EP1005060A3 - Undervoltage release device - Google Patents

Undervoltage release device Download PDF

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Publication number
EP1005060A3
EP1005060A3 EP99122990A EP99122990A EP1005060A3 EP 1005060 A3 EP1005060 A3 EP 1005060A3 EP 99122990 A EP99122990 A EP 99122990A EP 99122990 A EP99122990 A EP 99122990A EP 1005060 A3 EP1005060 A3 EP 1005060A3
Authority
EP
European Patent Office
Prior art keywords
release
pawl
lever
undervoltage
electromagnet
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
EP99122990A
Other languages
German (de)
French (fr)
Other versions
EP1005060A2 (en
EP1005060B1 (en
Inventor
Norbert Nitsche
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.)
Eaton Industries GmbH
Original Assignee
Moeller GmbH
Kloeckner Moeller GmbH
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 Moeller GmbH, Kloeckner Moeller GmbH filed Critical Moeller GmbH
Publication of EP1005060A2 publication Critical patent/EP1005060A2/en
Publication of EP1005060A3 publication Critical patent/EP1005060A3/en
Application granted granted Critical
Publication of EP1005060B1 publication Critical patent/EP1005060B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/12—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by voltage falling below a predetermined value, e.g. for no-volt protection
    • 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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever

Abstract

Die Erfindung betrifft einen Unterspannungsauslöser für elektrische Niederspannungs-Schutzschalter mit einem von einem Elektromagneten (4) betätigbaren stößelförmigen Magnetanker (5), welcher über eine Sperrklinke (7) und einen Auslösehebel (8) auf einen Auslöseschieber (9) wirken, derart, dass bei Nichterreichen der Steuerspannung der Auslöseschieber (9) ein Auslösen des Schutzschalters bewirkt. Um zu erreichen, dass der Unterspannungsauslöser (1) auch dann in seine Einschaltstellung gebracht werden kann, wenn keine Steuerspannung an dem Elektromagnet (4) anliegt, schlägt die Erfindung vor, dass der Unterspannungsauslöser (1) einen durch eine Feder (17) beaufschlagten schwenkbaren Steuerhebel (16) umfasst, der als Auslösesperre ausgebildet ist und der in der eingeschalteten Stellung des Unterspannungsauslöser (1) sich an der Sperrklinke (7) abstützt, derart, dass Sperrklinke (7) und Auslösehebel (8) in ihrer Verklinkungsstellung fixiert werden. Wird hingegen der Steuerhebel (16) verschwenkt, wird die Auslösesperre aufgehoben und Sperrklinke (7) sowie Auslösehebel (8) bleiben nur dann miteinander verklinkt, wenn an dem Elektromagnet (4) eine ausreichend große Steuerspannung anliegt.

Figure 00000001
The invention relates to an undervoltage release for electrical low-voltage circuit breakers with a plunger-shaped magnet armature (5) which can be actuated by an electromagnet (4) and which acts on a release slide (9) via a pawl (7) and a release lever (8), in such a way that Failure to reach the control voltage of the trigger slide (9) triggers the circuit breaker. In order to ensure that the undervoltage release (1) can also be brought into its switch-on position when no control voltage is applied to the electromagnet (4), the invention proposes that the undervoltage release (1) be pivoted by a spring (17) Control lever (16), which is designed as a release lock and which is supported in the switched-on position of the undervoltage release (1) on the pawl (7) such that the pawl (7) and release lever (8) are fixed in their latched position. If, on the other hand, the control lever (16) is pivoted, the release lock is released and the pawl (7) and release lever (8) remain locked together only when there is a sufficiently large control voltage on the electromagnet (4).
Figure 00000001
EP19990122990 1998-11-23 1999-11-19 Undervoltage release device Expired - Lifetime EP1005060B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853901 1998-11-23
DE1998153901 DE19853901C1 (en) 1998-11-23 1998-11-23 Undervoltage release

Publications (3)

Publication Number Publication Date
EP1005060A2 EP1005060A2 (en) 2000-05-31
EP1005060A3 true EP1005060A3 (en) 2001-07-11
EP1005060B1 EP1005060B1 (en) 2006-06-21

Family

ID=7888664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990122990 Expired - Lifetime EP1005060B1 (en) 1998-11-23 1999-11-19 Undervoltage release device

Country Status (2)

Country Link
EP (1) EP1005060B1 (en)
DE (1) DE19853901C1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4110769B2 (en) * 2001-08-27 2008-07-02 三菱電機株式会社 Circuit breaker
DE10145059C1 (en) * 2001-09-13 2003-03-13 Moeller Gmbh Multi-pole switching device provided with interchangable undervoltage release with integrated auxiliary switch operated in released position
DE10320681B4 (en) * 2003-04-30 2006-10-19 Siemens Ag Switch lock for latching a selector shaft and electrical switch with such a switch lock
EP2426691B1 (en) * 2010-09-06 2015-11-04 ABB Technology AG Mechanical override device
EP2620970A1 (en) 2012-01-26 2013-07-31 Eaton Industries GmbH Remote control with expansion member

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE255819C (en) *
EP0620580A1 (en) * 1993-04-16 1994-10-19 Schneider Electric Sa Auxiliary trip device for circuit breaker

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE255819C (en) *
EP0620580A1 (en) * 1993-04-16 1994-10-19 Schneider Electric Sa Auxiliary trip device for circuit breaker

Also Published As

Publication number Publication date
EP1005060A2 (en) 2000-05-31
EP1005060B1 (en) 2006-06-21
DE19853901C1 (en) 2000-06-15

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