EP2390895A1 - Switch, in particular circuit breaker for low voltages - Google Patents
Switch, in particular circuit breaker for low voltages Download PDFInfo
- Publication number
- EP2390895A1 EP2390895A1 EP11159537A EP11159537A EP2390895A1 EP 2390895 A1 EP2390895 A1 EP 2390895A1 EP 11159537 A EP11159537 A EP 11159537A EP 11159537 A EP11159537 A EP 11159537A EP 2390895 A1 EP2390895 A1 EP 2390895A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- signaling
- switch
- blocking
- short circuit
- switch according
- 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
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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
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage
-
- 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
-
- 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
-
- 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
- H01H71/58—Manual reset mechanisms which may be also used for manual release actuated by push-button, pull-knob, or slide
Definitions
- the invention relates to a switch, in particular circuit breaker for low voltages, according to the preamble of claim 1.
- Low voltage circuit breakers are well known and cause the interruption of the current flowing through the switch in the event of an overcurrent or short circuit.
- the current flows via switch contacts which are disconnected in the event of overcurrent or short circuit.
- To disconnect the switch contacts is a trigger whose electromagnet is also traversed by the current and shifts a slide in the case of short circuit due to the relatively large magnetic forces generated thereby. This acts on a preloaded switch lock, which separates the switch contacts.
- Such triggers almost always have an additional thermal unit for overcurrent detection, so that it is not readily possible to detect whether an overcurrent or a short circuit has led to the tripping of the switch.
- the object of the invention is to specify a retrofittable signaling switch module which signals a short-circuit tripping.
- a detector switch module inserted into the switch has a blocking element and a displaceable signaling element, wherein the blocking element is moved from a blocking position to a release position, in which it releases the displacement of the signaling element in a signaling position, and that the blocking element is moved in a short circuit by the trigger element in its release position.
- the core idea of the invention is thus to let the blocking element of the signaling switch module cooperate with the existing trigger element of the switch, ie the triggering element releases the blocking element, so that the signaling element indicate a short circuit or the display z. B. can trigger by switch operation.
- the blocking element are designed as a rotatably mounted Entklinkungshebel and the trigger element as a trigger slide, wherein the trigger slide has a recess or taper, in which one end of the Entklinkungshebels is pivoted in befindlichem in its release position trip slider, while the other end of Entklinkungshebels the signaling element releases.
- a spring force ensures that the released signaling element is shifted into its signaling position.
- the signaling element actuates an electrical signaling switch by means of the spring force.
- the blocking element can be moved back into the release position when the signaling element is pushed back.
- a technically simple embodiment provides that the signaling element is designed as a plunger.
- FIG. 1 shows a signaling switch module 1 for a circuit breaker (hereinafter referred to as switch briefly) for low voltages in a schematic representation.
- the switch has via switching contacts, not shown, over which the current flows and which are separated from each other in the event of a short circuit for interrupting the current.
- a trigger is arranged in the switch, to which an electromagnet belongs, which is at least partially traversed by the current.
- the magnetic forces of the electromagnet shift a triggering element 2 in the form of a magnetic release slide 2a in its release position.
- the trigger slide 2a actuates a biased switching unit (a switch lock, not shown), which causes the separation of the switch contacts in a known manner.
- the switch switch module which can be inserted into the switch by latching has a signaling element 3 in the form of a plunger 3a, which is mounted longitudinally displaceable in the signaling switch module 1.
- the plunger 3a is urged by a spring 4, which the plunger 3a in FIG. 1 pushes up.
- the displacement of the plunger 3a upwards is limited by a blocking element 5 in the form of a Entklinkungshebels 5a; the unlatching lever 5a is located in FIG. 1 in its blocking position.
- the unlatching lever 5a is pressed by the plunger 3a against the trigger slide 2a.
- the release slide 2a has a groove-shaped recess 6, which ensures the corresponding interaction of the three elements ram 3a, unlatching lever 5a and release slide 2a.
- FIG. 2 shows the signaling switch module 1 after occurrence of a short circuit, with the magnetic force of the electromagnet against the force of the spring 7 in its release position shifted release slide 2a.
- the unlatching lever 5a is of Plunger 3a has been moved with one of its two free ends in the recess 6 and thus in its release position (pivoted).
- the shutter slide 2a is in FIG. 2 further held by the unlatching lever 5a in its release position.
- the plunger 3a in turn has been moved by the spring 4 in its upper (end) position, ie it is located in FIG. 2 in its signaling position in which he presses against an electrical signaling switch 8 and actuates it.
- FIG. 3 shows a side view of the signaling switch module 1 with an acknowledgment and display button 9, which cooperates with a bolt 10 extending transversely to the plunger 3a, wherein a bevel formed on the acknowledgment and display button 9 11 moves it to the right from the signaling switch module 1, when the plunger 3a is moved upwards (to the right and up respectively refer to FIG. 3 ).
- the outstanding from the switch acknowledgment and display button 9 indicates to the outside a short-circuit release.
- the acknowledgment and display button 9 is in FIG. 3 to see more closely.
- FIG. 5 shows the insertion of the signaling switch module 1 in the switch, which is simply inserted while it is locked in the switch. Then (see straight arrow in FIG. 5 ) pushes the plunger 3a directly down, while the unlatching lever 5a meets the trigger slide 2a, whereby the unlatching lever 5a is pivoted to its blocking position. Subsequently, the plunger 3a is released again and moved by the spring 4 until it stops at the unlatching lever 5a upwards.
Landscapes
- Breakers (AREA)
- Push-Button Switches (AREA)
Abstract
Description
Die Erfindung betrifft einen Schalter, insbesondere Leistungsschalter für Niederspannungen, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a switch, in particular circuit breaker for low voltages, according to the preamble of claim 1.
Leistungsschalter für Niederspannungen sind allgemein bekannt und bewirken die Unterbrechung des durch den Schalter fließenden Stroms im Falle eines Überstroms oder Kurzschlusses. Der Strom fließt dabei über Schaltkontakte, die bei Überstrom oder Kurzschluss voneinander getrennt werden. Zum Trennen der Schaltkontakte dient ein Auslöser, dessen Elektromagnet ebenfalls von dem Strom durchflossen wird und der im Kurzschlussfall aufgrund der dabei erzeugten relativ großen Magnetkräfte einen Schieber verschiebt. Dieser wirkt auf ein vorgespanntes Schaltschloss ein, welches die Schaltkontakte trennt.Low voltage circuit breakers are well known and cause the interruption of the current flowing through the switch in the event of an overcurrent or short circuit. The current flows via switch contacts which are disconnected in the event of overcurrent or short circuit. To disconnect the switch contacts is a trigger whose electromagnet is also traversed by the current and shifts a slide in the case of short circuit due to the relatively large magnetic forces generated thereby. This acts on a preloaded switch lock, which separates the switch contacts.
Derartige Auslöser weisen zur Überstromerkennung fast immer eine zusätzliche thermische Einheit auf, so dass es nicht ohne Weiteres möglich ist, zu erkennen, ob ein Überstrom oder ein Kurzschluss zur Auslösung des Schalters geführt hat.Such triggers almost always have an additional thermal unit for overcurrent detection, so that it is not readily possible to detect whether an overcurrent or a short circuit has led to the tripping of the switch.
Die Aufgabe der Erfindung ist es, ein nachrüstbares Meldeschalter-Modul anzugeben, welches eine Kurzschluss-Auslösung signalisiert.The object of the invention is to specify a retrofittable signaling switch module which signals a short-circuit tripping.
Die Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst; die Unteransprüche stellen vorteilhafte Ausgestaltungen dar.The object is solved by the features of claim 1; the dependent claims represent advantageous embodiments.
Die Lösung sieht vor, dass ein in den Schalter eingesetztes Meldeschalter-Modul ein Blockierelement und ein verschiebbares Signalisierungselement aufweist, wobei das Blockierelement aus einer Blockierstellung in eine Freigabestellung bewegt wird, in der es die Verschiebung des Signalisierungselements in eine Signalisierungsstellung freigibt, und dass das Blockierelement bei einem Kurzschluss durch das Auslöseelement in seine Freigabestellung bewegt wird. Der Kerngedanke der Erfindung besteht also darin, das Blockierelement des Meldeschalter-Moduls mit dem vorhandenen Auslöseelement des Schalters zusammenwirken zu lassen, d. h. das Auslöseelement gibt das Blockierelement frei, so dass das Signalisierungselement einen Kurzschluss anzeigen oder die Anzeige z. B. durch Schalterbetätigung auslösen kann.The solution provides that a detector switch module inserted into the switch has a blocking element and a displaceable signaling element, wherein the blocking element is moved from a blocking position to a release position, in which it releases the displacement of the signaling element in a signaling position, and that the blocking element is moved in a short circuit by the trigger element in its release position. The core idea of the invention is thus to let the blocking element of the signaling switch module cooperate with the existing trigger element of the switch, ie the triggering element releases the blocking element, so that the signaling element indicate a short circuit or the display z. B. can trigger by switch operation.
Eine technisch einfache Ausführung sieht vor, dass das Blockierelement als drehgelagerter Entklinkungshebel und das Auslöseelement als Auslöseschieber ausgebildet sind, wobei der Auslöseschieber eine Ausnehmung oder Verjüngung aufweist, in die ein Ende des Entklinkungshebels bei in seiner Auslösestellung befindlichem Auslöseschieber eingeschwenkt ist, während das andere Ende des Entklinkungshebels das Signalisierungselement freigibt.A technically simple embodiment provides that the blocking element are designed as a rotatably mounted Entklinkungshebel and the trigger element as a trigger slide, wherein the trigger slide has a recess or taper, in which one end of the Entklinkungshebels is pivoted in befindlichem in its release position trip slider, while the other end of Entklinkungshebels the signaling element releases.
Im einfachsten Fall sorgt eine Federkraft dafür, dass das freigegebene Signalisierungselement in seine Signalisierungsstellung verschoben wird.In the simplest case, a spring force ensures that the released signaling element is shifted into its signaling position.
Um die Kurzschlussauslösung quasi an einem beliebig entfernten Ort anzuzeigen, wird vorgeschlagen, dass das Signalisierungselement mittels der Federkraft einen elektrischen Signalisierungsschalter betätigt.In order to display the short-circuit release virtually at an arbitrarily remote location, it is proposed that the signaling element actuates an electrical signaling switch by means of the spring force.
Um einen Kurzschluss anzuzeigen und gleichzeitig ein versehentliches Wiedereinschalten des Schalters zu verhindern, wird vorgeschlagen, dass die Federkraft über das freigegebene Signalisierungselement einen Quittier- und Anzeigeknopf nach außen schiebt, der nach außen verschobene Quittier- und Anzeigeknopf die Kurzschlussauslösung anzeigt und durch Drücken des Quittier- und Anzeigeknopfs das Signalisierungselement und das Auslöseelement über das Blockierelement wieder zurückgeschoben werden.In order to indicate a short circuit and at the same time to prevent the switch from being accidentally switched on again, it is proposed that the spring force relay via the released signaling element an acknowledgment and display button externally pushes, moved outward acknowledgment and display button displays the short-circuit release and the signaling element and the trigger element are pushed back on the blocking element by pressing the acknowledgment and display button.
Zweckmäßig ist es, wenn das Blockierelement bei zurückgeschobenem Signalisierungselement wieder in die Freigabestellung bewegbar ist.It is expedient if the blocking element can be moved back into the release position when the signaling element is pushed back.
Eine technisch einfache Ausführung sieht vor, dass das Signalisierungselement als Stößel ausgebildet ist.A technically simple embodiment provides that the signaling element is designed as a plunger.
Die Erfindung wird nachfolgend anhand einer Zeichnung näher beschrieben. Es zeigen:
- Figur 1
- ein Meldeschalter-Modul in einer schematischen Darstellung,
Figur 2- das Meldeschalter-Modul gemäß
Figur 1 nach aktiviertem magnetischem Auslöseschieber bei einem Kurzschluss, Figur 3- eine Seitenansicht des Meldeschalter-Moduls 1 mit einem zusätzlichen Quittier- und Anzeigeknopf,
Figur 4- den Quittier- und Anzeigeknopf gemäß
undFigur 3 Figur 5- das Einstecken des Meldeschalter-Moduls 1 in den Schalter.
- FIG. 1
- a signaling switch module in a schematic representation,
- FIG. 2
- the signaling switch module according to
FIG. 1 after activated magnetic release slider in the event of a short circuit, - FIG. 3
- a side view of the signaling switch module 1 with an additional acknowledgment and display button,
- FIG. 4
- the acknowledgment and display button according to
FIG. 3 and - FIG. 5
- the insertion of the signaling switch module 1 in the switch.
Das in den Schalter durch Verrastung einsetzbare Meldeschalter-Modul 1 weist ein Signalisierungselement 3 in Form eines Stößels 3a auf, der im Meldeschalter-Modul 1 längsverschiebbar gelagert ist. Der Stößel 3a wird durch eine Feder 4 kraftbeaufschlagt, welche den Stößel 3a in
Der Auslöseschieber 2a weist eine nutförmige Ausnehmung 6 auf, welche für das entsprechende Zusammenwirken der drei Elemente Stößel 3a, Entklinkungshebel 5a und Auslöseschieber 2a sorgt.The
In der Signalisierungsstellung kann der aus dem Meldeschalter-Modul 1 herausragende Stößel 3a durch das Herausragen bereits die Kurzschlussauslösung anzeigen.In the signaling position, the protruding from the signaling switch module 1
Der Quittier- und Anzeigeknopf 9 ist in
Umgekehrt bewirkt ein Verschieben des Quittier- und Anzeigeknopfs 9 nach links eine Verschiebung des Stößels 3a nach unten. Durch Drücken des Quittier- und Anzeigeknopfs 9 wird der Stößel 3a wieder nach unten geschoben und gleichzeitig das Einschalten des Schalters quittiert.Conversely, a shift of the acknowledgment and display button 9 to the left causes a displacement of the
Bei zurückgeschobenem Stößel 3a kann der Entklinkungshebel 5a wieder in seine Blockierstellung schwenken.When pushed back
Claims (8)
mit Schaltkontakten, über die der Strom fließt und die bei einem Kurzschluss voneinander getrennt werden, und
mit einem Auslöser, welcher einen Elektromagneten aufweist, der von mindestens einem Teil des Stroms durchflossen wird und dessen Magnetkräfte ein Auslöseelement (2) bei einem Kurzschluss in eine Auslösestellung verschiebt, in der es eine Schalteinheit zum Trennen der Schaltkontakte betätigt,
dadurch gekennzeichnet,
dass ein in den Schalter eingesetztes Meldeschalter-Modul (1) ein Blockierelement (5) und ein verschiebbares Signalisierungselement (3) aufweist, wobei das Blockierelement (5) bei einem Kurzschluss aus einer Blockierstellung in eine Freigabestellung bewegt wird, in der es die Verschiebung des Signalisierungselements (3) in eine Signalisierungsstellung freigibt, und
dass das Blockierelement (5) bei einem Kurzschluss durch das Auslöseelement (2) in seine Freigabestellung bewegt wird.Switches, in particular circuit breakers for low voltages, for interrupting a current in the event of a short circuit,
with switching contacts, over which the current flows and which are separated from each other in the event of a short circuit, and
with a trigger, which has an electromagnet through which flows at least part of the current and whose magnetic forces shifts a trigger element (2) in the event of a short circuit into a release position in which it actuates a switching unit for disconnecting the switching contacts,
characterized,
in that a signaling switch module (1) inserted into the switch has a blocking element (5) and a displaceable signaling element (3), wherein the blocking element (5) is moved from a blocking position to a release position in the event of a short circuit, in which it controls the displacement of the blocking element Signaling element (3) releases in a signaling position, and
that the blocking element (5) is moved in its release position by a short circuit through the trigger element (2).
dadurch gekennzeichnet,
dass das Blockierelement (5) als drehgelagerter Entklinkungshebel (5a) und das Auslöseelement (2) als Auslöseschieber (2a) ausgebildet sind, wobei der Auslöseschieber eine Ausnehmung (6) oder Verjüngung aufweist, in die ein Ende des Entklinkungshebels (5a) bei in seiner Auslösestellung befindlichem Auslöseschieber (2a) eingeschwenkt ist, während das andere Ende des Entklinkungshebels (5a) das Signalisierungselement (3) freigibt.Switch according to claim 1,
characterized,
that the blocking element (5) is rotationally mounted release lever (5a) and the triggering element (2) as a tripping slide (2a) are formed, wherein the actuating slide has a recess (6) or taper in which one end of Entklinkungshebels (5a) when in its Triggering slide located (2a) is pivoted, while the other end of Entklinkungshebels (5a) releases the signaling element (3).
dadurch gekennzeichnet,
dass das freigegebene Signalisierungselement (3) durch Federkraft in seine Signalisierungsstellung verschoben wird.Switch according to claim 1 or 2,
characterized,
that the released signaling element (3) is moved by spring force into its signaling position.
dadurch gekennzeichnet,
dass das Signalisierungselement (3) zur Signalisierung der Kurzschlussauslösung mittels der Federkraft einen Signalisierungsschalter (8) betätigt.Switch according to claim 3,
characterized,
that the signaling element (3) for signaling the short-circuit tripping means of the spring force actuates a signaling switch (8).
dadurch gekennzeichnet,
dass die Federkraft über das freigegebene Signalisierungselement (3) einen Quittier- und Anzeigeknopf (9) nach außen schiebt, der nach außen verschobene Quittier- und Anzeigeknopf (9) die Kurzschlussauslösung anzeigt und durch Drücken des Quittier- und Anzeigeknopfs (9) das Signalisierungselement (3) und das Auslöseelement (2) über das Blockierelement (5) wieder zurückgeschoben werden.Switch according to claim 3 or 4,
characterized,
that the spring force on the shared signaling element (3) pushes a Acknowledgment and indicator button (9) outwardly, indicating outwardly shifted Acknowledgment and indicator button (9), the short-circuit trip and by pressing the Acknowledgment and indicating button (9), the signaling element ( 3) and the trigger element (2) via the blocking element (5) are pushed back again.
dadurch gekennzeichnet,
dass das Blockierelement (5) bei zurückgeschobenem Signalisierungselement (3) wieder in die Freigabestellung bewegbar ist.Switch according to one of claims 1 - 5,
characterized,
that the blocking element (5) is movable back into the release position when the signaling element (3) is pushed back.
dadurch gekennzeichnet,
dass das Signalisierungselement (3) als Stößel (3a) ausgebildet ist.Switch according to one of claims 1 - 6,
characterized,
that the signaling element (3) as a tappet (3a) is formed.
dadurch gekennzeichnet,
dass das Auslöseelement (2) durch das Blockierelement (5) in der Auslösestellung gehalten und wieder zurückgeschoben wird.Switch according to one of claims 1 - 7,
characterized,
that the triggering element (2) is held by the blocking element (5) in the release position and pushed back again.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010022596 DE102010022596A1 (en) | 2010-05-31 | 2010-05-31 | Switch, in particular circuit breaker for low voltage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2390895A1 true EP2390895A1 (en) | 2011-11-30 |
EP2390895B1 EP2390895B1 (en) | 2016-12-28 |
Family
ID=44581020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11159537.7A Not-in-force EP2390895B1 (en) | 2010-05-31 | 2011-03-24 | Switch, in particular circuit breaker for low voltages |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2390895B1 (en) |
CN (1) | CN102280319B (en) |
DE (1) | DE102010022596A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012203685A1 (en) * | 2012-03-08 | 2013-09-12 | Siemens Aktiengesellschaft | Short-circuit signaling module for an electrical switching device and electrical switching device |
DE102016123957A1 (en) * | 2016-12-09 | 2018-06-14 | Eaton Industries (Austria) Gmbh | breaker |
CN112965006B (en) * | 2019-04-22 | 2022-04-01 | 福建通力达实业有限公司 | Intelligent circuit breaker of long-range networking |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1628317A2 (en) * | 2004-08-19 | 2006-02-22 | Siemens Aktiengesellschaft | Circuit breaker with short circuit and overload trip indicator and according method |
DE102006057648A1 (en) * | 2006-12-07 | 2008-06-12 | Abb Ag | Switching device with rotary handle |
DE102008008032A1 (en) * | 2008-02-06 | 2009-08-13 | Siemens Aktiengesellschaft | Release device for releasing electrical switch, has elements that are arranged such that one of elements causes release movement of other element during execution of release movement, where latter element is moved along with former element |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1525513A (en) * | 2003-06-24 | 2004-09-01 | 正泰集团公司 | Residual current action tripping device for phase line and mid line circuit breaker |
DE102004056300A1 (en) * | 2004-11-23 | 2006-06-08 | Abb Patent Gmbh | Device for indicating and signaling a tripping of an electrical switching device by a short-circuit current |
DE102006009228B4 (en) * | 2006-02-28 | 2014-02-20 | Siemens Aktiengesellschaft | Circuit breaker with integrated auxiliary switch or error signal switch |
CN101656180B (en) * | 2008-08-18 | 2012-08-22 | 湖北盛佳电器设备有限公司 | Electromagnetic short circuit protection breaker |
-
2010
- 2010-05-31 DE DE201010022596 patent/DE102010022596A1/en not_active Withdrawn
-
2011
- 2011-03-24 EP EP11159537.7A patent/EP2390895B1/en not_active Not-in-force
- 2011-05-31 CN CN201110144044.8A patent/CN102280319B/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1628317A2 (en) * | 2004-08-19 | 2006-02-22 | Siemens Aktiengesellschaft | Circuit breaker with short circuit and overload trip indicator and according method |
DE102006057648A1 (en) * | 2006-12-07 | 2008-06-12 | Abb Ag | Switching device with rotary handle |
DE102008008032A1 (en) * | 2008-02-06 | 2009-08-13 | Siemens Aktiengesellschaft | Release device for releasing electrical switch, has elements that are arranged such that one of elements causes release movement of other element during execution of release movement, where latter element is moved along with former element |
Also Published As
Publication number | Publication date |
---|---|
EP2390895B1 (en) | 2016-12-28 |
CN102280319B (en) | 2015-07-08 |
DE102010022596A1 (en) | 2011-12-01 |
CN102280319A (en) | 2011-12-14 |
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