EP0727090B1 - Leakage current module that can be assembled with circuit breakers - Google Patents

Leakage current module that can be assembled with circuit breakers Download PDF

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Publication number
EP0727090B1
EP0727090B1 EP94931504A EP94931504A EP0727090B1 EP 0727090 B1 EP0727090 B1 EP 0727090B1 EP 94931504 A EP94931504 A EP 94931504A EP 94931504 A EP94931504 A EP 94931504A EP 0727090 B1 EP0727090 B1 EP 0727090B1
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EP
European Patent Office
Prior art keywords
leakage current
current module
housing
shaped
circuit breakers
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
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EP94931504A
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German (de)
French (fr)
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EP0727090A1 (en
Inventor
Helmut Heindorf
Dietmar Hillebrand
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AEG Niederspannungstechnik GmbH and Co KG
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AEG Niederspannungstechnik GmbH and Co KG
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Publication of EP0727090A1 publication Critical patent/EP0727090A1/en
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Publication of EP0727090B1 publication Critical patent/EP0727090B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
    • H01H71/0271—Mounting several complete assembled circuit breakers together

Definitions

  • the invention relates to a fault current module which can be assembled in a modular design with circuit breakers of different rated currents (FL / CB switches), the individual devices with their housings being arranged laterally and connected to form a compact unit, and mechanically coupled with one another with their switching and triggering mechanisms. and a connection can be established by means of an electrical conductor between a summation current transformer of the fault current module and connecting terminals of the circuit breakers.
  • FL / CB switches circuit breakers of different rated currents
  • the invention has for its object to provide the housing of the fault current module in a switch of the type mentioned so that with the same housing parts and only by a different arrangement of these parts, the terminals either the upper or lower connection level of the switch can be assigned, and so a combination of residual current module and miniature circuit breakers can be created.
  • the invention is advantageous in that the housing of the fault current module can be easily assembled from a center body and two differently designed side bodies as required so that two variants of the fault current module are obtained with the same housing parts.
  • the two side bodies can be optionally connected to one another on the center body via symmetrically designed, clearly assigned housing contours.
  • the cohesion of the housing is achieved solely by positive locking and without additional connecting devices, because the shell-shaped ones are sufficient Housings for the cohesion and locking used for the usual connecting means. Normally only one tool set is required to manufacture the housing parts, so that two versions of the residual current module can be manufactured with lower overall investment costs.
  • the housing 1 for the fault current module essentially consists of a shell-shaped central body 2 and two differently designed side bodies 3 and 4 arranged on both sides thereof, which are each made as molded parts from an insulating material.
  • the middle body 2 predominantly encloses the mechanism parts and the summation current transformer (not shown) of the residual current module, while the two side bodies comprise approximately the terminal block areas of conventional residual current circuit breakers or one or more circuit breakers (not shown) which can be arranged in the drawing plane.
  • the middle body 2 is in turn in the plane (drawing level) from one bowl-shaped lower part 2.1, a box-shaped intermediate part 2.2 arranged in the contact area and a likewise bowl-shaped cover part 2.3, which, however, also covers the width of the intermediate part in the base area of the housing 1 (FIG. 3).
  • the intermediate part 2.2 located above it accommodates the mechanism and functional parts which are customary in the case of fault current modules, in compartments rich in contours divided by a partition wall 2.21.
  • the housing parts of the center body 2 can be assembled with one another via their outer housing contours and a plurality of centering members 2.4 designed as peg-shaped lugs or corresponding depressions in the plane of the drawing.
  • the lower part and cover part form the contact surfaces with adjacent switches, in particular with the line circuit breakers which can be arranged on one side.
  • the two outer sides thus limit the width of the fault current module, which normally comprises two so-called standard pole widths.
  • wider middle bodies and thus fault current modules for larger rated currents or several current paths can be produced, which then usually comprise three pole widths.
  • a side body 3 or 4 is attached to its two sides, which are designed such that they end flat on the outer sides 2.11, 2.31 with flush contours 2.5 of the housing (FIG. 3).
  • the somewhat larger side body 3 forms a box-shaped terminal space 3.1 in its upper region for receiving a plurality of connection terminals (not shown), while an exchangeably inserted insulating and locking part 3.2 is arranged in its lower region.
  • line feeds, not shown, of the summation current transformer to the line circuit breakers arranged behind them in the drawing plane can be inserted with the correct orientation in such a way that a fixed mutual association of side body 3 and summation current transformer can be produced.
  • the opposite side body 4 preferably receives additional terminals, not shown, which are independent of the later attachment of the Side body on the middle body can already be mounted correctly in position.
  • a second connection point results in each case between cutouts 2.7 in the lower part 2.1 and the same cutouts in the cover part 2.3 (not recognizable), to which hook-shaped projections 3,4 and 4.4 are assigned in the side bodies .
  • These are each arranged in pairs and point with their hook contour in the direction of lower part 2.1 or cover part 2.3.
  • the recesses 2.7 and the hook-shaped projections 3.4 and 4.4 interlock in such a way that the side bodies lie firmly against the middle body and, in the base area, a gap influencing the function of the residual current module can in no way occur on the side housing contour 2.5.
  • the housing is assembled by first the shell-shaped lower part 2.1 and the box-shaped intermediate part 2.2 together with the associated installation parts are composed, as shown in FIG. 2.
  • the centering members 2.4 and the partially interlocking housing contours prevent mutual displacement in the plane of the drawing.
  • the side bodies are inserted into the intermediate and lower parts perpendicular to the plane of the drawing, with the various brackets (3.3, 3.4, 3.5) and (4.3, 4.4, 4.5) in the corresponding recesses (2.6, 2.7, 2.8) referring to the one already described Wise tightly together.
  • the arrangement shown in FIG. 1 then results.
  • the cover part 2.3 can be put on, as shown in FIG. 3.
  • the side parts 3, 4 are shown interchanged with one another, and the insulating and closing part 3.2, which is only open on one side towards the outside 2.11, is rotated by 180 ° and inserted correctly, so that the cable leads of the summation current transformer are always on the outside 2.31 of the cover part are covered.
  • common connecting means such as screws or rivets, are introduced into the peg-shaped depressions of the centering members 2.4, which connect the lower part and the cover part and thus close the housing 1 in a functionally appropriate manner.
  • the two side bodies are thus held immovably and reliably on the central body without additional parts simply by positive locking.
  • the fault current module is connected “from above” in the embodiment according to FIG. 1, while this is done “from below” in the embodiment according to FIG. 3.
  • the circuit breakers, not shown, are lined up on the outside 2.11 of the lower part. Their number depends on whether the fault current module is designed for two, three or four-pole construction.

Landscapes

  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Transformers For Measuring Instruments (AREA)

Abstract

In what is known as a current-operated earth-leakage circuit breaker with overcurrent release, configured in a modular serial design, the leakage current module with its housing (1) is aligned laterally to circuit breakers and connected to them to form a compact modular unit. This involves establishing a connection between a summation current transformer of the leakage current module and terminals of the circuit breakers as well as coupling their switching and tripping mechanisms. The external electrical connection is effected at each leakage current module by means of terminals arranged within a terminal space (3.1) of the housing (1). To be able to allocate this leakage current module connection to either the upper or the lower connection level of the switch in accordance with the local conditions, the housing (1) of the leakage current module can be assembled with an interlocking fit between a multipart central body (2) and, situated on either side thereof, two side bodies (3, 4) extending over the full width of the housing. The two side bodies (3, 4) have different designs, the larger side body (3) comprising the terminal space (3.1). As needed, the two side bodies (3, 4) can be alternately joined to the central body (2) with its symmetrical housing contours (2.5) to form a finished housing (1) for all the components of the leakage current module. The leakage current module can thus be combined universally with circuit breakers to form current-operated earth-leakage circuit breakers with overcurrent relase, of varying rated current.

Description

Die Erfindung betrifft einen Fehlerstrommodul, der mit Leitungsschutzschaltern unterschiedlichen Bemessungsstromes in Modulbauweise zusammensetzbar ist (Fl/LS-Schalter), wobei die Einzelgeräte mit ihren Gehäusen seitlich anreihbar und zu einer kompakten Baueinheit verbindbar, sowie mit ihren Schalt- und Auslösemechanismen untereinander mechanisch koppelbar sind, und mittels elektrischer Leiter eine Verbindung zwischen einem Summenstromwandler des Fehlerstrommoduls und Anschlußklemmen der Leitungsschutzschalter herstellbar ist.The invention relates to a fault current module which can be assembled in a modular design with circuit breakers of different rated currents (FL / CB switches), the individual devices with their housings being arranged laterally and connected to form a compact unit, and mechanically coupled with one another with their switching and triggering mechanisms. and a connection can be established by means of an electrical conductor between a summation current transformer of the fault current module and connecting terminals of the circuit breakers.

Solche in modularer Reihenbauweise zusammengesetzten Fl/LS-Schalter sind bekannt, wie beispielsweise aus der EP 0 264 314 B1 hervorgeht.Such Fl / LS switches assembled in modular series construction are known, as can be seen, for example, from EP 0 264 314 B1.

Der Erfindung liegt die Aufgabe zugrunde, bei einem Schalter der eingangs genannten Art das Gehäuse des Fehlerstrommoduls so auszubilden, daß mit jeweils gleichen Gehäuseteilen und lediglich durch eine andere Anordnung dieser Teile die Anschlußklemmen entweder der oberen oder unteren Anschlußebene des Schalters zugeordnet werden können, und so eine universell anreihbare Kombination zwischen Fehlerstrommodul und Leitungsschutzschaltern herstellbar ist.The invention has for its object to provide the housing of the fault current module in a switch of the type mentioned so that with the same housing parts and only by a different arrangement of these parts, the terminals either the upper or lower connection level of the switch can be assigned, and so a combination of residual current module and miniature circuit breakers can be created.

Diese Aufgabe wird durch einen Fehlerstrommodul mit den Merkmalen des Patentanspruches 1 gelöst. Weiterbildungen und vorteilhafte Ausgestaltungen der Erfindung sind Gegenstände der Unteransprüche.This object is achieved by a fault current module with the features of claim 1. Developments and advantageous embodiments of the invention are the subject of the dependent claims.

Die Erfindung ist insofern vorteilhaft, als das Gehäuse des Fehlerstrommoduls aus einem Mittelkörper und zwei unterschiedlich ausgebildeten Seitenkörpern nach Bedarf problemlos so zusammensetzbar ist, daß zwei Varianten des Fehlerstrommoduls mit den gleichen Gehäuseteilen erhalten werden. Die beiden Seitenkörper lassen sich dabei am Mittelkörper über symmetrisch ausgebildete, eindeutig zugeordnete Gehäusekonturen wahlweise miteinander verbinden. Der Zusammenhalt des Gehäuses wird allein durch Formschluß und ohne zusätzliche Verbindungseinrichtungen erzielt, denn es genügen die bei schalenförmigen Gehäusen für den Zusammenhalt und zum Verschließen verwendeten üblichen Verbindungsmittel. Zur Herstellung der Gehäuseteile wird im Normalfall nur ein Werkzeugsatz benötigt, so daß zwei Ausführungen des Fehlerstrommoduls mit insgesamt geringeren Investitionskosten gefertigt werden können.The invention is advantageous in that the housing of the fault current module can be easily assembled from a center body and two differently designed side bodies as required so that two variants of the fault current module are obtained with the same housing parts. The two side bodies can be optionally connected to one another on the center body via symmetrically designed, clearly assigned housing contours. The cohesion of the housing is achieved solely by positive locking and without additional connecting devices, because the shell-shaped ones are sufficient Housings for the cohesion and locking used for the usual connecting means. Normally only one tool set is required to manufacture the housing parts, so that two versions of the residual current module can be manufactured with lower overall investment costs.

Da praktisch alle Einbauteile des Fehlerstrommoduls sowohl in ihrer Lage als auch im Aufbau, unabhängig von der jeweiligen Variante, den einzelnen Gehäuseteilen fest zugeordnet sind, ergibt sich von daher ebenfalls eine Fertigungsvereinfachung. Lediglich die Drahtzuführungen des Summenstromwandlers müssen in zwei verschiedene Richtungen abgewinkelt sein, um entweder über die obere oder die untere Anschlußklemmenebene die schaltungsrichtige Verbindung zu den Klemmen der Leitungsschutzschalter zu erhalten.Since practically all built-in parts of the fault current module are permanently assigned to the individual housing parts, both in their position and in their structure, regardless of the respective variant, this also simplifies production. Only the wire feeds of the total current transformer must be angled in two different directions in order to obtain the correct connection to the terminals of the circuit breakers either via the upper or the lower terminal level.

Anhand der Zeichnung ist die Erfindung an einem Ausführungsbeispiel nachstehend näher erläutert.

Fig. 1
zeigt ein offenes Gehäuses des Fehlerstrommoduls, jedoch ohne seine mechanischen und elektrischen Einbauteile. in räumlicher Darstellung, während in
Fig. 2
der Zusammenbau des Gehäuses gemäß Fig. 1 aus Mittel- und Seitenkörpern schematisch wiedergegehen ist. In
Fig. 3
ist das Gehäuse einschließlich Deckelteil mit gegenüber Fig. 1 und Fig. 2 getauschten Seitenkörpern verschlossen dargestellt.
The invention is explained in more detail below using an exemplary embodiment with reference to the drawing.
Fig. 1
shows an open housing of the fault current module, but without its mechanical and electrical components. in spatial representation, while in
Fig. 2
the assembly of the housing according to FIG. 1 from central and side bodies is shown schematically. In
Fig. 3
the housing including the cover part is shown closed with side bodies exchanged with respect to FIGS. 1 and 2.

Das Gehäuse 1 für den Fehlerstrommodul besteht im wesentlichen aus einem schalenförmig gestalteten Mittelkörper 2 und zwei beiderseits davon angeordneten, unterschiedlich ausgebildeten Seitenkörpern 3 bzw. 4, die jeweils als Formteile aus einem Isolierstoff hergestellt sind. Dabei umschließt überwiegend der Mittelkörper 2 die Mechanismusteile sowie den Summenstromwandler (nicht gezeigt) des Fehlerstrommoduls, während die beiden Seitenkörper etwa die Klemmenblockbereiche üblicher Fehlerstromschutzschalter bzw. eines oder mehrerer in Zeichnungsebene anreihbarer, nicht gezeigter Leitungsschutzschalter umfassen.The housing 1 for the fault current module essentially consists of a shell-shaped central body 2 and two differently designed side bodies 3 and 4 arranged on both sides thereof, which are each made as molded parts from an insulating material. The middle body 2 predominantly encloses the mechanism parts and the summation current transformer (not shown) of the residual current module, while the two side bodies comprise approximately the terminal block areas of conventional residual current circuit breakers or one or more circuit breakers (not shown) which can be arranged in the drawing plane.

Der Mittelkörper 2 ist seinerseits in Anreihebene (Zeichnungsebene) aus einem schalenförmigen Unterteil 2.1, einem im Berührungsbereich angeordneten, kastenförmigen Zwischenteil 2.2 und einem ebenfalls schalenförmigen Deckelteil 2.3 gebildet, welches jedoch im Sockelbereich des Gehäuses 1 die Breite des Zwischenteiles mit überdeckt (Fig. 3). Dadurch ist im Sockelbereich ein größerer Freiraum zur Unterbringung des bereits erwähnten nicht gezeigten Summenstromwandlers vorhanden, während das oberhalb davon befindliche Zwischenteil 2.2 in durch eine Trennwand 2.21 unterteilten konturenreichen Kammern die bei Fehlerstrommodulen üblichen Mechanismus- und Funktionsteile aufnimmt. Die Gehäuseteile des Mittelkörpers 2 sind untereinander über ihre äußeren Gehäusekonturen und mehrere als zapfenförmige Ansätze bzw. entsprechende Vertiefungen ausgebildete Zentrierglieder 2.4 in Zeichnungsebene zusammensetzbar. Unterteil und Deckelteil bilden dabei mit ihren nahezu glattflächigen Außenseiten 2.11 bzw. 2.31 die Berührungsflächen zu benachbarten Schaltern, insbesondere zu den an einer Seite anreihbaren Leitungsschutzschaltern. Die beiden Außenseiten begrenzen somit die Breite des Fehlerstrommoduls, der normalerweise zwei sogenannte Normpolbreiten umfaßt. Auf gleiche Weise lassen sich mit einem entsprechend breiteren Zwischenteil und einem angepaßten Deckelteil breitere Mittelkörper und damit Fehlerstrommodule für größere Bemessungsströme oder mehrere Strompfade herstellen, die dann zumeist drei Polbreiten umfassen.The middle body 2 is in turn in the plane (drawing level) from one bowl-shaped lower part 2.1, a box-shaped intermediate part 2.2 arranged in the contact area and a likewise bowl-shaped cover part 2.3, which, however, also covers the width of the intermediate part in the base area of the housing 1 (FIG. 3). As a result, there is a larger free space in the base area for accommodating the summation current transformer, not already mentioned, while the intermediate part 2.2 located above it accommodates the mechanism and functional parts which are customary in the case of fault current modules, in compartments rich in contours divided by a partition wall 2.21. The housing parts of the center body 2 can be assembled with one another via their outer housing contours and a plurality of centering members 2.4 designed as peg-shaped lugs or corresponding depressions in the plane of the drawing. With their almost smooth outer sides 2.11 and 2.31, the lower part and cover part form the contact surfaces with adjacent switches, in particular with the line circuit breakers which can be arranged on one side. The two outer sides thus limit the width of the fault current module, which normally comprises two so-called standard pole widths. In the same way, with a correspondingly wider intermediate part and an adapted cover part, wider middle bodies and thus fault current modules for larger rated currents or several current paths can be produced, which then usually comprise three pole widths.

Über die gesamte Breite des Mittelkörpers 2 ist an seinen beiden Seiten je ein Seitenkörper 3 bzw. 4 angesetzt, die so ausgebildet sind, daß sie an den Außenseiten 2.11, 2.31 mit bündig aneinanderliegenden Gehäusekonturen 2.5 ebenflächig abschließen (Fig. 3). Der etwas größere Seitenkörper 3 bildet in seinem oberen Bereich einen kastenförmigen Klemmenraum 3.1 zur Aufnahme mehrerer nicht gezeigter Anschlußklemmen, während in seinem unteren Bereich ein wechselbar eingelegtes Isolier- und Verschlußteil 3.2 angeordnet ist. In dieses Teil sind nicht gezeigte Leitungszuführungen des Summenstromwandlers zu den in Zeichnungsebene dahinter angereihten Leitungsschutzschaltern seitenrichtig derart einlegbar, daß eine feste gegenseitige Zuordnung von Seitenkörper 3 und Summenstromwandler herstellbar ist.Across the entire width of the central body 2, a side body 3 or 4 is attached to its two sides, which are designed such that they end flat on the outer sides 2.11, 2.31 with flush contours 2.5 of the housing (FIG. 3). The somewhat larger side body 3 forms a box-shaped terminal space 3.1 in its upper region for receiving a plurality of connection terminals (not shown), while an exchangeably inserted insulating and locking part 3.2 is arranged in its lower region. In this part, line feeds, not shown, of the summation current transformer to the line circuit breakers arranged behind them in the drawing plane can be inserted with the correct orientation in such a way that a fixed mutual association of side body 3 and summation current transformer can be produced.

Der gegenüberliegende Seitenkörper 4 nimmt vorzugsweise nicht gezeigte Zusatzklemmen auf, die unabhängig von der späteren Anbringung des Seitenkörpers am Mittelkörper bereits vorher lagegerecht montiert werden können.The opposite side body 4 preferably receives additional terminals, not shown, which are independent of the later attachment of the Side body on the middle body can already be mounted correctly in position.

Wesentliche Bedeutung für die wahlweise Zuordnung der beiden Seitenkörper 3, 4 zum Mittelkörper 2 und den festen Zusammenhalt des Gehäuses haben verschiedene, noch näher zu erläuternde leistenförmige Halterungen und die am Mittelkörper symmetrisch angeordneten seitlichen Gehäusekonturen 2.5. Wie aus Fig. 2 gut ersichtlich ist, sind im Zwischenteil 2.2 des Mittelkörpers an beiden Seiten schlitzförmige Aussparungen 2.6 durchlaufend in Zusammenbaurichtung ausgespart, in die die Seitenkörper jeweils mit einer stegförmigen Leiste 3.3 bzw. 4.3 eingreifen können. Diese Leisten sind an ihrer Vorderkante hakenförmig ausgebildet, so daß sich nach dem Zusammenfügen von Seitenkörper und Zwischenteil, ähnlich wie bei einem Nutenstein, ein fester gegenseitiger Halt ergibt.Various strip-shaped brackets and the lateral housing contours 2.5 arranged symmetrically on the central body are essential for the optional assignment of the two side bodies 3, 4 to the central body 2 and the solid cohesion of the housing. As can be clearly seen from FIG. 2, in the intermediate part 2.2 of the central body, slot-shaped recesses 2.6 are cut out on both sides continuously in the direction of assembly, into which the side bodies can each engage with a web-shaped strip 3.3 or 4.3. These strips are hook-shaped on their front edge, so that after joining the side body and intermediate part, similar to a sliding block, there is a firm mutual hold.

Ein zweiter Verbindungspunkt, wie er in Fig. 2 ebenfalls durch Pfeile angedeutet ist, ergibt sich jeweils zwischen Aussparungen 2.7 im Unterteil 2.1 und ebensolchen Aussparungen im Deckelteil 2.3 (nicht erkennbar), denen in den Seitenkörpern hakenförmige Ansätze 3,4 bzw. 4.4 zugeordnet sind. Diese sind jeweils paarweise angeordnet und zeigen mit ihrer Hakenkontur in Richtung Unterteil 2.1 bzw. Deckelteil 2.3. Die Aussparungen 2.7 und die hakenförmigen Ansätze 3.4 bzw. 4.4 greifen nach dem Zusammenbau derart ineinander, daß die Seitenkörper fest am Mittelkörper anliegen und auch im Sockelbereich ein die Funktion des Fehlerstrommoduls beeinflussender Spalt keinesfalls an der seitlichen Gehäusekontur 2.5 auftreten kann.A second connection point, as is also indicated by arrows in FIG. 2, results in each case between cutouts 2.7 in the lower part 2.1 and the same cutouts in the cover part 2.3 (not recognizable), to which hook-shaped projections 3,4 and 4.4 are assigned in the side bodies . These are each arranged in pairs and point with their hook contour in the direction of lower part 2.1 or cover part 2.3. After assembly, the recesses 2.7 and the hook-shaped projections 3.4 and 4.4 interlock in such a way that the side bodies lie firmly against the middle body and, in the base area, a gap influencing the function of the residual current module can in no way occur on the side housing contour 2.5.

Jeweils ähnliche hakenförmig ineinandergreifende Anordnungen zwischen dem Mittelkörper 2 und den beiden Seitenkörpern 3, 4 sind zweckmäßigerweise auch im Bodenbereich des Gehäuses vorgesehen. Hier fassen Zapfen 3.5 bzw. 4.5 an den Seitenkörpern in entsprechende Ausnehmungen 2.8 im Unterteil bzw. Deckelteil, wie insbesondere aus Fig. 3 gut erkennbar ist. Die vorbeschriebenen Halterungen können nach Art und Anzahl auch auf andere Weise realisiert sein, ohne den Rahmen der Erfindung zu verlassen.Similar hook-like interlocking arrangements between the middle body 2 and the two side bodies 3, 4 are expediently also provided in the bottom region of the housing. Here pins 3.5 and 4.5 grip on the side bodies in corresponding recesses 2.8 in the lower part or cover part, as can be seen particularly well from FIG. 3. The type and number of the holders described above can also be implemented in other ways without departing from the scope of the invention.

Der Zusammenbau des Gehäuses erfolgt, indem zuerst das schalenförmige Unterteil 2.1 und das kastenförmige Zwischenteil 2.2 nebst den zugehörigen Einbauteilen zusammengesetzt werden, wie es die Fig. 2 zeigt. Die Zentrierglieder 2.4 und die teilweise ineinandergreifenden Gehäusekonturen verhindern dabei ein gegenseitiges seitliches Verschieben in Zeichnungsebene. Danach werden die Seitenkörper in das Zwischenteil und Unterteil senkrecht zur Zeichnungsebene eingeschoben, wobei die verschiedenen Halterungen (3.3, 3.4, 3.5) bzw. (4.3, 4.4, 4.5) sich in den entsprechenden Ausnehmungen (2.6, 2.7, 2.8) auf die bereits vorbeschriebene Weise fest miteinander verhaken. Es ergibt sich danach die in Fig. 1 dargestellte Anordnung.The housing is assembled by first the shell-shaped lower part 2.1 and the box-shaped intermediate part 2.2 together with the associated installation parts are composed, as shown in FIG. 2. The centering members 2.4 and the partially interlocking housing contours prevent mutual displacement in the plane of the drawing. Then the side bodies are inserted into the intermediate and lower parts perpendicular to the plane of the drawing, with the various brackets (3.3, 3.4, 3.5) and (4.3, 4.4, 4.5) in the corresponding recesses (2.6, 2.7, 2.8) referring to the one already described Wise tightly together. The arrangement shown in FIG. 1 then results.

Nach dem Einbau der nicht gezeigten restlichen Mechanismus- und Funktionsteile, wobei der Summenstromwandler fest am Seitenteil 3 gehalten ist, kann das Deckelteil 2.3 aufgesetzt werden, wie es die Fig. 3 zeigt. In dieser Figur sind allerdings die Seitenteile 3, 4 miteinander vertauscht gezeigt, und auch das nur einseitig nach der Außenseite 2.11 hin offene Isolier- und Verschlußteil 3.2 ist um 180 ° gedreht seitenrichtig eingesetzt, damit die Leitungszuführungen des Summenstromwandlers an der Außenseite 2.31 des Deckelteils immer abgedeckt sind. Abschließend werden in die zapfenförmigen Einsenkungen der Zentrierglieder 2.4 übliche Verbindungsmittel, wie Schrauben oder Niete, eingebracht, die das Unterteil und das Deckelteil verbinden und damit das Gehäuse 1 funktionsgerecht verschließen. Die beiden Seitenkörper sind somit ohne zusätzliche Teile allein durch Formschluß unverschieblich und zuverlässig am Mittelkörper gehalten.After the installation of the remaining mechanism and functional parts, not shown, with the summation current transformer being held firmly on the side part 3, the cover part 2.3 can be put on, as shown in FIG. 3. In this figure, however, the side parts 3, 4 are shown interchanged with one another, and the insulating and closing part 3.2, which is only open on one side towards the outside 2.11, is rotated by 180 ° and inserted correctly, so that the cable leads of the summation current transformer are always on the outside 2.31 of the cover part are covered. Finally, common connecting means, such as screws or rivets, are introduced into the peg-shaped depressions of the centering members 2.4, which connect the lower part and the cover part and thus close the housing 1 in a functionally appropriate manner. The two side bodies are thus held immovably and reliably on the central body without additional parts simply by positive locking.

Da der externe elektrische Anschluß immer an den Klemmen des Seitenkörpers 3 erfolgt, wird bei der Ausführung nach Fig. 1 der Fehlerstrommodul "von oben" angeschlossen, während dies bei der Ausführung nach Fig. 3 "von unten" geschieht. Die nicht gezeigten Leitungsschutzschalter sind dabei an der Außenseite 2.11 des Unterteiles angereiht. Ihre Anzahl richtet sich jeweils danach, ob der Fehlerstrommodul für zwei-, drei- oder vierpolige Bauweise vorgesehen ist.Since the external electrical connection is always made at the terminals of the side body 3, the fault current module is connected "from above" in the embodiment according to FIG. 1, while this is done "from below" in the embodiment according to FIG. 3. The circuit breakers, not shown, are lined up on the outside 2.11 of the lower part. Their number depends on whether the fault current module is designed for two, three or four-pole construction.

Claims (10)

  1. Leakage current module which can be assembled in modular manner with circuit breakers of different current strengths, wherein the individual apparatus can be laterally aligned by their housings (1) and connected into a compact constructional unit, as well as can be mechanically coupled together by their switching and tripping mechanisms, and a connection between a summation current transformer of the leakage current module and terminals of the circuit breaker is producible by means of electrical conductors, characterised thereby that the housing (1) of the leakage current module can be assembled in interlocking manner by means of symmetrical housing contours, which are associated in unambiguous manner, from a multipart centre body (2), which is constructed shell-shaped in alignment plane, and two differently constructed side bodies (2, 4), which are arranged at both sides over the entire housing width, and that the two side bodies, which approximately encompass the terminal block regions,are selectably connectible in alternation with the centre body (2) for the production of housings (1) receiving all components of the leakage current module.
  2. Leakage current module according to claim 1, characterised thereby that retainers (2.6, 2.7, 2.8 as well as 3.3., 3.4, 3.5 or 4.3, 4.4, 4.5), which are identical each time,ensure holding together of the bodies (2, 3, 4) and are constructed to interengage, are moulded on at the two side bodies (3, 4) and at both sides of the centre body (2).
  3. Leakage current module according to claim 1 and 2, characterised thereby that the centre body (2) is connectible in interlocking manner with each side body (3 or 4) at least by way of two differently constructed, strip-shaped holders (2.6/3.3 or 4.3 and 2.7/3.4 or 2.8/3.5 or 4.5) insertable into one another.
  4. Leakage current module according to claim 1 to 3, characterised thereby that the centre body (2) is formed in the module plane from a shell-shaped lower part (2.1), a box-shaped intermediate part (2.2) arranged only in the upper profile range and a likewise approximately shell-shaped cover part (2.3) which outwardly closes off the housing (1) flushly and also engages over the intermediate part (2.2) in the base region.
  5. Leakage current module according to claim 4, characterised thereby that the lower part (2.1) intermediate part (2.2) and cover part (2.3) of the centre body can be assembled by way of centring elements (2.4) to engage over one another in the module plane.
  6. Leakage current module according to one of claims 1 to 5, characterised thereby that the side bodies (3.4) and the centre body (2) can be assembled to mutually interengage in the mannerof a tongue and groove by way of slot-shaped recesses (2.6) and correspondingly associated web-shaped strips (3.3 or 4.3).
  7. Leakage current module according to one of claims 1 to 5, characterised thereby that the side bodies (3, 4) are held between lower part (2.10 and cover part (2.3) by hook-shaped projections (2.7, 2.8/3.4, 3.5 or 4.4, 4.5) mutually engaging one behind the other.
  8. Leakage current module according to one of claims 1 to 7, characterised thereby that arranged in the one side body (3) are all terminals (terminal space 3.1) for the summation current transformer as well as an insulating and closure part (3.2) for the conductor guides thereof to the circuit breakers.
  9. Leakage current module according to claim 8, characterised thereby that the insulating and closure part (3.2) is selectably insertable into the one side body (3) by its open side corresponding to the conductor guides, which are bent correct left-to-right, of the summation current converter.
  10. Leakage current module according to one of claims 1 to 7, characterised thereby that the other side body (4) receives, without change of position, additional terminals for the connection of a relay or other electrical components independently of the assembly of the housing.
EP94931504A 1993-11-02 1994-11-02 Leakage current module that can be assembled with circuit breakers Expired - Lifetime EP0727090B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4337254A DE4337254B4 (en) 1993-11-02 1993-11-02 Fault current module, which can be assembled with circuit breakers
DE4337254 1993-11-02
PCT/DE1994/001288 WO1995012892A1 (en) 1993-11-02 1994-11-02 Leakage current module that can be assembled with circuit breakers

Publications (2)

Publication Number Publication Date
EP0727090A1 EP0727090A1 (en) 1996-08-21
EP0727090B1 true EP0727090B1 (en) 1997-06-18

Family

ID=6501532

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94931504A Expired - Lifetime EP0727090B1 (en) 1993-11-02 1994-11-02 Leakage current module that can be assembled with circuit breakers

Country Status (9)

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EP (1) EP0727090B1 (en)
AT (1) ATE154724T1 (en)
CZ (1) CZ284699B6 (en)
DE (2) DE4337254B4 (en)
ES (1) ES2105779T3 (en)
GR (1) GR3024068T3 (en)
HU (1) HU218400B (en)
PL (1) PL174737B1 (en)
WO (1) WO1995012892A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19632462B4 (en) * 1996-08-12 2005-05-04 Heinrich Kopp Ag Safety switch with forced disconnection
IT1306240B1 (en) * 1998-12-15 2001-06-04 Gewiss Spa CONNECTION DEVICE FOR MODULAR ELECTRIC MODULES
DE10034362A1 (en) * 2000-07-14 2002-01-24 Abb Patent Gmbh Circuit breaker or residual current circuit breaker
DE50309679D1 (en) * 2002-12-16 2008-06-05 Stefan Goethe guard
DE102004034859A1 (en) * 2004-07-19 2006-02-16 Siemens Ag Protection device in narrow construction
DE102004042427A1 (en) * 2004-09-02 2007-11-08 Abb Patent Gmbh Electrical installation device
DE202010018149U1 (en) 2010-03-01 2014-05-13 Phoenix Contact Gmbh & Co. Kg Terminal arrangement
DE102013008874A1 (en) * 2012-07-11 2014-01-16 Abb Ag Installation switching device with connection terminals

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289049A (en) * 1964-04-01 1966-11-29 Wadsworth Electric Mfg Co Circuit breakers
US3812400A (en) * 1973-03-05 1974-05-21 Ite Imperial Corp Modular ground fault interrupter
NL7614248A (en) * 1976-12-22 1978-06-26 Nl Weber Mij SCHEME FOR PROTECTION OF AN ELECTRICAL INSTALLATION IN A BUILDING.
DE3004211A1 (en) * 1980-02-06 1981-08-13 Brown, Boveri & Cie Ag, 6800 Mannheim Terminal cover for e.g. circuit interrupter - has fixing for engaging switch casing and holding cover in place
DE3106961C2 (en) * 1981-02-25 1984-10-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Additional device combined with miniature circuit breakers
FR2604294B1 (en) * 1986-09-23 1994-05-20 Merlin Et Gerin MULTIPOLAR DIFFERENTIAL CIRCUIT BREAKER WITH MODULAR ASSEMBLY
FR2624666B1 (en) * 1987-12-10 1990-04-06 Merlin Gerin
FR2640422B1 (en) * 1988-12-14 1996-04-05 Merlin Gerin MODULAR ASSEMBLY OF A MULTIPOLAR DIFFERENTIAL CIRCUIT BREAKER

Also Published As

Publication number Publication date
WO1995012892A1 (en) 1995-05-11
CZ284699B6 (en) 1999-02-17
DE4337254B4 (en) 2005-05-19
DE4337254A1 (en) 1995-05-04
PL314171A1 (en) 1996-08-19
ATE154724T1 (en) 1997-07-15
DE59403204D1 (en) 1997-07-24
PL174737B1 (en) 1998-09-30
EP0727090A1 (en) 1996-08-21
CZ121696A3 (en) 1998-03-18
HU218400B (en) 2000-08-28
HU9601148D0 (en) 1996-07-29
ES2105779T3 (en) 1997-10-16
HUT76210A (en) 1997-07-28
GR3024068T3 (en) 1997-10-31

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