EP0053154B1 - Polarized, bistable relay - Google Patents

Polarized, bistable relay Download PDF

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Publication number
EP0053154B1
EP0053154B1 EP81901539A EP81901539A EP0053154B1 EP 0053154 B1 EP0053154 B1 EP 0053154B1 EP 81901539 A EP81901539 A EP 81901539A EP 81901539 A EP81901539 A EP 81901539A EP 0053154 B1 EP0053154 B1 EP 0053154B1
Authority
EP
European Patent Office
Prior art keywords
armature
relay
contact bridge
movable
polarized
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81901539A
Other languages
German (de)
French (fr)
Other versions
EP0053154A1 (en
Inventor
Rudolf Reiner
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.)
Hengstler GmbH
Original Assignee
Hengstler 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 Hengstler GmbH filed Critical Hengstler GmbH
Priority to AT81901539T priority Critical patent/ATE11841T1/en
Publication of EP0053154A1 publication Critical patent/EP0053154A1/en
Application granted granted Critical
Publication of EP0053154B1 publication Critical patent/EP0053154B1/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2227—Polarised relays in which the movable part comprises at least one permanent magnet, sandwiched between pole-plates, each forming an active air-gap with parts of the stationary magnetic circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/32—Latching movable parts mechanically
    • H01H50/326—Latching movable parts mechanically with manual intervention, e.g. for testing, resetting or mode selection

Definitions

  • the present invention relates to a polarized, bistable relay for switching high currents, having a magnet system which has a coil former with a core therein, yoke stirrups connected to the core ends and an armature which is pivotably mounted about an axis between the two free ends of the yoke stirrups consists of two plates holding a permanent magnet between them (H-armature), the ends of which, in the two switching positions of the armature, alternately rest on the free ends of the yoke bow, with a contact bridge arrangement which can be displaced by the armature against spring force and which extends in the space between stationary pairs of contact pieces. and is arranged movably, connecting brackets leading from the stationary contact pieces to the connecting terminals of the relay.
  • H-armature permanent magnet between them
  • Such a relay is known from CH-A-522 285.
  • the movable contact bridge is activated in that the pivotable H-shaped armature is provided with an extension, behind which a pin engages, which is provided on a displaceable rod.
  • This rod which is displaceable in the axial direction, carries a coupling piece which is the carrier for the movable contact bridge.
  • This contact bridge is designed such that two fixed mating contacts can be bridged, so that in this way, depending on the pivoting position of the H-shaped armature, a common mating contact is connected to one of two other mating contacts.
  • a carrier (28) for the contact bridge arrangement which consists of a contact bridge (14), is rigidly connected to the armature plate (10) facing away from the magnet system on the side facing away from the permanent magnet (8)
  • Spring force on a cylindrical pin (15) is displaceable in its axial direction, which is fixedly mounted in a recess of the carrier (28).
  • the contact bridge which is displaceably mounted along the intended cylindrical pin, is also pivoted at the same time as the H-shaped armature is pivoted, so that the movable contact bridge between the fixed contact pieces is guided along an arc of a circle. While avoiding additional friction losses and achieving a very compact design, this pivoting of the movable contact bridge allows a slight mutual displacement of the movable and immovable contact pieces to one another, so that the surfaces of the movable and immovable contact pieces can be kept clean even over long periods of time.
  • the relay according to the invention has a housing 1, in which 22 clamp clamps are inserted from the hollow terminals 21 and the cheese head screws. These tension clamps are connected via connecting brackets 23 to corresponding fixed contact pieces 26, 27.
  • a first yoke bracket 3 of the drive system is fastened in the housing 1 with the aid of cylinder screws 18.
  • the drive system also has a coil former 2 and a yoke bracket 4 arranged on the other side of the coil former 2, which yoke bracket is fastened to the housing 1 by means of a countersunk screw 19.
  • the magnetic circuit to the core 5 leading through the coil former 2 is produced via the yoke brackets 3, 4.
  • the magnetic circuit closes via a permanent magnet 8, which is part of a pivotable armature 9, which is pivotably mounted in a pivot point 24 relative to a fixed bearing plate 10.
  • Two plates 9 ', 9 "hold the permanent magnet between them in such a way that a so-called H-armature is formed.
  • a armature 28 for the contact bridge arrangement is rigidly connected to the armature 9 and has a lever 7 which is passed through a recess in the Hood 20 of the relay protrudes outwards in order to provide a switch position indicator and a manual switching option for armature 9.
  • the connections of the coil former 2 can be connected to an electronic excitation circuit via solder connections 6.
  • the contact system with double contact interruption consists in that a cylindrical pin 15 is fastened in a recess in the carrier 28, along which a contact bridge 14 is axially displaceable.
  • the movable contact bridge 14 is acted upon from both sides by compression springs 16 which act on corresponding insulating disks 17 on each end face of the contact bridge 14.
  • the movable contact bridge 14 is in direct contact with the immovable contact pieces 27 arranged on this side, the feed to the tension clamp clamps taking place via assigned connection brackets 23.
  • the movable contact bridge 14 is pressed against the associated immovable contact pieces 27 under the force of one of the two compression springs 16.
  • the movable contact bridge 14 can thus be pivoted due to the mounting on the carrier 28 in the intermediate space 25 between the contact pieces 26, 27.
  • FIG. 2 It can be seen from FIG. 2 that a total of three drawbar terminals with three angular contacts 11, 12, 13 are provided, so that the connections for a changeover switch can be formed with the aid of these terminals.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Relay Circuits (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

The relay, intended to switch high currents/powers, is comprised of a coil body (2) with a core (5) and an associated yoke (4) acting on an armature (9) pivotingly arranged within the relay casing, which actuates the contacts according to its position. In order to switch high currents/powers by means of electronic control circuits, the relay is provided with a polarised driving system having a permanent magnet (8) and a switching system having a double contact cut-off.

Description

Die vorliegende Erfindung bezieht sich auf ein polarisiertes, bistabiles Relais zum Schalten hoher Ströme, mit einem Magnetsystem, das einen Spulenkörper mit darinliegendem Kern, mit den Kernenden verbundene Jochbügel und einen zwischen den beiden freien Enden der Jochbügel um eine Achse schwenkbar gelagerten Anker aufweist, der aus zwei zwischen sich einen Permanentmagneten halternden Platten besteht (H-Anker), deren Enden in den beiden Schaltstellungen des Ankers jeweils abwechselnd an den freien Enden der Jochbügel anliegen, mit einer vom Anker gegen Federkraft verschiebbaren Kontaktbrückenanordnung, die im Raum zwischen orstfesten Kontaktstückpaaren hin- und herbewegbar angeordnet ist, wobei von den ortsfesten Kontaktstücken Verbindungsbügel zu den Anschlußklemmen des Relais führen.The present invention relates to a polarized, bistable relay for switching high currents, having a magnet system which has a coil former with a core therein, yoke stirrups connected to the core ends and an armature which is pivotably mounted about an axis between the two free ends of the yoke stirrups consists of two plates holding a permanent magnet between them (H-armature), the ends of which, in the two switching positions of the armature, alternately rest on the free ends of the yoke bow, with a contact bridge arrangement which can be displaced by the armature against spring force and which extends in the space between stationary pairs of contact pieces. and is arranged movably, connecting brackets leading from the stationary contact pieces to the connecting terminals of the relay.

Ein derartiges Relais ist aus der CH-A-522 285 bekannt. Die Aktivierung der beweglichen Kontaktbrücke erfolgt in diesem Fall dadurch, daß der verschwenkbare H-förmige Anker mit einem Fortsatz versehen ist, hinter welchen ein Zapfen greift, der an einer verschiebbaren Stange vorgesehen ist. Diese in axialer Richtung verschiebbare Stange trägt dabei ein Kupplungsstück, welches der Träger für die bewegliche Kontaktbrücke ist. Diese Kontaktbrücke ist dabei derart ausgebildet, daß jeweils zwei feststehende Gegenkontakte überbrückt werden können, so daß auf diese Weise, je nach der Schwenkposition des H-förmigen Ankers, ein gemeinsamer Gegenkontakt mit einem von zwei anderen Gegenkontakten verbunden sind.Such a relay is known from CH-A-522 285. In this case, the movable contact bridge is activated in that the pivotable H-shaped armature is provided with an extension, behind which a pin engages, which is provided on a displaceable rod. This rod, which is displaceable in the axial direction, carries a coupling piece which is the carrier for the movable contact bridge. This contact bridge is designed such that two fixed mating contacts can be bridged, so that in this way, depending on the pivoting position of the H-shaped armature, a common mating contact is connected to one of two other mating contacts.

Bei diesem bekannten bistabilen Relais erweist es sich jedoch als nachteilig, daß zur Betätigung der Kontaktbrücke die Schwenkbewegung des H-förmigen Ankers zuerst in eine Linearbewegung umgesetzt wird. Die Umsetzung der Schwenkbewegung in eine Linearbewegung bewirkt nicht nur das Auftreten zusätzlicher Reibungsverluste, sondern es wird auch das Gesamtvolumen des polarisierten Relais auf diese Weise vergrößert.In this known bistable relay, however, it proves to be disadvantageous that the pivoting movement of the H-shaped armature is first converted into a linear movement in order to actuate the contact bridge. The conversion of the swivel movement into a linear movement not only causes additional friction losses to occur, but the total volume of the polarized relay is also increased in this way.

Es ist die Aufgabe der vorliegenden Erfindung, das bistabile Relais der eingangs genannten Art dahingehend weiterzubilden, daß durch weitgehende Vermeidung von Reibungsverlusten eine hohe Ansprechempfindlichkeit gewährleistet ist, während gleichzeitig die Gesamtbauweise des Relais sehr klein gehalten werden soll.It is the object of the present invention to develop the bistable relay of the type mentioned in such a way that a high sensitivity is ensured by largely avoiding frictional losses, while at the same time the overall construction of the relay is to be kept very small.

Erfindungsgemäß wird dies dadurch erreicht, daß mit der vom Magnetsystem abgewandt liegenden Ankerplatte (10) an der vom Permanentmagneten (8) abgewandt liegenden Seite ein Träger (28) für die Kontaktbrückenanordnung starr verbunden ist, die aus einer Kontaktbrücke (14) besteht, die gegen Federkraft auf einem Zylinderstift (15) in dessen Achsrichtung verschiebbar ist, der in einer Ausnehmung des Trägers (28) fest gelagert ist.This is achieved according to the invention in that a carrier (28) for the contact bridge arrangement, which consists of a contact bridge (14), is rigidly connected to the armature plate (10) facing away from the magnet system on the side facing away from the permanent magnet (8) Spring force on a cylindrical pin (15) is displaceable in its axial direction, which is fixedly mounted in a recess of the carrier (28).

Im Rahmen der vorliegenden Erfindung wird die entlang des vorgesehenen Zylinderstiftes verschiebbar gelagerte Kontaktbrücke gleichzeitig bei der Verschwenkung des H-förmig ausgebildeten Ankers mitverschwenkt, so daß die bewegliche Kontaktbrücke zwischen den feststehenden Kontaktstücken entlang eines Kreisbogens geführt ist. Bei Vermeidung zusätzlicher Reibungsverluste und bei Erzielung einer sehr gedrungenen Bauweise erlaubt diese Verschwenkung der beweglichen Kontaktbrücke eine geringfügige gegenseitige Verschiebung der beweglichen und unbeweglichen Kontaktstücke zueinander, so daß auf diese Weise die Oberflächen der beweglichen und unbeweglichen Kontaktstücke selbst über lange Zeiträume hinweg sauber gehalten werden können.In the context of the present invention, the contact bridge, which is displaceably mounted along the intended cylindrical pin, is also pivoted at the same time as the H-shaped armature is pivoted, so that the movable contact bridge between the fixed contact pieces is guided along an arc of a circle. While avoiding additional friction losses and achieving a very compact design, this pivoting of the movable contact bridge allows a slight mutual displacement of the movable and immovable contact pieces to one another, so that the surfaces of the movable and immovable contact pieces can be kept clean even over long periods of time.

Vorteilhafte Weiterbildungen der Erfindung enthalten die Unteransprüche 2 und 3.Advantageous developments of the invention contain subclaims 2 and 3.

Im folgenden soll die Erfindung anhand eines Ausführungsbeispiels näher erläutert werden. Es zeigt

  • Fig. 1 einen Mittenlängsschnitt durch das erfindungsgemäße Relais entlang der Linie I-I von Fig. 2,
  • Fig. 2 eine Draufsicht auf das Relais in Richtung des Pfeils 11 von Fig. 3, und
  • Fig. 3 eine Draufsicht auf das Relais in Richtung des Pfeils 111 von Fig. 2.
In the following, the invention will be explained in more detail using an exemplary embodiment. It shows
  • 1 is a central longitudinal section through the relay according to the invention along the line II of Fig. 2,
  • Fig. 2 is a plan view of the relay in the direction of arrow 11 of Fig. 3, and
  • 3 is a top view of the relay in the direction of arrow 111 of FIG. 2.

Das erfindungsgemäße Relais besitzt ein Gehäuse 1, in welches aus den Hohlklemmen 21 und den Zylinderschrauben 22 Zugbügelklemmen eingesetzt sind. Diese Zugbügelklemmen sind über Verbindungsbügel 23 mit entsprechenden ortsfesten Kontaktstücken 26,27 verbunden. In dem Gehäuse 1 ist mit Hilfe von Zylinderschrauben 18 ein erster Jochbügel 3 des Antriebssystems befestigt. Das Antriebssystem weist außerdem einen Spulenkörper 2 und einen auf der anderen Seite des Spulenkörpers 2 angeordneten Jochbügel 4 auf, welcher mit Hilfe einer Senkschraube 19 am Gehäuse 1 befestigt ist. Über die Jochbügel 3, 4 wird der magnetische Kreis zu den durch den Spulenkörper 2 führenden Kern 5 hergestellt. Der magnetische Kreis schließt sich über einen Permanentmagneten 8, welcher Teil eines schwenkbaren Ankers 9 ist, der gegenüber einer feststehenden Lagerplatte 10 in einem Schwenkpunkt 24 schwenkbar gelagert ist. Den Permanentmagneten haltern zwei Platten 9', 9" zwischen sich, derart, daß ein sog. H-Anker entsteht. Mit dem Anker 9 ist ein Träger 28 für die Kontaktbrückenanordnung starr verbunden, welcher einen Hebel 7 aufweist, der durch eine Ausnehmung in der Haube 20 des Relais nach außen ragt, um auf diese Weise eine Schaltstellungsanzeige und eine Handschaltungsmöglichkeit des Ankers 9 zu ergeben. Die Anschlüsse des Spulenkörpers 2 sind über Lötanschlüsse 6 an eine elektronische Erregerschaltung anschließbar.The relay according to the invention has a housing 1, in which 22 clamp clamps are inserted from the hollow terminals 21 and the cheese head screws. These tension clamps are connected via connecting brackets 23 to corresponding fixed contact pieces 26, 27. A first yoke bracket 3 of the drive system is fastened in the housing 1 with the aid of cylinder screws 18. The drive system also has a coil former 2 and a yoke bracket 4 arranged on the other side of the coil former 2, which yoke bracket is fastened to the housing 1 by means of a countersunk screw 19. The magnetic circuit to the core 5 leading through the coil former 2 is produced via the yoke brackets 3, 4. The magnetic circuit closes via a permanent magnet 8, which is part of a pivotable armature 9, which is pivotably mounted in a pivot point 24 relative to a fixed bearing plate 10. Two plates 9 ', 9 "hold the permanent magnet between them in such a way that a so-called H-armature is formed. A armature 28 for the contact bridge arrangement is rigidly connected to the armature 9 and has a lever 7 which is passed through a recess in the Hood 20 of the relay protrudes outwards in order to provide a switch position indicator and a manual switching option for armature 9. The connections of the coil former 2 can be connected to an electronic excitation circuit via solder connections 6.

Das Kontaktsystem mit doppelter Kontaktunterbrechung besteht darin, daß in einer Ausnehmung des Trägers 28 ein Zylinderstift 15 befestigt ist, entlang welchem eine Kontaktbrücke 14 axial verschiebbar gelagert ist. Die bewegliche Kontaktbrücke 14 wird von beiden Seiten her von Druckfedern 16 beaufschlagt, welche auf entsprechende Isolierscheiben 17 an jeweils einer Stirnseite der Kontaktbrücke 14 wirken. In der in Fig. 3 gezeigten Stellung liegt die bewegliche Kontaktbrücke 14 unmittelbar an den auf dieser Seite angeordneten unbeweglichen Kontaktstücken 27 an, wobei die Zuführung zu den Zugbügelklemmen über zugeordnete Verbindungsbügel 23 erfolgt. Das Anpressen der beweglichen Kontaktbrücke 14 an den zugeordneten unbeweglichen Kontaktstücken 27 erfolgt unter der Kraft einer der beiden Druckfedern 16.The contact system with double contact interruption consists in that a cylindrical pin 15 is fastened in a recess in the carrier 28, along which a contact bridge 14 is axially displaceable. The movable contact bridge 14 is acted upon from both sides by compression springs 16 which act on corresponding insulating disks 17 on each end face of the contact bridge 14. In the position shown in FIG. 3, the movable contact bridge 14 is in direct contact with the immovable contact pieces 27 arranged on this side, the feed to the tension clamp clamps taking place via assigned connection brackets 23. The movable contact bridge 14 is pressed against the associated immovable contact pieces 27 under the force of one of the two compression springs 16.

Die bewegliche Kontaktbrücke 14 ist somit aufgrund der Lagerung am Träger 28 im Zwischenraum 25 zwischen den Kontaktstücken 26, 27 verschwenkbar.The movable contact bridge 14 can thus be pivoted due to the mounting on the carrier 28 in the intermediate space 25 between the contact pieces 26, 27.

Anhand von Fig. 2 ist erkennbar, daß insgesamt drei Zugbügelklemmen mit drei Winkelkontakten 11, 12, 13 vorgesehen sind, so daß mit Hilfe dieser Klemmen die Anschlüsse für einen Umschalter gebildet werden können.It can be seen from FIG. 2 that a total of three drawbar terminals with three angular contacts 11, 12, 13 are provided, so that the connections for a changeover switch can be formed with the aid of these terminals.

Claims (3)

1. A polarized bistabile relay for switching high currents, comprising a magnetic system with a coil form (2) having enclosed therein a core (5), yokes (3, 4) connected to the core ends, and an armature (9) swinging about an axle, the armature consisting of two plates (9', 9") supporting between themselves a permanent magnet (H-armature), the ends of which being alternately adjacent to the free ends of the yokes (3, 4) in the two operating positions of the armature (9), and with a contact bridge arrangement (14) movable by the armature (9) against the elastic force and being movable to- and-fro in the space between pairs of stationary contact pieces (26, 27) whereby from the stationary contact pieces (26, 27) connecting yokes (23) lead to the connecting terminals (21, 22) of the relay, characterized in that to the anchor plate (9") turnes away from the magnetic system and to the side turnes away from the permanent magnet (8) a support (28) for the contact bridge arrangement is rigidly connected, which consists of a contact bridge (14) movable against an elastic force in the direction of axis of a cylinder pin (15) rigidly supported in the recess of the support (28).
2. A polarized bistable relay according to the claim 1, characterized in that the cylinder pin (15) comprises two pressure springs (26) pressing from both sides against the movable contact bridge (14).
3. A polarized bistable relay according to the claims 1 or 2, characterized in that the connecting terminals (21, 22) are formed as tension bow terminals (21,22).
EP81901539A 1980-06-04 1981-06-03 Polarized, bistable relay Expired EP0053154B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81901539T ATE11841T1 (en) 1980-06-04 1981-06-03 POLARIZED BI-STABLE RELAY.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803021184 DE3021184A1 (en) 1980-06-04 1980-06-04 RELAY TO SWITCH HIGH CURRENTS
DE3021184 1980-06-04

Publications (2)

Publication Number Publication Date
EP0053154A1 EP0053154A1 (en) 1982-06-09
EP0053154B1 true EP0053154B1 (en) 1985-02-13

Family

ID=6103955

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81901539A Expired EP0053154B1 (en) 1980-06-04 1981-06-03 Polarized, bistable relay

Country Status (5)

Country Link
EP (1) EP0053154B1 (en)
AT (1) ATE11841T1 (en)
DE (1) DE3021184A1 (en)
HU (1) HU186779B (en)
WO (1) WO1981003578A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3323266C2 (en) * 1983-06-28 1987-01-02 Hengstler GmbH, 7209 Wehingen Electromagnetic relay with changeover spring
DE3348068C2 (en) * 1983-06-28 1988-02-04 Hengstler Bauelemente Gmbh, 7209 Wehingen, De Electromagnetic relay whose changeover spring has a special construction
DE3404462C2 (en) * 1984-02-08 1987-02-05 Hengstler GmbH, Geschäftsbereich Haller-Relais, 7209 Wehingen Polarized relay with protection against external magnetic influences
CN100550246C (en) * 2006-05-30 2009-10-14 浙江正泰电器股份有限公司 The sealed type electromagnetic relay that has the manual test switch
DE102010021182B4 (en) 2010-05-21 2022-09-15 E. Dold & Söhne Gmbh & Co. Kg Electromagnetic relay

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US744719A (en) * 1902-01-31 1903-11-24 Duane H Church Balance-staff.
DE942406C (en) * 1954-03-07 1956-05-03 Siemens Ag Electromagnetic relay with spring-loaded armature
US3097328A (en) * 1955-07-18 1963-07-09 Comar Electric Company Electromagnetic relay
DE1279838B (en) * 1964-12-16 1968-10-10 Heinrich List Electromagnetic relay
DE1917868U (en) * 1965-02-17 1965-06-16 Max Stegmann SWITCH WITH DOUBLE-INTERRUPTING FRICTIONAL SWITCHING CONTACT ARRANGEMENT.
CH522285A (en) * 1970-02-20 1972-06-15 Zellweger Uster Ag Power surge switch
GB1344463A (en) * 1970-07-02 1974-01-23 Expert Ind Controls Ltd Electro-magnetic devices
YU36417B (en) * 1975-12-08 1983-06-30 Iskra Zdruzeno Podjetje Kranj Polarized electromagnetic power switch
FR2358006A1 (en) * 1976-07-09 1978-02-03 Manuf Fse App Electr DEVICE FORMING ELECTRO-MAGNET, SUCH AS THAT OF A RELAY
DE2830390C2 (en) * 1978-07-11 1985-01-03 W. Gruner GmbH & Co Relaisfabrik, KG, 7209 Wehingen relay

Also Published As

Publication number Publication date
WO1981003578A1 (en) 1981-12-10
DE3021184A1 (en) 1982-02-04
ATE11841T1 (en) 1985-02-15
EP0053154A1 (en) 1982-06-09
HU186779B (en) 1985-09-30

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