EP0232787B1 - Contact arrangement for an electrical switch apparatus - Google Patents

Contact arrangement for an electrical switch apparatus Download PDF

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Publication number
EP0232787B1
EP0232787B1 EP87101055A EP87101055A EP0232787B1 EP 0232787 B1 EP0232787 B1 EP 0232787B1 EP 87101055 A EP87101055 A EP 87101055A EP 87101055 A EP87101055 A EP 87101055A EP 0232787 B1 EP0232787 B1 EP 0232787B1
Authority
EP
European Patent Office
Prior art keywords
flank
insulating part
contact piece
guide plate
longer
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
EP87101055A
Other languages
German (de)
French (fr)
Other versions
EP0232787A1 (en
Inventor
Willy Sabisch
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 AT87101055T priority Critical patent/ATE68630T1/en
Publication of EP0232787A1 publication Critical patent/EP0232787A1/en
Application granted granted Critical
Publication of EP0232787B1 publication Critical patent/EP0232787B1/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
    • 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
    • H01H9/46—Means for extinguishing or preventing arc between current-carrying parts using arcing horns
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
    • H01H11/06—Fixing of contacts to carrier ; Fixing of contacts to insulating carrier
    • H01H2011/062—Fixing of contacts to carrier ; Fixing of contacts to insulating carrier by inserting only
    • 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
    • H01H9/0072—Details of switching devices, not covered by groups H01H1/00 - H01H7/00 particular to three-phase switches
    • 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
    • H01H9/02—Bases, casings, or covers
    • H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner

Definitions

  • the invention relates to a contact piece arrangement for an electrical switching device with at least one, having the shape of an unequal leg U, attached to the housing, the longer leg provided with a mounting hole the power connection and the shorter leg on the side facing away from the longer leg Contact is used, and a U-shaped arc baffle, which is electrically conductively connected to the fixed contact, and has two legs, one of which is assigned a threaded hole, the threaded hole being aligned with the fastening bore.
  • the fixed switching piece is first attached to the switching device with a screw. Then the lower iron plate is inserted under the shorter leg of the fixed contact and then the upper iron plate is placed on it. Both iron sheets are then screwed to the longer leg of the contact piece with an additional screw.
  • the present invention has for its object to simplify the known contact piece arrangement in terms of material and assembly costs. This is achieved in a simple manner in that the longer leg of the contact piece can be inserted laterally into grooves in an insulating part which can be connected to the housing, the end part of the longer leg one side, into a recess in the insulating part transversely to the direction of insertion of the longer leg from the side of the longer leg of the contact piece from the leg of the bent arc guide plate inserted before the insertion covers that the threaded hole associated with this leg of the arc guide plate is aligned with the fastening bore, is used for the screw connection without a holding function, the recess being designed and arranged in such a way that the leg inserted by the overlap is held in the inserted position.
  • Additional threaded parts in particular an additional insert nut, can be dispensed with if the thread consists of a thread passage in one leg of the arc guide plate. This is possible in particular because the screw connection does not have a mounting function in the device.
  • the fixed contact is locked in the insulating part.
  • the covered leg of the arc guide plate is inserted with a bend into a groove in the insulating part.
  • the insulating part carries the fixed switching elements of all poles of the switching device, since the insulating part can be inserted into the switching device in a prefabricated manner with all switching elements.
  • an insulating part 3 with the fixed contact pieces 4, the arc baffle 5, is arranged in the lower part 1.
  • the movable contact piece 7 is held in a contact carrier 8 and pressed against the fixed contact piece 4 via a spring 9.
  • the switching mechanism actuating the contact carrier 8 and the triggers influencing the switching mechanism are not shown in the drawing.
  • the insulating part 3 is inserted above the quenching plate arrangement 6 and can be held in a form-fitting manner in the housing by applying the cover part 2.
  • grooves 12 are made, into which the fixed contact pieces 4 can be inserted in the direction of the arrow 13.
  • the base part 14 of the contact piece is made wider than the part bearing the contact pad 15.
  • the shorter leg 16 carrying the contact pad 15 rests under prestress on an insulating part projection 17.
  • the longer leg forming base 14 of the U-shaped fixed contact 4 is equipped with a locking knob 19, so that the fixed contact 4 in the inserted Position can lock.
  • the U-shaped arc guide plate 5 Before inserting the fixed contact 4, the U-shaped arc guide plate 5 is inserted in a corresponding recess 21 in the insulating part 3 in the direction of arrow 20, to the extent that opposite widenings 22 come to rest on webs 23 projecting laterally into the chambers.
  • One leg 24 of the arc guide plate 5 is provided with a bend 25, which comes into engagement with a groove 26 by moving the arc guide plate in the direction of arrow 13.
  • a thread passage 27 is provided in the arc guide plate, which serves to screw in the connecting screw 28.
  • the connecting screw 28 is passed through a hole 29 in the base part 14 of the fixed contact, after it is in the locked position. Due to the groove guide and the locking over the locking knobs 19 in the insulating part 3, the arc guide plate 5 and also the fixed contact piece 4 are already held in the position shown in FIG. 2 without the connecting screw 28 having to be screwed in.
  • the insulating part 3 can be inserted as a whole into the lower part 1. Partitions 30 on the cover part 2 engage in grooves 31 on the insulating part 3, so that there are partitioned switching chambers. In the cover part 2 there are insertion funnels 32 for inserting the connecting lines. Furthermore, the cover part 2 has openings 33 through which the connection screws 28 can be actuated.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Tumbler Switches (AREA)
  • Breakers (AREA)

Abstract

The invention relates to a contact arrangement for an electrical switch apparatus with at least one fixed contact, shaped like a U with limbs of unequal length, the longer limb, provided with a mounting hole, being used for the current connection and the shorter limb, on the side facing away from the longer limb, being used as the contact. An arc runner is provided adjacent to the contact point and is electrically connected to the contact. The longer limb is pushed from the side into slots in an insulating part which can be connected to the housing, the end part of the longer limb covering the limb of the U-shaped, bent arc runner which is inserted in a cut-out in the insulating part, transversely with respect to the direction in which the longer limb is pushed in. This limb of the arc runner carries the thread for the screw connection. This arrangement results in a simple mounting method for the fixed contact. It is advantageous for prefabrication if the insulating part carries the fixed contacts of all poles of the switch apparatus. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Schaltstückanordnung für ein elektrisches Schaltgerät mit mindestens einem, die Form eines ungleichschenkligen U aufweisenden, am Gehäuse befestigten Schaltstück, wobei der längere, mit einer Befestigungsbohrung versehene Schenkel dem Stromanschluß und der kürzere Schenkel an der dem längeren Schenkel abgewandten Seite der Kontaktgabe dient, und einem mit dem festen Schaltstück elektrisch leitend verbundenen, U-förmigen Lichtbogenleitblech, das zwei Schenkel aufweist, von denen dem einen ein Gewindeloch zugeordnet ist, wobei das Gewindeloch mit der Befestigungsbohrung fluchtet.The invention relates to a contact piece arrangement for an electrical switching device with at least one, having the shape of an unequal leg U, attached to the housing, the longer leg provided with a mounting hole the power connection and the shorter leg on the side facing away from the longer leg Contact is used, and a U-shaped arc baffle, which is electrically conductively connected to the fixed contact, and has two legs, one of which is assigned a threaded hole, the threaded hole being aligned with the fastening bore.

Bei einem bekannten Schaltgerät der obengenannten Art (DE-A 28 03 249, FR-A 2 378 344) sind zwei Befestigungsschrauben für das Schaltstück vorhanden, die eine Gehäusewandung und den einen Schenkel des Schaltstückes durchdringen und in Gewindedurchzüge des Lichtbogenleitbleches eingedreht sind, so daß das Lichtbogenleitblech das Schaltstück gegen die Gehäusewandung drückt. Die hier vorgesehene Befestigungsanordnung ist relativ aufwendig.In a known switching device of the type mentioned above (DE-A 28 03 249, FR-A 2 378 344) there are two fastening screws for the switching element which penetrate a housing wall and the one leg of the switching element and are screwed into threaded holes in the arc guide plate, so that the arc baffle presses the contact piece against the housing wall. The fastening arrangement provided here is relatively complex.

Bei einem weiterhin bekannten Schaltgerät (CH-PS 506 871) wird das feste Schaltstück zuerst mit einer Schraube am Schaltgerät befestigt. Danach wird das untere Eisenblech unter den kürzeren Schenkel des festen Schaltstückes eingeschoben und dann das obere Eisenblech aufgelegt. Beide Eisenbleche werden dann mit einer zusätzlichen Schraube am längeren Schenkel des Schaltstückes angeschraubt.In a switching device that is also known (CH-PS 506 871), the fixed switching piece is first attached to the switching device with a screw. Then the lower iron plate is inserted under the shorter leg of the fixed contact and then the upper iron plate is placed on it. Both iron sheets are then screwed to the longer leg of the contact piece with an additional screw.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, die bekannte Schaltstückanordnung hinsichtlich Material- und Montageaufwand zu vereinfachen. Dies wird auf einfache Weise dadurch erreicht, daß der längere Schenkel des Schaltstückes seitlich in Nuten in ein mit dem Gehäuse verbindbares Isolierteil einschiebbar ist, wobei das Endteil des längeren Schenkels den einen, in eine Ausnehmung des Isolierteiles quer zur Einschubrichtung des längeren Schenkels von der Seite des längeren Schenkels des Schaltstückes aus vor dem Einschieben eingelegten Schenkel des gebogenen Lichtbogenleitbleches überdeckt, daß das diesem Schenkel des Lichtbogenleitbleches zugeordnete Gewindeloch mit der Befestigungsbohrung fluchtet, für den Schraubanschluß ohne Haltefunktion dient, wobei die Ausnehmung derart ausgebildet und angeordnet ist, daß der eingelegte Schenkel durch die Überdeckung in der eingelegten Lage gehalten ist.The present invention has for its object to simplify the known contact piece arrangement in terms of material and assembly costs. This is achieved in a simple manner in that the longer leg of the contact piece can be inserted laterally into grooves in an insulating part which can be connected to the housing, the end part of the longer leg one side, into a recess in the insulating part transversely to the direction of insertion of the longer leg from the side of the longer leg of the contact piece from the leg of the bent arc guide plate inserted before the insertion covers that the threaded hole associated with this leg of the arc guide plate is aligned with the fastening bore, is used for the screw connection without a holding function, the recess being designed and arranged in such a way that the leg inserted by the overlap is held in the inserted position.

Auf zusätzliche Gewindeteile, insbesondere eine zusätzliche Einlegemutter, kann verzichtet werden, wenn das Gewinde aus einem Gewindedurchzug im einen Schenkel des Lichtbogenleitbleches besteht. Dies ist insbesondere deswegen möglich, da dem Schraubanschluß keine Halterungsfunktion im Gerät zukommt. Um einerseits eine genaue Zuordnung des freien Endes des Schaltstückes zum Lichtbogenleitblech zu gewährleisten und andererseits mit einem relativ dünnen Schaltstück arbeiten zu können ist es vorteilhaft, wenn der kürzere Schenkel des Schaltstückes an seinem freien Ende auf einen Isolierteilvorsprung aufgeschoben ist. Hierbei ist es von besonderem Vorteil, wenn das freie Ende unter Vorspannung auf dem Isolierteilvorsprung aufliegt, da hier auch bei Erwärmung des Schaltstückes die Zuordnung zum Lichtbogenleitblech erhalten bleibt. Um das Gerät auch mit offenen Anschlußschrauben liefern zu können, ist es weiterhin von Vorteil, wenn das feste Schaltstück im Isolierteil verrastet ist. Um auch für Schaltgeräte größerer Leistung eine unbedingt feste Verankerung des Schaltstückes zu gewährleisten ist es weiterhin von Vorteil, wenn der überdeckte Schenkel des Lichtbogenleitbleches mit einer Abbiegung in eine Nut des Isolierteiles eingeschoben ist. Zur maschinellen Fertigung des Schaltgerätes ist es von Vorteil, wenn das Isolierteil die festen Schaltstücke aller Pole des Schaltgerätes trägt, da das Isolierteil mit sämtlichen Schaltstücken vorgefertigt in das Schaltgerät eingelegt werden kann.Additional threaded parts, in particular an additional insert nut, can be dispensed with if the thread consists of a thread passage in one leg of the arc guide plate. This is possible in particular because the screw connection does not have a mounting function in the device. In order on the one hand to ensure an exact assignment of the free end of the contact piece to the arc guide plate and on the other hand to be able to work with a relatively thin contact piece, it is advantageous if the shorter leg of the contact piece is pushed onto an insulating part projection at its free end. It is particularly advantageous here if the free end rests on the insulating part projection under prestress, since the assignment to the arc guide plate is retained even when the contact piece is heated. In order to be able to deliver the device with open connection screws, it is also advantageous if the fixed contact is locked in the insulating part. In order to ensure that the contact piece is firmly anchored, even for switchgear of higher power, it is also advantageous if the covered leg of the arc guide plate is inserted with a bend into a groove in the insulating part. For the mechanical production of the switching device, it is advantageous if the insulating part carries the fixed switching elements of all poles of the switching device, since the insulating part can be inserted into the switching device in a prefabricated manner with all switching elements.

Anhand der Zeichnung wird ein Ausführungsbeispiel gemäß der Erfindung beschrieben.An exemplary embodiment according to the invention is described with reference to the drawing.

Es zeigen:

Fig. 1
eine Seitenansicht im Schnitt durch das Schaltgerät gemäß der Erfindung, im vorliegenden Fall einem Motorschutzschalter mit eingesetztem Isolierteil,
Fig. 2
das Isolierteil mit eingesetzten Schaltstücken in Seitenansicht und
Fig. 3
eine Unteransicht auf das Isolierteil mit eingesetzten Schaltstücken.
Show it:
Fig. 1
2 shows a side view in section through the switching device according to the invention, in the present case a motor protection switch with an inserted insulating part,
Fig. 2
the insulating part with inserted switching elements in side view and
Fig. 3
a bottom view of the insulating part with inserted switching pieces.

In dem aus Unterteil 1 und Deckteil 2 bestehenden Gehäuse des Motorschutzschalters ist ein Isolierteil 3 mit den festen Schaltstücken 4, dem Lichtbogenleitblech 5 angeordnet. Hieran anschließend liegt in dem Unterteil 1 die Löschblechanordnung 6. Das bewegliche Schaltstück 7 ist in einem Kontaktträger 8 gehalten und über eine Feder 9 gegen das feste Schaltstück 4 gepreßt. Das den Kontaktträger 8 betätigende Schaltschloß und die das Schaltschloß beeinflussenden Auslöser sind in der Zeichnung nicht dargestellt. Das Isolierteil 3 wird oberhalb der Löschblechanordnung 6 eingelegt und kann durch Aufbringen des Deckteils 2 formschlüssig im Gehäuse gehalten werden. In dem Isolierteil 3 sind drei Kammern 10, die jeweils ein festes Schaltstück 4 aufnehmen, vorhanden. In den Seitenwänden 11 dieser Kammern sind Nuten 12 eingebracht, in die die festen Schaltstücke 4 in Richtung des Pfeiles 13 eingeschoben werden können. Hierzu ist das Grundteil 14 des Schaltstückes gegenüber dem die Kontaktauflage 15 tragenden Teil breiter ausgeführt. Der die Kontaktauflage 15 tragende kürzere Schenkel 16 liegt unter Vorspannung auf einem Isolierteilvorsprung 17 auf. Zum besseren Aufbringen des freien Endes 18 des kürzeren Schenkels 16 auf den Isolierteilvorsprung 17 ist dieser mit einer schiefen Ebene ausgestattet. Der den längeren Schenkel bildende Grundteil 14 des U-förmigen festen Schaltstückes 4 ist mit einem Rastnoppen 19 ausgestattet, so daß das feste Schaltstück 4 in der eingeschobenen Stellung verrasten kann. Vor dem Einschieben des festen Schaltstückes 4 wird in Richtung des Pfeiles 20 das U-förmig gebogene Lichtbogenleitblech 5 in eine entsprechende Aussparung 21 im Isolierteil 3 eingelegt, und zwar soweit, bis gegenüberliegende Verbreiterungen 22 auf seitlich in die Kammern hineinragenden Stegen 23 zur Auflage kommen. Der eine Schenkel 24 des Lichtbogenleitbleches 5 ist mit einer Abbiegung 25 versehen, die durch Verschieben des Lichtbogenleitbleches in Richtung des Pfeiles 13 mit einer Nut 26 in Eingriff kommt. In der Zeichnung nicht ersichtliche Vorsprünge des Isolierteiles, die mit den Enden der Verbreiterungen 22 zusammenwirken, verhindern ein Zurückverschieben des Lichtbogenleitbleches nach dem Einlegen. In dem Lichtbogenleitblech ist ein Gewindedurchzug 27 vorhanden, der dem Eindrehen der Anschlußschraube 28 dient. Die Anschlußschraube 28 wird durch ein Loch 29 im Grundteil 14 des festen Schaltstückes, nachdem es in der verrasteten Stellung liegt, hindurchgeführt. Durch die Nutenführung und die Verrastung über den Rastnoppen 19 im Isolierteil 3 wird das Lichtbogenleitblech 5 und auch das feste Schaltstück 4 bereits in der aus der Fig. 2 ersichtlichen Lage gehalten, ohne daß die Anschlußschraube 28 eingedreht sein muß. Das Isolierteil 3 kann als Ganzes in das Unterteil 1 eingelegt werden. Trennwände 30 am Deckteil 2 greifen in Nuten 31 am Isolierteil 3 ein, so daß sich abgeschottete Schaltkammern ergeben. Im Deckteil 2 sind Einführungstrichter 32 zum Einführen der Anschlußleitungen vorhanden. Weiterhin hat das Deckteil 2 Öffnungen 33, durch die die Anschlußschrauben 28 betätigt werden können.In the housing of the motor circuit breaker consisting of the lower part 1 and the cover part 2, an insulating part 3 with the fixed contact pieces 4, the arc baffle 5, is arranged. The quenching plate arrangement 6 then lies in the lower part 1. The movable contact piece 7 is held in a contact carrier 8 and pressed against the fixed contact piece 4 via a spring 9. The switching mechanism actuating the contact carrier 8 and the triggers influencing the switching mechanism are not shown in the drawing. The insulating part 3 is inserted above the quenching plate arrangement 6 and can be held in a form-fitting manner in the housing by applying the cover part 2. There are three chambers 10 in the insulating part 3, each of which accommodates a fixed contact piece 4. In the side walls 11 of these chambers, grooves 12 are made, into which the fixed contact pieces 4 can be inserted in the direction of the arrow 13. For this purpose, the base part 14 of the contact piece is made wider than the part bearing the contact pad 15. The shorter leg 16 carrying the contact pad 15 rests under prestress on an insulating part projection 17. For better application of the free end 18 of the shorter leg 16 on the insulating part projection 17, this is equipped with an inclined plane. The longer leg forming base 14 of the U-shaped fixed contact 4 is equipped with a locking knob 19, so that the fixed contact 4 in the inserted Position can lock. Before inserting the fixed contact 4, the U-shaped arc guide plate 5 is inserted in a corresponding recess 21 in the insulating part 3 in the direction of arrow 20, to the extent that opposite widenings 22 come to rest on webs 23 projecting laterally into the chambers. One leg 24 of the arc guide plate 5 is provided with a bend 25, which comes into engagement with a groove 26 by moving the arc guide plate in the direction of arrow 13. In the drawing, not visible projections of the insulating part, which cooperate with the ends of the widenings 22, prevent the arc baffle from moving back after insertion. A thread passage 27 is provided in the arc guide plate, which serves to screw in the connecting screw 28. The connecting screw 28 is passed through a hole 29 in the base part 14 of the fixed contact, after it is in the locked position. Due to the groove guide and the locking over the locking knobs 19 in the insulating part 3, the arc guide plate 5 and also the fixed contact piece 4 are already held in the position shown in FIG. 2 without the connecting screw 28 having to be screwed in. The insulating part 3 can be inserted as a whole into the lower part 1. Partitions 30 on the cover part 2 engage in grooves 31 on the insulating part 3, so that there are partitioned switching chambers. In the cover part 2 there are insertion funnels 32 for inserting the connecting lines. Furthermore, the cover part 2 has openings 33 through which the connection screws 28 can be actuated.

Claims (7)

  1. A contact piece arrangement for an electric switching device with at least one contact piece (4), secured to the housing, having the form of an unequal sided U, wherein the longer flank (14), provided with a securing bore (29) serves to connect current and the shorter flank (16) on the side, facing away from the longer flank (14) serves to make contact, and with a U-shaped arc guide plate (5), connected in an electrically conductive manner to the fixed contact piece (4), which arc guide plate has two flanks, one of which has allocated to it the threaded hole (27), wherein the threaded hole (27) aligns with the securing bore (29),
    characterised in that the longer flank (14) of the contact piece (4) is able to be inserted laterally into grooves (12) in an insulating part (3) connectable to the housing, wherein the end part of the longer flank (14) overlaps the flank (24) of the bent arc guide plate (5), embedded into a recess (21) of the insulating part transverse to the slide-in direction of the longer flank (14) from the side of the longer flank (14) of the contact piece (4), in that the threaded hole allocated to this flank (24) of the arc guide plate, which hole aligns with the securing bore (29), serves the screw connection (28) without a holding function, wherein the recess (21) is formed and arranged such that the embedded flank (24) is held by the overlap in the embedded position.
  2. An arrangement according to claim 1, characterised in that the thread comprises a threaded passage (27) in a flank (24) of the arc guide plate (5).
  3. An arrangement according to claim 1 or 2, characterised in that the shorter flank (16) of the contact piece (4) on its free end (18) is slid onto an insulating part projection (17).
  4. An arrangement according to claim 3, characterised in that the free end (18) lies with prestressing on the insulating part projection (17).
  5. An arrangement according to one of the preceding claims, characterised in that the fixed contact piece (4) is locked in the insulating part (3).
  6. An arrangement according to one of the preceding claims, characterised in that the overlapped flank (24) of the arc guide plate (5) is inserted with a deflected part (25) into a groove (26) of the insulating part (3).
  7. An arrangement according to one of the preceding claims, characterised in that the insulating part (3) carries the fixed contact pieces (4) of all poles of the switching device.
EP87101055A 1986-02-07 1987-01-26 Contact arrangement for an electrical switch apparatus Expired - Lifetime EP0232787B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87101055T ATE68630T1 (en) 1986-02-07 1987-01-26 CONTACT ARRANGEMENT FOR AN ELECTRICAL SWITCHING DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3603944 1986-02-07
DE3603944 1986-02-07

Publications (2)

Publication Number Publication Date
EP0232787A1 EP0232787A1 (en) 1987-08-19
EP0232787B1 true EP0232787B1 (en) 1991-10-16

Family

ID=6293675

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101055A Expired - Lifetime EP0232787B1 (en) 1986-02-07 1987-01-26 Contact arrangement for an electrical switch apparatus

Country Status (5)

Country Link
EP (1) EP0232787B1 (en)
JP (1) JP2632154B2 (en)
AT (1) ATE68630T1 (en)
DE (1) DE3773691D1 (en)
IN (1) IN165692B (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4319700Y1 (en) * 1965-10-18 1968-08-17
CH506871A (en) * 1970-09-11 1971-04-30 Sprecher & Schuh Ag Contact arrangement for an electrical switching device, in particular for a contactor
FR2378344A1 (en) * 1977-01-25 1978-08-18 Telemecanique Electrique BLOWING PART
JPS5828934U (en) * 1981-08-20 1983-02-24 三菱電機株式会社 electromagnetic contactor
JPS58148824U (en) * 1982-03-31 1983-10-06 三菱電機株式会社 Arc extinguishing structure of electromagnetic contactor

Also Published As

Publication number Publication date
JPS62186424A (en) 1987-08-14
JP2632154B2 (en) 1997-07-23
DE3773691D1 (en) 1991-11-21
IN165692B (en) 1989-12-16
EP0232787A1 (en) 1987-08-19
ATE68630T1 (en) 1991-11-15

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