ES374717A1 - Circuit breaker with improved trip means - Google Patents

Circuit breaker with improved trip means

Info

Publication number
ES374717A1
ES374717A1 ES374717A ES374717A ES374717A1 ES 374717 A1 ES374717 A1 ES 374717A1 ES 374717 A ES374717 A ES 374717A ES 374717 A ES374717 A ES 374717A ES 374717 A1 ES374717 A1 ES 374717A1
Authority
ES
Spain
Prior art keywords
latch
bimetal
circuit breaker
lever
trip means
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
ES374717A
Other languages
Spanish (es)
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of ES374717A1 publication Critical patent/ES374717A1/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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)

Abstract

In an automatic circuit breaker having a pivoted lever 67 retained by a latch 95 releasable by a bimetal 77 upon overload, the latch 95 is fixed to the free end of the bimetal 97, while the other end is supported by a biasing spring 91, whereby upon bending of the bimetal the latch 95 remains in contact with the lever 67 but pivots about a point 105 thereon until the lever is released. This permits the tripping current to be accurately predetermined without the need for adjusting devices. Some adjustment can, however, be made by levering the latch and bimetal apart or squeezing them together or providing an adjustable abutment 10711 (Fig. 8, not shown) on the latch.
ES374717A 1968-12-31 1969-12-19 Circuit breaker with improved trip means Expired ES374717A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78823068A 1968-12-31 1968-12-31

Publications (1)

Publication Number Publication Date
ES374717A1 true ES374717A1 (en) 1972-04-16

Family

ID=25143846

Family Applications (1)

Application Number Title Priority Date Filing Date
ES374717A Expired ES374717A1 (en) 1968-12-31 1969-12-19 Circuit breaker with improved trip means

Country Status (5)

Country Link
US (1) US3566318A (en)
BR (1) BR6915728D0 (en)
ES (1) ES374717A1 (en)
FR (1) FR2027484A1 (en)
GB (1) GB1258828A (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855502A (en) * 1973-02-22 1974-12-17 Ite Imperial Corp Ground fault interrupter device
US4048607A (en) * 1976-06-24 1977-09-13 Amerace Corporation Circuit breaker
US4464641A (en) * 1982-12-16 1984-08-07 Gte Laboratories Incorporated Circuit breakers
US4472696A (en) * 1982-12-27 1984-09-18 Gte Laboratories Incorporated Circuit breaker
US4962406A (en) * 1989-12-26 1990-10-09 Westinghouse Electric Corp. Compact DC/AC circuit breaker with common arc extinguishing capability
US5008645A (en) * 1990-07-30 1991-04-16 Westinghouse Electric Corp. Circuit breaker with tamper indicating calibration means
US5182532A (en) * 1992-02-25 1993-01-26 General Electric Company Thermal-magnetic trip unit
US5291165A (en) * 1992-09-11 1994-03-01 Westinghouse Electric Corp. Insulating barriers for circuit breaker bus bars and a ground fault circuit breaker incorporating same
US5293522A (en) * 1992-09-11 1994-03-08 Westinghouse Electric Company Ground fault circuit breaker with test spring/contacts directly mounted to test circuit of printed circuit board
US5552755A (en) * 1992-09-11 1996-09-03 Eaton Corporation Circuit breaker with auxiliary switch actuated by cascaded actuating members
US5483211A (en) * 1994-06-23 1996-01-09 Eaton Corporation Two-pole compartmentalized ground fault miniature circuit breaker with a single central electronics compartment
US5510759A (en) * 1994-06-23 1996-04-23 Eaton Corporation Miniature circuit breaker with ground fault electronics supported by stiff conductors for easy assembly
US5453723A (en) * 1994-06-23 1995-09-26 Eaton Corporation Two-pole compartmentalized ground fault miniature circuit breaker with increased current rating
US5493265A (en) * 1994-11-14 1996-02-20 Eaton Corporation Wire securing block
WO1999056296A1 (en) * 1998-04-29 1999-11-04 Square D Company Current limiting circuit breaker operating mechanism including latching system
US6040746A (en) * 1998-12-30 2000-03-21 Eaton Corporation Actuation mechanism for trip actuated breaker auxiliary multiple microswitch
US7005590B1 (en) 2003-12-30 2006-02-28 Angelo Willis Electric panel with circuit breaker control gate and circuit breaker control method
US8035047B2 (en) * 2007-05-22 2011-10-11 Raabe Rodney D Reduced material plug-on jaw with symmetrical spring for a circuit breaker
JP5180905B2 (en) * 2009-05-11 2013-04-10 三菱電機株式会社 Circuit breaker
US8907236B2 (en) 2012-03-21 2014-12-09 Schneider Electric USA, Inc. Floating stationary contact to create stable, low resistance contact joints

Also Published As

Publication number Publication date
GB1258828A (en) 1971-12-30
BR6915728D0 (en) 1973-02-20
US3566318A (en) 1971-02-23
FR2027484A1 (en) 1970-09-25

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