EP1298692A3 - Switch contact arrangement for a low voltage circuit breaker - Google Patents

Switch contact arrangement for a low voltage circuit breaker Download PDF

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Publication number
EP1298692A3
EP1298692A3 EP02090331A EP02090331A EP1298692A3 EP 1298692 A3 EP1298692 A3 EP 1298692A3 EP 02090331 A EP02090331 A EP 02090331A EP 02090331 A EP02090331 A EP 02090331A EP 1298692 A3 EP1298692 A3 EP 1298692A3
Authority
EP
European Patent Office
Prior art keywords
contact
circuit breaker
voltage circuit
contact arrangement
bearing pin
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
EP02090331A
Other languages
German (de)
French (fr)
Other versions
EP1298692B1 (en
EP1298692A2 (en
Inventor
Ludvik Godesa
Marc Liebetruth
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP1298692A2 publication Critical patent/EP1298692A2/en
Publication of EP1298692A3 publication Critical patent/EP1298692A3/en
Application granted granted Critical
Publication of EP1298692B1 publication Critical patent/EP1298692B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/226—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/226—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars
    • H01H2001/228—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars with insulating spacers between the contact bars

Landscapes

  • Breakers (AREA)

Abstract

Eine Schaltkontaktanordnung eines Niederspannungs-Leistungsschalters umfasst einen Kontaktträger und an diesem parallel zueinander angeordnete Kontakthebel, die auf einem am Kontaktträger abgestützten Lagerbolzen schwenkbar sind. Zwischen wenigstens einen der Kontakthebel (11) sind Abstandsstücke (20) angeordnet, die am äußeren Umfang eine dem Kontaktträger (10) gegenüberstehende Stützfläche (22) aufweisen. Im ausgeschalteten Ruhezustand der Schaltkontaktanordnung stehen die Stützflächen (22) den Gegenflächen (21) am Kontaktträger (10) mit einem minimalen Abstand gegenüber, der vorzugsweise wenige zehntel Millimeter beträgt. Wird die Schaltkontaktanordnung durch einen hohen Strom starken Belastungen ausgesetzt, so bleibt eine unvermeidliche Durchbiegung des Lagerbolzens (12) auf den genannten geringen Abstand beschränkt. Die Erfindung eignet sich für Niederspannungs-Leistungsschalter mit zahlreichen Kontakthebeln und entsprechend langen Lagerbolzen, wie dies insbesondere bei Bauformen solcher Leistungsschalter der Fall ist, die für hohe Nennströme und hohe Stoß- bzw. Kurzschlussströme bemessen sind.

Figure 00000001
A switch contact arrangement of a low-voltage circuit breaker comprises a contact carrier and at this parallel to each other arranged contact lever, which are pivotable on a supported on the contact carrier bearing pin. Between at least one of the contact lever (11) spacers (20) are arranged, which on the outer periphery of the contact carrier (10) opposite the support surface (22). When the switch contact arrangement is switched off, the support surfaces (22) face the mating surfaces (21) on the contact carrier (10) with a minimum distance, which is preferably a few tenths of a millimeter. If the switching contact arrangement is subjected to heavy loads by a high current, an unavoidable deflection of the bearing pin (12) remains limited to the mentioned small distance. The invention is suitable for low-voltage circuit breaker with numerous contact levers and correspondingly long bearing pin, as is the case in particular for types of such circuit breaker, which are sized for high rated currents and high surge or short-circuit currents.
Figure 00000001
EP02090331A 2001-09-28 2002-09-13 Switch contact arrangement for a low voltage circuit breaker Expired - Fee Related EP1298692B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10148947A DE10148947C1 (en) 2001-09-28 2001-09-28 Switch contact device for LV power switch has spacers between contact levers provided with support surfaces limiting movement of contact carrier and deformation of contact carrier bearing bolt
DE10148947 2001-09-28

Publications (3)

Publication Number Publication Date
EP1298692A2 EP1298692A2 (en) 2003-04-02
EP1298692A3 true EP1298692A3 (en) 2003-10-15
EP1298692B1 EP1298692B1 (en) 2004-12-15

Family

ID=7701360

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02090331A Expired - Fee Related EP1298692B1 (en) 2001-09-28 2002-09-13 Switch contact arrangement for a low voltage circuit breaker

Country Status (2)

Country Link
EP (1) EP1298692B1 (en)
DE (2) DE10148947C1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004009873A1 (en) * 2004-02-26 2005-09-15 Siemens Ag Switching contact arrangement
DE102004020654A1 (en) * 2004-04-22 2005-11-10 Siemens Ag Switching contact arrangement
DE102004058764A1 (en) * 2004-11-30 2006-06-01 Siemens Ag Terminal bus for flexible electrical conductor, has groove that corresponds with conductor wire end of flexible conductor, where groove is moulded in terminal bus and terminal bus is made from copper or copper alloy by extrusion process
DE102005009484A1 (en) * 2005-02-23 2006-09-14 Siemens Ag Contact lever assembly for a low voltage circuit breaker
US7935902B2 (en) * 2008-04-15 2011-05-03 General Electric Company Contact assembly of circuit breaker
CN101908443B (en) * 2010-08-05 2014-05-14 无锡新宏泰电器科技股份有限公司 Contact system for circuit breaker
EP2674953B1 (en) 2012-06-11 2018-01-24 ABB Oy Electric current switching apparatus
EP2674952B1 (en) * 2012-06-11 2018-10-10 ABB Oy Electric current switching apparatus
FR3122944B1 (en) * 2021-05-11 2023-11-10 Hager Electro Sas Mobile contact configured to be integrated into a circuit breaker

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1545113A (en) * 1966-11-21 1968-11-08 Gen Electric Articulated cut-off device for circuit breaker or switch
DE3539788A1 (en) * 1985-11-07 1987-05-14 Siemens Ag CONTACT ARRANGEMENT WITH CONTACT LEVER INTERMEDIATE LAYERS
US5012053A (en) * 1988-03-24 1991-04-30 Terasaki Denki Sangyo Kabushiki Kaisha Contact device for a switch
US5389906A (en) * 1993-08-20 1995-02-14 General Electric Cost-efficient industrial-rated molded case breaker
DE19629482C1 (en) * 1996-07-12 1997-09-11 Siemens Ag Low-voltage (LV) circuit breaker switch contact design

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE758108C (en) * 1937-10-09 1954-02-01 Siemens Schuckertwerke A G Contact arrangement for electrical switchgear
DE3679291D1 (en) * 1985-10-31 1991-06-20 Merlin Gerin KINEMATIC TRANSMISSION CHAIN BETWEEN THE CONTROL MECHANISM AND THE POLES OF AN ELECTRIC LOAD SWITCH WITH A SPRAYED INSULATION HOUSING.
DE29502564U1 (en) * 1995-02-16 1996-06-20 Siemens Ag Electrical machine
DE29609824U1 (en) * 1996-05-21 1997-07-24 Siemens Ag Low voltage circuit breaker with a contact carrier

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1545113A (en) * 1966-11-21 1968-11-08 Gen Electric Articulated cut-off device for circuit breaker or switch
DE3539788A1 (en) * 1985-11-07 1987-05-14 Siemens Ag CONTACT ARRANGEMENT WITH CONTACT LEVER INTERMEDIATE LAYERS
US5012053A (en) * 1988-03-24 1991-04-30 Terasaki Denki Sangyo Kabushiki Kaisha Contact device for a switch
US5389906A (en) * 1993-08-20 1995-02-14 General Electric Cost-efficient industrial-rated molded case breaker
DE19629482C1 (en) * 1996-07-12 1997-09-11 Siemens Ag Low-voltage (LV) circuit breaker switch contact design

Also Published As

Publication number Publication date
EP1298692B1 (en) 2004-12-15
DE50201764D1 (en) 2005-01-20
DE10148947C1 (en) 2003-02-13
EP1298692A2 (en) 2003-04-02

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