EP0310943A2 - Electric switch gear - Google Patents

Electric switch gear Download PDF

Info

Publication number
EP0310943A2
EP0310943A2 EP88116084A EP88116084A EP0310943A2 EP 0310943 A2 EP0310943 A2 EP 0310943A2 EP 88116084 A EP88116084 A EP 88116084A EP 88116084 A EP88116084 A EP 88116084A EP 0310943 A2 EP0310943 A2 EP 0310943A2
Authority
EP
European Patent Office
Prior art keywords
release
lever
residual current
switching mechanism
trigger
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
EP88116084A
Other languages
German (de)
French (fr)
Other versions
EP0310943A3 (en
EP0310943B1 (en
Inventor
Hermann Schmitt
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.)
ABB AG Germany
ABB AB
Original Assignee
Asea Brown Boveri AG Germany
Asea Brown Boveri AB
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 Asea Brown Boveri AG Germany, Asea Brown Boveri AB filed Critical Asea Brown Boveri AG Germany
Priority to AT88116084T priority Critical patent/ATE103416T1/en
Publication of EP0310943A2 publication Critical patent/EP0310943A2/en
Publication of EP0310943A3 publication Critical patent/EP0310943A3/en
Application granted granted Critical
Publication of EP0310943B1 publication Critical patent/EP0310943B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being unbalance of two or more currents or voltages

Definitions

  • the invention relates to an electrical switching device for snapping onto profile mounting rails, each with a single-pole circuit breaker and residual current circuit breaker, which are arranged in separate but interconnected housings and are provided with release means for actuating movable contact pieces which form contact points with fixed contact pieces, and with manual actuators, which allow manual actuation of the movable contact pieces via at least one switching mechanism.
  • circuit breakers are usually provided for each circuit to be protected, the phases of which have a common one Residual current circuit breakers are directed to shutdown when residual currents occur.
  • Residual current circuit breakers are directed to shutdown when residual currents occur.
  • a separate earth leakage circuit breaker detects the phases of the circuit in question and immediately interrupts the circuit in the event of a response, ie when a leakage current occurs.
  • the invention has for its object to provide an electrical switching device of the type mentioned, which takes up as little space as possible and is inexpensive to manufacture due to its simple design.
  • the residual current circuit breaker as well as the circuit breaker are each arranged in a housing with a module width (17.5 mm), and each have a main switch mechanism connected by means of a coupling, which actuates the movable contact pieces, that the Residual current circuit breaker also has an auxiliary switching mechanism, which with a The residual current release works together to transmit the release pulse from a release plunger to the main switchgear, thereby releasing its latch.
  • the inventive provision of the residual current circuit breaker in a housing with the width of a conventional switch module (17.5 mm) is made possible by the fact that, compared to the known residual current circuit breakers, a particularly compact residual current release is used, the external dimensions of which allow it to be accommodated in such a housing.
  • the residual current releases previously used in conventional residual current circuit breakers each have larger dimensions, which do not allow the provision of such a narrow housing for accommodating all the necessary switch components.
  • the spatial size of the known residual current release is related to the release force required to actuate the switch contacts. Instead of an appropriately large-sized residual current release, another way is taken in the invention to achieve the opening of the contact points without loss of the opening speed of the contact pieces.
  • the size and thus the triggering force of the residual current release is compensated for in accordance with the invention in that an auxiliary switching mechanism is connected between the trigger and the main switching mechanism, which picks up the pulse of the triggering plunger of the residual current trigger which is actuated in response and transmits it increasingly to the main switching mechanism.
  • the auxiliary switching mechanism is provided with a release lever which supports a pawl which is acted upon by an energy store and which works together with a ratchet lever of the main switching mechanism by means of a transmission lever.
  • the release lever is designed as a rocker that can be pivoted about a pivot point.
  • the shorter lever arm of the switching or release rocker works together with the pawl, while its longer lever arm can be acted on by the release plunger of the residual current device.
  • the auxiliary switching mechanism has a return spring with overpressure for resetting the tripping cam of the residual current release. With the aid of this return spring, the release plunger and with it a movable armature arranged in the residual current release can be reset to its initial position after the release has taken place.
  • the same switching mechanism as is used in the line protection pole is provided for the main switching mechanism of the fault current pole.
  • auxiliary switch together with the residual current release close to the main switch so that there is enough space in the housing of the residual current circuit breaker to accommodate the evaluation unit as well as the contact point and the arc extinguishing device assigned to it is.
  • auxiliary switching mechanism it can further be provided to arrange the few individual parts of the auxiliary switching mechanism together with the residual current release on a common circuit board, which simplifies the assembly of the tripping unit and increases its functional reliability.
  • auxiliary switching mechanism it is also possible to fix the individual aforementioned parts of the auxiliary switching mechanism as well as the residual current release with the help of projections, pins and bearings which are molded onto the housing wall. This variant is supported by the possibility of producing such a housing in one operation as an injection molded part.
  • a switching device 10 which is composed of one circuit breaker 12 and one residual current circuit breaker 14, which are arranged in separate module-like housings 13, 15 arranged side by side.
  • the two housings 13, 15 are almost identical on the outside in terms of their outer dimensions - the thickness of the housing corresponds to the specified module size of 17.5 mm - and also in terms of their shape, with the exception of a test button 16, by means of which the fault current pole 14 functions is verifiable.
  • both individual switches 12, 14 each have actuating terminals, not shown, which can be actuated by actuating openings 18 and which can be reached via supply openings 20 for the connection of supply and outgoing conductors.
  • the switching device 10 On its front side, which points upwards in FIG. 1, the switching device 10 according to the invention has two switching handles 22, which are coupled to one another by means of a connecting part 23 placed thereon, as a manual actuating element with which the contact points of the switching device 10, not shown in this illustration, can be actuated manually .
  • the switching device 10 On its rear side, which points downward in FIG. 1, the switching device 10 has a recess 24, which serves to receive a mounting rail, not shown, preferably a top-hat mounting rail.
  • the recess 24 open towards the flat sides is bounded on the one hand towards the narrow sides by a fixed latching lug 26 which serves to support an edge of the mounting rail.
  • the recess 24 is delimited by a transverse edge 25 which is penetrated in a known manner by a movable locking slide 28 which engages behind the other edge of the mounting rail.
  • a movable locking slide 28 which engages behind the other edge of the mounting rail.
  • the switching device 10 as already mentioned, composed of two individual switches 12, 14 is held together by connecting elements 17 and thus forms a unitary block, which is additionally provided by a coupling part (not shown in this illustration) which serves for the mechanical coupling of the switching elements of the two individual switches 12, 14. is also standardized in its function.
  • the individual switches 12, 14 combined to form the switching device 10 according to the invention each have a main switching mechanism in the interior of their housings 13, 15, which is connected on the one hand to the switching handle 22 and on the other hand for actuating a contact point likewise provided in each individual switch 12, 14, each of which consists of a movable and a fixed contact piece is formed.
  • Such a main switching mechanism is known from EP-B1 0 144 799, which relates to a circuit breaker as used in the invention.
  • Such a main switching mechanism is also provided in the residual current protection pole 14 of the switching device 10, which is also connected on the one hand to the manual control handle 22 and on the other hand is acted upon by an auxiliary switching mechanism 30 explained in FIGS. 2 to 5.
  • FIGS. 2 to 5 show individual switching positions of the auxiliary switching mechanism 30 in a schematic representation.
  • FIG. 2 shows the switch-on position of the residual current protection pole 14, the contact point 31 of which is formed from a movable contact piece 30 and a fixed contact piece 32, which is only symbolically indicated, is closed.
  • the movable contact piece 30 is fastened to a contact arm 34 which is pivotally mounted about a pivot point 35. Above the fulcrum 35 of the contact arm 34, i.e. H.
  • a spring 36 is arranged, which is supported on the one hand on the housing 15 and on the other hand on the lever arm 341 of the contact arm 34.
  • a switching rod 38 is articulated, the other end of which is connected to a ratchet lever 40, where it is guided in an elongated hole 401.
  • the pawl lever 40 has a detent 402, which is supported in a recess 421 of a release lever 42.
  • the trigger lever 42 is pivotally guided at one end on an axis of rotation 43 and acted upon by a torsion spring, not shown, in the clockwise direction.
  • the axis of rotation 43 also serves to mount the control handle 22, which is not shown in this illustration and which is connected in an articulated manner to the joint 381 of the shift rod 38, which is guided in the elongated hole 401, via a connecting lever, also not shown.
  • the previously mentioned and described parts in FIG. 2 belong to the main switching mechanism already mentioned. These parts were addressed in so far as they interact in interaction with the auxiliary switching device 44, which will now be described.
  • auxiliary switching mechanism 44 which enables the invention, which has a rocker switch 46 with a pivot point 45, an energy accumulator 48 with a pivot point 47 and a latching lever 50 also with the fulcrum 47, a release rod 52 which is guided in an articulated manner in a fulcrum 51 in the latching lever 50, and a return spring 54 which has a fulcrum 53, and a return spring 56 which acts on the short lever arm 461 of the release rocker 46 in a clockwise direction .
  • a residual current release 60 with a release plunger 61 is arranged directly adjacent to the auxiliary switching mechanism 44.
  • both the main switching mechanism and the auxiliary switching mechanism 44 are in the equilibrium of the forces.
  • the contact arm 34 of the movable contact piece 30 is supported on the pawl lever 40 via the switching rod 38. Due to the special position of the pawl lever 40 shown in FIG. 2, at which its pivot point 41, which is partially covered by the pawl lever 50, below the connecting straight line from the support edge 421 of the release lever 42 to the other articulation point 382 of the switching rod 38 arranged in the contact arm 34 lies, the hinge point 381 is fixed to the end of the elongated hole 401 facing away from the locking lug 402. As already mentioned, the pawl lever 40 is supported on the support edge 421 in the release lever 42 due to the action of a spring with its detent 402.
  • the auxiliary switching mechanism 44 is also in equilibrium in the illustration shown in FIG. 2.
  • the short lever arm 461 of the trigger rocker 46 is pressed by the spring 56 into the latching lever 50, so that a pawl 501 formed thereon is supported on the end face of the trigger rocker 46.
  • the energy accumulator 48 which is designed as a torsion spring, is supported with its one lever arm on the housing 15 or on the guide of the auxiliary switching mechanism 44 and with its other one on the pivot pin 51 formed on the latching lever 50, to which the trigger rod 52 is articulated.
  • FIG. 3 shows an intermediate position between the on and the off position of the switching system of the residual current protection pole 14 formed from the main switching mechanism and auxiliary switching mechanism 44, in which the residual current release 60 was activated as a result of the occurrence of a residual current and its switching plunger 61 has pivoted the rocker switch 46 counterclockwise from its normal position.
  • the short lever arm 461 of the trigger rocker 46 pivots counterclockwise, so that the pawl 501 of the latch lever 50 loses its support and also pivots counterclockwise under the action of the energy accumulator 48 about the axis of rotation 47.
  • the return spring 56 is tensioned.
  • FIG. 4 shows a further intermediate position of the previously described switching arrangement.
  • the pawl lever 40 has carried out a pivoting movement of approximately 30 °.
  • the shift rod 38 can slide to the right in the direction of the latch 402 of the ratchet lever 40 with its pivot point 381 in the elongated hole 401 of the ratchet lever 40, this movement being supported by the spring 36 which acts on the upper lever arm 341 of the contact arm 34.
  • the contact arm 34 pivots clockwise about the axis of rotation 35, as a result of which the movable contact piece 30 lifts off the fixed contact piece 32 and the contact point 31 is open.
  • the lever arm 341 of the contact arm 34 presses with its end designed as a shoulder 342 against the latching lever 40, which in turn carries out a pivoting movement in a clockwise direction about the pivot axis 47.
  • the latch lever 40 When it pivots clockwise around its pivot point 41, which is covered by the latch lever 50 in FIG. 4, the latch lever 40, with its free end, which carries the latch 402, acts on the return spring 54 in such a way that it pivots about the fulcrum 53 the release plunger 61 of the residual current release 60 returns to its rest position.
  • the return spring 54 is designed as a resilient lever, the embodiment shown in the example offering itself as a fork lever.
  • the resilient resilience is necessary to ensure that the movable armature connected to the trigger plunger in the residual current release 60 actually rests in its rest position on the magnetic yoke of the residual current release and thus assumes its rest position.
  • the resilient flexibility of the return spring 54 allows a certain overpressure, which at the same time compensates for manufacturing or. tolerances due to wear.
  • FIG. 5 shows the switch-off position of the fault current pole 14, in which the movable contact piece 30 is lifted off the fixed contact piece 32, but the auxiliary switching mechanism 44 is already fully cocked again.
  • the shoulder 342 of the contact arm 34 is still in contact with the latching lever 50 and acts on it in a clockwise direction, so that its pawl 501 is at a certain distance from the end face of the rocker switch 46.
  • the free end of the trigger rod 52 is not directly on the trigger lever 42 but on an extension 422, which serves to guide the trigger rod 52.
  • the detent 402 of the pawl lever 40 has again taken its place in the recess with the supporting edge 421 in the release lever 42. Only the shift rod 38 lies with its articulation point 381 within the elongated hole 401 above the position which it assumes in the switched-on state.
  • the following summary is intended to illustrate the function of the auxiliary switching mechanism 44 used in the switching device 10 according to the invention in its residual current protective pole 14 with a compact residual current release 60.
  • the residual current protection pole 14 of the switching device 10 according to the invention has a main switching mechanism that is identical to that of the adjacent circuit breaker 12. While in the circuit breaker for actuation, d. H.
  • an overcurrent and a short-circuit current release are provided in a known manner, the triggering forces of which are sufficient to trigger the switching mechanism which is acted upon by a strong energy accumulator for the purpose of quick opening, such a space is not located in the residual current protection pole 14 of the switching device 10 because of the reasons mentioned at the beginning available, but only a residual current release 60 adapted to the module dimensions can be used. Due to its size, however, this residual current release 60 is not able to release enough energy to trigger the main switching mechanism in a manner comparable to that of the circuit breaker 12.
  • auxiliary switching mechanism 44 which serves to amplify the low tripping force of the residual current release 60 almost without delay and to transmit it to the main switching mechanism in response to triggering it.
  • the invention makes use of the interaction of lever arms and energy stores.
  • the trigger rocker 46 has a long and a short lever arm 461 and can be pivoted about the pivot point 45.
  • the trigger plunger 61 of the residual current release 60 acts on the long lever arm of the trigger rocker 46 in such a way that it carries out a pivoting movement counterclockwise about the axis of rotation 45 and thereby the short lever arm 461 loses its support function for the latch lever 50, which in turn is acted upon by an energy accumulator 48.
  • the latch lever 50 executes a pivoting movement in the counterclockwise direction due to the action by the energy store 48 and in this case presses the release lever 42 of the main switching mechanism out of its rest position via a release rod 52, so that the latch lever 40 supported therein is unlatched and, following the action by a spring, likewise pivots clockwise.
  • the hinge point 381 of the shift rod 38 fixed up to that point in the elongated hole 401 can slide therein guided by the elongated hole 401.
  • the movable contact piece 30, which is attached to the contact arm 34 lifts off from the fixed contact piece 32, so that the contact point 31 of the residual current protection pole 14 is open.
  • axis of rotation 43 of the release lever 42 also represents the axis of rotation for the manual control handle 22, which couples the two main switching mechanisms via the connecting part 23, so that manual actuation of the contact points is also possible.
  • the residual current protection pole 14 has a test button 16, by means of which a residual current signal can be artificially generated, which leads to the response of the residual current release, which likewise triggers the switching mechanism in the manner described above.
  • the residual current protection pole 14 is connected to the adjacent circuit breaker 12 via a coupling part (not shown in more detail), which is used to trigger the respective other switch pole in the event of the tripping of one switch pole, so that in every response, be it an Uber or short circuit - or fault current, both individual switches 12, 14 are triggered, so that the circuit protected by the switching device 10 according to the invention is switched off.

Abstract

Electrical switchgear for simultaneous protection against excess currents, short-circuit currents and fault currents in individual circuits require the simultaneous use of a line circuit breaker and of a fault current circuit breaker. Such known switchgears, termed line and fault current circuit breakers, occupy a comparatively large amount of space in the distribution units because of the large space requirement of the fault current circuit breaker. The object of the invention is thus to develop switchgear which requires less space. To achieve this object it is proposed that the fault current protection pole of the single-pole switchgear also be arranged in a housing of modular construction, an auxiliary switch mechanism being connected between the fault current trip device (60) and the main switch mechanism, to compensate for the reduced tripping force of the fault current trip device (60), whose dimensions are limited, which auxiliary switch mechanism amplifies the trip pulse transmitted by a trip cam (61) of the fault current trip device (60) and thus leads to unlatching of the main switch mechanism. The principle of the construction of the auxiliary switch mechanism (44) is shown in a schematic representation, the sequence of the switch action being explained by instantaneous recordings of intermediate positions. <IMAGE>

Description

Die Erfindung betrifft ein elektrisches Schaltgerät zum Aufschnappen auf Profiltragschienen mit je einem einpo­ligen Leitungsschutzschalter und Fehlerstromschutzschal­ter, die in getrennten, jedoch miteinander verbundenen Gehäusen angeordnet und mit Auslösemitteln zur Betäti­gung von beweglichen Kontaktstücken, die mit festen Kon­taktstücken Kontaktstellen bilden, versehen sind, sowie mit Handbetätigungsorganen, die über wenigstens ein Schaltwerk die manuelle Betätigung der beweglichen Kon­taktstücke gestatten.The invention relates to an electrical switching device for snapping onto profile mounting rails, each with a single-pole circuit breaker and residual current circuit breaker, which are arranged in separate but interconnected housings and are provided with release means for actuating movable contact pieces which form contact points with fixed contact pieces, and with manual actuators, which allow manual actuation of the movable contact pieces via at least one switching mechanism.

Elektrische Schaltgeräte zum Aufschnappen auf Profil­tragschienen kommen vielfach in Niederspannungsinstalla­tionsverteilungen zum Einsatz und dienen dort zur Absi­cherung einzelner Stromkreise. Hierbei sind üblicherwei­se für jeden abzusichernden Stromkreis Leitungsschutz­schalter vorgesehen, deren Phasen über einen gemeinsamen Fehlerstromschutzschalter zwecks Abschaltung beim Auf­treten von Fehlerströmen geleitet sind. In Einzelfällen kann es hierbei erforderlich sein, daß einzelne Strom­kreise separat sowohl gegen Uber- und Kurzschlußströme als auch gegen Fehlerströme abgesichert sind. In derar­tigen Fällen ist vorgesehen, daß ein separater Fehler­stromschutzschalter die Phasen des betreffenden Strom­kreises erfaßt und im Ansprechfalle, d. h. bei Auftreten eines Fehlerstromes, unverzüglich den Stromkreis unter­bricht.Electrical switching devices for snapping onto mounting rails are often used in low-voltage installation distributions and are used to protect individual circuits. In this case, circuit breakers are usually provided for each circuit to be protected, the phases of which have a common one Residual current circuit breakers are directed to shutdown when residual currents occur. In individual cases it may be necessary for individual circuits to be separately protected against overcurrent and short-circuit currents as well as against fault currents. In such cases, it is provided that a separate earth leakage circuit breaker detects the phases of the circuit in question and immediately interrupts the circuit in the event of a response, ie when a leakage current occurs.

Der verfügbare Raum in Niederspannungsverteilungen, ins­besondere in Zählerplätzen, ist häufig knapp und erfor­dert daher eine bestmögliche Raumausnutzung. Bekannte, zum Aufschnappen auf Tragschienen vorgesehene Fehler­stromschutzschalter (DE-OS 25 08 428 ), die einpolig oder mehrpolig vorgesehen sein können, weisen Gehäuseabmes­sungen auf, für die an der Tragschiene Platz freizuhal­ten ist, der normalerweise für wenigstens zwei übliche Reiheneinbaugeräte in modularer Schmalbauweise, z. B. Leitungsschutzschalter (EP-B1 0 144 799), ausreicht.The space available in low-voltage distributions, especially in meter stations, is often scarce and therefore requires the best possible use of space. Known, for snapping on mounting rails residual current circuit breaker (DE-OS 25 08 428), which can be provided single-pole or multi-pole, have housing dimensions for which space is to be kept free on the mounting rail, which is normally for at least two conventional modular devices in a narrow design, e.g. . B. circuit breaker (EP-B1 0 144 799) is sufficient.

Ausgehend vom vorgenannten Stand der Technik hat die Er­findung die Aufgabe ein elektrisches Schaltgerät der eingangs genannten Art zu schaffen, welches möglichst wenig Platz beansprucht und aufgrund seiner einfachen Gestaltung kostengünstig herstellbar ist.Starting from the aforementioned prior art, the invention has for its object to provide an electrical switching device of the type mentioned, which takes up as little space as possible and is inexpensive to manufacture due to its simple design.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Fehlerstromschutzschalter wie auch der Leitungs­schutzschalter jeweils in einem Gehäuse mit einer Modul­breite (17,5 mm) angeordnet sind, und jeweils ein mit­tels einer Kupplung verbundenes, gleichgestaltetes Hauptschaltwerk besitzen, das die beweglichen Kontakt­stücke betätigt, daß der Fehlerstromschutzschalter zu­sätzlich ein Hilfsschaltwerk besitzt, welches mit einem Fehlerstromauslöser zusammenarbeitet dessen von einem Auslösestößel herrührenden Auslöseimpuls verstärkt auf das Hauptschaltwerk überträgt und dabei dessen Verklin­kung löst.This object is achieved in that the residual current circuit breaker as well as the circuit breaker are each arranged in a housing with a module width (17.5 mm), and each have a main switch mechanism connected by means of a coupling, which actuates the movable contact pieces, that the Residual current circuit breaker also has an auxiliary switching mechanism, which with a The residual current release works together to transmit the release pulse from a release plunger to the main switchgear, thereby releasing its latch.

Mit Hilfe der vorhandenen Kupplung zwischen den beiden Hauptschaltwerken des Leitungsschutzschalter und des Fehlerstromschutzschalters wird mit Auslösung des Feh­lerstrompoles gleichzeitig auch der benachbarte Lei­tungsschutzschalterpol beaufschlagt und dessen Kontakt­stelle geöffnet.With the help of the existing coupling between the two main switching mechanisms of the miniature circuit breaker and the residual current circuit breaker, when the residual current pole is triggered, the adjacent circuit breaker pole is also acted upon and its contact point is opened.

Die erfindungsgemäß vorgesehene Unterbringung des Feh­lerstromschutzschalters in einem Gehäuse mit der Breite eines üblichen Schaltermoduls (17,5 mm) wird dadurch er­möglicht, daß gegenüber den bekannten Fehlerstromschutz­schaltern ein besonders kompakter Fehlerstromauslöser Verwendung findet, dessen äußere Abmessungen es zulas­sen, ihn in einem solchen Gehäuse unterzubringen. Die bisher in üblichen Fehlerstromschutzschaltern eingesetz­ten Fehlerstromauslöser weisen allesamt jeweils größere Abmessungen auf, die es nicht gestatten, ein derart schmales Gehäuse zur Unterbringung aller erforderlichen Schalterbauteile vorzusehen. Die räumliche Größe der be­kannten Fehlerstromauslöser hängt mit der erforderlichen Auslösekraft zusammen, die zur Betätigung der Schaltkon­takte benötigt wird. Statt eines entsprechend groß di­mensionierten Fehlerstromauslösers wird bei der Erfin­dung ein anderer Weg beschritten, um die Öffnung der Kontaktstellen zu erreichen ohne Verlust an Öffnungsge­schwindigkeit der Kontaktstücke. Die Größe und damit die Auslösekraft des Fehlerstromauslösers wird gemäß der Er­findung dadurch kompensiert, daß ein Hilfsschaltwerk zwischen Auslöser und Hauptschaltwerk geschaltet ist, welches den Impuls des im Ansprechfall betätigten Auslö­senstößels des Fehlerstromauslösers aufnimmt und ver­stärkt an das Hauptschaltwerk weiterleitet.The inventive provision of the residual current circuit breaker in a housing with the width of a conventional switch module (17.5 mm) is made possible by the fact that, compared to the known residual current circuit breakers, a particularly compact residual current release is used, the external dimensions of which allow it to be accommodated in such a housing. The residual current releases previously used in conventional residual current circuit breakers each have larger dimensions, which do not allow the provision of such a narrow housing for accommodating all the necessary switch components. The spatial size of the known residual current release is related to the release force required to actuate the switch contacts. Instead of an appropriately large-sized residual current release, another way is taken in the invention to achieve the opening of the contact points without loss of the opening speed of the contact pieces. The size and thus the triggering force of the residual current release is compensated for in accordance with the invention in that an auxiliary switching mechanism is connected between the trigger and the main switching mechanism, which picks up the pulse of the triggering plunger of the residual current trigger which is actuated in response and transmits it increasingly to the main switching mechanism.

In bevorzugter Ausgestaltung der Erfindung ist vorgese­hen, das Hilfsschaltwerk mit einem Auslösehebel zu ver­sehen, der eine von einem Energiespeicher beaufschlagte Klinke abstützt, die mittels eines Ubertragungshebels mit einem Klinkenhebel des Hauptschaltwerks zusammenar­beitet. Der Auslösehebel ist als Wippe gestaltet, die um einen Drehpunkt schwenkbar ist. Der kürzere Hebelarm der Schalt- oder Auslösewippe arbeitet mit der Klinke zusam­men, während sein längerer Hebelarm vom Auslösestößel des Fehlerstromauslösers beaufschlagbar ist. Außerdem weist das Hilfsschaltwerk eine Rückstellfeder mit Uber­drückung zur Rückstellung des Auslösenockens des Fehler­stromauslösers auf. Mit Hilfe dieser Rückstellfeder kann der Auslösestößel und mit ihm ein im Fehlerstromauslöser angeordneter beweglicher Anker nach erfolgter Auslösung in seine Ausgangslage zurückgesetzt werden.In a preferred embodiment of the invention, the auxiliary switching mechanism is provided with a release lever which supports a pawl which is acted upon by an energy store and which works together with a ratchet lever of the main switching mechanism by means of a transmission lever. The release lever is designed as a rocker that can be pivoted about a pivot point. The shorter lever arm of the switching or release rocker works together with the pawl, while its longer lever arm can be acted on by the release plunger of the residual current device. In addition, the auxiliary switching mechanism has a return spring with overpressure for resetting the tripping cam of the residual current release. With the aid of this return spring, the release plunger and with it a movable armature arranged in the residual current release can be reset to its initial position after the release has taken place.

Erfindungsgemäß ist für das Hauptschaltwerk des Fehler­strompoles das gleiche Schaltwerk vorgesehen, wie es im Leitungsschutzpol zum Einsatz kommt. Hieraus resultieren erhebliche wirtschaftliche Vorteile, da die Herstellung dieses Schaltwerkes in großen Serien auf entsprechenden Maschinen automatisch erfolgt, was zu günstigen Her­stellkosten führt und eine weitgehend automatisierte Fertigung des kombinierten elektrischen Schaltegrätes gestattet.According to the invention, the same switching mechanism as is used in the line protection pole is provided for the main switching mechanism of the fault current pole. This results in considerable economic advantages, since the production of this switching mechanism is carried out automatically in large series on corresponding machines, which leads to low manufacturing costs and permits a largely automated production of the combined electrical switching device.

Gemäß einer besonders vorteilhaften Ausgestaltung der Erfindung ist es vorgesehen, das Hilfsschaltwerk mitsamt dem Fehlerstromauslöser dicht neben dem Hauptschaltwerk zu plazieren, um so genügend Raum im Gehäuse des Fehler­stromschutzschalters zur Verfügung zu haben, der zur Un­terbringung der Auswerteeinheit sowie der Kontaktstelle und der dieser zugeordneten Lichtbogenlöscheinrichtung erforderlich ist.According to a particularly advantageous embodiment of the invention, it is provided to place the auxiliary switch together with the residual current release close to the main switch so that there is enough space in the housing of the residual current circuit breaker to accommodate the evaluation unit as well as the contact point and the arc extinguishing device assigned to it is.

In vorteilhafter Ausgestaltung der Erfindung kann ferner vorgesehen sein, die wenigen Einzelteile des Hilfs­schaltwerkes zusammen mit dem Fehlerstromauslöser auf einer gemeinsamen Platine anzuordnen, was die Montage der Auslöseeinheit vereinfacht und deren Funktionssi­cherheit erhöht. Andererseits ist es jedoch auch mög­lich, die einzelnen vorgenannten Teile des Hilfsschalt­werkes sowie den Fehlerstromauslöser mit Hilfe von ent­sprechend an der Gehäusewand angeformten Ansätzen, Zap­fen und Lagerungen zu fixieren. Für diese Variante spricht die Möglichkeit der Herstellung eines derartigen Gehäuses in einem Arbeitsgang als Spritzgußteil.In an advantageous embodiment of the invention, it can further be provided to arrange the few individual parts of the auxiliary switching mechanism together with the residual current release on a common circuit board, which simplifies the assembly of the tripping unit and increases its functional reliability. On the other hand, however, it is also possible to fix the individual aforementioned parts of the auxiliary switching mechanism as well as the residual current release with the help of projections, pins and bearings which are molded onto the housing wall. This variant is supported by the possibility of producing such a housing in one operation as an injection molded part.

Diese und weitere vorteilhafte Ausgestaltungen der Er­findung sind in den Unteransprüchen angegeben.These and further advantageous refinements of the invention are specified in the subclaims.

Anhand in der Zeichnung dargestellten Ausführungsbei­spieles sollen die Erfindung, vorteilhafte Ausgestaltun­gen und besondere Vorteile der Erfindung näher erläutert und beschrieben werden.The invention, advantageous refinements and particular advantages of the invention are to be explained and described in more detail with reference to the exemplary embodiment illustrated in the drawing.

Es zeigen:

  • Figur 1 Ein erfindungsgemäßes Schaltgerät (FI/LS-Schalter) in Schrägansicht
  • Figur 2 bis 5 ein Hilfsschaltwerk mit Fehlerstromauslö­ser des erfindungsgemäßen Schaltgerätes in schematischer Darstellung
  • Figur 2 Einschaltstellung
  • Figur 3 eine Zwischenstellung
  • Figur 4 eine Zwischenstellung mit abgehobenen beweglichen Kontaktstück und Rückstellung des Hilfsschaltwerks und des Fehlerstrom­auslösers
  • Figur 5 Ausschaltstellung
Show it:
  • Figure 1 An inventive switching device (FI / LS switch) in an oblique view
  • Figure 2 to 5 an auxiliary switch with residual current release of the switching device according to the invention in a schematic representation
  • Figure 2 switch-on position
  • Figure 3 shows an intermediate position
  • 4 shows an intermediate position with the movable contact piece lifted off and the auxiliary switching mechanism and the residual current release being reset
  • Figure 5 OFF position

In Figur 1 ist ein erfindungsgemäßes Schaltgerät 10 dar­gestellt, das aus je einem Leitungsschutzschalter 12 und einem Fehlerstromschutzschalter 14, die in separaten ne­beneinander angeordneten modulartigen Gehäusen 13, 15 angeordnet sind, zusammengesetzt ist. Die beiden Gehäuse 13, 15 sind äußerlich nahezu gleich, was ihre äußeren Abmessungen betreffen - die Dicke der Gehäuse entspricht dem festgelegten Modulmaß von 17,5 mm -, als auch hin­sichtlich ihrer Formgebung mit Ausnahme einer Prüftaste 16, mittels der die Funktion des Fehlerstrompoles 14 überprüfbar ist. Im übrigen besitzen beide Einzelschal­ter 12, 14 jeweils durch Betätigungsöffnungen 18 betä­tigbare nicht gezeigte Anschlußklemmen, die über Zufüh­rungsöffnungen 20 für den Anschluß von Zuführungs- und Abgangsleitern erreichbar sind.In Figure 1, a switching device 10 according to the invention is shown, which is composed of one circuit breaker 12 and one residual current circuit breaker 14, which are arranged in separate module-like housings 13, 15 arranged side by side. The two housings 13, 15 are almost identical on the outside in terms of their outer dimensions - the thickness of the housing corresponds to the specified module size of 17.5 mm - and also in terms of their shape, with the exception of a test button 16, by means of which the fault current pole 14 functions is verifiable. In addition, both individual switches 12, 14 each have actuating terminals, not shown, which can be actuated by actuating openings 18 and which can be reached via supply openings 20 for the connection of supply and outgoing conductors.

An seiner Frontseite, die in der Figur 1 nach oben weist, besitzt das erfindungsgemäße Schaltgerät 10 zwei Schaltgriffe 22, die mittels eines daraufgesetzten Ver­bindungsteiles 23 miteinander gekoppelt sind, als Hand­betätigungsorgan, mit welchem die in dieser Darstellung nicht gezeigten Kontaktstellen des Schaltgerätes 10 ma­nuell betätigbar sind. An seiner in Figur 1 nach unten weisenden Rückseite weist das Schaltgerät 10 eine Aus­nehmung 24 auf, welche zur Aufnahme einer nicht darge­stellten Tragschiene, vorzugsweise Hutprofiltragschiene, dient. Die nach den Flachseiten hin offene Ausnehmung 24 wird nach den Schmalseiten hin einerseits von einer ortsfesten Rastnase 26 begrenzt, welche zur Abstützung einer Kante der Tragschiene dient. Zur anderen Schmal­seite hin wird die Ausnehmung 24 von einer Querkante 25 begrenzt, die in bekannter Weise von einem beweglichen Rastschieber 28 durchgriffen ist, der die andere Kante der Tragschiene hintergreift. Von dem Rastschieber 38 ist in Figur 1 allerdings nur das Ende mit einer Betäti­gungsöffnung 29 zu erkennen.On its front side, which points upwards in FIG. 1, the switching device 10 according to the invention has two switching handles 22, which are coupled to one another by means of a connecting part 23 placed thereon, as a manual actuating element with which the contact points of the switching device 10, not shown in this illustration, can be actuated manually . On its rear side, which points downward in FIG. 1, the switching device 10 has a recess 24, which serves to receive a mounting rail, not shown, preferably a top-hat mounting rail. The recess 24 open towards the flat sides is bounded on the one hand towards the narrow sides by a fixed latching lug 26 which serves to support an edge of the mounting rail. To the other narrow side, the recess 24 is delimited by a transverse edge 25 which is penetrated in a known manner by a movable locking slide 28 which engages behind the other edge of the mounting rail. Of the locking slide 38, however, only the end with an actuation opening 29 can be seen in FIG.

Das wie bereits erwähnt aus zwei Einzelschaltern 12, 14 zusammengesetzte Schaltgerät 10 ist durch Verbindungs­elemente 17 zusammengehalten und bildet so einen ein­heitlichen Block, der zusätzlich durch ein in dieser Darstellung nicht erkennbares Kupplungsteil, welches zur mechanischen Kopplung der Schaltorgane der beiden Ein­zelschalter 12, 14 dient, auch in seiner Funktion ver­einheitlicht ist. Die zum erfindungsgemäßen Schaltgerät 10 vereinigten Einzelschalter 12, 14 besitzen jeweils im Inneren ihrer Gehäuse 13, 15 ein Hauptschaltwerk, das einerseits mit dem Schaltgriff 22 verbunden ist und an­dererseits zur Betätigung einer ebenfalls in jedem Ein­zelschalter 12, 14 vorgesehenen Kontaktstelle, die je­weils aus einem beweglichen und einem festen Kontakt­stück gebildet ist. Ein solches Hauptschaltwerk ist be­kannt aus der EP-B1 0 144 799, die einen Leitungsschutz­schalter betrifft, wie er bei der Erfindung Verwendung findet. Im Fehlerstromschutzpol 14 des Schaltgerätes 10 ist ebenfalls ein solches Hauptschaltwerk vorgesehen, welches ebenfalls einerseits mit dem Handschaltgriff 22 verbunden ist und andererseits aber von einem in den Figuren 2 bis 5 erläuterten Hilfsschaltwerk 30 beauf­schlagt ist. Die Figuren 2 bis 5 geben in schematischer Darstellung einzelne Schaltstellungen des Hilfsschalt­werks 30 wieder.The switching device 10, as already mentioned, composed of two individual switches 12, 14 is held together by connecting elements 17 and thus forms a unitary block, which is additionally provided by a coupling part (not shown in this illustration) which serves for the mechanical coupling of the switching elements of the two individual switches 12, 14. is also standardized in its function. The individual switches 12, 14 combined to form the switching device 10 according to the invention each have a main switching mechanism in the interior of their housings 13, 15, which is connected on the one hand to the switching handle 22 and on the other hand for actuating a contact point likewise provided in each individual switch 12, 14, each of which consists of a movable and a fixed contact piece is formed. Such a main switching mechanism is known from EP-B1 0 144 799, which relates to a circuit breaker as used in the invention. Such a main switching mechanism is also provided in the residual current protection pole 14 of the switching device 10, which is also connected on the one hand to the manual control handle 22 and on the other hand is acted upon by an auxiliary switching mechanism 30 explained in FIGS. 2 to 5. FIGS. 2 to 5 show individual switching positions of the auxiliary switching mechanism 30 in a schematic representation.

In Figur 2 ist die Einschaltstellung des Fehlerstrom­schutzpoles 14 dargestellt, dessen aus einem beweglichen Kontaktstück 30 und einem nur symbolisch angedeuteten festen Kontaktstück 32 gebildete Kontaktstelle 31 ge­schlossen ist. Das bewegliche Kontaktstück 30 ist an einem Kontaktarm 34 befestigt, der um einen Drehpunkt 35 schwenkbar gelagert ist. Oberhalb des Drehpunktes 35 des Kontaktarmes 34, d. h. an dessen dem beweglichen Kon­taktstück 30 abgewandten Hebelarm 341 ist eine Feder 36 angeordnet, welche sich einerseits am Gehäuse 15 und andererseits am Hebelarm 341 des Kontaktarmes 34 ab­stützt. Am Ende des Hebelarmes 341 des Kontaktarmes 34 ist eine Schaltstange 38 angelenkt, deren anderes Ende mit einem Klinkenhebel 40 verbunden ist, wo es in einem Langloch 401 geführt ist. Der Klinkenhebel 40 besitzt eine Rastnase 402, welche sich in einer Ausnehmung 421 eines Auslösehebels 42 abstützt. Der Auslösehebel 42 ist an einem Ende an einer Drehachse 43 schwenkbar geführt und von einer nicht dargestellten Drehfeder im Uhrzei­gersinn beaufschlagt. Die Drehachse 43 dient gleichzei­tig auch zur Lagerung des Schaltgriffes 22, der in die­ser Darstellung nicht gezeigt ist und der über einen ebenfalls nicht dargestellten Verbindungshebel mit dem im Langloch 401 geführten Gelenk 381 der Schaltstange 38 gelenkig verbunden ist. Die bisher erwähnten und be­schriebenen Teile in Figur 2 gehören zum bereits erwähn­ten Hauptschaltwerk. Diese Teile wurden insoweit ange­sprochen, als sie in Wechselwirkung mit dem nun an­schließend beschriebenen Hilfsschaltwerk 44 zusammenwir­ken.FIG. 2 shows the switch-on position of the residual current protection pole 14, the contact point 31 of which is formed from a movable contact piece 30 and a fixed contact piece 32, which is only symbolically indicated, is closed. The movable contact piece 30 is fastened to a contact arm 34 which is pivotally mounted about a pivot point 35. Above the fulcrum 35 of the contact arm 34, i.e. H. On the lever arm 341 facing away from the movable contact piece 30, a spring 36 is arranged, which is supported on the one hand on the housing 15 and on the other hand on the lever arm 341 of the contact arm 34. At the end of the lever arm 341 of the contact arm 34, a switching rod 38 is articulated, the other end of which is connected to a ratchet lever 40, where it is guided in an elongated hole 401. The pawl lever 40 has a detent 402, which is supported in a recess 421 of a release lever 42. The trigger lever 42 is pivotally guided at one end on an axis of rotation 43 and acted upon by a torsion spring, not shown, in the clockwise direction. The axis of rotation 43 also serves to mount the control handle 22, which is not shown in this illustration and which is connected in an articulated manner to the joint 381 of the shift rod 38, which is guided in the elongated hole 401, via a connecting lever, also not shown. The previously mentioned and described parts in FIG. 2 belong to the main switching mechanism already mentioned. These parts were addressed in so far as they interact in interaction with the auxiliary switching device 44, which will now be described.

Die im folgenden behandelten Teile gehören zum die Er­findung ermöglichenden Hilfsschaltwerk 44, welches eine Schaltwippe 46, mit einem Drehpunkt 45, einen Kraftspei­cher 48 mit einem Drehpunkt 47, einen Verklinkungshebel 50 ebenfalls mit dem Drehpunkt 47, eine Auslösestange 52, die in einem Drehpunkt 51 im Verklinkungshebel 50 gelenkig geführt ist, sowie eine Rückstellfeder 54, die einen Drehpunkt 53 besitzt, und eine Rückholfeder 56, welche den kurzen Hebelarm 461 der Auslösewippe 46 im Uhrzeigersinn beaufschlagt. Unmittelbar benachbart zum Hilfsschaltwerk 44 ist ein Fehlerstromauslöser 60 mit einem Auslösestößel 61 angeordnet.The parts dealt with below belong to the auxiliary switching mechanism 44 which enables the invention, which has a rocker switch 46 with a pivot point 45, an energy accumulator 48 with a pivot point 47 and a latching lever 50 also with the fulcrum 47, a release rod 52 which is guided in an articulated manner in a fulcrum 51 in the latching lever 50, and a return spring 54 which has a fulcrum 53, and a return spring 56 which acts on the short lever arm 461 of the release rocker 46 in a clockwise direction . A residual current release 60 with a release plunger 61 is arranged directly adjacent to the auxiliary switching mechanism 44.

Im eingeschalteten Zustand befinden sich sowohl das Hauptschaltwerk als auch das Hilfsschaltwerk 44 im Gleichgewicht der Kräfte. Dabei stützt sich der Kontakt­arm 34 des beweglichen Kontaktstückes 30 über die Schaltstange 38 am Klinkenhebel 40 ab. Aufgrund der be­sonderen, in Figur 2 gezeigten Lage des Klinkenhebels 40, bei der dessen Drehpunkt 41, der durch den Verklin­kungshebel 50 teilweise verdeckt ist, unterhalb der Ver­bindungsgeraden von der Stützkante 421 des Auslösehebels 42 zu dem im Kontaktarm 34 angeordneten anderen Gelenk­punkt 382 der Schaltstange 38 liegt, ist deren Gelenk­punkt 381 an dem der Rastnase 402 abgewandten Ende des Langlochs 401 fixiert. Wie bereits erwähnt, stützt sich der Klinkenhebel 40 aufgrund der Beaufschlagung durch eine Feder mit seiner Rastnase 402 an der Stützkante 421 im Auslösehebel 42 ab.In the switched-on state, both the main switching mechanism and the auxiliary switching mechanism 44 are in the equilibrium of the forces. The contact arm 34 of the movable contact piece 30 is supported on the pawl lever 40 via the switching rod 38. Due to the special position of the pawl lever 40 shown in FIG. 2, at which its pivot point 41, which is partially covered by the pawl lever 50, below the connecting straight line from the support edge 421 of the release lever 42 to the other articulation point 382 of the switching rod 38 arranged in the contact arm 34 lies, the hinge point 381 is fixed to the end of the elongated hole 401 facing away from the locking lug 402. As already mentioned, the pawl lever 40 is supported on the support edge 421 in the release lever 42 due to the action of a spring with its detent 402.

Auch das Hilfsschaltwerk 44 ist in der gezeigten Dar­stellung in Figur 2 im Gleichgewicht. Der kurze Hebelarm 461 der Auslösewippe 46 wird von der Feder 56 in den Verklinkungshebel 50 gedrückt, so daß eine an diesen an­geformte Klinke 501 sich an der Stirnseite der Auslöse­wippe 46 abstützt. Der Kraftspeicher 48, der als Drehfe­der ausgestaltet ist, stützt sich mit seinem einen He­belarm am Gehäuse 15 oder an der Führung des Hilfs­schaltwerkes 44 ab und mit seinem anderen an dem an den Verklinkungshebel 50 angeformten Drehzapfen 51, an wel­chen die Auslösestange 52 angelenkt ist.The auxiliary switching mechanism 44 is also in equilibrium in the illustration shown in FIG. 2. The short lever arm 461 of the trigger rocker 46 is pressed by the spring 56 into the latching lever 50, so that a pawl 501 formed thereon is supported on the end face of the trigger rocker 46. The energy accumulator 48, which is designed as a torsion spring, is supported with its one lever arm on the housing 15 or on the guide of the auxiliary switching mechanism 44 and with its other one on the pivot pin 51 formed on the latching lever 50, to which the trigger rod 52 is articulated.

Solange keine äußeren Einflüsse auf dieses aus dem Hauptschaltwerk und dem Hilfsschaltwerk 44 gebildete He­belsystem einwirken, bleibt der beschriebene Zustand er­halten und die Kontaktstelle 31 geschlossen.As long as there are no external influences on this lever system formed by the main switching mechanism and the auxiliary switching mechanism 44, the described state is maintained and the contact point 31 is closed.

In Figur 3 ist eine Zwischenstellung zwischen der Ein­und der Ausschaltstellung des aus Hauptschaltwerk und Hilfsschaltwerk 44 gebildeten Schaltwerksystems des Feh­lerstromschutzpoles 14 gezeigt, bei der infolge Auftre­ten eines Fehlerstromes der Fehlerstromauslöser 60 akti­viert wurde und sein Schaltstößel 61 die Schaltwippe 46 aus ihrer Normallage im Gegenuhrzeigersinn verschwenkt hat. Hierdruch schwenkt auch der kurze Hebelarm 461 der Auslösewippe 46 im Gegenuhrzeigersinn, so daß die Klinke 501 des Verklinkungshebels 50 ihre Stütze verliert und ebenfalls im Gegenuhrzeigersinn unter Einwirkung des Kraftspeichers 48 um die Drehachse 47 schwenkt. Mit dem Schwenken der Auslösewippe 46 wird die Rückholfeder 56 gespannt.FIG. 3 shows an intermediate position between the on and the off position of the switching system of the residual current protection pole 14 formed from the main switching mechanism and auxiliary switching mechanism 44, in which the residual current release 60 was activated as a result of the occurrence of a residual current and its switching plunger 61 has pivoted the rocker switch 46 counterclockwise from its normal position. Here, the short lever arm 461 of the trigger rocker 46 pivots counterclockwise, so that the pawl 501 of the latch lever 50 loses its support and also pivots counterclockwise under the action of the energy accumulator 48 about the axis of rotation 47. With the pivoting of the trigger rocker 46, the return spring 56 is tensioned.

Einhergehend mit der Schwenkbewegung des Verklinkungshe­bels 50 um die Drehachse 47 verschiebt sich auch das Drehgelenk 51 der Auslösestange 52 in Richtung auf den Auslösehebel 42 zu. Hierdurch erfährt auch der Auslöse­hebel 42 eine Schwenkbewegung im Gegenuhrzeigersinn um seine Drehachse 43. Dadurch wird der Rastnase 402 die Stütze an der Stützkante 421 entzogen und kann entspre­chend der Beaufschlagung durch die Feder 36 über die Schaltstange 38 im Uhrzeigersinn schwenken. Dieser Vor­gang ist in Figur 4 dargestellt.Along with the pivoting movement of the latching lever 50 about the axis of rotation 47, the pivot joint 51 of the trigger rod 52 also shifts in the direction of the trigger lever 42. This also causes the trigger lever 42 to pivot counterclockwise about its axis of rotation 43. As a result, the catch 402 is removed from the support on the support edge 421 and can pivot clockwise in accordance with the action of the spring 36 on the switching rod 38. This process is shown in Figure 4.

Figur 4 zeigt eine weitere Zwischenstellung der zuvor beschriebenen Schaltwerksanordnung. Wie in der Beschrei­bung zu Figur 3 bereits erwähnt, hat der Klinkenhebel 40 eine Schwenkbewegung um ca. 30° ausgeführt. Hierdurch kann die Schaltstange 38 nach rechts in Richtung auf die Rastnase 402 des Klinkenhebels 40 zu mit seinem Gelenk­punkt 381 in dem Langloch 401 des Klinkenhebels 40 glei­ten, wobei diese Bewegung durch die Feder 36, die den oberen Hebelarm 341 des Kontaktarmes 34 beaufschlagt un­terstützt wird. Einhergehend mit dieser Axialverschie­bung der Schaltstange 38 vollzieht der Kontaktarm 34 ei­ne Schwenkbewegung im Uhrzeigersinn um die Drehachse 35, wodurch das bewegliche Kontaktstück 30 vom festen Kon­taktstück 32 abhebt und die Kontaktstelle 31 geöffnet ist. Gleichzeitig mit dieser Schwenkbewegung drückt der Hebelarm 341 des Kontaktarmes 34 mit seinem als Schulter 342 ausgebildeten Ende gegen den Verklinkungshebel 40, wodurch dieser wiederum eine Schwenkbewegung im Uhrzei­gersinn um die Schwenkachse 47 vollzieht.Figure 4 shows a further intermediate position of the previously described switching arrangement. As already mentioned in the description of FIG. 3, the pawl lever 40 has carried out a pivoting movement of approximately 30 °. Through this the shift rod 38 can slide to the right in the direction of the latch 402 of the ratchet lever 40 with its pivot point 381 in the elongated hole 401 of the ratchet lever 40, this movement being supported by the spring 36 which acts on the upper lever arm 341 of the contact arm 34. Along with this axial displacement of the switching rod 38, the contact arm 34 pivots clockwise about the axis of rotation 35, as a result of which the movable contact piece 30 lifts off the fixed contact piece 32 and the contact point 31 is open. Simultaneously with this pivoting movement, the lever arm 341 of the contact arm 34 presses with its end designed as a shoulder 342 against the latching lever 40, which in turn carries out a pivoting movement in a clockwise direction about the pivot axis 47.

Bei dieser Schwenkbewegung des Verklinkungshebels 40 vollzieht sich zweierlei. Zum einen wird der Kraftspei­cher 48 durch den Drehzapfen 51 erneut gespannt. Gleich­zeitig wird auch die Klinke 501 im Uhzeigersinn ge­schwenkt, so daß auch der kurze Hebelarm 461 der Schalt­wippe 46 aufgrund der Beaufschlagung durch die Rückhol­feder 56 in seine Normallage zurückgleitet und so seine Strinseite wieder als Stütze für die Klinke 501 dienen kann. Ferner wird bei dieser Schwenkbewegung des Ver­klinkungshebels 40 auch die Auslösestange 52 in ihre Normallage zurückgezogen.During this pivoting movement of the latch lever 40, two things take place. On the one hand, the energy accumulator 48 is tensioned again by the pivot pin 51. At the same time, the pawl 501 is pivoted clockwise, so that the short lever arm 461 of the rocker switch 46 slides back into its normal position due to the action of the return spring 56, and so its string side can again serve as a support for the pawl 501. Furthermore, with this pivoting movement of the latching lever 40, the trigger rod 52 is also retracted into its normal position.

Bei seiner Schwenkbewegung im Uhrzeigersinn um seine in Figur 4 durch den Verklinkunghebel 50 verdeckten Dreh­punkt 41 beaufschlagt der Klinkenhebel 40 mit seinem freien Ende, welches die Rastnase 402 trägt, die Rück­holfeder 54 derart, daß diese um den Drehpunkt 53 schwenkend den Auslösestößel 61 des Fehlerstromauslösers 60 in seine Ruhelage zurückstellt.When it pivots clockwise around its pivot point 41, which is covered by the latch lever 50 in FIG. 4, the latch lever 40, with its free end, which carries the latch 402, acts on the return spring 54 in such a way that it pivots about the fulcrum 53 the release plunger 61 of the residual current release 60 returns to its rest position.

Die Rückholfeder 54 ist als federnd nachgiebiger Hebel ausgebildet, wobei sich die im Beispiel gezeigte Ausge­staltung als Gabelhebel anbietet. Die federnde Nachgie­bigkeit ist erforderlich, um sicherzustellen, daß der an den Auslösestößel anschließende bewegliche Anker im Feh­lerstromauslöser 60 auch tatsächlich in seine Ruhelage am Magnetjoch des Fehlerstromauslösers anliegt und so seine Ruhelage einnimmt. Hierbei gestattet die federnde Nachgiebigkeit der Rückstellfeder 54 eine gewisse Uber­drückung, die gleichzeitig den Ausgleich von fertigungs-­bzw. verschleißbedingten Toleranzen ermöglicht.The return spring 54 is designed as a resilient lever, the embodiment shown in the example offering itself as a fork lever. The resilient resilience is necessary to ensure that the movable armature connected to the trigger plunger in the residual current release 60 actually rests in its rest position on the magnetic yoke of the residual current release and thus assumes its rest position. Here, the resilient flexibility of the return spring 54 allows a certain overpressure, which at the same time compensates for manufacturing or. tolerances due to wear.

In Figur 5 ist schließlich die Ausschaltstellung des Fehlerstrompoles 14 wiedergegeben, in der das bewegliche Kontaktstück 30 vom festen Kontaktstück 32 abgehoben ist jedoch das Hilfsschaltwerk 44 bereits wieder voll ge­spannt ist. Hierbei ist zu beachten, daß die Schulter 342 des Kontaktarmes 34 nach wie vor im Kontakt mit dem Verklinkungshebel 50 steht und diesen in Uhrzeigersinn beaufschlagt, so daß dessen Klinke 501 in gewissem Ab­stand zur Stirnseite der Schaltwippe 46 steht. Desglei­chen liegt auch das freie Ende der Auslösestange 52 nicht unmittelbar am Auslösehebel 42 an sondern an einem Ansatz 422, der zur Führung der Auslösestange 52 dient.Finally, FIG. 5 shows the switch-off position of the fault current pole 14, in which the movable contact piece 30 is lifted off the fixed contact piece 32, but the auxiliary switching mechanism 44 is already fully cocked again. It should be noted here that the shoulder 342 of the contact arm 34 is still in contact with the latching lever 50 and acts on it in a clockwise direction, so that its pawl 501 is at a certain distance from the end face of the rocker switch 46. Likewise, the free end of the trigger rod 52 is not directly on the trigger lever 42 but on an extension 422, which serves to guide the trigger rod 52.

Die Rastnase 402 des Klinkenhebels 40 hat wieder ihren Platz in der Ausnehmung mit der Stützkante 421 im Auslö­sehebel 42 eingenommen. Lediglich die Schaltstange 38 liegt mit ihrem Gelenkpunkt 381 innerhalb des Langloches 401 oberhalb der Lage, die sie im eingeschalteten Zu­stand einnimmt.The detent 402 of the pawl lever 40 has again taken its place in the recess with the supporting edge 421 in the release lever 42. Only the shift rod 38 lies with its articulation point 381 within the elongated hole 401 above the position which it assumes in the switched-on state.

Um die Funktion des im erfindungsgemäßen Schaltgerätes 10 in dessen Fehlerstromschutzpol 14 eingesetzten Hilfs­schaltwerkes 44 mit kompaktem Fehlerstromauslöser 60 zu verdeutlichen, soll nachfolgende Zusammenfassung dienen. Der Fehlerstromschutzpol 14 des erfindungsgemäßen Schaltgerätes 10 besitzt ein Hauptschaltwerk, daß mit dem des benachbarten Leitungsschutzschalters 12 iden­tisch ist. Während im Leitungsschutzschalter zur Betäti­gung, d. h. zur Auslösung, des Schaltwerkes in bekannter Weise ein Uberstrom- sowie ein Kurzschlußstromauslöser vorgesehen sind, deren Auslösekräfte ausreichen, um das zwecks schneller Öffnung von einem starken Kraftspeicher beaufschlagte Schaltwerk auszulösen, steht im Fehler­stromschutzpol 14 des Schaltgerätes 10 wegen der ein­gangs genannten Gründe ein derartiger Raum nicht zur Verfügung, sondern es kann lediglich ein den Modulabmes­sungen angepaßter Fehlerstromauslöser 60 zum Einsatz kommen. Dieser Fehlerstromauslöser 60 jedoch ist bedingt durch seine Größe nicht in der Lage, soviel Energie freizusetzen, um das Hauptschaltwerk in vergleichbarer Weise wie beim Leitungsschutzschalter 12 auszulösen.The following summary is intended to illustrate the function of the auxiliary switching mechanism 44 used in the switching device 10 according to the invention in its residual current protective pole 14 with a compact residual current release 60. The residual current protection pole 14 of the switching device 10 according to the invention has a main switching mechanism that is identical to that of the adjacent circuit breaker 12. While in the circuit breaker for actuation, d. H. To trigger the switching mechanism, an overcurrent and a short-circuit current release are provided in a known manner, the triggering forces of which are sufficient to trigger the switching mechanism which is acted upon by a strong energy accumulator for the purpose of quick opening, such a space is not located in the residual current protection pole 14 of the switching device 10 because of the reasons mentioned at the beginning available, but only a residual current release 60 adapted to the module dimensions can be used. Due to its size, however, this residual current release 60 is not able to release enough energy to trigger the main switching mechanism in a manner comparable to that of the circuit breaker 12.

Demzufolge ist erfindungsgemäß vorgesehen, ein Hilfs­schaltwerk 44 zwischenzuschalten, das dazu dient die ge­ringe Auslösekraft des Fehlerstromauslösers 60 nahezu verzögerungsfrei zu verstärken und im Ansprechfall auf das Hauptschaltwerk zu übertragen, um es zur Auslösung zu bringen. Hierbei macht sich die Erfindung die Wech­selwirkung von Hebelarmen und Kraftspeichern zu Nutze.Accordingly, it is provided according to the invention to interpose an auxiliary switching mechanism 44, which serves to amplify the low tripping force of the residual current release 60 almost without delay and to transmit it to the main switching mechanism in response to triggering it. Here, the invention makes use of the interaction of lever arms and energy stores.

Die Auslösewippe 46 besitzt einen langen und einen kur­zen Hebelarm 461 und ist um den Drehpunkt 45 schwenkbar. Im Ansprechfall beaufschlagt der Auslösestößel 61 des Fehlerstromauslösers 60 den langen Hebelarm der Auslöse­wippe 46 derart, daß diese eine Schwenkbewegung im Ge­genuhrzeigersinn um die Drehachse 45 ausführt und dabei der kurze Hebelarm 461 seine Stützfunktion für den Ver­klinkungshebel 50, der seinerseits von einem Kraftspei­cher 48 beaufschlagt ist, verliert. Hierdurch vollzieht der Verklinkungshebel 50 aufgrund der Beaufschlagung durch den Kraftspeicher 48 eine Schwenkbewegung im Ge­genuhrzeigersinn und drückt hierbei über eine Auslöse­stange 52 den Auslösehebel 42 des Hauptschaltwerkes aus seiner Ruhelage, so daß der darin abgestützte Klinkenhe­bel 40 entklinkt ist und, der Beaufschlagung durch eine Feder folgend ebenfalls eine Schwenkbewegung im Uhrzei­gersinn ausführt. Hierdurch kann der bis dahin in dem Langloch 401 fixierte Gelenkpunkt 381 der Schaltstange 38 vom Langloch 401 geführt darin entlanggleiten. Die am Gehäuse 15 oder an der Führung des Hilfsschaltwerkes 44 abgestützte Feder 36, die den oberen Hebelarm 341 des Kontaktarmes 34 beaufschlagt, an welchem die Schalt­stange 38 angelenkt ist, unterstützt die Bewegung der Schaltstange 38, wodurch gleichzeitig der Kontaktarm 34 eine Schwenkbewegung im Uhrzeigersin um den Drehpunkt 35 ausführt. Hierbei hebt das bewegliche Kontaktstück 30, das am Kontaktarm 34 befestigt ist vom festen Kontakt­stück 32 ab, so daß die Kontatkstelle 31 des Fehler­stromschutzpoles 14 geöffnet ist.The trigger rocker 46 has a long and a short lever arm 461 and can be pivoted about the pivot point 45. In response, the trigger plunger 61 of the residual current release 60 acts on the long lever arm of the trigger rocker 46 in such a way that it carries out a pivoting movement counterclockwise about the axis of rotation 45 and thereby the short lever arm 461 loses its support function for the latch lever 50, which in turn is acted upon by an energy accumulator 48. As a result, the latch lever 50 executes a pivoting movement in the counterclockwise direction due to the action by the energy store 48 and in this case presses the release lever 42 of the main switching mechanism out of its rest position via a release rod 52, so that the latch lever 40 supported therein is unlatched and, following the action by a spring, likewise pivots clockwise. As a result, the hinge point 381 of the shift rod 38 fixed up to that point in the elongated hole 401 can slide therein guided by the elongated hole 401. The spring 36 supported on the housing 15 or on the guide of the auxiliary switching mechanism 44, which acts on the upper lever arm 341 of the contact arm 34 to which the switching rod 38 is articulated, supports the movement of the switching rod 38, whereby the contact arm 34 simultaneously pivots clockwise executes the fulcrum 35. Here, the movable contact piece 30, which is attached to the contact arm 34, lifts off from the fixed contact piece 32, so that the contact point 31 of the residual current protection pole 14 is open.

Ergänzend ist noch darauf hinzuweisen, daß die Drehachse 43 des Auslösehebels 42 gleichzeitig auch Drehachse für den Handschaltgriff 22 darstellt, der über das Verbin­dungsteil 23 beide Hauptschaltwerke koppelt, so daß auch eine manuelle Betätigung der Kontaktstellen möglich ist.In addition, it should also be noted that the axis of rotation 43 of the release lever 42 also represents the axis of rotation for the manual control handle 22, which couples the two main switching mechanisms via the connecting part 23, so that manual actuation of the contact points is also possible.

Ferner besitzt der Fehlerstromschutzpol 14 eine Prüfta­ste 16, mittels der ein Fehlerstromsignal künstlich er­zeugt werden kann, welches zum Ansprechen des Fehler­stromauslösers führt, wodurch ebenfalls in der vorher beschriebenen Weise die Auslösung des Schaltwerkes her­vorgerufen wird.Furthermore, the residual current protection pole 14 has a test button 16, by means of which a residual current signal can be artificially generated, which leads to the response of the residual current release, which likewise triggers the switching mechanism in the manner described above.

Darüberhinaus ist der Fehlerstromschutzpol 14 mit dem benachbarten Leitungsschutzschalter 12 über ein nicht näher gezeigtes Kupplungsteil verbunden, welches dazu dient, im Auslösefalle des einen Schalterpoles jeweils den anderen Schalterpol ebenfalls zur Auslösung zu brin­gen, so daß in jedem Ansprechfall, sei es ein Uber-, Kurzschluß- oder Fehlerstrom, zur Auslösung beider Ein­zelschalter 12, 14 kommt, so daß der durch das erfin­dungsgemäße Schaltgerät 10 gesicherte Stromkreis strom­los geschaltet ist.In addition, the residual current protection pole 14 is connected to the adjacent circuit breaker 12 via a coupling part (not shown in more detail), which is used to trigger the respective other switch pole in the event of the tripping of one switch pole, so that in every response, be it an Uber or short circuit - or fault current, both individual switches 12, 14 are triggered, so that the circuit protected by the switching device 10 according to the invention is switched off.

Claims (10)

1. Elektrisches Schaltgeräte zum Aufschnappen auf Profiltragschienen mit je einem einpoligen Leitungs­schutzschalter und Fehlerstromschutzschalter, die in getrennten, jedoch miteinander verbundenen Gehäusen an­geordnet sind, mit Auslösemitteln zur Betätigung von beweglichen Kontaktstücken, die mittels festen Kontakt­stücken Kontaktstellen bilden, sowie mit Handschaltgrif­fen, die jeweils über wenigstens ein Schaltwerk mit ei­ner Verklinkungsstelle die manuelle Betätigung der be­weglichen Kontaktstücke gestatten, dadurch gekennzeich­net, daß der Fehlerstromschutzschalter (14) wie auch der Leitungsschutzschalter (12) jeweils in einem Gehäuse (13, 15) mit einer Modulbreite (17,5 mm) angeordnet sind und jeweils ein mittels einer Kupplung verbundenes gleichgestaltetes Hauptschaltwerk besitzen, das die be­weglichen Kontaktstücke (30) betätigt, und daß der Feh­lerstromschutzschalter (14) zusätzlich ein Hilfsschalt­werk (44) besitzt, welches mit einem Fehlerstromauslöser (60) zusammenarbeitet und dessen von einem Auslösestößel (61) übertragenen Auslöseimpuls verstärkt, auf den Aus­lösehebel (42) des Hauptschaltwerkes überträgt und so dessen Entklinkung herbeiführt, was die Öffnung der zu­geordneten Kontaktstelle (31) zur Folge hat.1.Electric switchgear for snapping onto mounting rails, each with a single-pole circuit breaker and residual current circuit breaker, which are arranged in separate but interconnected housings, with release means for actuating movable contact pieces, which form contact points by means of fixed contact pieces, and with hand controls, each of which has at least one a switching mechanism with a latching point permit the manual actuation of the movable contact pieces, characterized in that the residual current circuit breaker (14) and the circuit breaker (12) are each arranged in a housing (13, 15) with a module width (17.5 mm) and each have an identically designed main switching mechanism connected by means of a coupling, which actuates the movable contact pieces (30), and that the residual current circuit breaker (14) additionally has an auxiliary switching mechanism (44) which cooperates with a residual current release (60) and the like from a trigger plunger (61) transmitted trigger pulse, transmitted to the trigger lever (42) of the main switching mechanism and thus brings about its release, which results in the opening of the associated contact point (31). 2. Elektrisches Schaltgerät nach Anspruch 1, da­durch gekennzeichnet, daß das Hilfsschaltwerk einen von einem Kraftspeicher (48) beaufschlagten Verklinkungshe­bel (50) besitzt, der seinerseits über eine Auslösestan­ge (52) mit dem Auslösehebel (42) des Hauptschaltwerkes 3 in Verbindung steht und sich an einer Auslösewippe (46) abstützt, die vom Auslösestößel (61) des Fehlerstromaus­lösers (60) beaufschlagbar ist.2. Electrical switching device according to claim 1, characterized in that the auxiliary switching mechanism has a latching lever (50) acted upon by an energy store (48), which in turn is connected via a trigger rod (52) to the trigger lever (42) of the main switching mechanism 3 and itself supported on a trigger rocker (46) which can be acted upon by the trigger plunger (61) of the residual current release (60). 3. Elektrisches Schaltgerät nach Anspruch 2, da­durch gekennzeichnet, daß im Ansprechfall, der Auslöse­stößel (61) des Fehlerstromauslösers (60) die Auslöse­wippe (46) in eine Schwenkbewegung im Gegenuhrzeigersinn versetzt, wodurch der Verklinkungshebel (50) seine Stüt­ze verliert und unter Einwirkung des Kraftspeichers (48) über die Auslösestange (52) den Auslösehebel (42) des Hauptschaltwerkes aus seiner Ruhelage bewegt und hier­durch die Entklinkung eines Klinkenhebels (40) herbei­führt, der über eine Schaltstange (38) mit einem Kon­taktarm (34) verbunden ist, der das bewegliche Kontakt­stück (30) trägt und so die Öffnung der Kontaktstelle (31) hervorruft.3. Electrical switching device according to claim 2, characterized in that in response, the trigger plunger (61) of the residual current release (60) sets the trigger rocker (46) in a pivoting movement in the counterclockwise direction, whereby the latch lever (50) loses its support and under the influence of The energy storage device (48) moves the release lever (42) of the main switching mechanism out of its rest position via the release rod (52) and thereby releases a pawl lever (40), which is connected via a switch rod (38) to a contact arm (34), which movable contact piece (30) and thus causes the opening of the contact point (31). 4. Elektrisches Schaltgerät nach einem der vorheri­gen Ansprüche, dadurch gekennzeichnet, daß der Kraft­speicher (48) als Drehfeder ausgebildet ist, die sich einerseits am Gehäuse (15) oder an einer Führung für ein Hilfsschaltwerk 44 und andererseits an einem an den Ver­klinkungshebel (50) angeformten Drehzapfen (51) ab­stützt.4. Electrical switching device according to one of the preceding claims, characterized in that the energy accumulator (48) is designed as a torsion spring, which is on the one hand on the housing (15) or on a guide for an auxiliary switching mechanism 44 and on the other hand on one of the latching lever (50) molded pivot (51) supports. 5. Elektrisches Schaltgerät nach einem der vorheri­gen Ansprüche, dadurch gekennzeichnet, daß zur Zurück­stellung der Auslösewippe (46) eine Rückholfeder (56) vorgesehen ist, welche die Auslösewippe (46) so beauf­schlagt, daß sie bestrebt ist, in Verklinkung mit dem Verklinkungshebel (50) zu gelangen.5. Electrical switching device according to one of the preceding claims, characterized in that for returning the release rocker (46) a return spring (56) is provided which acts on the release rocker (46) so that it strives to be latched in with the latch lever (50 ) to get. 6. Elektrisches Schaltgerät nach einem der vorheri­gen Ansprüche, dadurch gekennzeichnet, daß eine Rück­stellfeder (54) vorgesehen ist, mit deren Hilfe der Aus­lösestößel (61) des Fehlerstromauslösers in seine Ruhe­lage rückstellbar ist.6. Electrical switching device according to one of the preceding claims, characterized in that a return spring (54) is provided, by means of which the trigger plunger (61) of the residual current release can be reset to its rest position. 7. Elektrisches Schaltgerät nach Anspruch 6, da­durch gekennzeichnet, daß die Rückstellfeder nach er­folgter Auslösung zwecks Rückstellung des Auslösestößel (61) durch den Klinkenhebel (40) des Hauptschaltwerkes beaufschlagt ist.7. Electrical switching device according to claim 6, characterized in that the return spring is actuated after the release for the purpose of resetting the release plunger (61) by the latch lever (40) of the main switching mechanism. 8. Elektrisches Schaltgerät nach einem der vorheri­gen Ansprüche, dadurch gekennzeichnet, daß der Kontakt­arm (34) eine Schulter (342) besitzt, welche beim Abhe­ben des beweglichen Kontaktstückes (30) den Verklin­kungshebel (50) in seine Ruhelage zurückstellt und gleichzeitig den Kraftspeicher (48) spannt.8. Electrical switching device according to one of the preceding claims, characterized in that the contact arm (34) has a shoulder (342) which, when the movable contact piece (30) is lifted, resets the latching lever (50) into its rest position and at the same time the energy store (48 ) spans. 9. Elektrisches Schaltgerät nach einem der vorheri­gen Ansprüche, dadurch gekennzeichnet, daß die Rück­stellfeder als U-förmig gebogene Blattfeder ausgebildet ist, die um einen Drehzapfen (53) schwenkbar angeordnet ist.9. Electrical switching device according to one of the preceding claims, characterized in that the return spring is designed as a U-shaped curved leaf spring which is arranged pivotably about a pivot (53). 10. Elektrisches Schaltgerät nach einem der vorhe­rigen Ansprüche, dadurch gekennzeichnet, daß die Schalt­wippe (46) als Traverse mit einem außermittig, bezogen auf ihre Längsverdrehung, angeordneten Schwenklager (45) versehen ist.10. Electrical switching device according to one of the preceding claims, characterized in that the rocker switch (46) is provided as a traverse with an eccentric, with respect to its longitudinal rotation, arranged pivot bearing (45).
EP88116084A 1987-10-05 1988-09-29 Electric switch gear Expired - Lifetime EP0310943B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88116084T ATE103416T1 (en) 1987-10-05 1988-09-29 ELECTRICAL SWITCHING DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3733595 1987-10-05
DE19873733595 DE3733595A1 (en) 1987-10-05 1987-10-05 ELECTRICAL SWITCHGEAR

Publications (3)

Publication Number Publication Date
EP0310943A2 true EP0310943A2 (en) 1989-04-12
EP0310943A3 EP0310943A3 (en) 1990-06-20
EP0310943B1 EP0310943B1 (en) 1994-03-23

Family

ID=6337628

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88116084A Expired - Lifetime EP0310943B1 (en) 1987-10-05 1988-09-29 Electric switch gear

Country Status (4)

Country Link
EP (1) EP0310943B1 (en)
AT (1) ATE103416T1 (en)
DE (2) DE3733595A1 (en)
ES (1) ES2053666T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994022158A1 (en) * 1993-03-18 1994-09-29 Felten & Guilleaume Austria Ag Safety switch
CN101388307A (en) * 2007-09-11 2009-03-18 西门子公司 Handgrip bridge, failture current protection device and system comprising the failture current protection device and circuit protection switch

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19735413B4 (en) * 1997-08-14 2007-11-29 Siemens Ag Tripping device for a circuit breaker
EP0951045A3 (en) * 1998-04-14 2000-07-12 ABBPATENT GmbH Ground fault circuit braker

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908154A (en) * 1974-09-13 1975-09-23 Ite Imperial Corp Two pole ground fault circuit protector
FR2409592A1 (en) * 1977-11-21 1979-06-15 Legrand Sa Double action circuit breaker - consists of two interlocked modules with one acting on overloads and one on differential currents
FR2553572A1 (en) * 1983-10-13 1985-04-19 Ave Spa Improved differential breaker switch of reduced bulk
EP0143682A1 (en) * 1983-10-04 1985-06-05 Hager Electro S.A. Automatic circuit breakers, particularly earth fault and overload circuit breakers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2508428B2 (en) * 1975-02-27 1978-10-12 Brown, Boveri & Cie Ag, 6800 Mannheim Residual current circuit breaker
DE2651596C3 (en) * 1976-11-12 1979-05-10 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Residual current component combined with a miniature circuit breaker
AT374969B (en) * 1982-08-19 1984-06-25 Biegelmeier Gottfried CIRCUIT BREAKER WITH ERROR CURRENT RELEASE
DE3342469A1 (en) * 1983-11-24 1985-06-05 Bbc Brown Boveri & Cie ELECTRIC SWITCH

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908154A (en) * 1974-09-13 1975-09-23 Ite Imperial Corp Two pole ground fault circuit protector
FR2409592A1 (en) * 1977-11-21 1979-06-15 Legrand Sa Double action circuit breaker - consists of two interlocked modules with one acting on overloads and one on differential currents
EP0143682A1 (en) * 1983-10-04 1985-06-05 Hager Electro S.A. Automatic circuit breakers, particularly earth fault and overload circuit breakers
FR2553572A1 (en) * 1983-10-13 1985-04-19 Ave Spa Improved differential breaker switch of reduced bulk

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994022158A1 (en) * 1993-03-18 1994-09-29 Felten & Guilleaume Austria Ag Safety switch
AU676010B2 (en) * 1993-03-18 1997-02-27 Felten & Guilleaume Austria Ag Safety switch
CN101388307A (en) * 2007-09-11 2009-03-18 西门子公司 Handgrip bridge, failture current protection device and system comprising the failture current protection device and circuit protection switch

Also Published As

Publication number Publication date
ATE103416T1 (en) 1994-04-15
DE3733595A1 (en) 1989-04-20
EP0310943A3 (en) 1990-06-20
DE3888617D1 (en) 1994-04-28
ES2053666T3 (en) 1994-08-01
EP0310943B1 (en) 1994-03-23

Similar Documents

Publication Publication Date Title
EP0231732B1 (en) Circuit breaker for fault and conduction current protection
EP0303965B1 (en) Electric switchgear
DE102009007475A1 (en) Switching mechanism for a switching device with a remaining at a welded contact member and an opening operation in a Zwischenschaltstellung shift lever
EP0120836A1 (en) Electric safety switch for apparatus.
EP0103167B1 (en) Circuit breaker with leakage current release
DE4208716C2 (en) Circuit breaker
EP0315093A2 (en) Electric installation switchgear
EP2769399B1 (en) Range of multi-pole circuit breakers
DE4015979C2 (en) Switch combination for load switchgear
EP0310943B1 (en) Electric switch gear
DE3119165A1 (en) Automatic circuit breaker as a structural unit consisting of a line protection circuit breaker as well as auxiliary and signal switches
DE1126013B (en) Multipole overcurrent switch
EP1243013B1 (en) Simulation switch
EP0849759B1 (en) Switchgear for an electric installation
EP0731979B1 (en) Safety switch
WO2000067280A1 (en) Couplable circuit breaker
EP0556602A2 (en) Thermal trip device for electrical switchgear
DE102022204479B3 (en) Adapters for mounting accessories and electrical switches with such an adapter
WO2000067275A1 (en) Circuit breaker for multipolar release
EP1037238B1 (en) Over current circuit breaker
DE3247973A1 (en) METHOD FOR SECURING A DISCONNECTED LOW-VOLTAGE POWER SUPPLY AND SWITCHING DEVICE FOR CARRYING OUT THE METHOD
DE7300310U (en) Switches for switchboards in low-voltage electrical networks
DE3410340A1 (en) Meter preliminary automatic circuit breaker
DE2508428B2 (en) Residual current circuit breaker
CH547003A (en) NEUTRAL DISCONNECTING DEVICE FOR A TWO- OR MULTI-POLE DISCONNECTING DEVICE.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB IT LI SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

RHK1 Main classification (correction)

Ipc: H01H 83/22

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB IT LI SE

17P Request for examination filed

Effective date: 19901127

17Q First examination report despatched

Effective date: 19930311

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI SE

REF Corresponds to:

Ref document number: 103416

Country of ref document: AT

Date of ref document: 19940415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3888617

Country of ref document: DE

Date of ref document: 19940428

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940407

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2053666

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

EAL Se: european patent in force in sweden

Ref document number: 88116084.0

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19960814

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19960829

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19960904

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19960920

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970930

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970930

Ref country code: ES

Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES

Effective date: 19970930

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970930

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970930

BERE Be: lapsed

Owner name: ASEA BROWN BOVERI A.G.

Effective date: 19970930

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed

Ref document number: 88116084.0

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20001009

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20010824

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20010828

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20010829

Year of fee payment: 14

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020929

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020929

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030603

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20050912

Year of fee payment: 18

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070403