ATE504934T1 - INSTALLATION SWITCHGEAR WITH A DOUBLE BREAK - Google Patents

INSTALLATION SWITCHGEAR WITH A DOUBLE BREAK

Info

Publication number
ATE504934T1
ATE504934T1 AT07819681T AT07819681T ATE504934T1 AT E504934 T1 ATE504934 T1 AT E504934T1 AT 07819681 T AT07819681 T AT 07819681T AT 07819681 T AT07819681 T AT 07819681T AT E504934 T1 ATE504934 T1 AT E504934T1
Authority
AT
Austria
Prior art keywords
pusher
contact bridge
contacts
open
point
Prior art date
Application number
AT07819681T
Other languages
German (de)
Inventor
Ralf Mueller
Frank Hustert
Original Assignee
Abb 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 Abb Ag filed Critical Abb Ag
Application granted granted Critical
Publication of ATE504934T1 publication Critical patent/ATE504934T1/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
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2409—Electromagnetic mechanisms combined with an electromagnetic current limiting mechanism
    • 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
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H01H73/045—Bridging contacts

Abstract

The invention relates to an installation switchgear (1) with at least one pole current path (2), comprising two stationary contacts (5, 6) and two mobile contacts (8, 9) that are arranged on a mobile contact bridge (7), said contacts forming a double break pole switch with two contacts. The contact bridge (7) is impinged upon by a pusher (12) in the direction of opening (O) and by a contact compression spring (11) in the direction of closure (S). The switchgear further comprises an electromagnetic trigger (13) the striker armature of which, in the event of a short-circuit, strikes the contact bridge (7) open via the pusher (12) in the direction of opening (O) and unlatches the latch point of a switch latch (15) so that the switch latch (15) permanently impinges the contact bridge (7) in a point of attack via an active lever (17) against the force of the contact compression spring (11) so as to open it. The invention is characterized in that the pusher (12), when striking the contact bridge (7) open, entrains the active lever (17) in the direction of its point of attack (24) on the pusher (12) via a dog element (29) so that the trigger path of the active lever (17) is shortened.
AT07819681T 2006-11-22 2007-11-08 INSTALLATION SWITCHGEAR WITH A DOUBLE BREAK ATE504934T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006054984A DE102006054984A1 (en) 2006-11-22 2006-11-22 Installation switching device with a double break
PCT/EP2007/009671 WO2008061631A1 (en) 2006-11-22 2007-11-08 Double break installation switchgear

Publications (1)

Publication Number Publication Date
ATE504934T1 true ATE504934T1 (en) 2011-04-15

Family

ID=38984498

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07819681T ATE504934T1 (en) 2006-11-22 2007-11-08 INSTALLATION SWITCHGEAR WITH A DOUBLE BREAK

Country Status (4)

Country Link
EP (1) EP2095388B1 (en)
AT (1) ATE504934T1 (en)
DE (2) DE102006054984A1 (en)
WO (1) WO2008061631A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010017900A1 (en) * 2010-04-21 2011-10-27 Abb Ag Installation switching device with a double break
EP2849199A1 (en) * 2013-09-16 2015-03-18 Siemens Aktiengesellschaft Switching unit, in particular circuit breaker
CN109935478B (en) * 2019-01-04 2023-10-24 厦门宏发汽车电子有限公司 Mechanical switch with contact isolation safety

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19540972B4 (en) * 1995-11-03 2005-05-04 Moeller Gmbh Current-limiting contact system with double break for low-voltage circuit breaker
JP2000340093A (en) * 1999-05-25 2000-12-08 Fuji Electric Co Ltd Overcurrent trip device for circuit breaker

Also Published As

Publication number Publication date
EP2095388B1 (en) 2011-04-06
DE102006054984A1 (en) 2008-05-29
WO2008061631A1 (en) 2008-05-29
EP2095388A1 (en) 2009-09-02
DE502007006902D1 (en) 2011-05-19

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