EP2156456A1 - Switching device - Google Patents

Switching device

Info

Publication number
EP2156456A1
EP2156456A1 EP08735246A EP08735246A EP2156456A1 EP 2156456 A1 EP2156456 A1 EP 2156456A1 EP 08735246 A EP08735246 A EP 08735246A EP 08735246 A EP08735246 A EP 08735246A EP 2156456 A1 EP2156456 A1 EP 2156456A1
Authority
EP
European Patent Office
Prior art keywords
housing
switching device
terminal
connection
load
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08735246A
Other languages
German (de)
French (fr)
Other versions
EP2156456B1 (en
Inventor
Herbert Roth
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.)
Ellenberger and Poensgen GmbH
Original Assignee
Ellenberger and Poensgen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ellenberger and Poensgen GmbH filed Critical Ellenberger and Poensgen GmbH
Priority to PL08735246T priority Critical patent/PL2156456T3/en
Publication of EP2156456A1 publication Critical patent/EP2156456A1/en
Application granted granted Critical
Publication of EP2156456B1 publication Critical patent/EP2156456B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • H01H71/082—Connections between juxtaposed circuit breakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural 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
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
    • H01R9/2675—Electrical interconnections between two blocks, e.g. by means of busbars

Definitions

  • the invention relates to an electrical switching device, in particular in the form of a DIN rail mounted device.
  • An electrical switching device such as a circuit breaker, a mechanical, electronic or mechatronic switch or a relay, usually has a feed connection via which a mains-side and thus current-carrying power line can be connected, as well as a load connection via which a load side outgoing power line can be connected ,
  • a power distribution system is hereinafter generally referred to an electrical installation with several electrical load (current) circles, which is supplied from a common main power line current, and which are connected to a common current return.
  • switching devices are usually provided in particular at the branches where the load circuits branch off from the main power line.
  • the switching device serves to electrically isolate the associated load circuit in case of need from the main current supply line.
  • the feed terminal for switching devices which are designed as DIN rail mounted devices, sometimes a coupling connection, which can be contacted with a multiple switching devices cross-current Strommasischischiene.
  • the current feedback from the load circuits is usually carried out separately from the switching devices by means of separate circuit elements in such an installation.
  • switching devices are often provided with additional signal connections to which information about the switching state of the switching device can be tapped.
  • these signal connections are regularly designed for low-power electrical currents and are neither intended nor suitable for current feedback from the load circuits.
  • the invention has for its object to provide an electrical switching device that allows a rational and simple construction of an electrical system, in particular a power distribution system.
  • the switching device comprises in a common housing a switching device, a feed connection, a load connection and a return connection.
  • the switching device is optionally designed as a mechanical, electronic or mechatronic switch, but preferably as a circuit breaker and generally serves to interrupt an electrically conductive connection between the feed terminal and the load terminal.
  • the feed terminal serves to supply a current to the switching device.
  • the feed terminal is used to connect the switchgear to the main power supply line.
  • it comprises a first coupling contact, which is designed to make contact with a first (current-carrying) current busbar.
  • the load terminal is intended to be connected to the supply line of an electrical load circuit.
  • the inventively additionally provided return connection is used to derive the load current from the load circuit to the current-carrying main power line. It comprises, on the one hand, a connection terminal to which the (load current-carrying) return line of the load circuit can be connected.
  • the remindersan- includes further comprises a second coupling contact, which is designed for contacting a second (current-carrying) current busbar.
  • the connection terminal and the coupling contact of the return connection are short-circuited inside the housing.
  • the return connection is preferably electrically insulated from all other electrical functional parts and conductors of the switching device.
  • the return connection preferably also serves as a ground connection for the electronic functional parts of the switching device.
  • the integration of the return connection in the switching device makes it possible in a particularly simple manner to build a power distribution system from a number of juxtaposed switching devices, to realize the power distribution system except the switching devices themselves basically only the corresponding with the coupling contacts current bus rails are needed, in this case as strom réellede or stromabracede main power line act.
  • An electrical system, in particular a power distribution system can be realized in this way with very few circuit components, and thus on the one hand efficiently and on the other hand with low installation and space requirements. Regardless of this, however, the individual switching device can likewise be used in the context of conventional individual wiring. The switching device is thus extremely flexible in the context of an electrical system.
  • the switching device is designed in particular as a so-called DIN rail mounted device.
  • the housing has insofar on a rear side a profiled recording (Avemrastnut) for placing the switching device on a mounting rail.
  • the opposite side of this back side is referred to as (housing) front side and is facing an operator in the intended installation position of the switching device.
  • the profile direction of the receptacle (and the support rail corresponding to it) defines a row direction along which a plurality of switching devices in the assembled state can be lined up as intended.
  • the vertical to this row direction housing sides are referred to as (housing) end faces.
  • the other two sides of the housing are designated according to the intended installation position of the switching device as (housing) top side or (housing) underside.
  • At least one of the coupling contacts but preferably each coupling contact, arranged in a respective associated housing slot, which completely passes through the housing in the row direction. If several switching devices are strung together, the or each housing slot is aligned with the associated housing slots of the other switching devices.
  • This allows the use of a profiled part designed as a current busbar, which is pressed into the aligned housing slots and thus shielded from contact with the housing.
  • at least one, in particular each coupling contact, and optionally the corresponding housing slot is arranged on the front side of the housing, a particularly simple assembly of the bus bars is made light, which is particularly easy to make even in confined spaces in a cabinet.
  • the Strommasischienen by the arrangement of the coupling contacts on the front of the housing are still visible even when the switching device is installed in a cabinet, which promotes the clarity of a fitted with the switching devices electrical system.
  • the load connection and the remind- connection are arranged on a common side, in particular the housing bottom, so that both lines of the switching device associated load circuit on the same side of the housing with the switching device be contacted.
  • the feed connection is arranged in an advantageous development of this idea on a housing side opposite the housing side, in particular on the housing upper side. In this way, the current-supplying main power line and the load circuit are particularly clearly segregated leh.
  • the feed connection comprises, in addition to the coupling contact, a connection terminal connected in parallel for connecting a conductor.
  • a conductor here - in contrast to the rigid busbars - a flexible wire or stranded conductor designated.
  • the or each housing slot is expediently dimensioned such that it receives the associated coupling contact finger-safe.
  • This makes it possible, in particular, to use the switching device in single wiring, ie without the use of a current busbar, without having to cover the housing slot for safety reasons.
  • the finger-safe design of the housing slot is particularly advantageous if the housing slot is arranged on the housing in the easily accessible housing front side.
  • the switching device additionally comprises at least one signal terminal, on which a switching signal can be tapped, which is characteristic of the switching state of the switching device, based on which therefore the switching state of the switching device can be determined.
  • an (active) current or voltage signal can be output, which is fed, for example, from the current flowing through the switching device current.
  • a switching signal but in this case, a low-voltage or low-voltage signal is used, the electrical power is significantly less than the power of the load current.
  • the switching signal is predetermined by the (passive) switching state of a signal switch, which is coupled to the switching state of the switching device. In this case, two signal connections connected to the signal switch are expediently provided.
  • the signal terminal or at least one of the signal terminals comprises in appropriate configuration of the switching device in turn a coupling contact for connecting a sig- nalstromschiene, said coupling contact is in turn preferably arranged in an associated housing slot, which completely passes through the housing in the row direction. Also, this housing slot is preferably formed finger-safe, in particular in order to exclude a risk of injury to users in the event of a faulty current flashover on the signal circuit. To improve the ease of use and the or each coupling contact of the signal terminal, and possibly the associated housing slot, are arranged on the housing front side.
  • the signal terminals unlike the feed terminal, the load terminal and the return terminal, are preferably designed for low power electrical currents that are harmless to the human body.
  • the housing preferably has a stepped profile that includes a comparatively narrow housing head and a housing base that is elongated (and thus overhanging the housing head).
  • the housing head in this case forms a front housing section, while the housing base forms a rear housing section.
  • the feed connection and the return connection are preferably arranged in the housing base, while the load connection is arranged in the housing head. hereby a simple wiring of the switching device is possible in a comparatively small space. In particular, in this way, in the assembled state, the bus bars corresponding to the feed-in connection and the return connection are "tidied up" in the housing base, without hindering the connection of conductors to the connections of the switching device.
  • FIG. 1 is a perspective view of a single switching device with a feed connection, a load connection, a return connection and two signal connections,
  • FIG. 2 in a schematic representation of the circuitry construction of
  • Switching device according to FIG. 1, FIG. 3 in illustration according to FIG. 1, four switching devices arranged one behind the other according to FIG.
  • FIG. 4 in illustration of FIG. 1 five juxtaposed switching devices according to
  • FIG. 5 in illustration of FIG. 1 five juxtaposed switching devices whose
  • Infeed and return connections are closed in parallel by a respective busbar, in which case the signal connections of the switching devices are connected in parallel by signal busbars.
  • the switching device 1 shown initially in the view from the outside in FIG. 1 comprises a housing 2 made of insulating material.
  • the switching device 1 is designed as a modular device and has a typical for such devices, stepped housing shape with a housing. Sekopf 3 and on the other hand extended on both sides housing base 4.
  • the housing base 4 forms a housing section adjoining a housing rear side 5, the housing head 3 a housing section adjoining a housing front side 6.
  • the switching device 1 is designed for a defined mounting position, in which the housing 2 faces the rear side of the housing 5 of the rear wall of a control cabinet, while the housing front side 6 facing an operator in the installed position when looking into the cabinet.
  • the switching device 1 has a latching groove 7 on the housing rear side 5, with which the switching device 1 can be snapped onto a mounting rail 8 (indicated dotted in the illustration).
  • the profile axis of the support rail 8, and the corresponding Aufrastnut 7 defines a row direction 9, along which a plurality of switching devices 1 - as shown in FIGS. 3 to 5 - can be lined up by snapping onto the support rail 8 aligned.
  • housing end faces 10 The vertical to the row direction 9 side surfaces of the housing 2 are referred to as housing end faces 10.
  • the housing sides perpendicular to the housing end faces 10, the housing front side 6 and the housing rear side 5 are designated as the housing upper side 11 or as the housing underside 12, in accordance with the intended installation position of the switchgear 1.
  • the switching device 1 For supplying a current, the switching device 1 comprises a feed terminal 13, which is arranged in the region of the housing upper side 11.
  • the feed terminal 13 comprises a terminal 14 designed as a screw terminal, to which a flexible wire or stranded conductor for supplying power can be connected.
  • the feed connection 13 further comprises a coupling contact 15 connected in parallel to the connection terminal 14, to which a current busbar 16 (FIGS. 4 and 5) can be brought into contact.
  • the coupling contact 15 is in this case arranged within a housing slot 17, which opens to the housing front side 6, and which extends in the row direction 9 over the entire housing width and thus also to the housing. sestirn beauver 10 is open.
  • the housing slot 17 is dimensioned such that the current busbar 16 can be pressed accurately into it.
  • the switching device 1 further comprises a load output 18, to which a load circuit (or load circuit) 18b (FIG. 2) containing a load 18a (FIG. 2) can be connected to an associated supply line 18c (FIG is.
  • the load output 18 includes for connection of the supply line 18c accessible from the housing bottom 12 from terminal 19, which is also designed as a screw.
  • the switching device 20 has a circuit breaker function, that is configured to separate the current path formed between the feed terminal 13 and the load terminal 18 in the event of an overcurrent.
  • the switching device 20 comprises for this purpose a switching contact 21 and an overcurrent release 22.
  • the switching contact 21 is coupled to the overcurrent release via a switching mechanism 23 in the form of a switching mechanism, so that the overcurrent release 22 opens the switching contact 21 via the switching mechanism 23 in the event of an overcurrent.
  • the overcurrent release 22 is based here in particular according to the usual
  • the switching mechanism 23 is in turn coupled to a manual operating element 24 - here in the form of a sliding or tilting lever.
  • the manual operating element 24 is accessible from the outside on the housing front side 6 and makes it possible to manually and reversibly open and close the switching contact 21 via the switching mechanism 23.
  • the switching device 20 with the associated switching contact 21, overcurrent release 22, switching mechanism 23 and manual operating element 24 may also be replaced by an electronic switching element.
  • a signal circuit 25 is further integrated.
  • the signal circuit 25 comprises two signal contacts 26 and 27 and a signal switch 28 interposed therebetween.
  • Clocks 26 and 27 in this case comprises a connection terminal 29 or 30 in the form of a screw and a respective parallel coupling contact 31 and 32.
  • the terminals 29 and 30 are in this case for connecting a conductor of the housing top side 11 accessible (so that in the illustration according to FIG. 1, of these terminals 29 and 30 only the receptacles for the clamping screws are visible).
  • the coupling contacts 31 and 32 are arranged in (each a coupling contact 31, 32 associated) housing slots 33,34, wherein each housing slot 33,34 in turn extends in the row direction 9 over the entire housing width.
  • Each of the housing slots 33 and 34 serves to receive a Signalstromschie- ne 35,35 '(as shown in Figs. 4 and 5).
  • the switching device 1 comprises a return connection 36, which serves to connect a return line 36 a (FIG. 2, 4) of the load circuit 18 b.
  • the return connection 36 comprises a connecting terminal 37 again designed as a screw terminal, which is accessible from the housing underside 12.
  • the feedback connection 36 furthermore comprises a coupling contact 38 connected inside the housing with the connection terminal 37.
  • the coupling contact 38 is arranged in a housing slot 39 located near the housing underside 12, which in turn extends in the row direction 9 over the entire housing width, and which accommodates a housing opens with the coupling contact 38 corresponding current busbar 40 (Fig. 4 and 5) to the housing front side 6 out.
  • the feed terminal 13 and the return terminal 36 in the housing base 4 are arranged in the housing head 3, which allows a clear and user-friendly wiring of the switching device 1.
  • Fig. 3 shows a plurality of juxtaposed switching devices 1 of the type described above and a contrast simplified switching device 1 ', in which the signal circuit 25, and accordingly the associated signal terminals 26 and 27, are omitted.
  • the modified switching device 1 ' can also be used as (comparatively low-cost) connection module for contacting a number of switching devices 1 are used in the context of a power distribution system.
  • the supply terminals 13 of the series-connected switching devices 1 (or 1 ') are connected in parallel by the current busbar 16 into the aligned housing slots 17 of the switching devices 1 (or 1 ') pressed, and is contacted with the coupling contacts 15.
  • the current busbar 16 in this case is dimensioned with regard to its length such that it extends over the total width of all switching devices 1 (or 1 ') to be integrated into the power distribution system.
  • the connection of the thus connected in parallel switching devices 1 (or 1 ') to an external power source takes place here by conventional wiring of any switching device 1 (or 1') via its terminal 14th
  • the return terminals 36 of the juxtaposed switching devices 1 are connected in parallel by pressing the Stromammenischiene 40 in the housing slot 39, the Stromammenischiene 40 or the terminal 37 with an electrical return potential, in particular ground, are connected.
  • Each of the switching devices 1 (or 1 ') is preferably assigned a load circuit 18b within the scope of the power distribution system.
  • FIG. 4 shows the connection of the load circuits 18b by way of example for one of the switching devices 1.
  • another switching device 1 (or 1 ') is provided, which serves only for contacting the bus bars 16 and 40 with the external power supply or ground, and therefore no separate load circuit is assigned.
  • the individual load circuits 18b, the respectively associated switching device 1 (or 1 ') connected by the supply line 18c of the respective load circuit 18b to the load terminal 18 of the switching device 1 (or 1'), and the return line 36a of the load circuit 18b to the terminal 37 of the switching device 1 (or 1 ') are connected.
  • the signal circuits 25 of the juxtaposed switching devices 1 with each other in different ways be interconnected.
  • 4 shows in this respect a configuration of a power distribution system consisting of five switching devices 1, in which the signal circuits 25 of the switching devices 1 are connected in series with one another.
  • Fig. 5 shows an alternative configuration of the distribution system in which the signal circuits 25 are connected in parallel.
  • any combinations of parallel and series circuits of the signal circuits 25 are possible.
  • one or more signal circuits 25 can also be individually wired via the connection terminals 29 and 30.

Abstract

The invention relates to an electrical switching device (1) that allows for a rational and simple structure of an electrical system, particularly a power distribution system. The switching device (1), particularly embodied in the form of a serial installation device, comprises a housing (2) and a switching unit (20) accommodated therein for interrupting an electrical circuit, a feed connection (13) for supplying a current to the switching unit (20), said feed connection having a first coupling contact (15) for contacting a current busbar (16), a load connection (18) for contacting a supply line (18c) of a load circuit (18b) with the switching unit (20), and a return connection (36) having a terminal clamp (37) for contacting the return line (36a) of the load circuit (18b) and a second coupling contact (38) connected to the terminal clamp (37) inside the housing for contacting a second current busbar (40).

Description

Beschreibung Schaltgerät Description switching device
Die Erfindung bezieht sich auf ein elektrisches Schaltgerät, insbesondere in Form eines Reiheneinbaugerätes.The invention relates to an electrical switching device, in particular in the form of a DIN rail mounted device.
Ein elektrisches Schaltgerät, wie beispielsweise ein Schutzschalter, ein mechanischer, elektronischer oder mechatronischer Schalter oder ein Relais, weist üblicherweise einen Einspeisungsanschluss auf, über den eine netzseitige und somit stromzuführende Stromleitung angeschlossen werden kann, sowie einen Lastanschluss, über den eine lastseitig abgehende Stromleitung anschließbar ist.An electrical switching device, such as a circuit breaker, a mechanical, electronic or mechatronic switch or a relay, usually has a feed connection via which a mains-side and thus current-carrying power line can be connected, as well as a load connection via which a load side outgoing power line can be connected ,
Als Stromverteilungssystem wird nachfolgend allgemein eine elektrische Installation mit mehreren elektrischen Last(strom)kreisen bezeichnet, denen aus einer gemeinsamen Hauptstromleitung Strom zugeführt ist, und die an eine gemeinsame Stromrückführung angeschlossen sind. Im Rahmen eines solchen Stromverteilungssystems sind Schaltgeräte üblicherweise insbesondere an den Zweigstellen vorgesehen, an denen die Laststromkreise von der Hauptstromleitung abzweigen. Das Schaltgerät dient hierbei dazu, den zugeordneten Laststromkreis im Bedarfsfall von der stromzuführenden Hauptstromleitung elektrisch zu trennen. Im Sinne eines vereinfachten Anschlusses mehrerer paralleler Laststromkreise umfasst der Einspeisungsanschluss bei Schaltgeräten, die als Reiheneinbaugeräte ausgeführt sind, bisweilen einen Koppelanschluss, der mit einer mehrere Schaltgeräte übergreifenden stromzuführenden Stromsammeischiene kontaktierbar ist. Die Stromrückführung aus den Laststromkreisen erfolgt bei einer solchen Installation üblicherweise getrennt von den Schaltgeräten mittels separater Schaltungselemente. Zwar sind Schaltgeräte häufig mit zusätzlichen Signalanschlüssen versehen, an denen eine Information über den Schaltzustand des Schaltgeräts abgreifbar ist. Diese Signalanschlüsse sind aber regelmäßig für elektrische Ströme mit geringer Leistung ausgelegt und für die Stromrückführung aus den Laststrom- kreisen weder bestimmt noch geeignet. Der Erfindung liegt die Aufgabe zugrunde, ein elektrisches Schaltgerät anzugeben, das einen rationellen und einfachen Aufbau einer elektrischen Anlage, insbesondere eines Stromverteilungssystems, ermöglicht.As a power distribution system is hereinafter generally referred to an electrical installation with several electrical load (current) circles, which is supplied from a common main power line current, and which are connected to a common current return. In the context of such a power distribution system switching devices are usually provided in particular at the branches where the load circuits branch off from the main power line. The switching device serves to electrically isolate the associated load circuit in case of need from the main current supply line. In the sense of a simplified connection of several parallel load circuits, the feed terminal for switching devices, which are designed as DIN rail mounted devices, sometimes a coupling connection, which can be contacted with a multiple switching devices cross-current Strommasischischiene. The current feedback from the load circuits is usually carried out separately from the switching devices by means of separate circuit elements in such an installation. Although switching devices are often provided with additional signal connections to which information about the switching state of the switching device can be tapped. However, these signal connections are regularly designed for low-power electrical currents and are neither intended nor suitable for current feedback from the load circuits. The invention has for its object to provide an electrical switching device that allows a rational and simple construction of an electrical system, in particular a power distribution system.
Diese Aufgabe wird erfindungsgemäß gelöst durch die Merkmale des Anspruchs 1. Danach umfasst das Schaltgerät in einem gemeinsamen Gehäuse eine Schalteinrichtung, einen Einspeisungsanschluss, einen Lastanschluss sowie einen Rückführungsan- schluss.This object is achieved by the features of claim 1. Thereafter, the switching device comprises in a common housing a switching device, a feed connection, a load connection and a return connection.
Die Schalteinrichtung ist wahlweise als mechanischer, elektronischer oder mechatroni- scher Schalter, bevorzugt aber als Schutzschalter ausgebildet und dient allgemein zur Unterbrechung einer elektrisch leitenden Verbindung zwischen dem Einspeisungsanschluss und dem Lastanschluss. Der Einspeisungsanschluss dient zur Zuführung eines Stromes an die Schalteinrichtung. Innerhalb eines Stromverteilungssystems dient der Einspeisungsanschluss zum Anschluss des Schaltgeräts an die stromzuführende Hauptstromleitung. Er umfasst hierzu einen ersten Koppelkontakt, der zur Kontaktie- rung einer ersten (stromzuführenden) Stromsammeischiene ausgebildet ist. Der Lastanschluss ist dafür vorgesehen, mit der Zuführungsleitung eines elektrischen Lastkreises verbunden zu werden.The switching device is optionally designed as a mechanical, electronic or mechatronic switch, but preferably as a circuit breaker and generally serves to interrupt an electrically conductive connection between the feed terminal and the load terminal. The feed terminal serves to supply a current to the switching device. Within a power distribution system, the feed terminal is used to connect the switchgear to the main power supply line. For this purpose, it comprises a first coupling contact, which is designed to make contact with a first (current-carrying) current busbar. The load terminal is intended to be connected to the supply line of an electrical load circuit.
Der erfindungsgemäß zusätzlich vorgesehene Rückführungsanschluss dient zur Ableitung des Laststromes aus dem Laststromkreis an die stromabführende Hauptstromleitung. Er umfasst zum einen eine Anschlussklemme, an die die (laststromführende) Rückführungsleitung des Laststromkreises anschließbar ist. Der Rückführungsan- Schluss umfasst des Weiteren einen zweiten Koppelkontakt, der zur Kontaktierung einer zweiten (stromrückführenden) Stromsammeischiene ausgebildet ist. Die Anschlussklemme und der Koppelkontakt des Rückführungsanschlusses sind gehäuseintern kurzgeschlossen. Bei einem elektromechanischen (Schutz-)Schalter ist der Rückführungsanschluss bevorzugt gegenüber allen weiteren elektrischen Funktionsteilen und Leitern des Schaltgeräts elektrisch isoliert. Bei Ausführung des Schaltgeräts als elektronischer (Schutz-)Schalter dient der Rückführungsanschluss dagegen bevorzugt auch als Masseanschluss für die elektronischen Funktionsteile des Schaltgeräts. Die Integration des Rückführungsanschlusses in das Schaltgerät ermöglicht es auf besonders einfache Weise, ein Stromverteilungssystem aus einer Anzahl aneinander gereihter Schaltgeräte aufzubauen, wobei zur Realisierung des Stromverteilungssystems außer den Schaltgeräten selbst grundsätzlich lediglich die mit den Koppelkontakten korrespondierenden Stromsammeischienen benötigt werden, die in diesem Fall als stromzuführende bzw. stromabführende Hauptstromleitung wirken. Eine elektrische Anlage, insbesondere ein Stromverteilungssystem, kann auf diese Weise mit sehr wenigen schaltungstechnischen Komponenten, und somit einerseits rationell und andererseits mit geringem Montage- und Platzaufwand realisiert werden. Das einzelne Schalt- gerät kann ungeachtet dessen aber ebenso im Rahmen einer herkömmlichen Einzelverdrahtung eingesetzt werden. Das Schaltgerät ist somit im Rahmen einer elektrischen Anlage äußerst flexibel einsetzbar.The inventively additionally provided return connection is used to derive the load current from the load circuit to the current-carrying main power line. It comprises, on the one hand, a connection terminal to which the (load current-carrying) return line of the load circuit can be connected. The Rückführungsan- includes further comprises a second coupling contact, which is designed for contacting a second (current-carrying) current busbar. The connection terminal and the coupling contact of the return connection are short-circuited inside the housing. In the case of an electromechanical (protective) switch, the return connection is preferably electrically insulated from all other electrical functional parts and conductors of the switching device. In contrast, when the switching device is designed as an electronic (protective) switch, the return connection preferably also serves as a ground connection for the electronic functional parts of the switching device. The integration of the return connection in the switching device makes it possible in a particularly simple manner to build a power distribution system from a number of juxtaposed switching devices, to realize the power distribution system except the switching devices themselves basically only the corresponding with the coupling contacts current bus rails are needed, in this case as stromzuführende or stromabführende main power line act. An electrical system, in particular a power distribution system, can be realized in this way with very few circuit components, and thus on the one hand efficiently and on the other hand with low installation and space requirements. Regardless of this, however, the individual switching device can likewise be used in the context of conventional individual wiring. The switching device is thus extremely flexible in the context of an electrical system.
Das Schaltgerät ist insbesondere als so genanntes Reiheneinbaugerät ausgebildet. Das Gehäuse weist insofern an einer Rückseite eine profilierte Aufnahme (Aufrastnut) zum Aufsetzen des Schaltgeräts auf eine Tragschiene auf. Die dieser Rückseite entgegengesetzte Gehäuseseite wird als (Gehäuse-)Frontseite bezeichnet und ist in der vorgesehenen Einbaustellung des Schaltgeräts einem Bediener zugewandt. Die Profilrichtung der Aufnahme (und der mit dieser korrespondierenden Tragschiene) definiert eine Reihenrichtung, entlang derer mehrere Schaltgeräte in Montagezustand bestimmungsgemäß aneinander aufgereiht werden können. Die zu dieser Reihenrichtung senkrechten Gehäuseseiten sind als (Gehäuse-)Stirnseiten bezeichnet. Die beiden übrigen Gehäuseseiten sind entsprechend der bestimmungsgemäßen Einbaustellung des Schaltgeräts als (Gehäuse-)Oberseite bzw. (Gehäuse-)Unterseite bezeichnet.The switching device is designed in particular as a so-called DIN rail mounted device. The housing has insofar on a rear side a profiled recording (Aufrastnut) for placing the switching device on a mounting rail. The opposite side of this back side is referred to as (housing) front side and is facing an operator in the intended installation position of the switching device. The profile direction of the receptacle (and the support rail corresponding to it) defines a row direction along which a plurality of switching devices in the assembled state can be lined up as intended. The vertical to this row direction housing sides are referred to as (housing) end faces. The other two sides of the housing are designated according to the intended installation position of the switching device as (housing) top side or (housing) underside.
In einer bevorzugten Ausbildung des Schaltgeräts ist mindestens einer der Koppelkontakte, bevorzugt aber jeder Koppelkontakt, in einem jeweils zugeordneten Gehäuseschlitz angeordnet, der das Gehäuse in Reihenrichtung vollständig durchsetzt. Werden mehrere Schaltgeräte aneinandergereiht, so fluchtet der oder jeder Gehäuseschlitz mit den zugehörigen Gehäuseschlitzen der anderen Schaltgeräte. Dies ermöglicht den Einsatz einer als Profilteil ausgebildeten Stromsammeischiene, die in die fluchtenden Gehäuseschlitze eingedrückt wird und somit durch das Gehäuse berührungssicher abgeschirmt ist. Indem bevorzugt mindestens einer, insbesondere jeder Koppelkontakt, und gegebenenfalls der damit korrespondierende Gehäuseschlitz, an der Gehäusefrontseite angeordnet ist, wird eine besonders einfache Montage der Stromsammeischienen ermög- licht, die insbesondere auch unter beengten Platzverhältnissen in einem Schaltschrank problemlos vorzunehmen ist. Zudem sind die Stromsammeischienen durch die Anordnung der Koppelkontakte an der Gehäusefrontseite auch dann noch sichtbar, wenn das Schaltgerät in einem Schaltschrank eingebaut ist, was die Übersichtlichkeit einer mit den Schaltgeräten bestückten elektrischen Anlage fördert.In a preferred embodiment of the switching device, at least one of the coupling contacts, but preferably each coupling contact, arranged in a respective associated housing slot, which completely passes through the housing in the row direction. If several switching devices are strung together, the or each housing slot is aligned with the associated housing slots of the other switching devices. This allows the use of a profiled part designed as a current busbar, which is pressed into the aligned housing slots and thus shielded from contact with the housing. By preferably at least one, in particular each coupling contact, and optionally the corresponding housing slot, is arranged on the front side of the housing, a particularly simple assembly of the bus bars is made light, which is particularly easy to make even in confined spaces in a cabinet. In addition, the Strommasischienen by the arrangement of the coupling contacts on the front of the housing are still visible even when the switching device is installed in a cabinet, which promotes the clarity of a fitted with the switching devices electrical system.
Ebenfalls im Sinne einer besonders einfachen und übersichtlichen Verdrahtung des Schaltgeräts ist vorzugsweise vorgesehen, dass der Lastanschluss und der Rückfüh- rungsanschluss an einer gemeinsamen Gehäuseseite, insbesondere der Gehäuseunterseite, angeordnet sind, so dass beide Leitungen des dem Schaltgerät zugeordneten Laststromkreises an derselben Gehäuseseite mit dem Schaltgerät kontaktiert werden. Der Einspeisungsanschluss ist in einer vorteilhaften Weiterentwicklung dieses Gedankens dagegen an einer zu dieser Gehäuseseite entgegengesetzten Gehäuseseite, insbesondere an der Gehäuseoberseite angeordnet. Auf diese Weise werden die stromzuführende Hauptstromleitung und der Laststromkreis besonders deutlich räum- lieh getrennt.Also in the sense of a particularly simple and clear wiring of the switching device is preferably provided that the load connection and the Rückfüh- connection are arranged on a common side, in particular the housing bottom, so that both lines of the switching device associated load circuit on the same side of the housing with the switching device be contacted. In contrast, the feed connection is arranged in an advantageous development of this idea on a housing side opposite the housing side, in particular on the housing upper side. In this way, the current-supplying main power line and the load circuit are particularly clearly segregated leh.
In zweckmäßiger Ausgestaltung umfasst der Einspeisungsanschluss zusätzlich zu dem Koppelkontakt eine diesem parallel geschaltete Anschlussklemme zum Anschließen eines Leiters. Als Leiter ist hierbei - im Gegensatz zu der starren Stromsammeischiene - ein flexibler Draht- oder Litzenleiter bezeichnet.In an expedient embodiment, the feed connection comprises, in addition to the coupling contact, a connection terminal connected in parallel for connecting a conductor. As a conductor here - in contrast to the rigid busbars - a flexible wire or stranded conductor designated.
Zur Erhöhung der Bediensicherheit ist der oder jeder Gehäuseschlitz zweckmäßigerweise derart dimensioniert, dass er den zugeordneten Koppelkontakt fingersicher aufnimmt. Dies ermöglicht es insbesondere, das Schaltgerät in Einzelverdrahtung, d.h. ohne Einsatz einer Stromsammeischiene, zu verwenden, ohne den Gehäuseschlitz aus Sicherheitsgründen abdecken zu müssen. Die fingersichere Ausbildung des Gehäuseschlitzes ist dabei insbesondere dann vorteilhaft, wenn der Gehäuseschlitz an der in Einbauposition einfach zugänglichen Gehäusefrontseite angeordnet ist. In einer vorteilhaften Weiterentwicklung umfasst das Schaltgerät zusätzlich mindestens einen Signalanschluss, an dem ein Schaltsignal abgreifbar ist, das für den Schaltzustand der Schalteinrichtung charakteristisch ist, anhand dessen also der Schaltzustand der Schalteinrichtung ermittelbar ist. Als Schaltsignal kann ein (aktives) Strom- oder Spannungssignal ausgegeben werden, das z.B. aus dem durch die Schalteinrichtung fließenden Strom gespeist ist. Als Schaltsignal wird in diesem Fall aber ein Schwachstrom- bzw. Niederspannungssignal herangezogen, dessen elektrische Leistung die Leistung des Laststroms wesentlich unterschreitet. Bevorzugt ist das Schaltsignal aller- dings durch den (passiven) Schaltzustand eines Signalschalters vorgegeben, der mit dem Schaltzustand der Schalteinrichtung gekoppelt ist. In diesem Fall sind zweckmäßigerweise zwei mit dem Signalschalter verschaltete Signalanschlüsse vorgesehen. Der Signalanschluss bzw. mindestens einer der Signalanschlüsse umfasst in zweckmäßiger Ausbildung des Schaltgeräts wiederum einen Koppelkontakt zum Anschluss einer Sig- nalstromschiene, wobei dieser Koppelkontakt wiederum bevorzugt in einem zugeordneten Gehäuseschlitz angeordnet ist, der das Gehäuse in Reihenrichtung vollständig durchsetzt. Auch dieser Gehäuseschlitz ist bevorzugt fingersicher ausgebildet, insbesondere um im Falle eines fehlerhaften Stromüberschlags auf den Signalstromkreis ein Verletzungsrisiko für Benutzer auszuschließen. Zur Verbesserung der Bedienfreund- lichkeit sind auch der oder jeder Koppelkontakt des Signalanschlusses, und gegebenenfalls der zugeordnete Gehäuseschlitz, an der Gehäusefrontseite angeordnet. Die Signalanschlüsse sind im Gegensatz zu dem Einspeisungsanschluss, dem Lastan- schluss und dem Rückführungsanschluss bevorzugt auf elektrische Ströme mit geringer Leistung ausgelegt, die für den menschlichen Körper ungefährlich sind.To increase operating safety, the or each housing slot is expediently dimensioned such that it receives the associated coupling contact finger-safe. This makes it possible, in particular, to use the switching device in single wiring, ie without the use of a current busbar, without having to cover the housing slot for safety reasons. The finger-safe design of the housing slot is particularly advantageous if the housing slot is arranged on the housing in the easily accessible housing front side. In an advantageous further development, the switching device additionally comprises at least one signal terminal, on which a switching signal can be tapped, which is characteristic of the switching state of the switching device, based on which therefore the switching state of the switching device can be determined. As a switching signal, an (active) current or voltage signal can be output, which is fed, for example, from the current flowing through the switching device current. As a switching signal but in this case, a low-voltage or low-voltage signal is used, the electrical power is significantly less than the power of the load current. Preferably, however, the switching signal is predetermined by the (passive) switching state of a signal switch, which is coupled to the switching state of the switching device. In this case, two signal connections connected to the signal switch are expediently provided. The signal terminal or at least one of the signal terminals comprises in appropriate configuration of the switching device in turn a coupling contact for connecting a sig- nalstromschiene, said coupling contact is in turn preferably arranged in an associated housing slot, which completely passes through the housing in the row direction. Also, this housing slot is preferably formed finger-safe, in particular in order to exclude a risk of injury to users in the event of a faulty current flashover on the signal circuit. To improve the ease of use and the or each coupling contact of the signal terminal, and possibly the associated housing slot, are arranged on the housing front side. The signal terminals, unlike the feed terminal, the load terminal and the return terminal, are preferably designed for low power electrical currents that are harmless to the human body.
In Übereinstimmung mit der für Reiheneinbaugeräte typischen Bauform weist das Gehäuse vorzugsweise ein abgestuftes Profil auf, das einen vergleichsweise schmalen Gehäusekopf und eine demgegenüber verlängerte (und somit den Gehäusekopf überragende) Gehäusebasis umfasst. Der Gehäusekopf bildet hierbei einen frontseitigen Gehäuseabschnitt, während die Gehäusebasis einen rückseitigen Gehäuseabschnitt bildet. In Weiterbildung des erfindungsgemäßen Schaltgeräts sind dabei vorzugsweise der Einspeisungsanschluss und der Rückführungsanschluss in der Gehäusebasis angeordnet, während der Lastanschluss in dem Gehäusekopf angeordnet ist. Hierdurch ist auf vergleichsweise engem Raum eine einfache Verdrahtung des Schaltgeräts möglich. Insbesondere sind auf diese Weise im Montagezustand die mit dem Einspei- sungsanschluss und dem Rückführungsanschluss korrespondierenden Stromsammeischienen in der Gehäusebasis „aufgeräumt", ohne den Anschluss von Leitern an die Anschlüsse des Schaltgeräts zu behindern.In accordance with the typical design of DIN rail mounted devices, the housing preferably has a stepped profile that includes a comparatively narrow housing head and a housing base that is elongated (and thus overhanging the housing head). The housing head in this case forms a front housing section, while the housing base forms a rear housing section. In a further development of the switching device according to the invention, the feed connection and the return connection are preferably arranged in the housing base, while the load connection is arranged in the housing head. hereby a simple wiring of the switching device is possible in a comparatively small space. In particular, in this way, in the assembled state, the bus bars corresponding to the feed-in connection and the return connection are "tidied up" in the housing base, without hindering the connection of conductors to the connections of the switching device.
Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand einer Zeichnung näher erläutert. Darin zeigen:An embodiment of the invention will be explained in more detail with reference to a drawing. Show:
Fig. 1 in perspektivischer Ansicht ein einzelnes Schaltgerät mit einem Einspei- sungsanschluss, einem Lastanschluss, einem Rückführungsanschluss sowie zwei Signalanschlüssen,1 is a perspective view of a single switching device with a feed connection, a load connection, a return connection and two signal connections,
Fig. 2 in schematischer Darstellung der schaltungstechnische Aufbau desFig. 2 in a schematic representation of the circuitry construction of
Schaltgeräts gemäß Fig. 1 , Fig. 3 in Darstellung gemäß Fig. 1 vier aneinander gereihte Schaltgeräte gemäßSwitching device according to FIG. 1, FIG. 3 in illustration according to FIG. 1, four switching devices arranged one behind the other according to FIG
Fig. 1 sowie ein weiteres Schaltgerät ohne Signalanschlüsse,1 and another switching device without signal connections,
Fig. 4 in Darstellung gemäß Fig. 1 fünf aneinander gereihte Schaltgeräte gemäßFig. 4 in illustration of FIG. 1 five juxtaposed switching devices according to
Fig. 1 , deren Einspeisungsanschlüsse und Rückführungsanschlüsse durch jeweils eine Stromsammeischiene parallel geschaltet sind, und de- ren Signalanschlüsse durch Signalstromschienen in Serie geschaltet sind, und1, whose feed terminals and return terminals are connected in parallel by a current busbar in each case, and their signal terminals are connected in series by signal busbars, and
Fig. 5 in Darstellung gemäß Fig. 1 fünf aneinander gereihte Schaltgeräte, derenFig. 5 in illustration of FIG. 1 five juxtaposed switching devices whose
Einspeisungs- und Rückführungsanschlüsse durch jeweils eine Strom- sammelschiene parallel geschlossen sind, wobei in diesem Fall die Sig- nalanschlüsse der Schaltgeräte durch Signalstromschienen parallel geschaltet sind.Infeed and return connections are closed in parallel by a respective busbar, in which case the signal connections of the switching devices are connected in parallel by signal busbars.
Einander entsprechende Teile sind in allen Figuren stets mit gleichen Bezugszeichen versehen.Corresponding parts are always provided with the same reference numerals in all figures.
Das in Fig. 1 zunächst in der Ansicht von außen dargestellte Schaltgerät 1 umfasst ein Gehäuse 2 aus Isoliermaterial. Das Schaltgerät 1 ist als Reiheneinbaugerät ausgebildet und weist eine für solche Geräte typische, abgestufte Gehäuseform mit einem Gehäu- sekopf 3 und einer demgegenüber beidseitig verlängerten Gehäusebasis 4 auf. Die Gehäusebasis 4 bildet dabei einen an eine Gehäuserückseite 5 angrenzenden Gehäuseabschnitt, der Gehäusekopf 3 eine an eine Gehäusefrontseite 6 angrenzenden Gehäuseabschnitt.The switching device 1 shown initially in the view from the outside in FIG. 1 comprises a housing 2 made of insulating material. The switching device 1 is designed as a modular device and has a typical for such devices, stepped housing shape with a housing. Sekopf 3 and on the other hand extended on both sides housing base 4. The housing base 4 forms a housing section adjoining a housing rear side 5, the housing head 3 a housing section adjoining a housing front side 6.
Das Schaltgerät 1 ist für eine definierte Einbaustellung ausgelegt, in der das Gehäuse 2 mit der Gehäuserückseite 5 der Rückwand eines Schaltschrankes zugekehrt ist, während die Gehäusefrontseite 6 in Einbauposition bei Blick in den Schaltschrank einem Bediener zugewandt ist. Zur Montage weist das Schaltgerät 1 an der Gehäuserücksei- te 5 eine Aufrastnut 7 auf, mit welcher das Schaltgerät 1 auf eine (in der Darstellung gepunktet angedeutete) Tragschiene 8 aufschnappbar ist.The switching device 1 is designed for a defined mounting position, in which the housing 2 faces the rear side of the housing 5 of the rear wall of a control cabinet, while the housing front side 6 facing an operator in the installed position when looking into the cabinet. For mounting, the switching device 1 has a latching groove 7 on the housing rear side 5, with which the switching device 1 can be snapped onto a mounting rail 8 (indicated dotted in the illustration).
Die Profilachse der Tragschiene 8, und der mit dieser korrespondierenden Aufrastnut 7 definiert eine Reihenrichtung 9, entlang derer mehrere Schaltgeräte 1 - wie in den Fig. 3 bis 5 dargestellt - durch Aufschnappen auf die Tragschiene 8 zueinander fluchtend aufgereiht werden können.The profile axis of the support rail 8, and the corresponding Aufrastnut 7 defines a row direction 9, along which a plurality of switching devices 1 - as shown in FIGS. 3 to 5 - can be lined up by snapping onto the support rail 8 aligned.
Die zu der Reihenrichtung 9 senkrechten Seitenflächen des Gehäuses 2 sind als Gehäusestirnseiten 10 bezeichnet. Die zu den Gehäusestirnseiten 10, der Gehäusefront- seite 6 und der Gehäuserückseite 5 senkrechten Gehäuseseiten sind - entsprechend der bestimmungsgemäßen Einbaustellung des Schaltgeräts 1 - als Gehäuseoberseite 11 bzw. als Gehäuseunterseite 12 bezeichnet.The vertical to the row direction 9 side surfaces of the housing 2 are referred to as housing end faces 10. The housing sides perpendicular to the housing end faces 10, the housing front side 6 and the housing rear side 5 are designated as the housing upper side 11 or as the housing underside 12, in accordance with the intended installation position of the switchgear 1.
Zur Zuführung eines Stroms umfasst das Schaltgerät 1 einen Einspeisungsanschluss 13, der im Bereich der Gehäuseoberseite 11 angeordnet ist. Der Einspeisungsanschluss 13 umfasst eine als Schraubklemme ausgebildete Anschlussklemme 14, an der ein flexibler Draht- oder Litzenleiter zur Stromzuführung anschließbar ist. Der Einspeisungsanschluss 13 umfasst weiterhin einen der Anschlussklemme 14 parallel geschalteten Koppelkontakt 15, mit dem eine Stromsammeischiene 16 (Fig. 4 und 5) in Kontakt gebracht werden kann. Der Koppelkontakt 15 ist hierbei innerhalb eines Gehäuseschlitzes 17 angeordnet, der zu der Gehäusefrontseite 6 hin mündet, und der sich in Reihenrichtung 9 über die gesamte Gehäusebreite erstreckt und somit auch zu den Gehäu- sestirnseiten 10 hin offen ist. Der Gehäuseschlitz 17 ist dabei derart bemessen, dass die Stromsammeischiene 16 in ihn passgenau eindrückbar ist.For supplying a current, the switching device 1 comprises a feed terminal 13, which is arranged in the region of the housing upper side 11. The feed terminal 13 comprises a terminal 14 designed as a screw terminal, to which a flexible wire or stranded conductor for supplying power can be connected. The feed connection 13 further comprises a coupling contact 15 connected in parallel to the connection terminal 14, to which a current busbar 16 (FIGS. 4 and 5) can be brought into contact. The coupling contact 15 is in this case arranged within a housing slot 17, which opens to the housing front side 6, and which extends in the row direction 9 over the entire housing width and thus also to the housing. sestirnseiten 10 is open. The housing slot 17 is dimensioned such that the current busbar 16 can be pressed accurately into it.
Das Schaltgerät 1 umfasst weiterhin einen Lastausgang 18, an den ein eine Last 18a (Fig. 2,4) enthaltender Laststromkreis (bzw. Verbraucherstromkreis) 18b (Fig. 2,4) mit einer zugeordneten Zuführungsleitung 18c (Fig. 2,4) anschließbar ist. Der Lastausgang 18 umfasst zum Anschluss der Zuführungsleitung 18c eine von der Gehäuseunterseite 12 aus zugängliche Anschlussklemme 19, die ebenfalls als Schraubklemme ausgebildet ist.The switching device 1 further comprises a load output 18, to which a load circuit (or load circuit) 18b (FIG. 2) containing a load 18a (FIG. 2) can be connected to an associated supply line 18c (FIG is. The load output 18 includes for connection of the supply line 18c accessible from the housing bottom 12 from terminal 19, which is also designed as a screw.
Im Inneren des Gehäuses 2 sind der Einspeisungsanschluss 13 und der Lastanschluss 18 über eine (in Fig. 2 näher dargestellte) Schalteinrichtung 20 miteinander verschaltet. In dem dargestellten Ausführungsbeispiel hat die Schalteinrichtung 20 eine Schutzschalterfunktion, ist also dazu ausgebildet, den zwischen dem Einspeisungsanschluss 13 und dem Lastanschluss 18 gebildeten Strompfad im Falle eines Überstroms zu trennen. Die Schalteinrichtung 20 umfasst hierzu einen Schaltkontakt 21 sowie einen Überstromauslöser 22. Der Schaltkontakt 21 ist mit dem Überstromauslöser über eine Schaltmechanik 23 in Form eines Schaltschlosses gekoppelt, so dass der Überstromauslöser 22 im Falle eines Überstromes den Schaltkontakt 21 über die Schaltmechanik 23 öffnet. Der Überstromauslöser 22 basiert hierbei insbesondere gemäß üblicherInside the housing 2, the feed terminal 13 and the load terminal 18 are interconnected via a switching device 20 (shown in greater detail in FIG. 2). In the illustrated embodiment, the switching device 20 has a circuit breaker function, that is configured to separate the current path formed between the feed terminal 13 and the load terminal 18 in the event of an overcurrent. The switching device 20 comprises for this purpose a switching contact 21 and an overcurrent release 22. The switching contact 21 is coupled to the overcurrent release via a switching mechanism 23 in the form of a switching mechanism, so that the overcurrent release 22 opens the switching contact 21 via the switching mechanism 23 in the event of an overcurrent. The overcurrent release 22 is based here in particular according to the usual
Technik auf einem magnetischen, thermischen und/oder pneumatischen Wirkungsprinzip.Technology on a magnetic, thermal and / or pneumatic principle of action.
Die Schaltmechanik 23 ist ihrerseits mit einem Handbetätigungselement 24 - hier in Form eines Schiebe- oder Kipphebels - gekoppelt. Das Handbetätigungselement 24 ist an der Gehäusefrontseite 6 von außen zugänglich und ermöglicht, den Schaltkontakt 21 über die Schaltmechanik 23 manuell und reversibel zu öffnen und zu schließen.The switching mechanism 23 is in turn coupled to a manual operating element 24 - here in the form of a sliding or tilting lever. The manual operating element 24 is accessible from the outside on the housing front side 6 and makes it possible to manually and reversibly open and close the switching contact 21 via the switching mechanism 23.
Die Schalteinrichtung 20 mit dem dazu gehörigen Schaltkontakt 21 , Überstromauslöser 22, Schaltmechanik 23 und Handbetätigungselement 24 können auch durch ein elektronisches Schaltelement ersetzt sein. In das Schaltgerät 1 ist weiterhin ein Signalstromkreis 25 integriert. Der Signalstromkreis 25 umfasst zwei Signalkontakte 26 und 27 sowie einen diesen zwischengeschalteten Signalschalter 28. Jeder der Signalkon- takte 26 und 27 umfasst hierbei eine Anschlussklemme 29 bzw. 30 in Form einer Schraubklemme sowie einen jeweils parallel geschalteten Koppelkontakt 31 bzw. 32. Die Anschlussklemmen 29 und 30 sind hierbei zum Anschluss eines Leiters von der Gehäuseoberseite 11 aus zugänglich (so dass in der Darstellung gemäß Fig. 1 von die- sen Anschlussklemmen 29 und 30 lediglich die Aufnahmen für die Klemmschrauben sichtbar sind). Die Koppelkontakte 31 und 32 sind in (jeweils einem Koppelkontakt 31 ,32 zugeordneten) Gehäuseschlitzen 33,34 angeordnet, wobei sich jeder Gehäuseschlitz 33,34 wiederum in Reihenrichtung 9 über die gesamte Gehäusebreite erstreckt. Jeder der Gehäuseschlitze 33 und 34 dient zur Aufnahme einer Signalstromschie- ne 35,35' (wie in den Fig. 4 und 5 dargestellt).The switching device 20 with the associated switching contact 21, overcurrent release 22, switching mechanism 23 and manual operating element 24 may also be replaced by an electronic switching element. In the switching device 1, a signal circuit 25 is further integrated. The signal circuit 25 comprises two signal contacts 26 and 27 and a signal switch 28 interposed therebetween. Clocks 26 and 27 in this case comprises a connection terminal 29 or 30 in the form of a screw and a respective parallel coupling contact 31 and 32. The terminals 29 and 30 are in this case for connecting a conductor of the housing top side 11 accessible (so that in the illustration according to FIG. 1, of these terminals 29 and 30 only the receptacles for the clamping screws are visible). The coupling contacts 31 and 32 are arranged in (each a coupling contact 31, 32 associated) housing slots 33,34, wherein each housing slot 33,34 in turn extends in the row direction 9 over the entire housing width. Each of the housing slots 33 and 34 serves to receive a Signalstromschie- ne 35,35 '(as shown in Figs. 4 and 5).
Zusätzlich zu den beschriebenen Anschlüssen 13,18,26 und 27 umfasst das Schaltgerät 1 einen Rückführungsanschluss 36, der zum Anschluss einer Rückführungsleitung 36a (Fig. 2,4) des Laststromkreises 18b dient. Der Rückführungsanschluss 36 umfasst hierzu eine wiederum als Schraubklemme ausgebildete Anschlussklemme 37, die von der Gehäuseunterseite 12 aus zugänglich ist. Der Rückführungsanschluss 36 umfasst weiterhin einen gehäuseintern mit der Anschlussklemme 37 verbundenen Koppelkontakt 38. Der Koppelkontakt 38 ist in einem nahe der Gehäuseunterseite 12 befindlichen Gehäuseschlitz 39 angeordnet, der sich wiederum in Reihenrichtung 9 über die gesam- te Gehäusebreite erstreckt, und der sich zur Aufnahme einer mit dem Koppelkontakt 38 korrespondierenden Stromsammeischiene 40 (Fig. 4 und 5) zu der Gehäusefrontseite 6 hin öffnet.In addition to the described connections 13, 18, 26 and 27, the switching device 1 comprises a return connection 36, which serves to connect a return line 36 a (FIG. 2, 4) of the load circuit 18 b. For this purpose, the return connection 36 comprises a connecting terminal 37 again designed as a screw terminal, which is accessible from the housing underside 12. The feedback connection 36 furthermore comprises a coupling contact 38 connected inside the housing with the connection terminal 37. The coupling contact 38 is arranged in a housing slot 39 located near the housing underside 12, which in turn extends in the row direction 9 over the entire housing width, and which accommodates a housing opens with the coupling contact 38 corresponding current busbar 40 (Fig. 4 and 5) to the housing front side 6 out.
Insgesamt sind, wie Fig. 1 zu entnehmen ist, der Einspeisungsanschluss 13 und der Rückführungsanschluss 36 in der Gehäusebasis 4, der Lastanschluss 18 sowie die Signalanschlüsse 26 und 27 in dem Gehäusekopf 3 angeordnet, was eine übersichtliche und benutzerfreundliche Verdrahtung des Schaltgeräts 1 ermöglicht.Overall, as shown in FIG. 1, the feed terminal 13 and the return terminal 36 in the housing base 4, the load terminal 18 and the signal terminals 26 and 27 are arranged in the housing head 3, which allows a clear and user-friendly wiring of the switching device 1.
Fig. 3 zeigt mehrere aneinander gereihte Schaltgeräte 1 des vorstehend beschriebenen Typs sowie ein demgegenüber vereinfachtes Schaltgerät 1', bei dem der Signalstromkreis 25, und entsprechend die zugehörigen Signalanschlüsse 26 und 27, weggelassen sind. Das modifizierte Schaltgerät 1 ' kann insbesondere auch als (vergleichsweise preisgünstiges) Anschlussmodul zur Kontaktierung einer Reihe von Schaltgeräten 1 im Rahmen eines Stromverteilungssystems verwendet werden.Fig. 3 shows a plurality of juxtaposed switching devices 1 of the type described above and a contrast simplified switching device 1 ', in which the signal circuit 25, and accordingly the associated signal terminals 26 and 27, are omitted. The modified switching device 1 'can also be used as (comparatively low-cost) connection module for contacting a number of switching devices 1 are used in the context of a power distribution system.
Im Rahmen eines solchen Stromverteilungssystems, wie es in den Fig. 4 und 5 darges- teilt ist, werden die Einspeisungsanschlüsse 13 der aneinander gereihten Schaltgeräte 1 (bzw. 1') parallel geschaltet, indem die Stromsammeischiene 16 in die fluchtenden Gehäuseschlitze 17 der Schaltgeräte 1 (bzw. 1 ') eingedrückt, und so mit den Koppelkontakten 15 kontaktiert wird. Die Stromsammeischiene 16 ist hierbei hinsichtlich ihrer Länge derart bemessen, dass sie sich über die Gesamtbreite aller in das Stromertei- lungssystem zu integrierenden Schaltgeräte 1 (bzw. 1 ') erstreckt. Der Anschluss der somit parallel geschalteten Schaltgeräte 1 (bzw. 1 ') an eine externe Spannungsquelle erfolgt hierbei durch konventionelle Verdrahtung eines beliebigen Schaltgeräts 1 (bzw. 1 ') über dessen Anschlussklemme 14.In the context of such a power distribution system, as is shown in FIGS. 4 and 5, the supply terminals 13 of the series-connected switching devices 1 (or 1 ') are connected in parallel by the current busbar 16 into the aligned housing slots 17 of the switching devices 1 (or 1 ') pressed, and is contacted with the coupling contacts 15. The current busbar 16 in this case is dimensioned with regard to its length such that it extends over the total width of all switching devices 1 (or 1 ') to be integrated into the power distribution system. The connection of the thus connected in parallel switching devices 1 (or 1 ') to an external power source takes place here by conventional wiring of any switching device 1 (or 1') via its terminal 14th
Ebenso werden die Rückführungsanschlüsse 36 der aneinander gereihten Schaltgeräte 1 (bzw. 1 ') durch Eindrücken der Stromsammeischiene 40 in den Gehäuseschlitz 39 einander parallel geschaltet, wobei die Stromsammeischiene 40 oder die Anschlussklemme 37 mit einem elektrischen Rückführpotential, insbesondere Masse, verbunden werden. Jedem der Schaltgeräte 1 (bzw. 1') ist im Rahmen des Stromverteilungssys- tems bevorzugt ein Laststromkreis 18b zugeordnet. In Fig. 4 ist der Anschluss der Laststromkreise 18b beispielhaft für eines der Schaltgeräte 1 gezeigt. Optional ist - wie oben erwähnt - ein weiteres Schaltgerät 1 (bzw. 1 ') vorgesehen, das lediglich zur Kontaktierung der Stromsammeischienen 16 und 40 mit der externen Spannungsversorgung bzw. mit Masse dient, und dem daher kein eigener Laststromkreis zugeordnet ist. Die einzelnen Laststromkreise 18b werden das jeweils zugeordnete Schaltgerät 1 (bzw. 1 ') angeschlossen, indem die Zuführungsleitung 18c des jeweiligen Laststromkreises 18b mit dem Lastanschluss 18 des Schaltgeräts 1 (bzw. 1 '), und die Rückführleitung 36a des Laststromkreises 18b mit der Anschlussklemme 37 des Schaltgeräts 1 (bzw. 1') verbunden werden.Likewise, the return terminals 36 of the juxtaposed switching devices 1 (or 1 ') are connected in parallel by pressing the Stromammenischiene 40 in the housing slot 39, the Stromammenischiene 40 or the terminal 37 with an electrical return potential, in particular ground, are connected. Each of the switching devices 1 (or 1 ') is preferably assigned a load circuit 18b within the scope of the power distribution system. FIG. 4 shows the connection of the load circuits 18b by way of example for one of the switching devices 1. Optionally - as mentioned above - another switching device 1 (or 1 ') is provided, which serves only for contacting the bus bars 16 and 40 with the external power supply or ground, and therefore no separate load circuit is assigned. The individual load circuits 18b, the respectively associated switching device 1 (or 1 ') connected by the supply line 18c of the respective load circuit 18b to the load terminal 18 of the switching device 1 (or 1'), and the return line 36a of the load circuit 18b to the terminal 37 of the switching device 1 (or 1 ') are connected.
Durch unterschiedliche Beschaltung der Koppelkontakte 31 und 32 der Signalanschlüsse 26 bzw. 27 mit den Signalstromschienen 35 bzw. 35' können die Signalstromkreise 25 der aneinander gereihten Schaltgeräte 1 miteinander auf unterschiedliche Weise verschaltet werden. Fig. 4 zeigt diesbezüglich eine Konfiguration eines aus fünf Schaltgeräten 1 bestehenden Stromverteilungssystems, bei dem die Signalstromkreise 25 der Schaltgeräte 1 in Serienschaltung miteinander verschaltet sind. Fig. 5 zeigt eine alternative Konfiguration des Verteilungssystems, bei dem die Signalstromkreise 25 parallel geschaltet sind. Daneben sind beliebige Kombinationen von Parallel- und Reihenschaltungen der Signalstromkreise 25 möglich. Zudem können ein oder mehrere Signalstromkreise 25 auch über die Anschlussklemmen 29 und 30 einzelverdrahtet werden. By different wiring of the coupling contacts 31 and 32 of the signal terminals 26 and 27 with the signal busbars 35 and 35 ', the signal circuits 25 of the juxtaposed switching devices 1 with each other in different ways be interconnected. 4 shows in this respect a configuration of a power distribution system consisting of five switching devices 1, in which the signal circuits 25 of the switching devices 1 are connected in series with one another. Fig. 5 shows an alternative configuration of the distribution system in which the signal circuits 25 are connected in parallel. In addition, any combinations of parallel and series circuits of the signal circuits 25 are possible. In addition, one or more signal circuits 25 can also be individually wired via the connection terminals 29 and 30.
Bezugszeichenliste,1 ' SchaltgeratList of Reference Numerals, 1 'Schaltgerat
Gehäusecasing
Gehäusekopfhousing head
Gehäusebasishousing base
GehäuserückseiteCase back
GehäusefrontseiteHousing front side
AufrastnutAufrastnut
Tragschienerail
Reihenrichtung 0 Gehäusestirnseite 1 Gehäuseoberseite 2 Gehäuseunterseite 3 Einspeisungsanschluss 4 Anschlussklemme 5 Koppelkontakt 6 Stromsammeischiene 7 Gehäuseschlitz 8 Lastanschluss 8a Last 8b Laststromkreis 8c Zuführungsleitung 9 Anschlussklemme 0 Schalteinrichtung 1 Schaltkontakt 2 Überstromauslöser 3 SchaltmechanikRow direction 0 Housing face 1 Housing top 2 Housing underside 3 Infeed connection 4 Connection terminal 5 Coupling contact 6 Current busbar 7 Housing slot 8 Load connection 8a Load 8b Load circuit 8c Supply line 9 Terminal 0 Switching device 1 Switching contact 2 Overcurrent release 3 Switching mechanism
Handbetätigungselement 5 SignalstromkreisManual operating element 5 signal circuit
Signalanschluss 7 SignalanschlussSignal connection 7 Signal connection
Signalschaltersignal switches
Anschlussklemme Anschlussklemme Koppelkontakt Koppelkontakt Gehäuseschlitz Gehäuseschlitz ,35' Signalstromschiene Rückführungsanschlussa Rückführungsleitung Anschlussklemme Koppelkontakt Gehäuseschlitz Stromsammeischiene terminal Connection terminal Coupling contact Coupling contact Housing slot Housing slot, 35 'Signal busbar Return connectiona Return line Connection terminal Coupling contact Housing slot Current busbar

Claims

Ansprüche claims
1. Elektrisches Schaltgerät (1 ,1 '). insbesondere in Form eines Reiheneinbaugerätes, mit einem Gehäuse (2) sowie, darin aufgenommen, - einer Schalteinrichtung (20) zur Unterbrechung eines Stromkreises,1. Electrical switching device (1, 1 '). in particular in the form of a rail-mounted device, with a housing (2) and, accommodated therein, - a switching device (20) for interrupting a circuit,
- einem Einspeisungsanschluss (13) zur Zuführung eines Laststromes an die Schalteinrichtung (20), der einen ersten Koppelkontakt (15) zur Kontaktierung einer Stromsammeischiene (16) umfasst,- A feed terminal (13) for supplying a load current to the switching device (20), which comprises a first coupling contact (15) for contacting a current busbar (16),
- einem Lastanschluss (18) zur Kontaktierung der Zuführungsleitung (18c) eines Laststromkreises (18b) mit der Schalteinrichtung (20), und- A load terminal (18) for contacting the supply line (18c) of a load circuit (18b) with the switching device (20), and
- einem Rückführungsanschluss (36) der eine Anschlussklemme (37) zur Kontaktierung der Rückführungsleitung (36a) des Laststromkreises (18b) sowie einen mit der Anschlussklemme (37) gehäuseintern verbundenen zweiten Koppelkontakt (38) zur Kontaktierung einer zweiten Stromsammeischiene (40) um- fasst.- A feedback terminal (36) of a terminal (37) for contacting the return line (36 a) of the load circuit (18 b) and a housing (28) internally connected to the second terminal coupling contact (38) for contacting a second current busbar (40) ,
2. Schaltgerät (1 ,1 ') nach Anspruch 1 , dadurch gekennzeichnet, dass mindestens einer der Koppelkontakte (15,38) in einem zugeordneten Ge- häuseschlitz (17,39) angeordnet ist, der das Gehäuse (2) in Reihenrichtung (9) vollständig durchsetzt.2. Switching device (1, 1 ') according to claim 1, characterized in that at least one of the coupling contacts (15,38) in an associated housing slot (17,39) is arranged, the housing (2) in the row direction (9 ) completely interspersed.
3. Schaltgerät (1 ,1 ') nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass mindestens einer der Koppelkontakte (15,38) an einer Gehäusefrontseite (6) angeordnet ist.3. switching device (1, 1 ') according to claim 1 or 2, characterized in that at least one of the coupling contacts (15,38) on a housing front side (6) is arranged.
4. Schaltgerät (1 ,1 ') nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Lastanschluss (18) und der Rückführungsanschluss (36) an einer gemeinsamen Gehäuseseite (12) angeordnet sind. 4. Switching device (1, 1 ') according to one of claims 1 to 3, characterized in that the load connection (18) and the return connection (36) are arranged on a common housing side (12).
5. Schaltgerät (1 ,1 ') nach Anspruch 4, dadurch gekennzeichnet, dass der Einspeisungsanschlusses (13) einerseits und der Rückführungsan- s Schluss (36) sowie der Lastanschluss (18) andererseits an zueinander entgegengesetzten Gehäuseseiten (11 ,12) angeordnet sind.5. Switching device (1, 1 ') according to claim 4, characterized in that the feed terminal (13) on the one hand and the Rückführungsan- s conclusion (36) and the load connection (18) on the other hand on mutually opposite housing sides (11, 12) are arranged ,
6. Schaltgerät (1 ,1 ') nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, o dass der Einspeisungsanschluss (13) eine dem ersten Koppelkontakt (15) parallel geschaltete Anschlussklemme (14) zum Anschließen eines Leiters aufweist.6. switching device (1, 1 ') according to one of claims 1 to 5, characterized in that the feed connection (13) has a first coupling contact (15) connected in parallel terminal (14) for connecting a conductor.
7. Schaltgerät (1 ,1 ') nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, 5 dass der oder jeder Gehäuseschlitz (17,39) derart dimensioniert ist, dass er den zugeordneten Koppelkontakt (15,38) fingersicher aufnimmt.7. switching device (1, 1 ') according to one of claims 2 to 6, characterized in that the 5 or each housing slot (17, 29) is dimensioned such that it receives the associated coupling contact (15, 38) in a finger-safe manner.
8. Schaltgerät (1 ) nach einem der Ansprüche 1 bis 7, gekennzeichnet durch 0 mindestens einen Signalanschluss (26,27), an dem ein für den Schaltzustand der8. Switching device (1) according to one of claims 1 to 7, characterized by 0 at least one signal terminal (26,27) on which a for the switching state of
Schalteinrichtung (20) charakteristisches Schaltsignal abgreifbar ist.Switching device (20) characteristic switching signal can be tapped.
9. Schaltgerät (1 ) nach Anspruch 8, dadurch gekennzeichnet, 5 dass der Signalanschluss (26,27) einen Koppelkontakt (31 ,32) zum Anschluss einer Signalstromschiene (35,35') aufweist.9. Switching device (1) according to claim 8, characterized in that the signal connection (26, 27) has a coupling contact (31, 32) for connecting a signal current rail (35, 35 ').
10. Schaltgerät (1 ) nach Anspruch 9, dadurch gekennzeichnet, o dass der Koppelkontakt (31 ,32) des Signalanschlusses (26,27) in einem zugeordneten Gehäuseschlitz (33,34) angeordnet ist, der das Gehäuse (2) in Reihenrichtung (9) vollständig durchsetzt. 10. Switching device (1) according to claim 9, characterized in that the coupling contact (31, 32) of the signal terminal (26, 27) is arranged in an assigned housing slot (33, 34) which connects the housing (2) in the row direction ( 9) completely interspersed.
11. Schaltgerät (1 ) nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass der Koppelkontakt (31 ,32) des Signalanschlusses (26,27) an einer Gehäusefrontseite (6) angeordnet ist.11. Switching device (1) according to claim 9 or 10, characterized in that the coupling contact (31, 32) of the signal terminal (26,27) on a housing front side (6) is arranged.
12. Schaltgerät (1 ,1') nach einem der Ansprüche 1 bis 11 , dadurch gekennzeichnet, dass das Gehäuse (2) ein abgestuftes Profil aufweist, mit einem Gehäusekopf (3), der an eine Gehäusefrontseite (6) angrenzt, und mit einer den Gehäusekopf (3) überragenden Gehäusebasis (4), die an eine Gehäuserückseite (5) angrenzt, wobei der Einspeisungsanschluss (13) und der Rückführungsanschluss (36) in der Gehäusebasis (4), und der Lastanschluss (18) in dem Gehäusekopf (3) angeordnet sind.12. Switching device (1, 1 ') according to one of claims 1 to 11, characterized in that the housing (2) has a stepped profile, with a housing head (3) adjacent to a housing front side (6), and with a housing base (4) projecting above the housing head (3), which adjoins a housing rear side (5), wherein the feed connection (13) and the return connection (36) in the housing base (4), and the load connection (18) in the housing head (3 ) are arranged.
13. Stromverteilungssystem, bei dem mindestens zwei Schaltgeräte (1 ,1') nach einem der Ansprüche 1 bis 12 in Reihenrichtung (9) aneinandergereiht sind, bei dem die Koppelkontakte (15) der Einspeisungsanschlüsse (13) mittels der ersten Strom- sammelschiene (16) kurzgeschlossen sind, und bei dem die Koppelkontakte (38) der Rückführungsanschlüsse (36) mittels der zweiten Stromsammeischiene (40) kurzgeschlossen sind, wobei an den Lastanschluss (18) jedes dieser Schaltgeräte13. Power distribution system, in which at least two switching devices (1, 1 ') according to one of claims 1 to 12 in the row direction (9) are strung together, wherein the coupling contacts (15) of the feed terminals (13) by means of the first current busbar (16 ) are short-circuited, and in which the coupling contacts (38) of the return terminals (36) are short-circuited by means of the second current busbar (40), wherein to the load terminal (18) of each of these switching devices
(1 ,1 ') jeweils die Zuführungsleitung (18c) eines mit diesem Schaltgerät (1 ,1 ') korrespondierenden Laststromkreises (18b) angeschlossenen ist, und wobei an die Anschlussklemme (37) des Rückführungsanschlusses (36) dieses Schaltgerätes (1 ,1 ') jeweils die Rückführungsleitung (36a) des korrespondierenden Laststrom- kreises (18b) angeschlossen ist. (1, 1 ') in each case the supply line (18c) of a load circuit (18b) corresponding to this switching device (1, 1') is connected, and wherein the terminal (37) of the return connection (36) of this switching device (1, 1 ' ) in each case the return line (36a) of the corresponding load circuit (18b) is connected.
EP20080735246 2007-06-15 2008-04-15 Switching device Active EP2156456B1 (en)

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CA2689097C (en) 2014-08-19
WO2008151690A1 (en) 2008-12-18

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