EP0691668A1 - Thermische Untereinheit für Schutzschalter - Google Patents

Thermische Untereinheit für Schutzschalter Download PDF

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Publication number
EP0691668A1
EP0691668A1 EP95401653A EP95401653A EP0691668A1 EP 0691668 A1 EP0691668 A1 EP 0691668A1 EP 95401653 A EP95401653 A EP 95401653A EP 95401653 A EP95401653 A EP 95401653A EP 0691668 A1 EP0691668 A1 EP 0691668A1
Authority
EP
European Patent Office
Prior art keywords
sub
piece
circuit breaker
thermal
assembly
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
EP95401653A
Other languages
English (en)
French (fr)
Other versions
EP0691668B1 (de
Inventor
Jean-Pierre Lipari
Jean-Paul Ponsini
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.)
Legrand SA
Legrand SNC
Original Assignee
Legrand SA
Legrand SNC
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 Legrand SA, Legrand SNC filed Critical Legrand SA
Publication of EP0691668A1 publication Critical patent/EP0691668A1/de
Application granted granted Critical
Publication of EP0691668B1 publication Critical patent/EP0691668B1/de
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
    • 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
    • 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
    • H01H71/08—Terminals; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5855—Electric connections to or between contacts; Terminals characterised by the use of a wire clamping screw or nut
    • H01H2001/5861—Box connector with a collar or lug for clamping internal rail and external conductor together by a tightening screw
    • 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
    • H01H71/08—Terminals; Connections
    • H01H2071/084—Terminals; Connections specially adapted for avoiding decalibration of trip unit, e.g. bimetal, when fixing conductor wire to connector
    • 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
    • H01H71/002—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00 with provision for switching the neutral conductor
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0214—Housing or casing lateral walls containing guiding grooves or special mounting facilities

Definitions

  • the present invention relates to the field of circuit breakers.
  • a circuit breaker comprises one or more isolated circuits, each of these circuits extending between an input terminal and an output terminal and comprising a fixed contact-movable contact couple associated with an extinguishing chamber d 'bow. At least one of these circuits includes one or more trip units associated with a circuit breaker mechanism controlling the movements of the mobile contacts of the circuit breaker.
  • These triggers can be either bimetal thermal triggers, or electromagnetic triggers with excitation coil.
  • the present invention relates to circuit breaker circuits comprising at least one bimetal thermal trip device. It relates more particularly to circuit breakers whose elements are concentrated in a small box.
  • phase circuit includes trip devices.
  • it is a bimetal thermal trip device and an electromagnetic trip device with excitation coil.
  • An example of such a unipolar and neutral circuit breaker is given in the European patent published under the number 403358.
  • phase circuit which can be integrated into such a single-pole and neutral circuit breaker is as follows: one of the terminals is connected to the bimetal strip which is itself connected, on the one hand, to a training horn d 'arc, and, on the other hand, to the mobile phase contact; the other terminal is connected to one end of the excitation coil, the other end of which is connected to another arc-forming horn on which the fixed contact is installed.
  • arcing horns the two metal plates between which forms and then propagates the electric arc opening of said circuit, the corresponding arc extinguishing chamber intervening between these horns.
  • phase circuit of such a circuit breaker breaks down into a first sub-assembly, called an electromagnetic sub-assembly, comprising one of the terminals, the excitation coil and an arcing horn carrying the fixed contact.
  • a second sub-assembly called thermal sub-assembly, comprising the other terminal, the bimetallic strip, the other arc-forming horn and the movable contact.
  • the latter is also integral with the circuit breaker mechanism of the circuit breaker which is located in a part of the housing covering the parts reserved for the phase and neutral circuits.
  • the thermal subassembly which has just been defined can be integrated not only into the phase circuit of a single-pole and neutral circuit breaker but also into any circuit breaker circuit comprising a bimetal thermal trip device.
  • the present invention relates more particularly to such a thermal sub-assembly.
  • the terminal comprises a cage crossed by a clamping screw and in which there is a rigid connection on which the end of a braid is welded, the other end of this braid being welded on a large faces of the foot of the bimetallic strip.
  • the other large face of the foot of the bimetallic strip is welded to the corresponding arc-forming horn, the latter extending locally parallel to said bimetallic strip.
  • a second braid is welded, on the one hand, to the upper part of the bimetallic strip and, on the other hand, to the corresponding movable contact.
  • a thermal sub-assembly similar to the previous one has also been proposed, except that the rigid connection of the terminal is larger and is directly welded to the foot of the bimetallic strip, extending locally parallel to the latter. The base of the bimetallic strip is thus sandwiched between this connection and the arc-forming horn.
  • the terminal, the bimetallic strip and the lower arc-forming horn form a rigid assembly which is easy to install in the case of the circuit breaker.
  • this sub-assembly no longer comprises only seven elements, the assembly of which requires only four welds.
  • this part must be made of steel.
  • the arcing horns must be made of this metal to ensure formation and guidance of the arc adapted to its extinction in the arc extinguishing chamber.
  • steel is not a suitable material as regards the connection between the terminal and the bimetallic strip. In fact, this material is not a good conductor enough to avoid local heating problems when the current is strong. Thus, we realized that the arrangement of a steel part playing both the role of connection between the bollard and the bimetallic strip and that of an arc-forming horn was not conceivable, in particular for circuit breakers whose the operating current is greater than 16 amps.
  • the fact that the part serving as a bimetal support is connected to the terminal gives rise to a risk of imbalance of the bimetallic strip when manipulating the clamping screw with a view to installing an electric wire in the terminal. Indeed, the action of the tightening screw on this wire will be reflected, through this part, towards the bimetallic strip. However, the latter, to properly perform its function, must not be moved from the position in which it has been adjusted.
  • the object of the present invention is in particular to solve all of the problems which have just been mentioned.
  • the invention provides a thermal sub-assembly adapted to be integrated into a circuit breaker of the type comprising, in a housing, one or more isolated circuits, each of these circuits extending between an input terminal and a terminal. output and comprising a fixed contact-movable contact pair associated with an arc extinguishing chamber, at least one of these circuits comprising one or more trip devices associated with a circuit breaker mechanism controlling all of said movable contacts, said circuit being formed by the association of said thermal sub-assembly, comprising a terminal, a bimetal thermal trip device, an arc-forming horn and a movable contact, and of another sub-assembly, comprising at least one terminal, a arc-forming horn and a fixed contact, the corresponding arc-extinguishing chamber located between the respective arc-forming horns of these two sub-assemblies, said thermal sub-assembly comprising a part m onoblock simultaneously forming an
  • this plate will be a strip of two-material copper / steel material. Strips of this material are indeed commercially available comprising a copper strip and a steel strip welded side by side by electron bombardment.
  • a circuit breaker housing adapted to receive a thermal sub-assembly is characterized in that it comprises means for immobilizing the one-piece part of the thermal sub-assembly, at least two of said immobilization means acting on said one-piece piece between the terminal and the cut support portion of the bimetallic strip, at different places along the length of said piece.
  • immobilization means make it possible to prevent stresses exerted on the one-piece part of the thermal sub-assembly by the terminal clamping screw from causing a disturbance of the bimetallic strip. It is necessary that there be at least two immobilization means operating at different locations along the length of the one-piece piece between the terminal and the bimetallic strip support. Indeed, if there is only one, the action of the clamping screw on the piece can cause its local deformation by bending around said immobilization means, causing a disruption of the bimetallic strip.
  • FIG. 1 A first embodiment of the present invention will now be described with reference to FIGS. 1 to 4. It is, as can be seen in FIG. 1, a thermal sub-assembly 1 comprising a terminal 2, a thermal trip device with bimetallic strip 3, a lower arc-forming horn 4B and a movable contact 5 connected to said bimetallic strip by a braid 8.
  • This thermal sub-assembly 1 is adapted to be integrated into the phase circuit of a single-pole and neutral circuit breaker.
  • such a circuit breaker comprises a phase circuit and a neutral circuit extending one next to the other between respective input and output terminals, and each comprising a fixed contact-movable contact couple. associated with an arc extinguishing chamber, the phase circuit comprising a bimetal thermal trip device and an electromagnetic trip device with excitation coil associated with a circuit breaker mechanism operating above the phase and neutral circuits, said phase mechanism controlling the movable phase and neutral contacts.
  • phase circuit of such a circuit breaker will be formed by the association of the thermal sub-assembly 1 according to the present invention, of another sub-assembly, called the electromagnetic sub-assembly, comprising a terminal, the coil of excitation and the upper arc-forming horn carrying the fixed contact, and the arc extinguishing chamber.
  • the thermal sub-assembly 1 comprises a single piece 4, one end of which is engaged with a stirrup 6 forming a movable cage of the terminal 2, and on which the bimetallic strip 3 is welded.
  • This single piece 4 is shown alone in Figure 3. As seen in this figure, this piece is formed by an elongated plate folded several times, so that it has two parts 4A and 4B.
  • the first part 4A of the one-piece part 4 extends first of all horizontally then substantially vertically downwards, finally, going back upwards by describing a U.
  • first part 4A of the part 4 forms a first sub-part 31.
  • two lateral projections 30 are formed on the free end of this subpart 31.
  • This sub-part 31 of the first part 4A of the part 4 is, as can be seen in FIG. 1, adapted to cooperate with the stirrup 6. More precisely, this sub-part 31 crosses the stirrup 6, its width being adapted to the interior width of said stirrup, so that sub-portion 31 and stirrup 6 can slide vertically relative to one another.
  • the end of a clamping screw 7, acting along the height of the stirrup 6, is adapted to be worn on this subpart 31 in order to fix the relative height of said part and of said stirrup.
  • the projections 30 and an additional lateral projection 12 formed on one side of the sub-part 31 limit the longitudinal movement of the stirrup on said sub-part.
  • the part 4 is bent downwards, so that said part 4A has a second sub-part 32 extending downwards in a generally vertical direction.
  • the latter is provided with two lateral projections 33.
  • this second sub-part is slightly folded below the projections 33, so that its lower part is slightly offset longitudinally.
  • the first part 4A of the part 4 after the second sub-part 32, continues with a third sub-part 34 offset laterally relative to the sub-parts 31 and 32.
  • this sub-part 34 after the transverse section which connects it to the sub-part 32, extends first downwards along a first vertical branch 34A, then, after a bend , extends upwards along a second vertical branch 34B.
  • the vertical branch 34B of the sub-part 34 ends in a branch transverse 37 centered relative to the longitudinal axis AA, said vertical branch 34B being on one side of this axis.
  • a tab 35 starts from the transverse branch 37.
  • the tab 35 extends substantially parallel to the end of the sub-part 34.
  • this tab 35 extends downwards, in a substantially straight line, with a certain inclination, so that its end is close to the lower end of the first vertical branch 34A of the sub-part 34.
  • the end 36 of the tab 35 is folded so as to be offset from the rest of said tab. It is on this end 36 of the lug 35 that the bimetal strip can be welded, as seen in FIG. 1.
  • the tab 35 is an integral part of the part 4. It is simply a portion of said part which is cut so that only one end of this portion is linked to the rest of said part, as is see it well in Figure 4.
  • the part 4 is bent towards the horizontal and has a second part 4B.
  • this part 4B extends first downwards with a certain inclination, forming a branch 38B, then horizontally, forming a branch 38C.
  • This part 4B is centered relative to the longitudinal axis AA of the part 4.
  • the part 4 before folding, as shown in FIG. 4, is obtained by cutting a plate of two-material copper / steel material.
  • strips of this material comprising a copper strip and a steel strip welded side by side by electron bombardment, are commercially available.
  • the separation between the two materials corresponds to the median longitudinal axis of the strip in question.
  • the part 4 is cut transversely in the strip of bi-material material, that is to say that its longitudinal axis AA corresponds to a width of said strip. It is cut so that its first part 4A is entirely of copper and its second part 4B is entirely of steel. In Figure 4, we see the line 40 of separation between the copper strip and the steel strip.
  • a housing which can advantageously receive the thermal sub-assembly 1, and of which only a middle part 10 is shown here, has, in conventional manner, a generally parallelepiped shape.
  • a front part of this box is reserved for the circuit breaker circuit breaker mechanism, the rest of the box being shared between the neutral circuit and the phase circuit which extend one next to the other, parallel to the large faces.
  • This housing consists of the assembly of two half-shells acting on either side of a longitudinal plane, and of the central part 10 taken between said half-shells.
  • the central part 10 comprises an insulating partition 11 separating the phase and neutral circuits of the circuit breaker.
  • two parts 11A of this partition 11 extend in the median plane of the housing.
  • the remaining part 11B of the partition 11, connecting the two parts 11A, is offset with respect to the latter towards the large lateral face of the housing corresponding to the compartment of the neutral circuit.
  • the phase circuit is therefore installed in the larger of the two compartments delimited on either side of the partition 11.
  • the phase circuit will be installed on the central part 10 and then covered by the corresponding half-shell.
  • This piece 10 comes from the molding of the reliefs and hollows forming means for positioning and / or fixing the various elements of said phase circuit.
  • the corresponding half-shell has reliefs and hollows complementary to those of part 10, making it possible to complete the fixing of the various elements.
  • the stirrup 6 forming a movable cage of the terminal 2 is installed in a half-housing 14, delimited by the side wall 18 of the part 10, a lower transverse partition 15 and a lateral transverse partition 19.
  • a half-housing 14 is associated a complementary half-housing (not shown) formed on the corresponding half-shell to form a housing in which the stirrup 6 can slide vertically.
  • the screw 7 is also placed in a half-housing of the part 10 adapted to be associated with a complementary half-housing (not shown) of the corresponding half-shell.
  • a lateral portion of the end of this sub-part 31, including one of the lateral projections 30, is introduced into a housing 21 formed in the side wall 18 of the part 10, at the top a notch 16 intended to form, in cooperation with a complementary notch of the corresponding half-shell, an access port to the terminal 2.
  • the second sub-part 32 of this part 4A is in abutment against the lower part of the transverse partition 19 whose upper part, slightly offset with respect to said lower part, limits as we have seen the caliper housing 6.
  • One of the lateral projections 33 is engaged with a housing 22 formed in the partition 11.
  • the lateral offset occurring between the second sub-part 32 and the third sub-part 34 of the part 4B of the part 4 corresponds to the offset between the parts 11A and 11B of the partition 11, the part 11A extending in a median plane of the circuit breaker, and the part 11B being offset towards the compartment reserved for the neutral circuit.
  • this third sub-part 34 remains close to the partition 11, leaving a large free space in which the bimetallic strip can be struggled.
  • This sub-part 34 passes between two transverse walls 20 and 23 which delimit a passage extending first vertically, then horizontally, as can be seen in FIG. 2.
  • two pins 27 and 28 are formed one above the other on the opposite walls respectively 20 and 23, said lugs being adapted to deform elastically when the vertical branch 34A of the sub-part 34 is introduced into said vertical passage, so as to immobilize said branch.
  • the transverse wall 23 is of a height such that it does not touch the tab 35 opposite which it is located, as can be seen in FIG. 2.
  • the top of the vertical branch 34B of the sub-part 34 is in abutment against a transverse relief 25.
  • the part 4B of said part 4 first passes over this transverse relief 25 and below a relief 26, then follows a transverse wall 24 which extends said relief 25, as seen in FIG. 2.
  • the part 4 forms bimetallic support, by means of the tab 35 on which the bimetallic strip is welded.
  • Part 4A of this part provides the electrical connection between, on the one hand, the bimetallic strip and, on the other hand, the terminal of which it forms the fixed conductive part.
  • This part 4A is entirely of copper, a good conductive material.
  • part 4B of this part forms a lower arc-forming horn of the circuit circuit of the circuit breaker.
  • This part is entirely made of steel, a material suitable for the formation of an electric arc.
  • the half-shell forming the cover of the compartment reserved for the phase circuit is installed on said central part, the lateral portion of the end of the sub-part 31 of part 4A of part 4 which is outside the housing 21 will be installed in a housing formed on said half-shell (not shown), complementary to said housing 21.
  • the lateral projection 33 still free from the sub-part 32 will be installed in a housing (not shown) formed in this half-shell.
  • the two projections 33 will thus be trapped in respective housings which together form a second means of immobilizing the one-piece part 4 in the case of the circuit breaker.
  • first and second immobilization means are added the pins 27 and 28 which immobilize the first vertical branch 34A of the third sub-part 34 of the part 4A, forming together a third means of immobilizing the monobloc part 4 in the circuit breaker box.
  • the part of the thermal sub-assembly which carries the bimetallic strip retains a certain flexibility in order to allow the latter to be adjusted.
  • the support of the bimetallic strip that is to say the tab 35 which is connected to the rest of the part 4 only by one end, is flexible enough to allow the adjustment of said bimetallic strip.
  • the second and third immobilization means intervene between terminal 2 and the bimetallic strip support leg 35 in two different places along the length of said part.
  • second and third immobilization means make it possible to prevent transmission to the lug 35 of disturbances due to stresses exerted on the part 4 by the screw 7.
  • the arrangement of at least two immobilization means intervening between the terminal and the bimetal support avoids local deformation by bending of the part 4.
  • the tab 35 carrying the bimetallic strip is connected to the rest of the part 4 in a part of the latter very far from the terminal 2 and, therefore, of any disturbances which may arise from the action of the screw 7.
  • the numerous bends in part 4 also contribute to attenuating the propagation of these disturbances.
  • the immobilization means intervene on either side of the first downward bend as described in part 4, on the one hand, and on either side of the first lateral bend of this part, on the other hand. This arrangement advantageously contributes to the attenuation of the disturbances propagating on the part 4 between the terminal and the bimetallic strip support.
  • circuit breaker For market requirements, it is necessary to have two different versions of circuit breaker, one for which the phase circuit is located to the right of the circuit breaker in front view and the other for which this circuit is located at left of the circuit breaker in front view. Depending on whether it is to be integrated into a phase circuit acting on the right or on the left of the circuit breaker, the one-piece part of the thermal sub-assembly must be different.
  • FIG. 4 shows a part 4 intended to be integrated into a phase circuit acting on the right of the circuit breaker.
  • FIG. 5 shows a part 104 intended to be integrated into a phase circuit acting on the left of the circuit breaker.
  • the parts located in FIGS. 5 and 6, to the right of the transverse axis BB of parts 4 and 104 are identical.
  • the parts of these parts located to the left of the axis BB they are symmetrical with respect to the longitudinal axis AA.
  • the same tool can be used to carry out the folding operations allowing the production of parts 4 and 104.
  • ends 36 and 136 of the lugs 35 and 135 of the parts 4 and 104 are both centered relative to the longitudinal axis AA of the part 4. This makes it possible to facilitate the automated welding operations of the bimetallic strip, axis AA, which is the median axis of part 4B of part 4, which can be taken as a reference axis.
  • a unipolar and neutral circuit breaker can be converted into the circuit breaker part of a unipolar and neutral differential circuit breaker by a few adjustments to its structure.
  • the primary neutral and phase windings of the differential part must be connected in series on the corresponding circuits of the circuit breaker part.
  • the connection of the primary phase winding to the circuit circuit of the circuit breaker is made by two transverse connections, one of which is engaged with a connection connected to the bimetallic strip and the other engaged with a connected connection. at the terminal.

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  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
EP19950401653 1994-07-08 1995-07-07 Thermische Untereinheit für Schutzschalter Expired - Lifetime EP0691668B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9408497 1994-07-08
FR9408497A FR2722331B1 (fr) 1994-07-08 1994-07-08 Sous-ensemble thermique pour disjoncteur

Publications (2)

Publication Number Publication Date
EP0691668A1 true EP0691668A1 (de) 1996-01-10
EP0691668B1 EP0691668B1 (de) 1999-12-22

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ID=9465197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950401653 Expired - Lifetime EP0691668B1 (de) 1994-07-08 1995-07-07 Thermische Untereinheit für Schutzschalter

Country Status (4)

Country Link
EP (1) EP0691668B1 (de)
DE (1) DE69514050T2 (de)
ES (1) ES2139857T3 (de)
FR (1) FR2722331B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0828276A2 (de) * 1996-09-09 1998-03-11 Siemens Aktiengesellschaft Thermischer Überlastschutz
DE19912124A1 (de) * 1999-03-18 2000-09-21 Abb Patent Gmbh Thermische Auslöseeinrichtung
WO2006017426A1 (en) * 2004-08-03 2006-02-16 Siemens Energy & Automation, Inc. Systems, methods, and device for actuating a circuit breaker
EP2402972A1 (de) * 2010-07-02 2012-01-04 Schneider Electric Industries SAS Elektrische Anschlussvorrichtung zwischen dem Sockel eines Bimetallstreifens und einer Klemmenleiste in einem elektrischen Unterbrechungsgerät, und mit einer solchen Vorrichtung ausgestatteter Schalter
EP2897152A1 (de) * 2014-01-17 2015-07-22 Siemens Aktiengesellschaft Thermische Auslösevorrichtung, Schaltvorrichtung, thermischer magnetischer Schutzschalter und Verfahren zum Schutz einer elektrischen Schaltung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005020215A1 (de) * 2005-04-30 2006-11-09 Abb Patent Gmbh Thermischer Auslöser
DE102009021773B4 (de) * 2009-05-18 2014-12-04 Abb Ag Thermischer Auslöser und elektrisches Schaltgerät mit einem thermischen Auslöser

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2226725A1 (en) * 1973-04-17 1974-11-15 Creusot Loire Bimetallic element for thermic switch - deforming due to heating by Joule effect
FR2434474A1 (fr) 1978-08-24 1980-03-21 Legrand Sa Disjoncteur a reglage de calibre
DE8330704U1 (de) * 1983-10-26 1984-11-15 Brown, Boveri & Cie Ag, 6800 Mannheim Thermischer Auslöser
FR2580861A1 (fr) 1985-04-20 1986-10-24 Licentia Gmbh Disjoncteur de protection de canalisations electriques
DE3734396A1 (de) * 1987-10-10 1989-04-27 Asea Brown Boveri Elektrisches schaltgeraet
EP0338868A1 (de) * 1988-04-21 1989-10-25 Hager Electro S.A. Modulares elektrisches Schutz- oder Befehlsgerät
EP0403358A1 (de) 1989-06-16 1990-12-19 Hager Electro S.A. Null- und Phasenschalter
EP0569650A1 (de) * 1992-05-13 1993-11-18 Hager Electro S.A. Phasen- und Nulleiter-Schutzschalter

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2226725A1 (en) * 1973-04-17 1974-11-15 Creusot Loire Bimetallic element for thermic switch - deforming due to heating by Joule effect
FR2434474A1 (fr) 1978-08-24 1980-03-21 Legrand Sa Disjoncteur a reglage de calibre
DE8330704U1 (de) * 1983-10-26 1984-11-15 Brown, Boveri & Cie Ag, 6800 Mannheim Thermischer Auslöser
FR2580861A1 (fr) 1985-04-20 1986-10-24 Licentia Gmbh Disjoncteur de protection de canalisations electriques
DE3734396A1 (de) * 1987-10-10 1989-04-27 Asea Brown Boveri Elektrisches schaltgeraet
EP0338868A1 (de) * 1988-04-21 1989-10-25 Hager Electro S.A. Modulares elektrisches Schutz- oder Befehlsgerät
EP0403358A1 (de) 1989-06-16 1990-12-19 Hager Electro S.A. Null- und Phasenschalter
EP0569650A1 (de) * 1992-05-13 1993-11-18 Hager Electro S.A. Phasen- und Nulleiter-Schutzschalter

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0828276A3 (de) * 1996-09-09 1998-10-14 Siemens Aktiengesellschaft Thermischer Überlastschutz
CN1068969C (zh) * 1996-09-09 2001-07-25 西门子公司 热过载保护装置
EP0828276A2 (de) * 1996-09-09 1998-03-11 Siemens Aktiengesellschaft Thermischer Überlastschutz
DE19912124B4 (de) * 1999-03-18 2007-10-11 Abb Patent Gmbh Thermische Auslöseeinrichtung
DE19912124A1 (de) * 1999-03-18 2000-09-21 Abb Patent Gmbh Thermische Auslöseeinrichtung
US7391289B2 (en) 2004-08-03 2008-06-24 Siemens Energy & Automation, Inc. Systems, methods, and device for actuating a circuit breaker
WO2006017426A1 (en) * 2004-08-03 2006-02-16 Siemens Energy & Automation, Inc. Systems, methods, and device for actuating a circuit breaker
EP2402972A1 (de) * 2010-07-02 2012-01-04 Schneider Electric Industries SAS Elektrische Anschlussvorrichtung zwischen dem Sockel eines Bimetallstreifens und einer Klemmenleiste in einem elektrischen Unterbrechungsgerät, und mit einer solchen Vorrichtung ausgestatteter Schalter
FR2962254A1 (fr) * 2010-07-02 2012-01-06 Schneider Electric Ind Sas Dispositif de raccordement electrique entre le pied d'un bilame et une plage de borne dans un appareil de coupure electrique, et disjoncteur comportant un tel dispositif
CN102315049A (zh) * 2010-07-02 2012-01-11 施耐德电器工业公司 电连接器件和断路器
CN102315049B (zh) * 2010-07-02 2015-04-15 施耐德电器工业公司 电连接器件和断路器
EP2897152A1 (de) * 2014-01-17 2015-07-22 Siemens Aktiengesellschaft Thermische Auslösevorrichtung, Schaltvorrichtung, thermischer magnetischer Schutzschalter und Verfahren zum Schutz einer elektrischen Schaltung
US9508516B2 (en) 2014-01-17 2016-11-29 Siemens Aktiengesellschaft Thermal trip device having a current redirecting linking element, switching device, thermal magnetic circuit breaker and method for protecting an electric circuit

Also Published As

Publication number Publication date
DE69514050T2 (de) 2000-04-20
FR2722331A1 (fr) 1996-01-12
FR2722331B1 (fr) 1996-09-27
DE69514050D1 (de) 2000-01-27
EP0691668B1 (de) 1999-12-22
ES2139857T3 (es) 2000-02-16

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