EP1659603B1 - Device for display and signalling of tripping of a circuit breaker due to short circuit current - Google Patents

Device for display and signalling of tripping of a circuit breaker due to short circuit current Download PDF

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Publication number
EP1659603B1
EP1659603B1 EP20050024616 EP05024616A EP1659603B1 EP 1659603 B1 EP1659603 B1 EP 1659603B1 EP 20050024616 EP20050024616 EP 20050024616 EP 05024616 A EP05024616 A EP 05024616A EP 1659603 B1 EP1659603 B1 EP 1659603B1
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EP
European Patent Office
Prior art keywords
contact carrier
retaining element
short
circuit
contact
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 - Fee Related
Application number
EP20050024616
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German (de)
French (fr)
Other versions
EP1659603A2 (en
EP1659603A3 (en
Inventor
Ingo Ernert
Guido NIEWÖHNER
Ralph Burckhardt
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.)
ABB AG Germany
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ABB AG Germany
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Filing date
Publication date
Application filed by ABB AG Germany filed Critical ABB AG Germany
Publication of EP1659603A2 publication Critical patent/EP1659603A2/en
Publication of EP1659603A3 publication Critical patent/EP1659603A3/en
Application granted granted Critical
Publication of EP1659603B1 publication Critical patent/EP1659603B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01H71/04—Means for indicating condition of the switching device
    • 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
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
    • H01H71/462—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts housed in a separate casing, juxtaposed to and having the same general contour as the main casing

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • An electrical circuit breaker, a motor protection switch or a circuit breaker has the task of switching off this error in the event of a fault in the network.
  • a fault may be a so-called overcurrent or a short-circuit current. While an overcurrent does not necessarily indicate a serious fault in the network, a short-circuit current indicates that there is a fault in the network that must be repaired.
  • circuit breakers, circuit breakers or circuit breakers alone can not detect whether it is a disconnection via an overcurrent or a short-circuit current, measures must be taken to be able to recognize this.
  • a signaling device for signaling a short-circuit and / or overcurrent trip preferably in conjunction with a circuit breaker or a motor protection switch, known.
  • the reporting device or the device for reporting in a Attachment used which is suitably coupled to the switching device.
  • the device according to the DE 93 02 254 U1 is in the starting device, which can be referred to as an auxiliary switch, both an apparatus for the detection of an overcurrent and a device for the detection of a short-circuit current having a relatively complicated lever mechanism.
  • the object of the invention is therefore to provide a device of the type mentioned, which is further simplified and which can be applied substantially at a tripping by a short-circuit current.
  • the contact carrier is held by a retaining device in its initial position and thereby spring-loaded from its initial position in the direction of the short circuit indication.
  • a short-circuit current moves the transmission element, which transmits the triggering of the switching device in the device, the retainer so that it releases the contact carrier and the contact carrier is also released in its movement in the direction of the short circuit indication.
  • the device according to the invention accordingly has only one component which holds the contact carrier, and this is the holder, which is movable about an axis perpendicular to the direction of movement of the contact carrier and holds in one position the contact carrier and releases the contact carrier in a second position.
  • a nose is formed in a preferred manner, which strikes against movement of the contact carrier towards short circuit indicator against the retainer and this blocked and vice versa, a projection is provided on the retainer, which acts in the short circuit display position on a release lever in the switching device and holds this in the exemption, so that the switching device can not be turned on.
  • the retainer is designed to cooperate with a transmission element such that the transmission element pivots the retainer, so that the contact carrier is released.
  • a pressure surface for pressing back in the rest position is provided in a preferred manner, since the device does not automatically return to its initial position or rest position.
  • the molded on the contact carrier nose the retainer, d. H. released the rocker when pressing the contact bridge.
  • the only schematically illustrated device 10 for signaling and display of a tripping due to a short-circuit current in a motor protection switch 11 is laterally attached to this and connected thereto in a manner not shown.
  • the motor protection switch 11 has some components, such as thermal bimetals, electromagnetic triggers, contact points and a switch lock, which are of little importance to the invention.
  • a transmission element 12 which is arranged displaceably in the direction of arrow P and engages in the auxiliary switch 10 with an L-shaped projection 13.
  • a contact carrier 14 which has two openings 15 and 16, in which contact bridges 17 and 18 are held, wherein the contact pressure of the contact bridges 17 and 18 is generated by a respective compression spring 19 and 20.
  • the contact bridges 17 and 18 cooperate with fixed contact pieces (not shown), and the contact carrier 14 is in a position in which the contact bridges 17 and 18 are separated from the stationary contact pieces.
  • a pressure surface 21 is formed, via which the contact carrier 14 according to arrow P 1 in the figure shown starting or rest position against the pressure of a spring 22 which is formed as a helical compression spring and a pin 23 is guided, is pressed.
  • a retainer 24 is rotatably supported via axes 25, wherein the free end 13 of the transmission element 12 cooperates with the retainer 24.
  • the centrally mounted retainer 24 has an arm 26 against which or cooperates with the L-shaped projection 13, and an opposite arm 27, on whose the motor protection switch 11 side facing a projection 28 is provided, which engages in the motor protection switch 11 (although this is not shown) and with the trip lever in the motor protection switch 11, which is also not shown, so cooperates that he holds this in free trip, whereby the motor protection switch can not be turned on.
  • a pin 29 is formed on the holder 24 side facing a pin which extends parallel to the axis of rotation 25 of the retainer 24; on the arm 27, a cam surface 30 is formed, which is in the path of the pin 29 in the direction of arrow P 2 .
  • the retainer 24 is pivoted about its axis counterclockwise. As a result, the retainer 24 releases a retaining lug 31 provided on the contact carrier 14, so that the contact carrier 14 is moved upward in the direction of the arrow P 2 due to the force of the spring 22, ie out of the auxiliary switch 10.
  • the pin 29 then applies to the surface 30 and holds the retainer 24 fixed in this display position, so that via the now closed contact points with the movable contact bridges 17, 18 signaling is given and a provision of the retainer 24 is avoided.
  • torsion spring which holds the retainer 24, in the starting position or supports this.

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Description

Die Erfindung betrifft eine Einrichtung gemäß dem Oberbegriff des Anspruches 1.The invention relates to a device according to the preamble of claim 1.

Ein elektrischer Leistungsschalter, ein Motorschutzschalter oder ein Leitungsschutzschalter hat die Aufgabe, bei Auftreten eines Fehlers im Netz diesen Fehler abzuschalten. Ein derartiger Fehler kann ein sogenannter Überstrom oder ein Kurzschlussstrom sein. Während ein Überstrom nicht zwingend auf einen gravierenden Fehler im Netz hinweist, zeigt ein Kurzschlussstrom, dass ein Fehler im Netz vorhanden ist, der zwingend repariert werden muss. Da bei Leitungssschutzschaltern, Motorschutzschaltern oder Leistungsschaltern allein nicht erkannt werden kann, ob es sich um eine Abschaltung über einen Überstrom oder einen Kurzschlussstrom handelt, sind Maßnahmen zu treffen, um dies erkennen zu können.An electrical circuit breaker, a motor protection switch or a circuit breaker has the task of switching off this error in the event of a fault in the network. Such a fault may be a so-called overcurrent or a short-circuit current. While an overcurrent does not necessarily indicate a serious fault in the network, a short-circuit current indicates that there is a fault in the network that must be repaired. As circuit breakers, circuit breakers or circuit breakers alone can not detect whether it is a disconnection via an overcurrent or a short-circuit current, measures must be taken to be able to recognize this.

Z. B. ist aus dem DE 93 02 254 U1 eine Meldevorrichtung zur Signalisierung einer Kurzschluss- und/oder Überstromauslösung, vorzugsweise in Verbindung mit einem Leistungsschalter oder einem Motorschutzschalter, bekannt geworden. Bei dieser Ausgestaltung ist die Meldevorrichtung bzw. die Einrichtung zur Meldung in einen Anbau eingesetzt, die in geeigneter Weise mit dem Schaltgerät gekoppelt ist. Bei der Vorrichtung nach der DE 93 02 254 U1 ist in dem Anbauschaltgerät, welches als Hilfsschalter bezeichnet werden kann, sowohl eine Vorrichtung für die Detektion eines Überstroms als auch eine Vorrichtung für die Detektion eines Kurzschlussstromes beschrieben, die einen relativ komplizierten Hebelmechanismus aufweist.For example, is from the DE 93 02 254 U1 a signaling device for signaling a short-circuit and / or overcurrent trip, preferably in conjunction with a circuit breaker or a motor protection switch, known. In this embodiment, the reporting device or the device for reporting in a Attachment used, which is suitably coupled to the switching device. In the device according to the DE 93 02 254 U1 is in the starting device, which can be referred to as an auxiliary switch, both an apparatus for the detection of an overcurrent and a device for the detection of a short-circuit current having a relatively complicated lever mechanism.

Aufgabe der Erfindung ist es daher, eine Einrichtung der eingangs genannten Art zu schaffen, die noch weiter vereinfacht ist und die im wesentlichen bei einer Auslösung durch einen Kurzschlussstrom angewendet werden kann.The object of the invention is therefore to provide a device of the type mentioned, which is further simplified and which can be applied substantially at a tripping by a short-circuit current.

Diese Aufgabe wird durch die Merkmale des Anspruches 1 gelöst.This object is solved by the features of claim 1.

Erfindungsgemäß also ist der Kontaktträger von einem Festhalter in seiner Ausgangsstellung festgehalten und dabei von seiner Ausgangsstellung aus in Richtung zur Kurzschlussanzeige federnd beaufschlagt. Bei einem Kurzschlussstrom bewegt das Übertragungselement, welches die Auslösung von dem Schaltgerät in die Einrichtung überträgt, den Festhalter, so dass dieser den Kontaktträger freigibt und der Kontaktträger in seiner Bewegung in Richtung zur Kurzschlussanzeige ebenfalls freigegeben wird.Thus, according to the invention, the contact carrier is held by a retaining device in its initial position and thereby spring-loaded from its initial position in the direction of the short circuit indication. In a short-circuit current moves the transmission element, which transmits the triggering of the switching device in the device, the retainer so that it releases the contact carrier and the contact carrier is also released in its movement in the direction of the short circuit indication.

Die erfindungsgemäße Einrichtung besitzt demgemäß lediglich ein Bauelement, welches den Kontaktträger festhält, und dies ist der Festhalter, der um eine Achse senkrecht zur Bewegungsrichtung des Kontaktträgers bewegbar ist und in einer Stellung den Kontaktträger festhält und in einer zweiten Stellung den Kontaktträger freigibt.The device according to the invention accordingly has only one component which holds the contact carrier, and this is the holder, which is movable about an axis perpendicular to the direction of movement of the contact carrier and holds in one position the contact carrier and releases the contact carrier in a second position.

Am Kontaktträger ist in bevorzugter Weise eine Nase angeformt, die bei Bewegung des Kontaktträgers in Richtung Kurzschlussanzeige gegen den Festhalter anschlägt und diesen blockiert und umgekehrt ist am Festhalter ein Vorsprung vorgesehen, der in der Kurzschlussanzeigestellung auf einen Auslösehebel im Schaltgerät einwirkt und diesen in Freistellung festhält, so dass das Schaltgerät nicht mehr eingeschaltet werden kann.On the contact carrier, a nose is formed in a preferred manner, which strikes against movement of the contact carrier towards short circuit indicator against the retainer and this blocked and vice versa, a projection is provided on the retainer, which acts in the short circuit display position on a release lever in the switching device and holds this in the exemption, so that the switching device can not be turned on.

Gemäß einer besonders vorteilhaften Ausgestaltung ist der Festhalter zum Zusammenwirken mit einem Übertragungselement dergestalt ausgebildet, dass das Übertragungselement den Festhalter verschwenkt, so dass der Kontaktträger freigegeben ist.According to a particularly advantageous embodiment of the retainer is designed to cooperate with a transmission element such that the transmission element pivots the retainer, so that the contact carrier is released.

Am Kontaktträger selbst ist in bevorzugter Weise eine Druckfläche zum Zurückdrücken in Ruhestellung vorgesehen, da die Einrichtung nicht automatisch in ihre Ausgangsstellung oder Ruhestellung zurückkehrt.On the contact carrier itself, a pressure surface for pressing back in the rest position is provided in a preferred manner, since the device does not automatically return to its initial position or rest position.

Dabei wird die am Kontaktträger angeformte Nase den Festhalter, d. h. die Wippe beim Eindrücken der Kontaktbrücke freigegeben.In this case, the molded on the contact carrier nose the retainer, d. H. released the rocker when pressing the contact bridge.

Am Festhalter, d. h. an der Wippe ist darüber hinaus ein Testvorsprung vorgesehen, der bei Betätigung den Festhalter verschwenkt, so dass dieser den Kontaktträger freigibt.On the holder, d. H. On the rocker a test projection is also provided, which pivots when actuated the retainer, so that it releases the contact carrier.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind den weiteren Unteransprüchen zu entnehmen.Further advantageous embodiments of the invention can be found in the further subclaims.

Anhand der Zeichnung, in der ein Ausführungsbeispiel der Erfindung dargestellt ist, sollen die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung und weitere Vorteile näher erläutert und beschrieben werden.Reference to the drawing, in which an embodiment of the invention is shown, the invention and further advantageous refinements and improvements of the invention and other advantages will be explained and described in detail.

Es zeigt:

die einzige Fig.
eine perspektivische Darstellung eines Kontaktträgers mit Festhalter und Übertragungselement.
It shows:
the only Fig.
a perspective view of a contact carrier with retainer and transmission element.

Die lediglich schematisch dargestellte Einrichtung 10 zur Signalisierung und Anzeige einer Auslösung aufgrund eines Kurzschlussstromes in einem Motorschutzschalter 11 ist seitlich an diesen angebaut und mit diesem in nicht näher dargestellter Weise verbunden.The only schematically illustrated device 10 for signaling and display of a tripping due to a short-circuit current in a motor protection switch 11 is laterally attached to this and connected thereto in a manner not shown.

Der Motorschutzschalter 11 besitzt einige Komponenten, wie beispielsweise Thermobimetalle, elektromagnetische Auslöser, Kontaktstellen und ein Schaltschloss, die für die Erfindung nur von geringer Bedeutung sind.The motor protection switch 11 has some components, such as thermal bimetals, electromagnetic triggers, contact points and a switch lock, which are of little importance to the invention.

Aus dem Motorschutzschalter 11 ragt ein Übertragungselement 12 heraus, welches in Pfeilrichtung P verschieblich angeordnet ist und in den Hilfsschalter 10 mit einem L-förmigen Vorsprung 13 eingreift.From the motor protection switch 11 protrudes a transmission element 12 which is arranged displaceably in the direction of arrow P and engages in the auxiliary switch 10 with an L-shaped projection 13.

Innerhalb des Hilfsschalters 10 befindet sich ein Kontaktträger 14, der zwei Öffnungen 15 und 16 aufweist, in denen Kontaktbrücken 17 und 18 gehalten sind, wobei der Kontaktdruck der Kontaktbrücken 17 und 18 durch jeweils eine Druckfeder 19 und 20 erzeugt wird. Die Kontaktbrücken 17 und 18 wirken mit Festkontaktstücken (nicht gezeichnet) zusammen, und der Kontaktträger 14 befindet sich in einer Stellung, in der die Kontaktbrücken 17 und 18 von den feststehenden Kontaktstücken getrennt sind.Within the auxiliary switch 10 is a contact carrier 14, which has two openings 15 and 16, in which contact bridges 17 and 18 are held, wherein the contact pressure of the contact bridges 17 and 18 is generated by a respective compression spring 19 and 20. The contact bridges 17 and 18 cooperate with fixed contact pieces (not shown), and the contact carrier 14 is in a position in which the contact bridges 17 and 18 are separated from the stationary contact pieces.

An dem Kontaktträger 14 ist, aus dem Hilfsschalter 10 herausragend, eine Druckfläche 21 angeformt, über die der Kontaktträger 14 gemäß Pfeilrichtung P1 in die der Figur gezeigte Ausgangs- oder Ruhestellung entgegen dem Druck einer Feder 22, die als Schraubendruckfeder ausgebildet und durch einen Zapfen 23 geführt ist, gedrückt wird.On the contact carrier 14, protruding from the auxiliary switch 10, a pressure surface 21 is formed, via which the contact carrier 14 according to arrow P 1 in the figure shown starting or rest position against the pressure of a spring 22 which is formed as a helical compression spring and a pin 23 is guided, is pressed.

Ortsfest innerhalb des Hilfsschalters 10 ist ein Festhalter 24 über Achsen 25 drehbar gelagert, wobei das freie Ende 13 des Übertragungselementes 12 mit dem Festhalter 24 zusammenwirkt.Stationary within the auxiliary switch 10, a retainer 24 is rotatably supported via axes 25, wherein the free end 13 of the transmission element 12 cooperates with the retainer 24.

Der mittig gelagerte Festhalter 24 besitzt einen Arm 26, gegen den bzw. mit dem der L-förmige Vorsprung 13 zusammenwirkt, und einen entgegengesetzt liegenden Arm 27, an dessen dem Motorschutzschalter 11 zugewandten Seite ein Vorsprung 28 vorgesehen ist, die in den Motorschutzschalter 11 hineingreift (obwohl dies so nicht dargestellt ist) und mit dem Auslösehebel im Motorschutzschalter 11, der ebenfalls nicht dargestellt ist, so zusammen wirkt, dass er diesen in Freiauslösung festhält, wodurch der Motorschutzschalter nicht eingeschaltet werden kann.The centrally mounted retainer 24 has an arm 26 against which or cooperates with the L-shaped projection 13, and an opposite arm 27, on whose the motor protection switch 11 side facing a projection 28 is provided, which engages in the motor protection switch 11 (although this is not shown) and with the trip lever in the motor protection switch 11, which is also not shown, so cooperates that he holds this in free trip, whereby the motor protection switch can not be turned on.

An dem Kontaktträger 14 ist auf der dem Festhalter 24 zugewandten Seite ein Zapfen 29 angeformt, der parallel zur Drehachse 25 des Festhalters 24 verläuft; an dem Arm 27 ist eine Kurvenfläche 30 angeformt, die sich in dem Weg des Zapfens 29 in Pfeilrichtung P2 befindet.On the contact carrier 14, a pin 29 is formed on the holder 24 side facing a pin which extends parallel to the axis of rotation 25 of the retainer 24; on the arm 27, a cam surface 30 is formed, which is in the path of the pin 29 in the direction of arrow P 2 .

Wenn nun aufgrund eines Kurzschlussstromes das Übertragungselement 12 in Pfeilrichtung P verschoben wird, dann wird der Festhalter 24 um seine Achse entgegen dem Uhrzeigersinn verschwenkt. Dadurch gibt der Festhalter 24 eine am Kontaktträger 14 vorgesehene Haltenase 31 frei, so dass der Kontaktträger 14 aufgrund der Kraft der Feder 22 in Pfeilrichtung P2 nach oben, also aus dem Hilfsschalter 10 heraus bewegt wird. Der Zapfen 29 legt sich dann an die Fläche 30 an und hält den Festhalter 24 in dieser Anzeigestellung fest, so dass über die nunmehr geschlossenen Kontaktstellen mit den beweglichen Kontaktbrücken 17, 18 eine Signalisierung gegeben ist und eine Rückstellung des Festhalters 24 vermieden wird.If now due to a short-circuit current, the transmission element 12 is displaced in the direction of arrow P, then the retainer 24 is pivoted about its axis counterclockwise. As a result, the retainer 24 releases a retaining lug 31 provided on the contact carrier 14, so that the contact carrier 14 is moved upward in the direction of the arrow P 2 due to the force of the spring 22, ie out of the auxiliary switch 10. The pin 29 then applies to the surface 30 and holds the retainer 24 fixed in this display position, so that via the now closed contact points with the movable contact bridges 17, 18 signaling is given and a provision of the retainer 24 is avoided.

Gegen den Arm 26 wirkt eine Drehfeder, die den Festhalter 24, in Ausgangsposition festhalten bzw. diese stützt.Against the arm 26 acts a torsion spring, which holds the retainer 24, in the starting position or supports this.

Wenn nun der Kontaktträger 14 wieder in Pfeilrichtung P1 nach innen gedrückt wird, dann gleitet ein Vorsprung 32 an dem Festhalter 24 an einer Nockenfläche 33 eines Steuervorsprunges 34 auf, wodurch der Festhalter 24 wieder in seine Ruhestellung zurückgedrückt wird; der Zapfen 29 behindert die Bewegung des Festhalters 24 dann nicht, weil er aus dem Bereich der Fläche 30 herauskommt.Now, when the contact carrier 14 is pressed back in the direction of arrow P 1 inward, then slides a projection 32 on the retainer 24 on a cam surface 33 of a control projection 34, whereby the retainer 24 is pushed back into its rest position; the pin 29 does not hinder the movement of the retainer 24 because it comes out of the area of the surface 30.

Um zu testen, ob der Festhalter und damit der Hilfsschalter 10 ordnungsgemäß arbeiten, befindet sich an dem Festhalter eine Schrägfläche 35, gegen die ein Werkzeug gedrückt werden kann und die so ausgerichtet ist, dass sie beim Eindrücken des Werkzeuges den Festhalter entgegen dem Uhrzeigersinn verschwenkt, so dass der Festhalter das feststehende Kontaktstück 24 freigibt.To test whether the retainer and thus the auxiliary switch 10 are working properly, is located on the retainer an inclined surface 35 against which a tool can be pressed and which is oriented so that it rotates the retainer counterclockwise when pressing the tool, so that the retainer releases the fixed contact piece 24.

Claims (8)

  1. Device for indicating and signalling the tripping of a switching device, in particular a motor protection switch, a power breaker or a circuit breaker, by a short-circuit current, having a contact carrier (14) for at least one contact bridge, by means of which a signalling and indication circuit is opened or closed, and having a transmission element (12) which is moved out of the switching device when the latter is tripped, characterized in that the contact carrier (14), which is spring-loaded from its rest or initial position in the direction of the short-circuit indicator, is held in the initial position by a retaining element (24), and in that, in the event of a short-circuit current, the transmission element (12) moves the retaining element (24), as a result of which the latter releases the contact carrier (14) and the contact carrier (14) is able to move freely as it moves in the direction of the short-circuit indicator.
  2. Device according to Claim 1, characterized in that the retaining element (24) is pivotable about an axle (25) which runs perpendicular to the direction of movement of the contact carrier (14) and perpendicular to the direction of movement of the transmission element (12).
  3. Device according to Claim 1 or 2, characterized in that a pin (29) is provided on the contact carrier (14) and, when the contact carrier (14) moves in the direction of the short-circuit indicator, the pin strikes the retaining element (24) and blocks the latter, and in that a projection (28) is arranged on the retaining element (24) and, in the short-circuit indication position, acts on a trip lever situated in the switching device (11) and holds the trip lever in the free-tripping position.
  4. Device according to one of the preceding claims, characterized in that a pressure surface (21) is provided on the contact carrier (14) in order to push the contact carrier (14) back into its rest position or initial position.
  5. Device according to one of the preceding claims, characterized in that the pin (29) on the contact carrier (14) releases the retaining element (24) when the contact carrier (14) is pushed in.
  6. Device according to one of the preceding claims, characterized in that a test projection (35) is provided on the retaining element (24) and, when actuated, pivots the retaining element (24), as a result of which the latter releases the contact carrier (14).
  7. Device according to one of the preceding claims, characterized in that the retaining element (24) is rotatable about an axle which runs perpendicular to the direction of movement of the contact carrier (14) and perpendicular to the direction of movement of the transmission element (12) and which is mounted in a fixed position.
  8. Device according to one of the preceding claims, characterized in that the transmission element interacts with one arm of the retaining element (24) in order to push this arm free from the retaining tab (31) on the contact carrier, whereas the surface (30) which interacts with the pin (29) is moulded on the other arm together with the projection (28).
EP20050024616 2004-11-23 2005-11-11 Device for display and signalling of tripping of a circuit breaker due to short circuit current Expired - Fee Related EP1659603B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410056300 DE102004056300A1 (en) 2004-11-23 2004-11-23 Device for indicating and signaling a tripping of an electrical switching device by a short-circuit current

Publications (3)

Publication Number Publication Date
EP1659603A2 EP1659603A2 (en) 2006-05-24
EP1659603A3 EP1659603A3 (en) 2009-12-30
EP1659603B1 true EP1659603B1 (en) 2012-09-12

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EP20050024616 Expired - Fee Related EP1659603B1 (en) 2004-11-23 2005-11-11 Device for display and signalling of tripping of a circuit breaker due to short circuit current

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EP (1) EP1659603B1 (en)
DE (1) DE102004056300A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010022596A1 (en) * 2010-05-31 2011-12-01 Siemens Aktiengesellschaft Switch, in particular circuit breaker for low voltage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2623938B1 (en) * 1987-11-26 1990-04-13 Telemecanique Electrique FAULT SIGNALING ADDITIVE FOR ELECTRIC PROTECTIVE APPARATUS
DE3837461A1 (en) * 1988-11-04 1990-05-10 Kloeckner Moeller Elektrizit SHORT CIRCUIT DETECTOR
DE9302254U1 (en) * 1993-02-17 1993-08-19 Klöckner-Moeller GmbH, 53115 Bonn Signaling device for signaling a short circuit and / or overcurrent release
ATE294449T1 (en) * 1997-07-14 2005-05-15 Rockwell Automation Ag LATCHING MECHANISM FOR AN ELECTRICAL OVERCURRENT PROTECTION SWITCH, IN PARTICULAR FOR A MOTOR PROTECTION SWITCH
DE19754072C1 (en) * 1997-12-05 1999-07-22 Siemens Ag Switchgear unit consisting of a switchgear and a coupled leading auxiliary switch
JP3932010B2 (en) * 1999-12-06 2007-06-20 富士電機機器制御株式会社 Attached unit of circuit breaker

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Publication number Publication date
EP1659603A2 (en) 2006-05-24
DE102004056300A1 (en) 2006-06-08
EP1659603A3 (en) 2009-12-30

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