EP0386277B1 - Double circuit-breaking terminal - Google Patents

Double circuit-breaking terminal Download PDF

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Publication number
EP0386277B1
EP0386277B1 EP89103812A EP89103812A EP0386277B1 EP 0386277 B1 EP0386277 B1 EP 0386277B1 EP 89103812 A EP89103812 A EP 89103812A EP 89103812 A EP89103812 A EP 89103812A EP 0386277 B1 EP0386277 B1 EP 0386277B1
Authority
EP
European Patent Office
Prior art keywords
contact
breaking
double circuit
terminal according
conductor
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
EP89103812A
Other languages
German (de)
French (fr)
Other versions
EP0386277A1 (en
Inventor
Paul Stenz
Horst Conrad
Georg Hille
Gerhard Huiskamp
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.)
Weidmueller Interface GmbH and Co KG
Original Assignee
Weidmueller Interface GmbH and Co KG
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
Priority to ES89103812T priority Critical patent/ES2045218T3/en
Application filed by Weidmueller Interface GmbH and Co KG filed Critical Weidmueller Interface GmbH and Co KG
Priority to AT89103812T priority patent/ATE94311T1/en
Priority to DE89103812T priority patent/DE58905551D1/en
Priority to EP89103812A priority patent/EP0386277B1/en
Priority to US07/471,480 priority patent/US5041704A/en
Priority to JP2047373A priority patent/JPH0727745B2/en
Priority to CA002011382A priority patent/CA2011382A1/en
Publication of EP0386277A1 publication Critical patent/EP0386277A1/en
Application granted granted Critical
Publication of EP0386277B1 publication Critical patent/EP0386277B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22Bases, e.g. strip, block, panel
    • H01R9/24Terminal blocks
    • H01R9/26Clip-on terminal blocks for side-by-side rail- or strip-mounting
    • H01R9/2625Clip-on terminal blocks for side-by-side rail- or strip-mounting with built-in electrical component
    • H01R9/2633Clip-on terminal blocks for side-by-side rail- or strip-mounting with built-in electrical component with built-in switch
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/12Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/365Bridging contacts
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/28Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button with three operating positions

Definitions

  • the invention relates to a double terminal with two levels, in which the connections for the electrical conductors are each connected to conductor rail pieces, the mutually opposite inner ends of which are formed as contact areas and are located in a switchgear room in which a separating contact piece protruding from a clamping housing is movable between switching positions is held in the terminal housing, which carries a contact bridge per floor for opening and closing the current paths formed by the busbar pieces in the floors.
  • the isolating contact is a translationally movable back and forth, which protrudes from the terminal housing with a handle at the top.
  • the contact bridges are arranged on the slide in relation to the contact areas of the busbar pieces on the two floors so that in one switch position of the slide the busbar pieces on one floor are connected by the affected contact bridge and thus this current path is closed while the current path in the other Floor is then open, while in the other switching position of the slide with respect to the open position and the closed position of the current paths in the two floors is reversed.
  • a disadvantage of this configuration is that the switch position of the disconnector slide is checked difficult by inspection and is therefore unreliable.
  • the slide stands out due to its translational switching movement and due to the fact that only relatively short switching paths in such two switching positions in the two switching positions only slightly differently from the top of the terminal housing, although it should be borne in mind that very often in switchgear a large number of such double separation terminals side by side on mounting rails or the like are snapped on.
  • Another disadvantage is that the possibility of wiring the two floors is relatively low. In many cases, further switching options, that is to say an increased number of possible switching combinations, would be very desirable in terms of their function. The problem of checking by inspection would be exacerbated in the known slide, for example, by the presence of three different switching positions.
  • the present invention has for its object to provide a double disconnect terminal of the generic type, which enables a larger switching combination with a common isolating contact and thereby ensures even an increased number of switching positions of the isolating contact that these different switching positions can be easily recognized from the outside by inspection.
  • the isolating contact is a rocker arm which is rotatably mounted in the switch compartment on the terminal housing and can be pivoted between three switching positions, and in one of the two floors the contact areas of the two busbar ends are extended to form a further switching position.
  • the double disconnect terminal shown in the figures has a housing 1 made of electrically insulating plastic, in which busbar pieces 2 and 3 are inserted from an open side in a lower level.
  • the conductor rail pieces 2 and 3 are parts of the current path of the lower one Floor.
  • the conductor rail pieces 2 and 3 have angled contact tabs 4, against which the incoming electrical conductors and the outgoing electrical conductors can be clamped on the one hand by means of connections 5 likewise inserted into the terminal housing 1.
  • connections 5 likewise inserted into the terminal housing 1.
  • corresponding conventional screw connections 5 for connecting the electrical conductors to the contact lugs 4 are only shown in FIG. 1 on the right-hand side of the lower level and the upper level. On the left side, such connections are fitted on both floors.
  • the busbar pieces 2 and 3 of the lower floor form contact areas 6, which in the exemplary embodiment shown are formed by the rounded ends of these busbar pieces. These contact areas 6 of the conductor rail pieces 2 and 3 protrude into a switching space 7 formed in the central area of the terminal housing 1.
  • busbar pieces 8 and 9 are inserted in the upper level of the double disconnect terminal block, which in turn have angled contact lugs 10 at their outer ends for interacting with connections 5 for connecting the electrical conductors and which in turn have contact areas 11 and 12 at their mutually opposite inner ends which, however, have extensions 13 and 14 in the sense of forming a further switching position in the manner to be explained in more detail below.
  • These contact areas 11 and 12 of the conductor rail pieces 8 and 9 on the upper floor also protrude into the Control room 7.
  • the busbar sections 8 and 9 on the upper floor are part of the upper current path of the double disconnect terminal block.
  • a separating switching element which is designed as a rocker arm 15 which is pivotably mounted on a pin 16 formed on the closed side wall of the terminal housing 1 in the control room 7.
  • the rocker arm 15 has at its upper end a handle 17 protruding at the top from the terminal housing 1, in which a plug hole 18 is expediently provided, into which, for example, a screwdriver for actuating the rocker arm 15 in the sense of its transfer into the various possible switching positions (indicated in Figure 1) can be inserted.
  • the rocker arm 15 now has a contact bridge 19 or 20 for each floor.
  • the contact bridges 19, 20 have contact areas 21 at their outer ends, which correspond to the respective switching position of the rocker arm 15 with the contact areas 6 of the lower conductor rail pieces 2 and 7 projecting into the switching space 7 3 or 11 and 12 of the upper busbar pieces 8 and 9 interact or release in the sense of the closing and opening of the current paths in the two floors.
  • the rocker arm 15 has three different switching positions, each with a different circuit function for the current paths in the upper and lower floors.
  • a middle switching position of the lever 15 shown in FIG. 1 the contact bridges 19 and 20 are essentially parallel to the conductor rail pieces on the upper and lower floors.
  • the contact areas 21 of the lower contact bridge 20 contact the contact areas 6 of the busbar pieces 2 and 3 of the lower level.
  • the contact areas 21 of the upper contact bridge 19 make contact with a part of the contact area 11 or 12 of these contact pieces located in the extension of the conductor rail pieces 8 and 9 on the upper level.
  • both the upper and the lower current path are thus closed.
  • this further switching position is therefore, taking into account the pivoting movement of the upper contact bridges 19 together with the rocker arm 15, the extension 13 of the busbar 11 is directed downwards, while the extension 14 of the busbar piece 12 is directed upwards.
  • the lower current path is thus open, while the upper current path is closed.
  • the contact bridges 19 and 20 are fastened on fastening pins 22 on the rocker arm 15, which is made of an electrically insulating material.
  • the contact bridges 19, 20 are expediently formed in two layers, for example by folding a one-piece blank in its longitudinal direction, for example from a brass or bronze sheet, the contact regions 21 of the contact bridges 19 and 20 then being very much further
  • Expedient design are designed as spring contacts 23 which can accommodate the narrow flag-like contact areas 6 or 11 and 12 of the busbar pieces 2 and 3 or 8 and 9 in the closed switching position between them.
  • This configuration results in a very reliable frictional connection Contacting by a clearly defined and predetermined spring force, wherein this contact force determined by the spring force is also advantageously not transmitted or received via insulating material.
  • the upper contact bridge 19 and the lower contact bridge 20 are also arranged above or below the bearing point of the rocker arm 15 on the pin 16, two further expedient embodiments with different distances therefrom, the lower contact bridge 20 being less than the axis of rotation than the upper contact bridge 19.
  • the busbar pieces 2, 3 and 8 and 9 are expedient, as shown in the figures, arranged upright in the terminal housing 1. Correspondingly, flag-like contact areas 6 and 11, 12 result, so to speak, for interaction with the overlapping spring contacts 23 in the contact area 21 of the contact bridges 19 and 20. It is also necessary, in the sense of the usual mode of operation of isolating terminals, that the busbar pieces 2 and 3 and 8 and 9 all have their own connection option for a test plug. In this sense, the busbar pieces 8 and 9 of the upper floor have cross legs 24 pointing upwards, while the busbar pieces 2 and 3 of the lower floor have cross legs 25 pointing upward, which are in the crossing area with the top track pieces 8 and 9 are of course electrically stripped from these. The upper ends of the cross legs 24 and 25 are all angled and provided in this bend with a plug opening (not shown) in such a way that, as illustrated in FIG. 1, test plugs can be inserted for test purposes.
  • FIGS. 1, 2 and 3 show that the three different switching positions of the rocker arm 15 can be recognized well and reliably from the outside by inspection, due to the clearly different position of the handle 17, even if one imagines it that a plurality of such double disconnect terminals are arranged side by side in the context of a switchgear.
  • latches are assigned to the switching positions in a further expedient embodiment.
  • a locking pin 26 is formed on the clamp housing 1 on the swivel path of the lower end of the rocker arm 15, which engages with three recesses 27 provided in the lower edge region of the rocker arm in accordance with the three different swivel positions.
  • Another additional securing option is to provide a latching option also in the upper area of the terminal housing 1 and in the handling area of the rocker arm 15. You can do this, for example let the handle 17 protruding from the housing 1 overlap the upper edge region 28 of the terminal housing 1 a little in the area of the control room 7 and provide a locking pin 19 on the underside in this overlapping area of the handle 17.

Abstract

In this double circuit-breaking terminal, the circuit-breaking switching piece for opening and closing the current paths, formed by busbar pieces (2, 3, 8, 9), in the upper and lower terminal level is a rocker arm (15), which carries a contact link (19, 20) in each case for each level, and which can be pivoted into three different switch positions in one of the two levels, the mutually opposite contact regions (11, 12) of the relevant busbar pieces (8, 9) having extensions (13, 14), in the sense of forming a further switch position, of such a design that this current path is closed in the relevant switch position of the rocker arm (15), while the current path in the other level is opened. <IMAGE>

Description

Die Erfindung betrifft eine Doppelklemme mit zwei Etagen,in denen die Anschlüsse für die elektrischen Leiter jeweils mit Stromschienenstücken verbunden sind, deren einander gegenüberliegende innere Enden als Kontaktbereiche ausgebildet sind und in einem Schaltraum liegen, in dem ein oben aus einem Klemmgehaüse vorstehendes Trennschaltstück zwischen Schaltstellungen beweglich im Klemmengehäuse gehalten ist, das pro Etage eine Kontaktbrücke zum Öffnen und Schließen der von den Stromschienenstücken in den Etagen gebildeten Strompfade trägt.The invention relates to a double terminal with two levels, in which the connections for the electrical conductors are each connected to conductor rail pieces, the mutually opposite inner ends of which are formed as contact areas and are located in a switchgear room in which a separating contact piece protruding from a clamping housing is movable between switching positions is held in the terminal housing, which carries a contact bridge per floor for opening and closing the current paths formed by the busbar pieces in the floors.

Bei einer bekannten Doppeltrennklemme der gattungsgemäßen Art (FR-A-2 357 080) ist das Trennschaltstück ein translatorisch hin und her bewegbarer Schieber, der mit einer Handhabe oben aus dem Klemmengehäuse hervorsteht. Die Kontaktbrücken sind an dem Schieber im Verhältnis zu den Kontaktbereichen der Stromschienenstücke in den beiden Etagen so angeordnet, daß in der einen Schaltstellung des Schiebers die Stromschienenstücke der einen Etage durch die betroffene Kontaktbrücke verbunden und damit dieser Strompfad geschlossen ist, während der Strompfad in der anderen Etage dann offen ist, während es sich in der anderen Schaltstellung des Schiebers bezüglich der Offenstellung und der Schließstellung der Strompfade in den beiden Etagen umgekehrt verhält.In a known double disconnect terminal of the generic type (FR-A-2 357 080), the isolating contact is a translationally movable back and forth, which protrudes from the terminal housing with a handle at the top. The contact bridges are arranged on the slide in relation to the contact areas of the busbar pieces on the two floors so that in one switch position of the slide the busbar pieces on one floor are connected by the affected contact bridge and thus this current path is closed while the current path in the other Floor is then open, while in the other switching position of the slide with respect to the open position and the closed position of the current paths in the two floors is reversed.

Nachteilig ist bei dieser Ausgestaltung einerseits, daß die Prüfung der Schaltstellung des Trennschaltschiebers durch Inaugscheinnahme schwierig und von daher unzuverlässig ist. Der Schieber steht aufgrund seiner translatorischen Schaltbewegung und aufgrund der bei derartigen Doppeltrennklemmen von Haus aus nur relativ geringen Schaltwege in den beiden Schaltstellungen nur wenig unterschiedlich weit oben aus dem Klemmengehäuse hervor, wobei daran zu denken ist, daß sehr häufig in Schaltanlagen eine Vielzahl derartiger Doppeltrennklemmen nebeneinander auf Tragschienen o.dgl. aufgerastet sind. Nachteilig ist ferner, daß die Beschaltungsmöglichkeit der beiden Etagen relativ gering ist. Vielfach wären weitere Schaltungsmöglichkeiten, insgesamt also eine vergrößerte Anzahl möglicher Schaltkombinationen von der Funktion her sehr erwünscht. Das Problem der Überprüfung durch Inaugscheinnahme würde allerdings bei dem bekannten Schieber beispielsweise durch das Vorhandensein drei unterschiedlicher Schaltstellungen noch außerordentlich verschärft.A disadvantage of this configuration is that the switch position of the disconnector slide is checked difficult by inspection and is therefore unreliable. The slide stands out due to its translational switching movement and due to the fact that only relatively short switching paths in such two switching positions in the two switching positions only slightly differently from the top of the terminal housing, although it should be borne in mind that very often in switchgear a large number of such double separation terminals side by side on mounting rails or the like are snapped on. Another disadvantage is that the possibility of wiring the two floors is relatively low. In many cases, further switching options, that is to say an increased number of possible switching combinations, would be very desirable in terms of their function. The problem of checking by inspection would be exacerbated in the known slide, for example, by the presence of three different switching positions.

Bei den üblichen elektrischen Reihentrennklemmen mit nur einem Strompfad (DE-C- 1 115 804) ist es ferner bekannt, daß Trennschaltstück als drehbar im Klemmengehäuse gehaltenen Kipphebel auszubilden. Hier wird grundsätzlich nur eine Ein- und eine Ausschaltstellung benötigt, wobei der Kipphebel mit der Kontaktbrücke zwischen diesen beiden Schaltstellungen hin und her schwenkbar ist. Die beiden verschiedenen Schaltstellungen des Kipphebels sind durch Inaugscheinnahme gut sichtbar, da die notwendigerweise auch hier vorhandene und oben aus dem Reihenklemmengehäuse hervorstehende Handhabe den beiden Schaltstellungen in deutlich sichtbar unterschiedlicher Raumlage liegt. Das Problem der Verwirklichung einer größeren Anzahl möglicher Schaltkombinationen bei einer Doppeltrennklemme findet bei einer derartigen elektrischen Reihenklemme mit einem Strompfad weder eine Lösung noch eine Anregung dazu.In the usual electrical series disconnect terminal blocks with only one current path (DE-C-1 115 804), it is also known to design the isolating switch as a rocker arm held rotatably in the terminal housing. Basically only one switch-on and one switch-off position is required here, the rocker arm with the contact bridge being pivotable back and forth between these two switch positions. The two different switch positions of the rocker arm are clearly visible through inspection, since the handle that is necessarily present here and protrudes from the terminal block housing at the top is located in a clearly visible different position in the two switch positions. The problem of realizing a larger number of possible switching combinations with a double disconnect terminal is found in such an electrical terminal block with a current path is neither a solution nor a suggestion.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Doppeltrennklemme der gattungsgemäßen Art zu schaffen, die eine größere Schaltkombination mit dem einen gemeinsamen Trennschaltstück ermöglicht und dabei auch selbst einer vergrößerten Anzahl von Schaltstellungen des Trennschaltstückes eine gute Erkennbarkeit dieser verschiedenen Schaltstellungen von außen durch Inaugscheinnahme gewährleistet.The present invention has for its object to provide a double disconnect terminal of the generic type, which enables a larger switching combination with a common isolating contact and thereby ensures even an increased number of switching positions of the isolating contact that these different switching positions can be easily recognized from the outside by inspection.

Die erfindungsgemäße Lösung besteht darin, daß das Trennschaltstück ein in dem Schaltraum drehbar am Klemmengehäuse gelagerter und zwischen drei Schaltstellungen verschwenkbarer Kipphebel ist und in einer der beiden Etagen die Kontaktbereiche der beiden Stromschienenenden zur Bildung einer weiteren Schaltstellung verlängert sind.The solution according to the invention is that the isolating contact is a rocker arm which is rotatably mounted in the switch compartment on the terminal housing and can be pivoted between three switching positions, and in one of the two floors the contact areas of the two busbar ends are extended to form a further switching position.

Es ergibt sich eine gegenüber in dem bisherigen deutlich vergrößerte Beschaltungsmöglichkeit der beiden Etagen der Doppeltrennklemme.In einer Schaltstellung entsprechend einer ersten Kipplade des Kipphebels können beispielsweise die von den Kipphebel getragenen Kontaktbrücken in beiden Etagen die Strompfade schließen, indem beide Kontaktbrücken die entsprechenden Kontaktbereiche der betroffenen Stromschienenstücke in den beiden Etagen kontaktieren. In einer weiteren, nachfolgenden Zeitstellung entsprechend einer weiteren Verschwenklage des Kipphebels ist es dank der erfindungsgemäßen Ausgestaltung möglich, in der betroffenen Etage den verlängerten Kontaktbereich der beiden Stromschienenenden noch mit der betroffenen Kontaktbrücke am Kipphebel zu kontaktieren, so daß der Strompfad in dieser Etage geschlossen ist, während in der anderen Etage die Kontaktbrücke bereits außer Kontakt mit den Kontaktbereichen der Stromschienenstücke geraten ist, hier also der Strompfad unterbrochen ist. In der dritten Schaltstellung entsprechend einer weiteren Verschwenklage des Kipphebels ist dann auch die Kontaktbrücke in der Etage mit den verlängerten Kontaktbereichen der beiden Stromschienenenden außer Kontakt mit den verlängerten Kontaktbereichen geraten, so daß in dieser Schaltstellung die Strompfade in beiden Etagen unterbrochen sind.This results in a significantly enlarged wiring option for the two levels of the double disconnect terminal block compared to the previous one. In a switch position corresponding to a first rocker arm of the rocker arm, the contact bridges carried by the rocker arms can close the current paths on both floors, in that both contact bridges close the corresponding contact areas of the affected busbar pieces contact on the two floors. In a further, subsequent time position corresponding to a further pivoting position of the rocker arm, it is possible thanks to the configuration according to the invention to extend the extended contact area of the two busbar ends with the affected contact bridge on the rocker arm in the affected floor to contact, so that the current path is closed on this floor, while on the other floor the contact bridge has already come out of contact with the contact areas of the conductor rail pieces, so the current path is interrupted here. In the third switching position, corresponding to a further pivoting position of the rocker arm, the contact bridge on the floor with the extended contact areas of the two busbar ends is then out of contact with the extended contact areas, so that in this switching position the current paths on both floors are interrupted.

Bei der Drehlagerung des Kipphebels im Klemmengehäuse ergibt sich trotz der relativ geringen Größenordnung derartiger Doppeltrennklemmen doch immerhin für die aus dem Klemmengehäuse vorstehende Handhabe des Kipphebels ein relativ großer Schwenkwinkel gesehen über die drei Schaltstellungen, so daß die drei unterschiedlichen Schaltstellungen von außen durch Inaugscheinnahme deutlich und zuverlässig erkennbar sind, und zwar ohne weiteres auch dann, wenn zahlreiche derartige Doppeltrennklemmen aneinander gereiht sind.When the rocker arm is pivoted in the terminal housing, despite the relatively small size of such double disconnect terminals, there is a relatively large swivel angle for the handle of the rocker arm protruding from the terminal housing, seen over the three switch positions, so that the three different switch positions can be seen clearly and reliably from the outside can be seen, even if many such double disconnect terminals are lined up.

Weitere bevorzugte Ausgestaltungen einer Doppeltrennklemme gemäß der Erfindung sind in den Unteransprüchen gekennzeichnet. Hervorzuheben ist hier die Schaffung deutlich anwählbarer und gesicherter Raststellungen entsprechend den drei Schaltstellungen durch das Vorsehen entsprechender Rasten und Gegenrasten, die Anordnung der Kontaktbrücken in spezieller Raumlage zu dem Drehpunkt des Kipphebels zur Erzielung einer besonders niedrigen Bauhöhe, die spezielle Ausgestaltung der Stromschienenstücke im Sinne einer sicheren Kontaktierung mit den Kontaktbrücken, dies auch in Verbindung mit der Schaffung einer Anschlußmöglichkeit für Prüfstecker an diesen Stromschienenstücken.Further preferred embodiments of a double disconnect terminal according to the invention are characterized in the subclaims. It is important to emphasize the creation of clearly selectable and secured locking positions corresponding to the three switching positions by the provision of corresponding detents and counter detents, the arrangement of the contact bridges in a special spatial position to the pivot point of the rocker arm to achieve a particularly low overall height, the special design of the track parts in the sense of a safe contact with the contact bridges, this also in connection with the creation of a connection possibility for test plugs on these conductor rail pieces.

Ein Ausführungsbeispiel einer Doppeltrennklemme gemäß der Erfindung wird nachstehend unter Bezugnahme auf die beigefügte Zeichnung näher beschrieben.An embodiment of a double disconnect terminal according to the invention is described below with reference to the accompanying drawings.

Es zeigen:

Fig. 1
eine seitlich offene Doppeltrennklemme gemäß der Erfindung in Seitenansicht bei einer mittleren Schaltstellung des Trennschaltstückes,
Fig. 2
eine Seitenansicht vergleichbar Fig. 1 in einer Schaltstellung des Trennschaltstückes entsprechend der Öffnung der Strompfade in beiden Etagen,
Fig. 3
eine Seitenansicht vergleichbar Fig. 1 mit einer Schaltstellung des Trennschaltstückes entsprechend der Öffnung des Strompfades in der einen und der Schließung des Strompfades in der anderen Etage,
Fig. 4
eine Teilquerschnittsdarstellung des Schaltraumes der Doppeltrennklemme nach Figur 1 mit Draufsicht auf eine Kontaktbrücke des Trennschaltstückes.
Show it:
Fig. 1
a laterally open double disconnect terminal according to the invention in side view with a middle switching position of the isolating contact,
Fig. 2
1 in a switching position of the isolating contact according to the opening of the current paths in both floors,
Fig. 3
1 with a switching position of the isolating switch corresponding to the opening of the current path in one and the closing of the current path in the other floor,
Fig. 4
a partial cross-sectional view of the switching room of the double disconnect terminal according to Figure 1 with a plan view of a contact bridge of the disconnector.

Die in den Figuren dargestellte Doppeltrennklemme hat ein Gehäuse 1 aus elektrisch isolierendem Kunststoff, in das von einer offenen Seite her in einer unteren Etage Stromschienenstücke 2 und 3 eingelegt sind. Die Stromschienenstücke 2 und 3 sind Teile des Strompfades der unteren Etage. An ihren außenliegenden Enden haben die Stromschienenstücke 2 und 3 abgewinkelte Kontaktfahnen 4, gegen die mittels ebenfalls in das Klemmengehäuse 1 eingelegter Anschlüsse 5 auf der einen Seite die ankommenden elektrischen Leiter und auf der anderen Seite die abgehenden elektrischen Leiter angeklemmt werden können. Aus Gründen der Vereinfachung sind lediglich in Figur 1 auf der rechten Seite der unteren Etage und der oberen Etage entsprechende übliche Schraubanschlüsse 5 zum Anklemmen der elektrischen Leiter an die Kontaktfahnen 4 dargestellt. Auf der linken Seite erfolgt in beiden Etagen eine entsprechende Bestückung mit derartigen Anschlüssen.The double disconnect terminal shown in the figures has a housing 1 made of electrically insulating plastic, in which busbar pieces 2 and 3 are inserted from an open side in a lower level. The conductor rail pieces 2 and 3 are parts of the current path of the lower one Floor. At their outer ends, the conductor rail pieces 2 and 3 have angled contact tabs 4, against which the incoming electrical conductors and the outgoing electrical conductors can be clamped on the one hand by means of connections 5 likewise inserted into the terminal housing 1. For the sake of simplification, corresponding conventional screw connections 5 for connecting the electrical conductors to the contact lugs 4 are only shown in FIG. 1 on the right-hand side of the lower level and the upper level. On the left side, such connections are fitted on both floors.

An ihren einander gegenüberliegenden inneren Enden bilden die Stromschienenstücke 2 und 3 der unteren Etage Kontaktbereiche 6, die im dargestellten Ausführungsbeispiel durch die abgerundeten Enden dieser Stromschienenstücke gebildet werden. Diese Kontaktbereiche 6 der Stromschienenstücke 2 und 3 ragen in einen im mittleren Bereich des Klemmengehäuses 1 gebildeten Schaltraum 7.At their mutually opposite inner ends, the busbar pieces 2 and 3 of the lower floor form contact areas 6, which in the exemplary embodiment shown are formed by the rounded ends of these busbar pieces. These contact areas 6 of the conductor rail pieces 2 and 3 protrude into a switching space 7 formed in the central area of the terminal housing 1.

In der oberen Etage der Doppeltrennklemme sind in vergleichbarer Weise Stromschienenstücke 8 und 9 eingelegt, die an ihren äußeren Enden wiederum abgewinkelte Kontaktfahnen 10 zum Zusammenwirken mit Anschlüssen 5 zum Anschließen der elektrischen Leiter haben und die wiederum an ihren einander gegenüberliegenden inneren Enden Kontaktbereiche 11 und 12 aufweisen, die aber im Sinne der Bildung einer weiteren Schaltstellung in der noch näher zu erläuternden Weise Verlängerungen 13 bzw. 14 aufweisen. Auch diese Kontaktbereiche 11 und 12 der Stromschienenstücke 8 und 9 in der oberen Etage ragen in den Schaltraum 7. Die Stromschienenstücke 8 und 9 in der oberen Etage sind Teile des oberen Strompfades der Doppeltrennklemme.In a comparable manner, busbar pieces 8 and 9 are inserted in the upper level of the double disconnect terminal block, which in turn have angled contact lugs 10 at their outer ends for interacting with connections 5 for connecting the electrical conductors and which in turn have contact areas 11 and 12 at their mutually opposite inner ends which, however, have extensions 13 and 14 in the sense of forming a further switching position in the manner to be explained in more detail below. These contact areas 11 and 12 of the conductor rail pieces 8 and 9 on the upper floor also protrude into the Control room 7. The busbar sections 8 and 9 on the upper floor are part of the upper current path of the double disconnect terminal block.

In dem Schaltraum 7 des Klemmengehäuses 1 ist nun ein Trennschaltstück angeordnet, das als Kipphebel 15 ausgebildet ist, der auf einem an der geschlossenen Seitenwand des Klemmengehäuses 1 im Schaltraum 7 angeformten Zapfen 16 verschwenkbar gelagert ist. Der Kipphebel 15 weist an seinem oberen Ende eine oben aus dem Klemmengehäuses 1 vorstehende Handhabe 17 auf, in der zweckmäßig eine von oben zugängliche Steckbohrung 18 vorgesehen ist, in die beispielsweise zur Betätigung des Kipphebel 15 im Sinne seiner Überführung in die verschiedenen möglichen Schaltstellungen ein Schraubendreher (in Figur 1 angedeutet) eingesteckt werden kann.In the control room 7 of the terminal housing 1 there is now a separating switching element which is designed as a rocker arm 15 which is pivotably mounted on a pin 16 formed on the closed side wall of the terminal housing 1 in the control room 7. The rocker arm 15 has at its upper end a handle 17 protruding at the top from the terminal housing 1, in which a plug hole 18 is expediently provided, into which, for example, a screwdriver for actuating the rocker arm 15 in the sense of its transfer into the various possible switching positions (indicated in Figure 1) can be inserted.

Der Kipphebel 15 besitzt nun für jede Etage eine Kontaktbrücke 19 bzw. 20. Die Kontaktbrücken 19,20 haben an ihren außenliegenden Enden Kontaktbereiche 21, die entsprechend der jeweiligen Schaltstellung des Kipphebels 15 mit den in den Schaltraum 7 hineinragenden Kontaktbereichen 6 der unteren Stromschienenstücke 2 und 3 bzw. 11 und 12 der oberen Stromschienenstücke 8 und 9 kontaktierend oder freigebend im Sinne der Schließung und Öffnung der Strompfade in den beiden Etagen zusammenwirken.The rocker arm 15 now has a contact bridge 19 or 20 for each floor. The contact bridges 19, 20 have contact areas 21 at their outer ends, which correspond to the respective switching position of the rocker arm 15 with the contact areas 6 of the lower conductor rail pieces 2 and 7 projecting into the switching space 7 3 or 11 and 12 of the upper busbar pieces 8 and 9 interact or release in the sense of the closing and opening of the current paths in the two floors.

Dem grundsätzlichen Funktionsprinzip nach hat der Kipphebel 15 drei verschiedene Schaltstellungen mit jeweils unterschiedlicher Beschaltungsfunktion der Strompfade in der oberen und unteren Etage. In einer in Figur 1 dargestellten mittleren Schaltstellung des Hebels 15 liegen die bei den Kontaktbrücken 19 und 20 im wesentlichen prallel zu den Stromschienenstücken in der oberen und unteren Etage. Die Kontaktbereiche 21 der unteren Kontaktbrücke 20 kontaktieren die Kontaktbereiche 6 der Stromschienenstücke 2 und 3 der unteren Etage. Die Kontaktbereiche 21 der oberen Kontaktbrücke 19 kontaktieren einen in der Verlängerung der Stromschienenstücke 8 und 9 der oberen Etage liegenden Teil des Kontaktbereiches 11 bzw. 12 dieser Stromschienenstücke. In dieser Schaltstellung des Kipphebels 15 sind somit sowohl der obere wie der untere Strompfad geschlossen.According to the basic functional principle, the rocker arm 15 has three different switching positions, each with a different circuit function for the current paths in the upper and lower floors. In a middle switching position of the lever 15 shown in FIG. 1 the contact bridges 19 and 20 are essentially parallel to the conductor rail pieces on the upper and lower floors. The contact areas 21 of the lower contact bridge 20 contact the contact areas 6 of the busbar pieces 2 and 3 of the lower level. The contact areas 21 of the upper contact bridge 19 make contact with a part of the contact area 11 or 12 of these contact pieces located in the extension of the conductor rail pieces 8 and 9 on the upper level. In this switching position of the rocker arm 15, both the upper and the lower current path are thus closed.

In der in Figur 2 dargestellten Schaltstellung des Kipphebels 15, in der der Handhabungsbereich des Kipphebels, gesehen auf Figur 2, nach rechts geschwenkt ist, haben sämtliche Kontaktbereiche 21 beider Kontaktbrücken 19 und 20 sämtliche Kontaktbereiche 6 bzw. 11 und 12 der unteren Stromschienenstücke 2 und 3 und der oberen Stromschienenstücke 8 und 9 verlassen. In dieser Schaltstellung sind somit die Strompfade in der oberen und unteren Etage beide unterbrochen und damit geöffnet.In the switching position of the rocker arm 15 shown in FIG. 2, in which the handling area of the rocker arm, as seen in FIG. 2, is pivoted to the right, all the contact areas 21 of both contact bridges 19 and 20 have all the contact areas 6 and 11 and 12 of the lower conductor rail pieces 2 and 3 and the upper track parts 8 and 9 leave. In this switch position, the current paths in the upper and lower floors are both interrupted and thus open.

In der in Figur 3 dargestellten Schaltstellung des Kipphebels 15,bei der der Handhabungsbereich des Kipphebels 15 gesehen auf Figur 3 nach links verschwenkt liegt, sind die Kontaktbereiche 21 der unteren Kontaktbrücke 20 aus den Kontaktbereichen 6 der unteren Stromschienenstücke 2 und 3 herausgeschwenkt. Der untere Strompfad ist damit geöffnet. In der oberen Etage aber kontaktieren die Kontaktbereiche 21 der oberen Kontakte 19 immer noch die Kontaktbereiche 11 und 12 der oberen Stromschienenstücke 8 und 9 und zwar im Bereich, der von den Verlängerungen 13 und 14 gebildet wird.In the switching position of the rocker arm 15 shown in FIG. 3, in which the handling area of the rocker arm 15 is pivoted to the left, as seen in FIG. 3, the contact areas 21 of the lower contact bridge 20 are pivoted out of the contact areas 6 of the lower conductor rail pieces 2 and 3. The lower current path is now open. On the upper floor, however, the contact areas 21 of the upper contacts 19 still contact the contact areas 11 and 12 of the upper conductor rail pieces 8 and 9, specifically in the area formed by the extensions 13 and 14.

Der Definierung dieser weiteren Schaltstellung ist von daher unter Berücksichtigung der Schwenkbewegung der oberen Kontaktbrücken 19 zusammen mit dem Kipphebel 15 die Verlängerung 13 der Stromschiene 11 nach unten gerichtet, während die Verlängerung 14 des Stromschienenstückes 12 nach oben gerichtet ist. In dieser Schaltstellung des Kipphebels 15 ist somit der untere Strompfad geöffnet, während der obere Strompfad geschlossen ist.The definition of this further switching position is therefore, taking into account the pivoting movement of the upper contact bridges 19 together with the rocker arm 15, the extension 13 of the busbar 11 is directed downwards, while the extension 14 of the busbar piece 12 is directed upwards. In this switching position of the rocker arm 15, the lower current path is thus open, while the upper current path is closed.

Es versteht sich, daß man die Verlängerung der Kontaktbereiche der Stromschienenstücke anstatt in der oberen auch in der unteren Etage durchführen könnte. In einem solchen Fall wäre dann in einer vergleichbaren Schaltstellung des Kipphebels bei geöffnetem oberen Strompfad der untere Strompfad noch geschlossen.It goes without saying that one could carry out the extension of the contact areas of the conductor rail pieces instead of in the upper level on the lower level. In such a case, the lower current path would still be closed in a comparable switching position of the rocker arm with the upper current path open.

In zweckmäßiger baulicher Ausgestaltung sind die Kontaktbrücken 19 und 20 auf Befestigungszapfen 22 auf dem aus einem elektrisch isolierenden Material bestehenden Kipphebel 15 befestigt. Dabei sind, wie insbesondere aus Figur 4 ersichtlich, die Kontaktbrücken 19,20 zweckmäßig doppellagig ausgebildet, beispielsweise durch Faltung eines einstückigen Zuschnittes in seiner Längsrichtung, beispielsweise aus einem Messing- oder Bronzeblech, wobei die Kontaktbereiche 21 der Kontaktbrücken 19 und 20 dann in weiterer sehr zweckmäßiger Ausgestaltung als Federkontakte 23 ausgebildet sind, die die schmalen fahnenartigen Kontaktbereiche 6 bzw. 11 und 12 der Stromschienenstücke 2 und 3 bzw. 8 und 9 in der Schließschaltstellung federnd zwischen sich aufnehmen können. Diese Ausgestaltung bewirkt eine sehr zuverlässige kraftschlüssige Kontaktierung durch eine eindeutig definierte und vorgegebene Federkraft, wobei diese durch die Federkraft bestimmte Kontaktkraft in vorteilhafter Weise auch nicht über Isolierstoffmaterial übertragen bzw. aufgenommen wird.In an expedient structural configuration, the contact bridges 19 and 20 are fastened on fastening pins 22 on the rocker arm 15, which is made of an electrically insulating material. 4, the contact bridges 19, 20 are expediently formed in two layers, for example by folding a one-piece blank in its longitudinal direction, for example from a brass or bronze sheet, the contact regions 21 of the contact bridges 19 and 20 then being very much further Expedient design are designed as spring contacts 23 which can accommodate the narrow flag-like contact areas 6 or 11 and 12 of the busbar pieces 2 and 3 or 8 and 9 in the closed switching position between them. This configuration results in a very reliable frictional connection Contacting by a clearly defined and predetermined spring force, wherein this contact force determined by the spring force is also advantageously not transmitted or received via insulating material.

In weiterer zweckmäßiger Ausgestaltung sind ferner die obere Kontaktbrücke 19 und die untere Kontaktbrücke 20 oberhalb bzw. unterhalb der Lagerstelle des Kipphebels 15 auf dem Zapfen 16 angeordnet zwei weiterer zweckmäßiger Ausgestaltung mit unterschiedlichem Abstand dazu, wobei die untere Kontaktbrücke 20 einen geringeren Abstand zur Drehachse hat als die obere Kontaktbrücke 19. Dies führt unter Berücksichtigung der gewünschten und erforderlichen Schwenkwege im Sinne der Öffnung und Schließung der Strompfade zu einer raumsparenden, relativ niedrigen Bauhöhe.In a further expedient embodiment, the upper contact bridge 19 and the lower contact bridge 20 are also arranged above or below the bearing point of the rocker arm 15 on the pin 16, two further expedient embodiments with different distances therefrom, the lower contact bridge 20 being less than the axis of rotation than the upper contact bridge 19. This leads to a space-saving, relatively low overall height, taking into account the desired and required swivel paths in the sense of opening and closing the current paths.

Die Stromschienenstücke 2, 3 und 8 und 9 sind zweckmäßig, wie aus den Figuren ersichtlich, hochkant im Klemmengehäuse 1 angeordnet. Es ergeben sich von daher quasi automatisch entsprechende fahnenartige Kontaktbereiche 6 bzw. 11, 12 zum Zusammenwirken mit den übergreifenden Federkontakten 23 im Kontaktbereich 21 der Kontaktbrücken 19 und 20. Es ist ferner im Sinne der üblichen Betriebsweise von Trennklemmen erforderlich, daß die Stromschienenstücke 2 und 3 und 8 und 9 alle eine eigene Anschlußmöglichkeit für einen Prüfstecker haben.In diesem Sinn haben die Stromschienenstücke 8 und 9 der oberen Etage nach oben weisende Querschenkel 24, während die Stromschienenstücke 2 und 3 der unteren Etage nach oben weisende Querschenkel 25 haben, die im Kreuzungsbereich mit den oberen Stromschienenstücken 8 und 9 naturgemäß diesen gegenüber elektrisch abisoliert sind. Die oberen Enden der Querschenkel 24 und 25 sind alle abgewinkelt und in dieser Abwinklung mit einer Stecköffnung (nicht dargestellt) versehen der Gestalt, daß hier, wie in Figur 1 illustriert, Prüfstecker zu Prüfzwecken eingesteckt werden können.The busbar pieces 2, 3 and 8 and 9 are expedient, as shown in the figures, arranged upright in the terminal housing 1. Correspondingly, flag-like contact areas 6 and 11, 12 result, so to speak, for interaction with the overlapping spring contacts 23 in the contact area 21 of the contact bridges 19 and 20. It is also necessary, in the sense of the usual mode of operation of isolating terminals, that the busbar pieces 2 and 3 and 8 and 9 all have their own connection option for a test plug. In this sense, the busbar pieces 8 and 9 of the upper floor have cross legs 24 pointing upwards, while the busbar pieces 2 and 3 of the lower floor have cross legs 25 pointing upward, which are in the crossing area with the top track pieces 8 and 9 are of course electrically stripped from these. The upper ends of the cross legs 24 and 25 are all angled and provided in this bend with a plug opening (not shown) in such a way that, as illustrated in FIG. 1, test plugs can be inserted for test purposes.

Die vergleichende Anschauung der Figuren 1,2 und 3 zeigt, daß die drei unterschiedlichen Schaltstellungen des Kipphebels 15 durch die damit verbundene deutlich unterschiedliche Lage der Handhabe 17 von außen durch Inaugscheinnahme gut und zuverlässig zu erkennen sind, und zwar auch dann, wenn man sich vorstellt, daß eine Vielzahl derartiger Doppeltrennklemmen nebeneinander im Rahmen einer Schaltanlage angeordnet sind. Um diese drei unterschiedlichen Schaltstellungen nun auch gut und fühlbar anwählen zu können und um dem Kipphebel 15 in der jeweiligen Schaltstellung auch eine gewisse Sicherheit gegen ein unbeabsichtigtes Verschwenken aus der gewählten Schaltstellung heraus zu geben, sind in weiterer zweckmäßiger Ausgestaltung den Schaltstellungen Verrastungen zugeordnet. Im dargestellten Ausführungsbeispiel ist hierzu an das Klemmengehäuse 1 an der Schwenkbahn des unteren Endes des Kipphebels 15 ein Rastzapfen 26 angeformt, der mit drei im unteren Randbereich des Kipphebels entsprechend den drei verschiedenen Schwenkstellungen vorgesehenen Rastausnehmungen 27 zusammenwirkt.The comparative view of FIGS. 1, 2 and 3 shows that the three different switching positions of the rocker arm 15 can be recognized well and reliably from the outside by inspection, due to the clearly different position of the handle 17, even if one imagines it that a plurality of such double disconnect terminals are arranged side by side in the context of a switchgear. In order to be able to select these three different switching positions well and noticeably and to give the rocker arm 15 a certain security against unintentional pivoting out of the selected switching position in the respective switching position, latches are assigned to the switching positions in a further expedient embodiment. In the illustrated embodiment, a locking pin 26 is formed on the clamp housing 1 on the swivel path of the lower end of the rocker arm 15, which engages with three recesses 27 provided in the lower edge region of the rocker arm in accordance with the three different swivel positions.

Eine weitere zusätzliche Sicherungsmöglichkeit besteht darin, eine Verrastungsmöglichkeit auch im oberen Bereich des Klemmengehäuses 1 und des Handhabungsbereiches des Kipphebels 15 vorzusehen. Hierzu kann man beispielsweise die aus dem Gehäuse 1 vorstehende Handhabe 17 den oberen Randbereich 28 des Klemmengehäuses 1 im Bereich des Schaltraumes 7 ein wenig übergreifen lassen und in diesem übergreifenden Bereich der Handhabe 17 unterseitig einen Rastzapfen 19 vorsehen. Der entsprechend der Schwenkbewegung der Handhabe 17 bogenförmig ausgebildete Randbereich 28 des Gehäuses 1 weist dann drei Rastausnehmungen 30 auf, die in den entsprechenden Schaltstellungen des Kipphebels 15 mit dem Rastzapfen 29 der Handhabe 17 zusammenwirken.Another additional securing option is to provide a latching option also in the upper area of the terminal housing 1 and in the handling area of the rocker arm 15. You can do this, for example let the handle 17 protruding from the housing 1 overlap the upper edge region 28 of the terminal housing 1 a little in the area of the control room 7 and provide a locking pin 19 on the underside in this overlapping area of the handle 17. The edge region 28 of the housing 1, which is arc-shaped in accordance with the pivoting movement of the handle 17, then has three latching recesses 30 which cooperate with the latching pin 29 of the handle 17 in the corresponding switching positions of the rocker arm 15.

Claims (11)

  1. A double circuit-breaking terminal with two stages in which the connections (5) for the electrical conductors are respectively connected to conductor-rail portions (2, 3; 8, 9) of which the mutually opposite inner ends are constructed as contact zones (6; 11, 12) and are situated in a switching space (7) in which, projecting from the top of the terminal housing (1), a circuit-breaking switch part (15) is supported in the terminal housing for movement between switched positions, the terminal housing having per stage a contact bridge (19; 20) for making and breaking the current paths formed in the stages by the conductor-rail portions (2, 3; 8, 9), characterized in that the circuit-breaking switch part is a rocker (15) mounted on the terminal housing (1) in the switching space (7) and adapted to pivot between three switched positions and in that in one of the two stages the contact areas (11, 12) of the two conductor-rail ends (8, 9) are lengthened to form a further switched position (13, 14).
  2. A double circuit-breaking terminal according to claim 1, characterised in that the rocker (15) comprises a handle (17) in which an open-topped push-in bore (18) is formed.
  3. A double circuit-breaking terminal according to claim 1 or 2, characterised in that the contact bridges (19, 20) fixed on the rocker (15) have contact areas (21) constructed as double spring contacts (23) co-operating with the contact areas (6; 11, 12) on the conductor-rail portions (2, 3; 8, 9),
  4. A double circuit-breaking terminal according to claim 3, characterised in that the contact bridges (19, 20) are made from one-piece blanks consisting of an electrically readily conductive metal plate and which are folded over onto each other in their longitudinal direction.
  5. A double circuit-breaking terminal according to one or more of the preceding claims, characterised in that the contact bridge (19) for the current path of the upper stage and the contact bridge (20) for the current path of the lower stage are fixed on both sides of the pivot spindle (16) of the rocker (15), the lower contact bridge (20) being less remote from the axis of rotation (6) than the upper contact bridge (19).
  6. A double circuit-breaking terminal according to one or more of the preceding claims, characterised in that the conductor rail portions (2, 3; 8, 9) are disposed upright in the terminal housing (1), their contact areas (6; 11, 12) projecting into the switching space (7) in the form of narrow upright contact tabs.
  7. A double circuit-breaking terminal according to one or more of the preceding claims, characterised in that all conductor rail portions (2, 3; 8, 9) have upwardly directed transverse arms (24, 25) the upper ends of which are constructed as a test plug connection.
  8. A double circuit-breaking terminal according to one or more of the preceding claims, characterised in that the contact areas (11, 12) of the conductor-rail portions (8, 9) disposed in the upper stage carry the extensions (13, 14), the extension (13) of one conductor-rail portion (8) pointing downwardly while the extension (14) of the other conductor-rail portion (9) points upwardly.
  9. A double circuit-breaking terminal according to one or more of the preceding claims, characterised in that a click-stop arrangement (26, 27) is provided for the three different switched positions of the rocker (15).
  10. A double circuit-breaking terminal according to claim 9, characterised in that the path of the lower marginal area of the rocker (15) there is integrally formed on the housing (1), in the switching space (7), a click-stop rod (26) for which three different catch recesses (27) are formed in the bottom edge of the rocker (15).
  11. A double circuit-breaking terminal according to claim 9 or 10, characterised in that the handle (17) of the rocker (15) engages over the adjacent upper edge (28) of the housing (1) in the region of the switching space (7) and in that there is integrally formed on the under side of the over-engaging portion a click-stop rod (29) for which three catch recesses (30) are formed in the upper marginal portion (28) of the housing (1) which is of arcuate construction to match the pivoting movement.
EP89103812A 1989-03-04 1989-03-04 Double circuit-breaking terminal Expired - Lifetime EP0386277B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AT89103812T ATE94311T1 (en) 1989-03-04 1989-03-04 DOUBLE DISCONNECT CLAMP.
DE89103812T DE58905551D1 (en) 1989-03-04 1989-03-04 Double disconnect terminal.
EP89103812A EP0386277B1 (en) 1989-03-04 1989-03-04 Double circuit-breaking terminal
ES89103812T ES2045218T3 (en) 1989-03-04 1989-03-04 DOUBLE DISCONNECTING BOX.
US07/471,480 US5041704A (en) 1989-03-04 1990-01-29 Dual disconnect terminal assembly and switch
JP2047373A JPH0727745B2 (en) 1989-03-04 1990-03-01 Double disconnect terminal
CA002011382A CA2011382A1 (en) 1989-03-04 1990-03-02 Double-break terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89103812A EP0386277B1 (en) 1989-03-04 1989-03-04 Double circuit-breaking terminal

Publications (2)

Publication Number Publication Date
EP0386277A1 EP0386277A1 (en) 1990-09-12
EP0386277B1 true EP0386277B1 (en) 1993-09-08

Family

ID=8201042

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89103812A Expired - Lifetime EP0386277B1 (en) 1989-03-04 1989-03-04 Double circuit-breaking terminal

Country Status (7)

Country Link
US (1) US5041704A (en)
EP (1) EP0386277B1 (en)
JP (1) JPH0727745B2 (en)
AT (1) ATE94311T1 (en)
CA (1) CA2011382A1 (en)
DE (1) DE58905551D1 (en)
ES (1) ES2045218T3 (en)

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Also Published As

Publication number Publication date
JPH0727745B2 (en) 1995-03-29
ATE94311T1 (en) 1993-09-15
JPH02278625A (en) 1990-11-14
DE58905551D1 (en) 1993-10-14
US5041704A (en) 1991-08-20
ES2045218T3 (en) 1994-01-16
EP0386277A1 (en) 1990-09-12
CA2011382A1 (en) 1990-09-04

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