA865159B ZA 865159 B ZA865159 B ZA 865159B ZA 865159 A ZA865159 A ZA 865159A ZA 865159 A ZA865159 A ZA 865159A ZA 865159 B ZA865159 B ZA 865159B
Authority
ZA
South Africa
Prior art keywords
trip release
tail
coil
bimetallic strip
foot
Prior art date
Application number
ZA865159A
Inventor
William Bartolo
Patrick De Robertis
Louis Boillot
Jacky Duchenaud
Rene Challande
Jean-Claude Ramaciotti
Original Assignee
Merlin Gerin
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 filed Critical Merlin Gerin
Publication of ZA865159B publication Critical patent/ZA865159B/en

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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms
    • 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
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures
    • 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
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2481—Electromagnetic mechanisms characterised by the coil design

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Thermally Actuated Switches (AREA)
  • Push-Button Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Electric Clocks (AREA)

Abstract

1. Thermomagnetic trip release (10), associated with an opening mechanism of a molded insulated case miniature circuit breaker, comprising : - a first thermal trip release with a bimetallic strip (14) sensitive to overload currents, - a second electromagnetic trip release for protection against short-circuit currents, comprising a control coil (34) electromagnet (16), made up by helical winding of a deformable conductor having a preset rigidity, - and an adjustment device (52) of the thermal tripping threshold of the first trip release, characterized in that the coil (34) of said electromagnet is extended by a tail (44), arranged as an adjustable support part of the bimetallic strip (14), the foot (48) of the latter being inserted by soldering between said tail (44) and an electrical connection means (76, 80) with a contact pad, to cause the current to flow thickness-wise through the foot (48) of the bimetallic strip (14), and that the tail (44) comprises a hinge (60) between the junction point of the foot (48) of the bimetallic strip (14) and the coil (34), in such a way as to allow a relative movement of one part of said tail (44) due to the action of the thermal tripping threshold adjusting device (52), the other part, connected to the coil (34) remaining appreciably stationary.
ZA865159A 1985-07-31 1986-07-10 Miniature electrical circuit breaker with multiple moving contacts and thermomagnetic trip release ZA865159B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8511839A FR2585877B1 (en) 1985-07-31 1985-07-31 MAGNETOTHERMAL TRIGGER ASSOCIATED WITH THE MECHANISM OF A MINIATURE CIRCUIT BREAKER WITH INSULATING HOUSING

Publications (1)

Publication Number Publication Date
ZA865159B true ZA865159B (en) 1987-02-25

Family

ID=9321898

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA865159A ZA865159B (en) 1985-07-31 1986-07-10 Miniature electrical circuit breaker with multiple moving contacts and thermomagnetic trip release

Country Status (5)

Country Link
EP (1) EP0213979B1 (en)
AT (1) ATE57445T1 (en)
DE (1) DE3674867D1 (en)
FR (1) FR2585877B1 (en)
ZA (1) ZA865159B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4309197A1 (en) * 1993-03-22 1994-09-29 Maier & Cie C Line protection circuit breaker
DE19952186A1 (en) * 1999-10-29 2001-05-03 Moeller Gmbh Electrical protection switching device
CZ300253B6 (en) * 2005-08-15 2009-04-01 Oez S. R. O. Adjusting mechanism, particularly for thermal trip of electric switchgear
CN100377270C (en) * 2005-12-07 2008-03-26 上海电器科学研究所（集团）有限公司 Thermomagnetic type release and its current adjusting knob

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE597445C (en) * 1928-07-25 1934-05-25 Schiele & Bruchsaler Industrie Overcurrent release for electrical switches
DE1463684B2 (en) * 1964-11-17 1970-06-18 Stotz-Kontakt GmbH, 6800 Mannheim-Käfertal Installation circuit breaker with thermal and magnetic release
GB1459298A (en) * 1974-02-27 1976-12-22 Ottermill Ltd Electric circuit breakers
FR2344949A1 (en) * 1976-03-15 1977-10-14 Merlin Gerin Low voltage miniature contact breaker for domestic use - has bimetal strips and solenoid for release and laminated stack for arc blowout
FR2429487A1 (en) * 1978-06-23 1980-01-18 Merlin Gerin CIRCUIT BREAKER WITH REMOVABLE TRIGGER BLOCK

Also Published As

Publication number Publication date
EP0213979A1 (en) 1987-03-11
DE3674867D1 (en) 1990-11-15
ATE57445T1 (en) 1990-10-15
EP0213979B1 (en) 1990-10-10
FR2585877B1 (en) 1987-10-23
FR2585877A1 (en) 1987-02-06

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