EP0548730A2 - Thermal tripping means - Google Patents

Thermal tripping means

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Publication number
EP0548730A2
EP0548730A2 EP92121252A EP92121252A EP0548730A2 EP 0548730 A2 EP0548730 A2 EP 0548730A2 EP 92121252 A EP92121252 A EP 92121252A EP 92121252 A EP92121252 A EP 92121252A EP 0548730 A2 EP0548730 A2 EP 0548730A2
Authority
EP
European Patent Office
Prior art keywords
area
free end
notch
strip
bent
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
EP92121252A
Other languages
German (de)
French (fr)
Other versions
EP0548730B1 (en
EP0548730A3 (en
Inventor
Peter Dr. Hoyer
Klaus Dr. Wittmann
Georgi Cwetanski
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 Patent GmbH
Original Assignee
ABB Patent 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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0548730A2 publication Critical patent/EP0548730A2/en
Publication of EP0548730A3 publication Critical patent/EP0548730A3/en
Application granted granted Critical
Publication of EP0548730B1 publication Critical patent/EP0548730B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
    • H01H69/01—Apparatus or processes for the manufacture of emergency protective devices for calibrating or setting of devices to function under predetermined conditions
    • 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
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H71/7427—Adjusting only the electrothermal mechanism
    • 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
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element

Definitions

  • the invention relates to a thermal release which can be installed in an electrical switching device and is designed as a strip and is clamped in place at one end and the other, free end of which is bent when an overcurrent occurs due to the heating caused by the overcurrent.
  • thermobimetals In electrical switchgear, thermal overcurrent relays or motor circuit breakers, strip-like or strip-shaped thermobimetals are normally used as triggers when overcurrents occur, which are heated either by direct or indirect heating. Recently, it has also become known to use strips of so-called shape memory alloys instead of thermobimetals.
  • shape memory alloys instead of thermobimetals.
  • the thermobimetals - like the shape memory alloys - are clamped in place at one end, whereas the other end is freely movable and presses against a ratchet lever when bending, thereby opening a latching point and releasing an energy store for actuating contact pieces.
  • All the triggers have in common that they are used to achieve a certain tripping characteristic, i.e. H. to trigger at a certain overcurrent, must be adjusted.
  • thermobimetal In the case of miniature circuit breakers, the thermobimetal is often fastened to one leg of a U-shaped or V-shaped fastening part, with a screw between the leg with which the thermobimetal can be adjusted. Adjustment by a screw is also known in other designs; Here is the nut part, in which the screw presses against the bimetal in the area of his foot and adjusts the free end.
  • thermobimetal there is a weakening in the area of the base of the thermobimetal, which allows the thermobimetal to bend with plastic deformation in the area of the foot.
  • a plate is provided in the area of the foot, one edge of which runs perpendicular to the longitudinal extent and parallel to the surface of the bimetal; the adjustment is carried out by adjusting the plate by deforming it or a web serving to hold the plate on a stationary element in such a way that the said edge bends the thermobimetal.
  • plastic support plates or washers are used between the phase failure protection slides and the thermobimetals.
  • thermobimetal Due to the fact that the thermobimetal is deformed in the area of the foot, the angle of the free end changes with respect to the latching point or the phase failure protection slide, which can cause friction which has an influence on the triggering accuracy.
  • the object of the invention is to adjust a thermal release using a strip made of a bimetallic metal and the like by adjusting the force direction of the release at the same time.
  • the strip is provided with a notch in the area of the free end, as a result of which an end area is formed which can be easily deformed by the notch due to the reduction in cross section.
  • the end region between the notch and the free end can have a cross section that is the same or reduced compared to the rest of the strip.
  • the adjustment of the free end or bending of the free end of the strip takes place by means of a fork-like device in which the strip is held stationary in the area of the notch and the end is gripped with a fork part and bent in a corresponding manner.
  • the free end i.e. H. the area between the notch and the end forms a straight plane or is bent in itself, the fold line being perpendicular to the longitudinal extension of the strip.
  • the latter buckling is useful if a special force component is to be achieved on the latching point in order to avoid jamming at the latching point or - if phase failure sliders are provided - on the slider system.
  • thermobimetal 10 has two areas 13 and 14 separated by two notches 11 and 12, the lengths L and l of which are dimensioned such that L »l is.
  • the width B1 of the area 13 is equal to the width B2 of the area 14, whereas the cross section of the area 13 is very much larger in comparison with the cross section of the bimetal 10 in the area of the two notches.
  • the bimetallic metal 15 can also be designed such that an area 18 is formed by notches 16 and 17, the width B4 is smaller, possibly half as large as the width B3.
  • the aspect ratios are the same.
  • FIG. 3 shows the thermal bimetal 10 and it can be seen that it is bent by an angle ⁇ in the area of the notches 11, 12, the area 13 being flat.
  • the bimetallic metal 15, which is shown in a side view in FIG. 4, is also kinked in the area 16/17, the end area 18 being kinked by a line, whereby two sub-areas 19 and 20 are formed which form an obtuse angle form.
  • the partial area 20 can run approximately parallel to the remaining area of the bimetal. How the obtuse angle between the two partial areas 19 and 20 is dimensioned depends on the desired direction of force of the free end of the thermobimetal, in this case the partial area 20, on the latching point or - in the case of a motor protection switch - on a phase failure slide.
  • thermobimetal 10 can be preformed, for example in the region of the notch 11 and 12, so that the region 14 is bent by an angle ⁇ 1.
  • the angle ⁇ 1 can be smaller than the angle ⁇ (see Figure 3).
  • FIG. 3 shows three elements of a device with which the end region 14 is deformed.
  • This device has a fixed stop 21 to which two movable fork fingers 22 are assigned; the two fork fingers 22 take the free end 14 between them and can thus deform the end region 14, and when the two fork fingers 22 rotate and shift around one another, the bent version according to FIG. 4 can be produced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

Die Erfindung betrifft einen in ein elektrisches Schaltgerät einbaubarer, als Streifen ausgebildeter thermischer Auslöser, der in Form eines Bimetalls (10) eingebaut ist. Dieses Thermobimetall (10) ist an einem Ende ortsfest eingespannt und sein freies Ende biegt sich bei Auftreten eines Überstromes aufgrund der durch den Überstrom bewirkten Erwärmung aus. Im Bereich des freien Endes ist wenigstens eine Einkerbung (11, 12) vorgesehen und der freie Endbereich (14) zwischen der Einkerbung (11, 12) dient zum Justieren und ist dazu in geeigneter Weise verbiegbar. <IMAGE>The invention relates to a thermal release which can be built into an electrical switching device and is designed as a strip and which is installed in the form of a bimetal (10). This thermobimetal (10) is clamped in place at one end and its free end bends when an overcurrent occurs due to the heating caused by the overcurrent. At least one notch (11, 12) is provided in the area of the free end and the free end area (14) between the notch (11, 12) is used for adjustment and can be bent in a suitable manner. <IMAGE>

Description

Die Erfindung betrifft einen in ein elektrisches Schaltgerät einbaubaren, als Streifen ausgebildeten thermischen Auslöser, der an einem Ende ortsfest eingespannt ist und dessen anderes, freies Ende sich bei Auftreten eines Überstromes aufgrund der durch den Überstrom bewirkten Erwärmung ausbiegt.The invention relates to a thermal release which can be installed in an electrical switching device and is designed as a strip and is clamped in place at one end and the other, free end of which is bent when an overcurrent occurs due to the heating caused by the overcurrent.

In elektrischen Schaltgeräten, thermischen Überstromrelais oder Motorschutzchaltern werden als Auslöser bei Auftreten von Überströmen normalerweise streifenartige oder streifenförmige Thermobimetalle benutzt, die entweder durch direkte oder indirekte Beheizung erwärmt werden. Neuderdings ist auch bekannt geworden, anstatt Thermobimetalle Streifen aus sog. Formgedächtnislegierungen zu verwenden. Die Thermobimetalle - ebenso wie die Formgedächtnislegierungen - sind an einem Ende ortsfest eingespannt, wogegen das andere Ende frei bewegbar ist und beim Ausbiegen gegen einen Klinkenhebel drückt, wodurch eine Verklinkungsstelle geöffnet und ein Energiespeicher zur Betätigung von Kontaktstücken freigegeben werden.In electrical switchgear, thermal overcurrent relays or motor circuit breakers, strip-like or strip-shaped thermobimetals are normally used as triggers when overcurrents occur, which are heated either by direct or indirect heating. Recently, it has also become known to use strips of so-called shape memory alloys instead of thermobimetals. The thermobimetals - like the shape memory alloys - are clamped in place at one end, whereas the other end is freely movable and presses against a ratchet lever when bending, thereby opening a latching point and releasing an energy store for actuating contact pieces.

Allen den Auslösern ist gemeinsam, daß sie zur Erzielung einer bestimmten Auslösecharakteristik, d. h. zum Auslösen bei einem bestimmten Überstrom, einjustiert werden müssen.All the triggers have in common that they are used to achieve a certain tripping characteristic, i.e. H. to trigger at a certain overcurrent, must be adjusted.

Zur Justierung eines Bimetalls sind mehrere Maßnahmen bekannt geworden. Bei Leitungsschutzschaltern wird das Thermobimetall oft an einem Schenkel eines U- oder V-förmigen Befestigungsteiles befestigt, wobei sich zwischen dem Schenkel eine Schraube befindet, mit der das Thermobimetall verstellt werden kann. Eine Justierung durch eine Schraube ist auch bei anderen Bauweisen bekannt; hierbei ist das Mutternteil, in das die Schraube drückt gegen das Thermobimetall im Bereich seines Fußes und verstellt das freie Ende.Several measures have become known for adjusting a bimetal. In the case of miniature circuit breakers, the thermobimetal is often fastened to one leg of a U-shaped or V-shaped fastening part, with a screw between the leg with which the thermobimetal can be adjusted. Adjustment by a screw is also known in other designs; Here is the nut part, in which the screw presses against the bimetal in the area of his foot and adjusts the free end.

Bei einer anderen Ausgestaltung befindet sich im Bereich des Fußes des Thermobimetalls eine Schwächung, wodurch eine Verbiegung des Thermobimetalls mit plastischer Verformung im Fußbereich möglich ist.In another embodiment, there is a weakening in the area of the base of the thermobimetal, which allows the thermobimetal to bend with plastic deformation in the area of the foot.

Bei einer anderen Ausführung der Justierung ist im Bereich des Fußes eine Platte vorgesehen, deren eine Kante senkrecht zur Längserstreckung und parallel zur Fläche des Thermobimetalls verläuft; die Justierung erfolgt durch Verstellung der Platte, in dem diese oder ein zur Halterung der Platte an einem ortsfesten Element dienender Steg so verformt wird, daß sich die genannte Kante das Thermobimetall verbiegt.In another embodiment of the adjustment, a plate is provided in the area of the foot, one edge of which runs perpendicular to the longitudinal extent and parallel to the surface of the bimetal; the adjustment is carried out by adjusting the plate by deforming it or a web serving to hold the plate on a stationary element in such a way that the said edge bends the thermobimetal.

Bei Motorschutzschaltern oder in Überstromrelais sind zwischen den Phasenausfallschutzschiebern und den Thermobimetallen Auflageplättchen oder Scheibchen aus Kunststoff eingesetzt, die zur Einstellunng des Weges des freien Endes hin zu der Kraftangriffsstelle an einem Phasenausfallschutzschieber hinzugefügt oder ausgetauscht werden können.In motor protection switches or in overcurrent relays, plastic support plates or washers are used between the phase failure protection slides and the thermobimetals.

Dadurch, daß das Thermobimetall im Bereich des Fußes verformt wird, verändert sich der Winkel des freien Endes bezogen auf die Verklinkungsstelle bzw. den Phasenausfallschutzschieber, wodurch Reibungen entstehen können, die einen Einfluß auf die Auslösegenauigkeit haben.Due to the fact that the thermobimetal is deformed in the area of the foot, the angle of the free end changes with respect to the latching point or the phase failure protection slide, which can cause friction which has an influence on the triggering accuracy.

Aufgabe der Erfindung ist es, einen thermischen Auslöser unter Verwendung eines Streifens aus einem Thermobimetall und dergleichen durch die Justierung gleichzeitig auch die Kraftrichtung des Auslösers einzustellen.The object of the invention is to adjust a thermal release using a strip made of a bimetallic metal and the like by adjusting the force direction of the release at the same time.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruches 1 gelöst.This object is achieved by the characterizing features of claim 1.

Erfindungsgemäß also wird der Streifen im Bereich des freien Endes mit einer Einkerbung versehen, wodurch ein Endbereich gebildet wird, der aufgrund der Querschnittsverringerung durch die Einkerbung leicht verformt werden kann.According to the invention, the strip is provided with a notch in the area of the free end, as a result of which an end area is formed which can be easily deformed by the notch due to the reduction in cross section.

Dabei kann der Endbereich zwischen der Einkerunb dem freien Ende einen gegenüber dem übrigen Bereich des Streifens gleichen oder verringerten Querschnitt aufweisen.The end region between the notch and the free end can have a cross section that is the same or reduced compared to the rest of the strip.

Die Verstellung des freien Endes bzw. Verbiegung des freien Endes des Streifens erfolgt mittels einer gabelartigen Vorrichtung, bei der der Streifen im Bereich der Einkerbung ortsfest gehalten und das Ende mit einem Gabelteil erfaßt und in entsprechender Weise verbogen wird.The adjustment of the free end or bending of the free end of the strip takes place by means of a fork-like device in which the strip is held stationary in the area of the notch and the end is gripped with a fork part and bent in a corresponding manner.

Dabei besteht die Möglichkeit, daß das freie Ende, d. h. der Bereich zwischen der Einkerbung und dem Ende eine gerade Ebene bildet oder in sich geknickt ist, wobei die Knicklinie senkrecht zu der Längserstreckung des Streifens verläuft. Die letztere Knickung ist dann sinnvoll, wenn eine spezielle Kraftkomponente auf die Verklinkungsstelle erzielt werden soll, um Verklemmungen an der Verklinkungsstelle oder - wenn Phasenausfallschieber vrogesehen sind, am Schiebersystem zu vermeiden.There is a possibility that the free end, i.e. H. the area between the notch and the end forms a straight plane or is bent in itself, the fold line being perpendicular to the longitudinal extension of the strip. The latter buckling is useful if a special force component is to be achieved on the latching point in order to avoid jamming at the latching point or - if phase failure sliders are provided - on the slider system.

Anhand der Zeichnung, in der einige Ausführungsbeispiele der Erfindung dargestellt sind, sollen die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung näher erläutert und beschrieben werden.The invention and further advantageous refinements and improvements of the invention are to be explained and described in more detail with reference to the drawing, in which some exemplary embodiments of the invention are shown.

Es zeigen:

Figuren 1 und 2
zwei Thermobimetalle mit unterschiedlichen Endbereichen,
Figuren 3 und 4
zwei Thermobimetalle mit unterschiedlicher Verformung der Endbereiche, in Seitenansicht, und
Figur 5
eine Seitenansicht eines Thermobimetalls im sog. Anlieferungszustand vor der Justierung.
Show it:
Figures 1 and 2
two thermobimetals with different end areas,
Figures 3 and 4
two thermobimetals with different deformations of the end areas, in side view, and
Figure 5
a side view of a bimetallic strip in the so-called delivery state before adjustment.

Das Thermobimetall 10 gemäß Figur 1 besitzt zwei durch zwei Einkerbungen 11 und 12 voneinander getrennte Bereiche 13 und 14, deren Längen L und l so bemessen sind, daß

L » l

Figure imgb0001


ist. Die Breite B₁ des Bereiches 13 ist gleich der Breite B₂ des Bereiches 14, wogegen der Querschnitt des Bereiches 13 im Vergleich zu dem Querschnitt des Thermobimetalls 10 im Bereich der beiden Einkerbungen sehr viel größer ist.The thermobimetal 10 according to FIG. 1 has two areas 13 and 14 separated by two notches 11 and 12, the lengths L and l of which are dimensioned such that

L »l
Figure imgb0001

is. The width B₁ of the area 13 is equal to the width B₂ of the area 14, whereas the cross section of the area 13 is very much larger in comparison with the cross section of the bimetal 10 in the area of the two notches.

Wie aus der Figur 2 ersichtlich ist, kann das Thermobimetall 15 auch so ausgebildet sein, daß durch Einkerbungen 16 und 17 ein Bereich 18 gebildet ist, dessen Breite B₄ kleiner ist, ggf. halb so groß, wie die Breite B₃. Die Längenverhältnisse sind gleich.As can be seen from Figure 2, the bimetallic metal 15 can also be designed such that an area 18 is formed by notches 16 and 17, the width B₄ is smaller, possibly half as large as the width B₃. The aspect ratios are the same.

Die Figur 3 zeigt das Thermobimetall 10 und man erkennt, daß dieses im Bereich der Einkerbungen 11, 12 um einen Winkel α abgeknickt ist, wobei der Bereich 13 eben ausgebildet ist.FIG. 3 shows the thermal bimetal 10 and it can be seen that it is bent by an angle α in the area of the notches 11, 12, the area 13 being flat.

Das Thermobimetall 15, welches in der Figur 4 in Seitenansicht dargestellt ist, ist im Bereich 16/17 ebenfalls abgeknickt, wobei der Endbereich 18 um eine Linie in sich geknickt ist, wodurch zwei Teilbereiche 19 und 20 gebildet sind, die einen stumpfen Winkel mit sich bilden. Dabei kann der Teilbereich 20 etwa parallel zu dem übrigen Bereich des Thermobimetalls verlaufen. Wie der stumpfe Winkel zwischen den beiden Teilbereichen 19 und 20 bemessen ist, hängt von der gewünschten Kraftrichtung des freien Endes des Thermobimetalls, hier also des Teilbereiches 20, auf die Verklinkungsstelle bzw. - bei einem Motorschutzschalter - auf einen Phasenausfallschieber ab.The bimetallic metal 15, which is shown in a side view in FIG. 4, is also kinked in the area 16/17, the end area 18 being kinked by a line, whereby two sub-areas 19 and 20 are formed which form an obtuse angle form. The partial area 20 can run approximately parallel to the remaining area of the bimetal. How the obtuse angle between the two partial areas 19 and 20 is dimensioned depends on the desired direction of force of the free end of the thermobimetal, in this case the partial area 20, on the latching point or - in the case of a motor protection switch - on a phase failure slide.

Zur Erleichterung kann das Thermobimetall 10 beispielsweise im Bereich der Einkerbung 11 und 12 vorgeformt sein, so daß der Bereich 14 um einen Winkel α₁ abgebogen ist. Der Winkel α₁ kann kleiner als der Winkel α (siehe Figur 3) sein.To facilitate the thermobimetal 10 can be preformed, for example in the region of the notch 11 and 12, so that the region 14 is bent by an angle α₁. The angle α₁ can be smaller than the angle α (see Figure 3).

In der Figur 3 sind drei Elemente einer Vorrichtung dargestellt, mit der der Endbereich 14 verformt wird. Diese Vorrichtung besitzt einen ortsfesten Anschlag 21, dem zwei bewegbare Gabelfinger 22 zugeordnet sind; die beiden Gabelfinger 22 nehmen das freie Ende 14 zwichen sich und können damit den Endbereich 14 verformen, wobei dann, wenn sich die beiden Gabelfinger 22 umeinander drehen und verschieben, die geknickte Version gemäß Figur 4 hergestellt werden kann.FIG. 3 shows three elements of a device with which the end region 14 is deformed. This device has a fixed stop 21 to which two movable fork fingers 22 are assigned; the two fork fingers 22 take the free end 14 between them and can thus deform the end region 14, and when the two fork fingers 22 rotate and shift around one another, the bent version according to FIG. 4 can be produced.

Claims (3)

In ein elektrisches Schaltgerät einbaubarer, als Streifen ausgebildeter thermischer Auslöser, vorzugsweise in Form eines Thermobimetalls, der an einem Ende ortsfest eingespannt ist und dessen anderes, freies Ende bei Auftreten eines Überstromes sich aufgrund der durch den Überstrom bewirkten Erwärmung ausbiegt, dadurch gekennzeichnet, daß der Streifen im Bereich des freien Endes wenigstens eine Einkerbung (11, 12; 16, 17) aufweist und daß der freie Endbereich (14; 18) zwischen der wenigstens einen Einkerbung (11, 12; 16, 17) zum Justieren dient und dazu in geeigneter Weise verbiegbar ist.In a built-in electrical switchgear, designed as a strip thermal trigger, preferably in the form of a thermobimetal, which is clamped at one end in a fixed position and the other, free end bends when an overcurrent occurs due to the heating caused by the overcurrent, characterized in that the Strip in the area of the free end has at least one notch (11, 12; 16, 17) and that the free end area (14; 18) between the at least one notch (11, 12; 16, 17) is used for adjustment and more suitable for this Way is bendable. Auslöser nach Anspruch 1, dadurch gekennzeichnet, daß der Endbereich (14, 18) zwischen der Einkerbung (11, 12; 16, 17) und dem Ende einen gegenüber dem übrigen Bereich des Streifens verringerten Querschnitt aufweist.Trigger according to Claim 1, characterized in that the end region (14, 18) between the notch (11, 12; 16, 17) and the end has a cross section which is reduced in comparison with the rest of the region of the strip. Auslöser nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß der freie Endbereich (14, 18) in sich geknickt ist, wodurch zwei unter einem stumpfen Winkel gegeneinander gebogene Teilbereiche (19, 20) gebildet sind.Trigger according to one of the preceding claims, characterized in that the free end region (14, 18) is bent in itself, whereby two partial regions (19, 20) bent at an obtuse angle are formed.
EP92121252A 1991-12-24 1992-12-14 Thermal tripping means Expired - Lifetime EP0548730B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4142965A DE4142965A1 (en) 1991-12-24 1991-12-24 THERMAL RELEASE
DE4142965 1991-12-24

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EP0548730A2 true EP0548730A2 (en) 1993-06-30
EP0548730A3 EP0548730A3 (en) 1993-10-13
EP0548730B1 EP0548730B1 (en) 1995-08-23

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1243793A3 (en) * 2001-03-24 2005-09-07 Conti Temic microelectronic GmbH Actuator, especially as part of an actuating drive for an imaging device
WO2006017426A1 (en) * 2004-08-03 2006-02-16 Siemens Energy & Automation, Inc. Systems, methods, and device for actuating a circuit breaker
WO2013083831A1 (en) * 2011-12-09 2013-06-13 Eaton Industries (Austria) Gmbh Method for adjusting a tripping unit for a safety switch

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4336073A1 (en) * 1993-10-22 1995-04-27 Abb Patent Gmbh Thermal overcurrent release for an electrical switching device
DE19735135A1 (en) * 1997-08-13 1999-02-25 Siemens Ag Adjusting bimetallic switch elements e.g. for circuit breakers
DE10119290A1 (en) * 2001-04-20 2002-10-24 Conti Temic Microelectronic Actuating element, in particular as part of an actuator for an image acquisition system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE883778C (en) * 1943-07-30 1953-07-20 Voigt & Haeffner Ag Two-metal strips, especially for multi-pole triggers for electrical switchgear
DE1029916B (en) * 1957-02-13 1958-05-14 Anni Margareta Leyhausen Geb E Method for setting tripping devices on small electrical circuit breakers
FR1392626A (en) * 1964-02-04 1965-03-19 Comp Generale Electricite Fixing and adjustment device, in particular for thermal relays
FR1564704A (en) * 1968-02-21 1969-04-25

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1243793A3 (en) * 2001-03-24 2005-09-07 Conti Temic microelectronic GmbH Actuator, especially as part of an actuating drive for an imaging device
WO2006017426A1 (en) * 2004-08-03 2006-02-16 Siemens Energy & Automation, Inc. Systems, methods, and device for actuating a circuit breaker
US7391289B2 (en) 2004-08-03 2008-06-24 Siemens Energy & Automation, Inc. Systems, methods, and device for actuating a circuit breaker
WO2013083831A1 (en) * 2011-12-09 2013-06-13 Eaton Industries (Austria) Gmbh Method for adjusting a tripping unit for a safety switch

Also Published As

Publication number Publication date
EP0548730B1 (en) 1995-08-23
DE4142965A1 (en) 1993-07-01
DE59203382D1 (en) 1995-09-28
EP0548730A3 (en) 1993-10-13

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