FR2238238A1 - Flat line protection switch with thermal overload trip - has thermal bimetal element and electromagnetic short cct. trip - Google Patents

Flat line protection switch with thermal overload trip - has thermal bimetal element and electromagnetic short cct. trip

Info

Publication number
FR2238238A1
FR2238238A1 FR7425246A FR7425246A FR2238238A1 FR 2238238 A1 FR2238238 A1 FR 2238238A1 FR 7425246 A FR7425246 A FR 7425246A FR 7425246 A FR7425246 A FR 7425246A FR 2238238 A1 FR2238238 A1 FR 2238238A1
Authority
FR
France
Prior art keywords
trip
thermal
bimetal
protection switch
bimetal element
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
FR7425246A
Other languages
French (fr)
Other versions
FR2238238B1 (en
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.)
BBC Brown Boveri AG Switzerland
BBC Brown Boveri AG Germany
Original Assignee
BBC Brown Boveri AG Switzerland
BBC Brown Boveri AG Germany
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 BBC Brown Boveri AG Switzerland, BBC Brown Boveri AG Germany filed Critical BBC Brown Boveri AG Switzerland
Publication of FR2238238A1 publication Critical patent/FR2238238A1/en
Application granted granted Critical
Publication of FR2238238B1 publication Critical patent/FR2238238B1/fr
Granted 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

The flat switch is of shell-type with a thermal overcurrent trip containing a bimetal element and an electromagnetic short circuit trip. The two trips are connected in parallel, and the coil of the short circuit trip is connected directly to one protection switch terminal. It is connected to its other terminal over a flexible coupling with a moving contact connected to the magnetic yoke. The bimetal element is parallel connected to the coil over connecting line(s) and a bimetal support. The bimetal thermal trip may have a temperature coefficient lower than that of the coil. The parallel branch, containing the bimetal trip may have a positive temperature coefficient (as possibly the bimetal trip itsel).
FR7425246A 1973-07-20 1974-07-19 Flat line protection switch with thermal overload trip - has thermal bimetal element and electromagnetic short cct. trip Granted FR2238238A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732336916 DE2336916C3 (en) 1973-07-20 1973-07-20 Miniature circuit breakers in narrow and shell design

Publications (2)

Publication Number Publication Date
FR2238238A1 true FR2238238A1 (en) 1975-02-14
FR2238238B1 FR2238238B1 (en) 1978-01-27

Family

ID=5887497

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7425246A Granted FR2238238A1 (en) 1973-07-20 1974-07-19 Flat line protection switch with thermal overload trip - has thermal bimetal element and electromagnetic short cct. trip

Country Status (2)

Country Link
DE (1) DE2336916C3 (en)
FR (1) FR2238238A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106229233A (en) * 2016-08-26 2016-12-14 加西亚电子电器股份有限公司 A kind of miniature circuit breaker

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3335051A1 (en) * 1983-09-28 1985-04-11 Christian Geyer GmbH & Co, 8500 Nürnberg Circuit arrangement for an electrical automatic circuit breaker
DE3738795A1 (en) * 1987-11-14 1989-05-24 Asea Brown Boveri SELF-SWITCH
DE4300909C2 (en) * 1993-01-15 1997-02-06 Abb Patent Gmbh Thermal release, especially for a circuit breaker
DE4306229A1 (en) * 1993-02-27 1994-09-01 Abb Patent Gmbh Switchgear with a thermal and a magnetic release
DE4445169C2 (en) * 1994-12-17 1998-09-10 Abb Patent Gmbh Submersible magnet system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106229233A (en) * 2016-08-26 2016-12-14 加西亚电子电器股份有限公司 A kind of miniature circuit breaker

Also Published As

Publication number Publication date
FR2238238B1 (en) 1978-01-27
DE2336916B2 (en) 1976-06-24
DE2336916A1 (en) 1975-02-06
DE2336916C3 (en) 1978-11-02

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Legal Events

Date Code Title Description
ST Notification of lapse