EP0450104B1 - Disjoncteur rapide - Google Patents

Disjoncteur rapide Download PDF

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Publication number
EP0450104B1
EP0450104B1 EP90105938A EP90105938A EP0450104B1 EP 0450104 B1 EP0450104 B1 EP 0450104B1 EP 90105938 A EP90105938 A EP 90105938A EP 90105938 A EP90105938 A EP 90105938A EP 0450104 B1 EP0450104 B1 EP 0450104B1
Authority
EP
European Patent Office
Prior art keywords
contact
circuit breaker
contact member
arc
speed circuit
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 - Lifetime
Application number
EP90105938A
Other languages
German (de)
English (en)
Other versions
EP0450104A1 (fr
Inventor
Fritz Dipl.-Phys. Pohl
Wilfried Jaehner
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to EP90105938A priority Critical patent/EP0450104B1/fr
Priority to DE59009511T priority patent/DE59009511D1/de
Priority to AT90105938T priority patent/ATE126388T1/de
Publication of EP0450104A1 publication Critical patent/EP0450104A1/fr
Application granted granted Critical
Publication of EP0450104B1 publication Critical patent/EP0450104B1/fr
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
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/365—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/222—Power arrangements internal to the switch for operating the driving mechanism using electrodynamic repulsion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/32—Insulating body insertable between contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/302—Means for extinguishing or preventing arc between current-carrying parts wherein arc-extinguishing gas is evolved from stationary parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • H01H9/548—Electromechanical and static switch connected in series

Definitions

  • the invention relates to a high-speed switch for low-voltage systems with a device for detecting a short-circuit current and an electrodynamic eddy current release, which is provided with a drive which is arranged in the field of a coil and is provided for moving a contact member in an arcing chamber, the contact member in its direction of movement is provided with alternating electrically conductive contact areas and non-conductive surface areas and the quenching chamber contains contact pins, the ends of which are positively connected to the surface of the contact member.
  • the contact member is cylindrical.
  • Such a switch is known from US-A-3242257.
  • electrodynamic quick releases can also be used, which open the switching contacts within the first half-oscillation of a short-circuit current.
  • the magnetic field of a coil through which alternating current or a current with a high rate of rise flows, induces current in the opposite direction in a drive ring which is inductively coupled to it. Due to the repulsive effect of the two currents, a contact member which is non-positively connected to the drive ring receives a high acceleration. The moving contact element quickly reaches the full starting position through the contact element. With such triggers, switching times of around 0.5 ms can be achieved from the impulse initiation to the switching piece separation. Rising short-circuit currents are limited accordingly by these short idle times (low-voltage circuit breakers by H. Franken, Springer-Verlag 1980).
  • the tubular quenching chamber has a longitudinal bore which is adapted to the cross section of the slide.
  • a piece of metal inserted in the slide connects the contacts in the on position.
  • the slide which can preferably be made of a material that emits gas at elevated temperature, is pushed between the open contacts.
  • a switch of the type mentioned is known, in which the contact member is guided by means of a close-fitting seals in the inner wall of the arcing chamber. Furthermore, from CH-A-379 599 a high-voltage switching device for fast switching off is known, in which the switching bridge is flexibly inserted into a slot of an insulating body using a movable switching bridge and two fixed contact pieces, the isolating strength between the fixed contact pieces being ensured when the switch is switched off .
  • the invention has for its object to provide a high-speed switch that allows a limitation of the short-circuit current in electrical systems by the rapid build-up of a high arc voltage and is constructed in a simple manner.
  • the object is achieved in that the contact member is provided with at least one contact ring, that the contact ring is assigned two contact pieces which are radially opposite one another on the circumference of the contact ring in the hollow cylindrical arcing chamber, and that between the contact ring and the inner wall of the quenching chamber has a defined circumferential gap which is at most 5 mm, preferably at most 0.5 mm, at least about 0.2 mm.
  • a first, second and third contact pin are arranged in the arcing chamber and the contact member is provided with a bridge system which is designed such that it only electrically connects the first and second contact pins when the switch is closed and with the movement of the contact member the electrical connection between this first and second contact is interrupted and the third contact pin is connected to the bridge system, and that there is a defined gap between the contact areas of the bridge system and the inner wall of the arcing chamber, which gap is at most 5 mm, preferably at most 0.5 mm, at least about 0.2 mm.
  • Switches designed in this way have a simple structure and enable currents with large currents to be extinguished in a short time.
  • a particularly advantageous embodiment of the rapid switch contains a contact member with a cylindrical surface which is alternately provided with contact rings and insulating material rings in the direction of movement.
  • Each contact ring is assigned two contact pins, which face each other radially in the hollow cylindrical quenching chamber.
  • a further embodiment of the high-speed switch with contact pins arranged one behind the other in the direction of movement of the contact element can advantageously be used to isolate semiconductor components in the event of a short circuit.
  • FIG. 1 schematically illustrates an exemplary embodiment of a quick switch according to the invention.
  • Figure 2 shows the current profile in a diagram.
  • FIG. 3 shows the current pulse for exciting the eddy current release and
  • FIG. 4 shows the voltage curve.
  • FIG. 5 shows an embodiment of the rapid switch with contact pins, which are radially opposite one another in the arcing chamber.
  • An embodiment of the rapid switch for unlocking a semiconductor component is illustrated in FIG. 6.
  • FIG. 7 shows a special embodiment of the quick switch.
  • a contact member 2 is movably arranged in an arcing chamber 3 in a longitudinal direction.
  • the direction of movement of the contact member 2 is indicated by an arrow 4.
  • the contact member 2 is positively and non-positively connected to the drive ring 6 of an eddy current release 5, the magnet coil of which is denoted by 7 in the figure.
  • the eddy current release 5 is arranged in an enlarged part of the arcing chamber, which is provided with an opening 8 at the other end.
  • two contact pins 11 and 12 are arranged one behind the other in the chamber wall 10 in such a way that their ends rest on one end of a contact bridge 18 in the rest position of the contact member 2, which should consist, for example, of a flat insulating material body the surface are separated from each other by an insulating layer 19.
  • the contact pins 11 and 12 are under a contact pressure, which in the figure by unspecified Feathers is indicated.
  • the coil 7 of the eddy current release 5 can, for example, be connected to an electronic relay which continuously monitors the current rise in the operating current and, when an adjustable current rise or an adjustable response value, for example 2 to 5 times the nominal current, is exceeded, the coil 7 by means of a pulse-shaped release current stimulates.
  • the tripping current generates eddy currents in the drive ring in the opposite direction to the tripping current.
  • the repulsive forces move the contact member 2 abruptly in the direction of arrow 4.
  • the electrically conductive contact areas at the ends of the contact bridge 18 are arranged such that with the movement of the contact member 2 separating distances between the lower ends of the contact pins 11 and 12 and the contact areas of the contact bridge 18 can be opened.
  • the contact pins 11 and 12 are arranged one behind the other in the direction of movement of the contact member 2.
  • a contact bridge can also be provided, the contact areas of which lie opposite one another on the upper and lower flat side of the contact member 2.
  • the contact pins 11 and 12 are then arranged transversely to the longitudinal direction of the contact member 2 in the upper and lower chamber wall 10.
  • FIG. 2 in which the forward current I D between the contact pins 11 and 12 of the high-speed switch is plotted as a function of the time t, in one Switch according to Figure 1 for a prospective, single-pole short-circuit current of, for example, 40 kA at a mains voltage of 240 V ⁇ at time t o a let-through current I D (letthrough current) rise, which is to be deleted by the quick switch.
  • An electronically preselected current threshold value I S defines the triggering condition of the eddy current trigger 5 and should, for example, be approximately 2.5 kA, so that, for example, starting currents for a motor with a nominal current of approximately 100 A cannot lead to triggering. Due to the inherent time of the electronics, not shown in FIG.
  • the build-up of the arc voltage between contacts 11 and 12 begins at time t 2.
  • the time delay between the drive pulse I A at time t 1 and the beginning of the steep arc voltage rise of about 2.5 V / »s at time t 3 should be, for example, about 100» s.
  • This time delay is due to the acceleration phase of the contact member 2, which first has to travel a distance of, for example, approximately 2.5 mm after being driven by the drive ring 6.
  • the forward current I D can thus rise to a maximum value of approximately 5.2 kA.
  • the maximum arc voltage according to FIG. 4 is approximately 700 V.
  • the forward current I D is extinguished and the voltage U at the contact pins 11 and 12 is limited to a voltage of approximately 340 V ⁇ .
  • the erase time from the tripping current I A at time t 1 to the extinction of the forward current I D at time t 4 is thus less than 0.5 ms.
  • a three-phase high-speed switch is provided with contact pins 11 to 16, two of which are each in the wall of a hollow cylindrical chamber 3 radially face each other.
  • the switching sections can be provided for operational switching; the eddy current release 5 is then actuated only in the event of a short circuit at a predetermined current threshold value I S with the release current I A.
  • the switching pins 11 to 16 are then each provided with a drive for a fixed switch-on and switch-off position, these drives are only indicated schematically in the figure, are designated 21 to 26 and are connected to the assigned switch pin only by a dashed line of action.
  • the contact element 2 is provided with a special embodiment of a bridge system 40, in which the contact element is in the switched-on state 2 electrically connects the contact pins 11 and 12 to a contact bridge 38.
  • the contact pin 13 is connected to the bridge system 40 by a further contact bridge 39.
  • the contact bridge 39 is designed so that it forms a common contact surface with the contact bridge 38.
  • This switch is therefore particularly suitable for relieving a semiconductor component 32, for example a thyristor or a triac, in the event of a short circuit.
  • a semiconductor component 32 for example a thyristor or a triac.
  • a rotary movement of the contact member 2 by the eddy current drive 5 can optionally be provided. This will reduce the arc load on the Cylinder circumference evenly distributed.
  • a particularly advantageous further embodiment of the quick switch consists in that a predetermined profile of the outer jacket of the contact member 2 is provided.
  • the contact member 2 with its contact ring 27 and the contact pins 11 and 14 and part of the chamber wall 10 are indicated. Due to the different width of the gap 20 over the displacement path indicated by the directional arrow 4, the increase in voltage of the arc 34 during the movement of the contact member 2 can be set to predetermined values and, at the same time, the amount of the arc voltage can be limited. If necessary, the inner surface of the chamber wall 10 can also be provided with such a profile.
  • the chamber wall 10 can preferably also be provided with blow-out openings 36 and 37, from which separated material can be blown out by the gas pressure of the arc and jamming of the contact member 2 can be avoided.
  • a varistor 42 can be connected in parallel to the individual switching paths, of which one is formed, for example, according to FIG. 7 by the two switching pins 11 and 14 and the contact ring 27. This allows the switching voltage and, accordingly, the arc work to be limited.
  • a commutation contact 44 can preferably also be provided, which can consist, for example, of a contact ring which is embedded in the chamber wall 10.
  • the arc 34 commutates to this commutation contact 44 as soon as the contact ring 27 with the contact member 2 is moved past.
  • the arc 34 is thus always limited to a predetermined length.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Circuit Breakers (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Switches With Compound Operations (AREA)
  • Electrophonic Musical Instruments (AREA)

Claims (11)

  1. Disjoncteur à action rapide pour installations basse tension, comprenant un dispositif pour détecter un courant de court-circuit et un disjoncteur électrodynamique à courants de Foucault (5), dont la bague d'entraînement est disposée dans le champ d'une bobine et qui est prévu pour le déplacement d'un organe de contact (2) dans une chambre d'extinction (3), et dans lequel l'organe de contact (2) comporte, dans sa direction de déplacement (4), alternativement des zones de contact électriquement conductrices et des zones superficielles non conductrices, et la chambre d'extinction (3) contient des broches de contact (12,13), dont les extremités sont réliées, selon une liaison par formes complémentaires, à la surface de l'organe de contact (2), ce dernier étant réalisé avec une forme cylindrique, caractérisé par le fait que l'organe de contact (2) comporte au moins un anneau de contact (27 à 29), qu'à chaque anneau de contact (27 à 29) sont associées deux broches de contact (11,14; 12,15; 13,16), qui sont situées radialement en vis-à-vis l'une de l'autre sur la périphérie de l'anneau de contact (27 à 29), dans la chambre d'extinction en forme de cylindre creux (3), et qu'entre l'anneau de contact (27 à 29) et la paroi intérieure de la chambre d'extinction est disposée une fente circonférentielle définie (20), qui est égale au maximum à 5 mm et de préférence au maximum à 2,5 mm et au moins approximativement à 0,2 mm.
  2. Disjoncteur à action rapide suivant la revendication 1, caractérisé par le fait qu'un mouvement de rotation est superposé au déplacement axial de l'organe de contact (2).
  3. Disjoncteur à action rapide pour installations basse tension, comprenant un dispositif pour détecter un courant de court-circuit et un disjoncteur électrodynamique à courants de Foucault (5), dont la bague d'entraînement est disposée dans le champ d'une bobine et qui est prévu pour le déplacement d'un organe de contact (2) dans une chambre d'extinction (3), et dans lequel l'organe de contact (2) comporte, dans sa direction de déplacement (4), alternativement des zones de contact électriquement conductrices et des zones superficielles non conductrices, et la chambre d'extinction (3) contient des broches de contact (12,13), dont les extrémités sont réliées, selon une liaison par formes complémentaires, à la surface de l'organe de contact (2), caractérisé par le fait que des première, seconde et troisième broches de contact (11 à 13) sont disposées dans la chambre d'extinction et que l'organe de contact (2) est pourvu d'un système en pont (40) qui est agencé de telle sorte qu'il relie de façon électriquement conductrice uniquement des première et seconde broches de contact (11 et 12), lorsque le disjoncteur est fermé, et que la liaison électrique entre ces premier et second contacts (11, 12) est interrompue lors du déplacement de l'organe de contact (2), et qu'entre les zones de contact du système en pont (40) et de la paroi intérieure de la chambre d'extinction est présente une fente définie (20), qui est égale au maximum à 5 mm, de préférence au maximum à 0,5 mm et au moins approximativement à 0,2 mm.
  4. Disjoncteur à action rapide suivant la revendication 3, caractérisé en ce que le système en pont (40) présente un premier pont de contact (38), qui comporte, entre la première broche de contact (11) et la seconde broche de contact (12), une zone superficielle de l'organe de contact (2) d'un matériau isolant, et que le système en pont présente un second pont de contact (39), qui est prévu pour le raccordement de la troisième broche de contact (13), et qui, lorsque le disjoncteur est fermé, est reliée, selon une liaison électriquement conductrice, à la seconde broche de contact (12) et dont la longueur (L), dans la direction de déplacement de l'organe de contact (2), est inférieure à la distance (A) entre la seconde broche de contact (12) et la troisième broche de contact (13).
  5. Disjoncteur à action rapide suivant l'une des revendications 1 à 4, caractérisé par une grandeur de la fente (20), qui est différente dans la direction axiale de l'organe de contact (2).
  6. Disjoncteur à action rapide suivant la revendication 1 ou 3, caractérisé par une réalisation multipolaire, notamment tripolaire.
  7. Disjoncteur à action rapide suivant la revendication 1 ou 3, caractérisé par le fait que les broches de commutation (11 à 16) sont pourvues, pour réaliser la commutation de service, d'un dispositif d'entraînement (21 à 26) pour une position fixe de fermeture et d'ouverture.
  8. Disjoncteur à action rapide suivant la revendication 1 ou 3, caractérisé par le fait qu'une varistance (42) est branchée en parallèle respectivement avec une section de coupure formée par deux broches de contact (11, 16) et une plage de contact.
  9. Disjoncteur à action rapide suivant la revendication 1 ou 3, caractérisé par le fait que des contacts de commutation (44) sont prévus dans la paroi (10) de la chambre, pour limiter la longueur de l'arc et par conséquent la tension de l'arc.
  10. Disjoncteur à action rapide suivant la revendication 1 ou 3, caractérisé par un montage en parallèle des plusieurs broches de commutation.
  11. Disjoncteur à action rapide suivant la revendication 10, caractérisé en ce qu'une résistance (42) est montée en parallèle à l'espace de coupure.
EP90105938A 1990-03-28 1990-03-28 Disjoncteur rapide Expired - Lifetime EP0450104B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP90105938A EP0450104B1 (fr) 1990-03-28 1990-03-28 Disjoncteur rapide
DE59009511T DE59009511D1 (de) 1990-03-28 1990-03-28 Schnellschalter.
AT90105938T ATE126388T1 (de) 1990-03-28 1990-03-28 Schnellschalter.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90105938A EP0450104B1 (fr) 1990-03-28 1990-03-28 Disjoncteur rapide

Publications (2)

Publication Number Publication Date
EP0450104A1 EP0450104A1 (fr) 1991-10-09
EP0450104B1 true EP0450104B1 (fr) 1995-08-09

Family

ID=8203831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90105938A Expired - Lifetime EP0450104B1 (fr) 1990-03-28 1990-03-28 Disjoncteur rapide

Country Status (3)

Country Link
EP (1) EP0450104B1 (fr)
AT (1) ATE126388T1 (fr)
DE (1) DE59009511D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19701311A1 (de) * 1997-01-16 1998-07-23 Kloeckner Moeller Gmbh Strombegrenzender Leistungsschalter
DE19757179A1 (de) * 1997-12-22 1999-06-24 Kloeckner Moeller Gmbh Elektrodynamisch beaufschlagbares Kontaktsystem
DE102004036279A1 (de) * 2004-07-27 2006-03-23 Siemens Ag Schaltgerät für Niederspannungsanwendungen

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2736760B1 (fr) * 1995-07-13 1997-08-22 Carrier Kheops Bac Dispositif commutateur electrique de securite pour vehicule
WO2000022641A1 (fr) * 1998-10-09 2000-04-20 Siemens Aktiengesellschaft Commutateur moyenne tension
FR2790138B1 (fr) * 1999-02-24 2003-03-07 Schneider Electric Ind Sa Appareil de protection electrique tel un disjoncteur, muni d'un ecran de coupure d'arc
WO2001009908A1 (fr) * 1999-07-30 2001-02-08 W.W. Grew & Company Limited Disjoncteurs electriques
GB0414587D0 (en) * 2004-06-30 2004-08-04 Eja Ltd Improvements in or relating to switch contacts
DE102008033804A1 (de) 2008-07-18 2010-01-21 Siemens Aktiengesellschaft Anordnung zum schnellen Schalten eines Kurzschlussstromes in einer Niederspannungsanlage
FR2953322B1 (fr) * 2009-11-27 2013-02-15 Snpe Materiaux Energetiques Interrupteur electrique formant coupe-circuit a actionnement rapide
EP2339599A1 (fr) * 2009-12-22 2011-06-29 ABB Research Ltd. Commutateur et utilisation associée
DE102011000763A1 (de) * 2011-02-16 2012-08-16 Phoenix Contact Gmbh & Co. Kg Trennvorrichtung
DE102011118713A1 (de) * 2011-03-22 2012-09-27 Dehn + Söhne Gmbh + Co. Kg Ein- oder mehrpolige Schalteinrichtung, insbesondere für Gleichstromanwendungen
EP2541570B1 (fr) 2011-06-29 2014-12-24 Raychem International Commutateur électrique pour courants élevés, en particulier avec une performance de résistance élevée aux courts-circuits dans la plage des kA
FR2980301B1 (fr) * 2011-09-21 2014-06-20 Schneider Electric Ind Sas Court-circuiteur electrique a actionneur pyrotechnique
SE536707C2 (sv) * 2012-10-19 2014-06-10 Samuel Dahl Anordning för snabb kortslutning och jordning av faserna i ett kraftnät
WO2015176734A1 (fr) 2014-05-19 2015-11-26 Abb Technology Ltd Appareillage de commutation électrique à limitation des grandes vitesses
DE102014110825A1 (de) 2014-07-30 2014-09-18 Peter Lell Elektrischer Schalter, insbesondere für hohe Spannungen und/oder hohe Ströme
FR3028089B1 (fr) * 2014-10-30 2016-12-30 Alstom Technology Ltd Interrupteur ou disjoncteur a moyenne ou haute tension, pourvu de contacts fixes ameliores, et procede d'utilisation
GB2582307A (en) * 2019-03-18 2020-09-23 Eaton Intelligent Power Ltd Switching device for fast disconnection of short-circuit currents

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB337056A (en) * 1929-07-27 1930-10-27 George Ethelbert Whitehead Improvements in electric switches or circuit breakers
DE675545C (de) * 1935-02-23 1939-05-11 Frida Strauss Geb Ruppel Elektrischer Schalter mit Lichtbogenloeschung durch Druckgas
US3128361A (en) * 1959-02-17 1964-04-07 Siemens Ag High current switch arrangement for quick break
US3242257A (en) * 1963-09-17 1966-03-22 Rostone Corp Arc interrupting molding composition and electrical apparatus made therefrom
DE1590296B1 (de) * 1966-04-21 1971-01-28 Driescher Spezialfab Fritz Loeschkammerschalter mit nach aussen offener Loeschkammer
FR2540665B1 (fr) * 1983-02-04 1987-02-27 Telemecanique Electrique Dispositif interrupteur muni d'un ecran isolant s'interposant entre les contacts lors de la coupure et de moyen de cisaillement de l'arc entre cet ecran et une paroi isolante

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19701311A1 (de) * 1997-01-16 1998-07-23 Kloeckner Moeller Gmbh Strombegrenzender Leistungsschalter
DE19701311B4 (de) * 1997-01-16 2005-08-25 Moeller Gmbh Strombegrenzender Leistungsschalter
DE19757179A1 (de) * 1997-12-22 1999-06-24 Kloeckner Moeller Gmbh Elektrodynamisch beaufschlagbares Kontaktsystem
DE19757179B4 (de) * 1997-12-22 2010-06-10 Moeller Gmbh Elektrodynamisch beaufschlagbares Kontaktsystem
DE102004036279A1 (de) * 2004-07-27 2006-03-23 Siemens Ag Schaltgerät für Niederspannungsanwendungen
US7916442B2 (en) 2004-07-27 2011-03-29 Siemens Aktiengesellschaft Breaker device for low-voltage applications

Also Published As

Publication number Publication date
DE59009511D1 (de) 1995-09-14
EP0450104A1 (fr) 1991-10-09
ATE126388T1 (de) 1995-08-15

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