EP0727802A2 - ELectromagnetic switching device, in particular contactor - Google Patents

ELectromagnetic switching device, in particular contactor Download PDF

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Publication number
EP0727802A2
EP0727802A2 EP95119906A EP95119906A EP0727802A2 EP 0727802 A2 EP0727802 A2 EP 0727802A2 EP 95119906 A EP95119906 A EP 95119906A EP 95119906 A EP95119906 A EP 95119906A EP 0727802 A2 EP0727802 A2 EP 0727802A2
Authority
EP
European Patent Office
Prior art keywords
housing
coil
switching device
electromagnetic switching
spool body
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.)
Withdrawn
Application number
EP95119906A
Other languages
German (de)
French (fr)
Other versions
EP0727802A3 (en
Inventor
Max Hufschmid
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.)
Rockwell Automation Switzerland GmbH
Original Assignee
Sprecher und Schuh AG
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 Sprecher und Schuh AG filed Critical Sprecher und Schuh AG
Publication of EP0727802A2 publication Critical patent/EP0727802A2/en
Publication of EP0727802A3 publication Critical patent/EP0727802A3/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings
    • H01H50/443—Connections to coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • H01H11/0031—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different types or orientation of connections to 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
    • H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
    • H01H50/305—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature damping vibration due to functional movement of armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings
    • H01H50/46—Short-circuited conducting sleeves, bands, or discs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/0264—Protective covers for terminals

Definitions

  • the present invention relates to an electromagnetic switching device, in particular a contactor with an electromagnet fastened in a housing and with at least one magnetic coil and its coil former, which bears only in one direction and which projects in the housing and which fastens in the housing.
  • an electromagnetic switching device in which a coil body carrying a magnetic coil is provided either with two coil terminals projecting in only one direction, or with three coil terminals, with three coil terminals two in one direction and one in the opposite direction Direction aligned, but is electrically connected to one of the other two.
  • the magnetic coil can either be connected from one side only or with one connection from both sides.
  • the coil body carrying the magnetic coil can only be installed in the housing in a certain position.
  • the contactor when the contactor is assembled with another device, in particular with a circuit breaker, as is known, for example, from FR-A1-2695754, the coil terminals are in an inaccessible position on the side of the contactor facing the circuit breaker if the contactor was intended for assembly with an overcurrent relay and / or a fuse as short-circuit protection.
  • the contactor can be optionally assembled with a device to be connected to one of the two sides of the contactor, such as a fuse or a circuit breaker, with the label either being turned upside down in one of the two cases, or offset by 180 ° must become.
  • the object of the present invention is to develop an electromagnetic switching device of the type mentioned in the introduction, in which the coil connections of the electromagnetic switching device can be adapted to the mounting arrangement of the switching device in a simple and economically advantageous manner, without having to accept an upside-down lettering have to.
  • the object is achieved in that the coil body can be inserted into the housing in two positions offset by 180 ° about the winding axis of the magnet coil.
  • This simple and economically advantageous measure allows the coil connections to be arranged on the easily accessible side of the electromagnetic switching device, the labeling of the switching device itself remaining unchanged.
  • both the housing and the coil body are provided at the abutting positions with effective, interlocking positioning parts in both 180 ° positions of the coil body.
  • the positioning parts secure the position of the coil body in the housing in the two positions of the coil body offset by 180 °.
  • FIG. 1 shows the escape pattern of the most essential parts of an electromagnetic switching device housed in the lower part 1 of the housing.
  • the core 2 of the electromagnet can be fastened by a metal strip 4 in the lower part 1 after mounting two resilient damping rods 3.
  • Short-circuit rings 5 with elastic damping rods 6 are snapped onto the two legs of the core 2.
  • a bobbin 7 is shown in Fig.1 without winding.
  • two coil connecting pieces 8 projecting only in one direction are provided on the coil former 7.
  • the connecting wires, not shown, can be connected to the coil connecting pieces 8 with clamping screws 9 and clamping claws 10.
  • a cover 11 is used to cover the live parts.
  • the coil body 7 can be pushed into the middle leg of the core 2 in two positions offset by 180 ° about the winding axis of the magnet coil and can thus be accommodated in the housing. Both the lower part 1 of the housing and the coil body 7 are on Provide the abutting points with effective, interlocking positioning parts 12 in both 180 ° offset positions of the bobbin 7.
  • FIG. 2 shows the cross section of a complete electromagnetic switching device with coil connecting pieces 8 on the left in the drawing.
  • the coil former 7 is clamped and held in the housing by the upper part 13 of the housing.
  • the armature 14 with the movable contact pieces 15 and the fixed contact pieces 16 are accommodated in the upper part 13 of the housing, to name only the most essential parts.
  • the upper part 13 is fastened to the lower part 1 of the housing by means not shown.
  • FIG. 3 the electromagnetic switching device shown in cross section in FIG. 2 is visible in a top view with the upper part 13 removed. In this position, the bobbin 7 can be pulled out of the lower part 1 of the housing. In Figure 3 it can be clearly seen that the coil connection pieces 8 are on the left side of the housing.
  • FIG. 4 shows the same electromagnetic switching device in cross section as in FIG. 2.
  • the coil connection pieces 8 are on the right and not on the left side of the switching device and that the entire coil body 7 is compared with that in FIG shown bobbin 7 is offset or rotated by 180 ° about the winding axis of the solenoid 17.
  • FIG. 5 shows the electromagnetic switching device shown in cross section in FIG. 4 without an upper part 13. It can be clearly seen from the comparison of FIGS. 3 and 5 that the bobbin 7 has been moved from the position shown in FIG. 3 by shifting around the winding axis of the magnetic coil 17 by 180 ° into the position visible in FIG. When the bobbin 7 is displaced by 180 ° about the winding axis of the magnetic coil 17, the position of the lower part 1 and the upper part 13 of the housing remains unchanged. The inscriptions on the surface 18 of the housing remain unchanged despite the position of the coil connecting pieces 8 changed by 180 °.
  • the electromagnetic switching device described is suitable for assembly, for example with a fuse on one side of the switching device or alternatively with a circuit breaker on the other side of the switching device with the same labeling of the switching device and with easily accessible coil connecting pieces 8 on the free side of the switching device.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Breakers (AREA)

Abstract

The device has an electromagnet fastened in a housing (1). It also has a spool body (7) fastened in the housing (1). The spool body (7) carries at least one magnet coil (17) and has a spool connection piece extending in only one direction. The spool body (17) is arranged to be inserted in two positions in the housing (1) 180 degrees offset from the winding axis of the magnet coil (17). Preferably both the housing (1) and the spool body (7) are provided with inter-engaging locating parts (12). The latter are effective at points interacting with the 180 degrees offset points of the spool body (7).

Description

Die vorliegende Erfindung betrifft ein elektromagnetisches Schaltgerät, insbesondere Schütz mit einem in einem Gehäuse befestigten Elektromagneten und mit einem mindestens eine Magnetspule und deren nur in einer Richtung vorspringenden Spulenanschlusstücke tragenden, im Gehäuse befestigten Spulenkörper.The present invention relates to an electromagnetic switching device, in particular a contactor with an electromagnet fastened in a housing and with at least one magnetic coil and its coil former, which bears only in one direction and which projects in the housing and which fastens in the housing.

Aus der DE-A1-4406682 ist ein elektromagnetisches Schaltgerät bekannt, bei welchem ein eine Magnetspule tragender Spulenkörper entweder mit zwei in nur einer Richtung vorspringenden Spulenklemmen, oder mit drei Spulenklemmen vorgesehen ist, wobei bei drei Spulenklemmen zwei in einer Richtung und eine in die entgegengesetzte Richtung ausgerichtet, aber mit einer der anderen beiden elektrisch leitend verbunden ist. Bei dieser Magnetspulenanordnung kann die Magnetspule entweder nur von einer Seite oder mit je einem Anschluss von beiden Seiten her angeschlossen werden. Der die Magnetspule tragende Spulenkörper ist nur in einer bestimmten Lage in das Gehäuse einbaubar. Der Nachteil dieser Anordnung besteht darin, dass beim Zusammenbau des Schützes mit einem anderen Gerät, insbesondere mit einem Leistungsschalter, wie beispielsweise aus der FR-A1-2695754 vorbekannt ist, die Spulenklemmen in einer unzugänglichen Lage, an der dem Leistungsschalter zugekehrten Seite des Schützes liegen, wenn das Schütz für den Zusammenbau mit einem Ueberstromrelais und/oder einer Sicherung als Kurzschlusschutz vorgesehen war. Das Schütz ist bei dieser Ausführungsart wahlweise mit einer an einer der beiden Seiten des Schützes anzuschliessenden Einrichtung, wie beispielsweise mit einer Sicherung oder mit einem Leistungsschalter zusammenbaubar, wobei die Beschriftung in einem der beiden Fällen entweder auf den Kopf gestellt wird, oder um 180° versetzt werden muss.From DE-A1-4406682 an electromagnetic switching device is known in which a coil body carrying a magnetic coil is provided either with two coil terminals projecting in only one direction, or with three coil terminals, with three coil terminals two in one direction and one in the opposite direction Direction aligned, but is electrically connected to one of the other two. With this magnetic coil arrangement, the magnetic coil can either be connected from one side only or with one connection from both sides. The coil body carrying the magnetic coil can only be installed in the housing in a certain position. The disadvantage of this arrangement is that when the contactor is assembled with another device, in particular with a circuit breaker, as is known, for example, from FR-A1-2695754, the coil terminals are in an inaccessible position on the side of the contactor facing the circuit breaker if the contactor was intended for assembly with an overcurrent relay and / or a fuse as short-circuit protection. In this embodiment, the contactor can be optionally assembled with a device to be connected to one of the two sides of the contactor, such as a fuse or a circuit breaker, with the label either being turned upside down in one of the two cases, or offset by 180 ° must become.

Aufgabe der vorliegenden Erfindung ist es, ein elektromagnetisches Schaltgerät der eingangs erwähnten Art zu entwickeln, bei welchem die Spulenanschlüsse des elektromagnetischen Schaltgerätes auf eine einfache und wirtschaftlich vorteilhaften Weise der Einbauanordnung des Schaltgerätes angepasst werden können, ohne eine auf den Kopf gestellte Beschriftung in Kauf nehmen zu müssen.The object of the present invention is to develop an electromagnetic switching device of the type mentioned in the introduction, in which the coil connections of the electromagnetic switching device can be adapted to the mounting arrangement of the switching device in a simple and economically advantageous manner, without having to accept an upside-down lettering have to.

Die gestellte Aufgabe ist dadurch gelöst, dass der Spulenkörper in zwei um die Wickelachse der Magnetspule 180° versetzten Stellungen in das Gehäuse einsetzbar ist. Durch diese einfache und wirtschaftlich vorteilhafte Massnahme können die Spulenanschlüsse an der gut zugänglichen Seite des elektromagnetischen Schaltgerätes angeordnet werden, wobei die Beschriftung des Schaltgerätes selbst unverändert bleibt.The object is achieved in that the coil body can be inserted into the housing in two positions offset by 180 ° about the winding axis of the magnet coil. This simple and economically advantageous measure allows the coil connections to be arranged on the easily accessible side of the electromagnetic switching device, the labeling of the switching device itself remaining unchanged.

Vorteilhafterweise sind sowohl das Gehäuse als auch der Spulenkörper an den aneinanderstossenden Stellen mit in beiden 180° versetzten Lagen des Spulenkörpers wirksamen, ineinandergreifenden Positionierungsteilen versehen. Die Positionierungsteile sichern in den beiden, um 180° versetzten Stellungen des Spulenkörpers die Lage des Spulenkörpers im Gehäuse.Advantageously, both the housing and the coil body are provided at the abutting positions with effective, interlocking positioning parts in both 180 ° positions of the coil body. The positioning parts secure the position of the coil body in the housing in the two positions of the coil body offset by 180 °.

Im folgenden wird anhand der beiliegenden Zeichnungen ein Ausführungsbeispiel der Erfindung näher beschrieben. Es zeigen:

Fig.1
ein Fluchtbild des unteren Teiles eines elektromagnetischen Schaltgerätes,
Fig.2
den Querschnitt eines elektromagnetischen Schaltgerätes mit in der Zeichnung links liegenden Spulenanschlusstücken,
Fig.3
die Draufsicht auf den Unterteil dieses Schaltgerätes,
Fig.4
den Querschnitt eines elektromagnetischen Schaltgerätes mit in der Zeichnung rechts liegenden Spulenanschlusstücken und
Fig5.
die Draufsicht auf den Unterteil dieses Schaltgerätes.
In the following an embodiment of the invention will be described with reference to the accompanying drawings. Show it:
Fig. 1
an escape image of the lower part of an electromagnetic switching device,
Fig. 2
the cross section of an electromagnetic switching device with coil connection pieces on the left in the drawing,
Fig. 3
the top view of the lower part of this switching device,
Fig. 4
the cross section of an electromagnetic switching device with the right in the drawing coil connectors and
Fig5.
the top view of the lower part of this switching device.

Fig.1 zeigt das Fluchtbild der im Unterteil 1 des Gehäuses untergebrachten, wesentlichsten Teile eines elektromagnetischen Schaltgerätes. Der Kern 2 des Elektromagneten ist nach Montage von zwei federnden Dämpfungsstäbchen 3 durch einen Metallstreifen 4 im Unterteil 1 befestigbar. An den beiden Schenkeln des Kernes 2 sind Kurzschlussringe 5 mit elastischen Dämpfungsstäbchen 6 eingeschnappt. Ein Spulenkörper 7 ist in Fig.1 ohne Wicklung dargestellt. Für die beiden Wicklungsenden sind am Spulenkörper 7 zwei nur in einer Richtung vorspringenden Spulenanschlusstücke 8 vorgesehen. Mit Klemmschrauben 9 und Klemmpratzen 10 können die nicht dargestellten Anschlussdrähte an den Spulenanschlusstücken 8 angeschlossen werden. Zur Abdeckung der spannungführenden Teile dient eine Abdeckhaube 11. Der Spulenkörper 7 kann in zwei um die Wickelachse der Magnetspule 180° versetzten Stellungen auf den mittleren Schenkel des Kernes 2 gestossen und so im Gehäuse untergebracht werden. Sowohl der Unterteil 1 des Gehäuses, als auch der Spulenkörper 7 sind an den aneinanderstossenden Stellen mit in beiden 180° versetzten Lagen des Spulenkörpers 7 wirksamen, ineinandergreifenden Positionierungsteilen 12 versehen.1 shows the escape pattern of the most essential parts of an electromagnetic switching device housed in the lower part 1 of the housing. The core 2 of the electromagnet can be fastened by a metal strip 4 in the lower part 1 after mounting two resilient damping rods 3. Short-circuit rings 5 with elastic damping rods 6 are snapped onto the two legs of the core 2. A bobbin 7 is shown in Fig.1 without winding. For the two winding ends, two coil connecting pieces 8 projecting only in one direction are provided on the coil former 7. The connecting wires, not shown, can be connected to the coil connecting pieces 8 with clamping screws 9 and clamping claws 10. A cover 11 is used to cover the live parts. The coil body 7 can be pushed into the middle leg of the core 2 in two positions offset by 180 ° about the winding axis of the magnet coil and can thus be accommodated in the housing. Both the lower part 1 of the housing and the coil body 7 are on Provide the abutting points with effective, interlocking positioning parts 12 in both 180 ° offset positions of the bobbin 7.

Fig.2 zeigt den Querschnitt eines vollständigen elektromagnetischen Schaltgerätes mit in der Zeichnung links liegenden Spulananschlussstücken 8. Der Spulenkörper 7 ist durch den Oberteil 13 des Gehäuses im Gehäuse eingeklemmt und gehalten. Im Oberteil 13 des Gehäuses sind der Anker 14 mit den beweglichen Kontaktstücken 15 und die Festkontaktstücke 16 untergebracht, um nur die wesentlichsten Teile zu nennen. Der Oberteil 13 ist mit nicht näher dargestellten Mitteln am Unterteil 1 des Gehäuses befestigt.2 shows the cross section of a complete electromagnetic switching device with coil connecting pieces 8 on the left in the drawing. The coil former 7 is clamped and held in the housing by the upper part 13 of the housing. The armature 14 with the movable contact pieces 15 and the fixed contact pieces 16 are accommodated in the upper part 13 of the housing, to name only the most essential parts. The upper part 13 is fastened to the lower part 1 of the housing by means not shown.

In Fig.3 ist das in Fig.2 im Querschnitt dargestellte elektromagnetische Schaltgerät bei entferntem Oberteil 13 in Draufsicht sichtbar. In dieser Stellung kann der Spulenkörper 7 aus dem Unterteil 1 des Gehäuses herausgezogen werden. In Fig.3 ist deutlich erkennbar, dass die Spulenanschlusstücke 8 auf der linken Seite des Gehäuses liegen.In FIG. 3, the electromagnetic switching device shown in cross section in FIG. 2 is visible in a top view with the upper part 13 removed. In this position, the bobbin 7 can be pulled out of the lower part 1 of the housing. In Figure 3 it can be clearly seen that the coil connection pieces 8 are on the left side of the housing.

In Fig.4 ist das gleiche elektromagnetische Schaltgerät im Querschnitt dargestellt, wie in Fig.2. Der einzige Unterschied zwischen den beiden Figuren 2 und 4 besteht darin, dass beim elektromagnetischen Schaltgerät nach Fig.4 die Spulenanschlusstücke 8 an der rechten und nicht an der linken Seite des Schaltgerätes liegen und dass der ganze Spulenkörper 7 im Vergleich mit der in Fig.2 gezeigten Spulenkörper 7 um 180° um die Wickelachse der Magnetspule 17 versetzt oder verdreht ist.4 shows the same electromagnetic switching device in cross section as in FIG. 2. The only difference between the two FIGS. 2 and 4 is that in the electromagnetic switching device according to FIG. 4 the coil connection pieces 8 are on the right and not on the left side of the switching device and that the entire coil body 7 is compared with that in FIG shown bobbin 7 is offset or rotated by 180 ° about the winding axis of the solenoid 17.

In Fig.5 ist das in Fig.4 im Querschnitt gezeigte elektromagnetische Schaltgerät ohne Oberteil 13 dargestellt. Aus dem Vergleich der Figuren 3 und 5 ist deutlich erkennbar, dass der Spulenkörper 7 aus der in Fig.3 gezeigten Lage durch Versetzen um die Wickelachse der Magnetspule 17 um 180° in die in Fig.5 sichtbare Lage gebracht wurde. Beim Versetzen des Spulenkörpers 7 um 180° um die Wickelachse der Magnetspule 17 bleibt die Lage des Unterteils 1 und des Oberteils 13 des Gehäuses unverändert. Die an der Oberfläche 18 des Gehäuses angebrachten Beschriftungen bleiben trotz um 180° geänderter Lage der Spulenanschlusstücke 8 unverändert.5 shows the electromagnetic switching device shown in cross section in FIG. 4 without an upper part 13. It can be clearly seen from the comparison of FIGS. 3 and 5 that the bobbin 7 has been moved from the position shown in FIG. 3 by shifting around the winding axis of the magnetic coil 17 by 180 ° into the position visible in FIG. When the bobbin 7 is displaced by 180 ° about the winding axis of the magnetic coil 17, the position of the lower part 1 and the upper part 13 of the housing remains unchanged. The inscriptions on the surface 18 of the housing remain unchanged despite the position of the coil connecting pieces 8 changed by 180 °.

Das beschriebene elektromagnetische Schaltgerät ist geeignet für den Zusammenbau beispielsweise mit einer Sicherung an der einen Seite des Schaltgerätes oder wahlweise mit einem Leistungsschalter an der anderen Seite des Schaltgerätes bei gleichbleibender Beschriftung des Schaltgerätes und bei an der freien Seite des Schaltgerätes gut zugänglichen Spulenanschlusstücken 8.The electromagnetic switching device described is suitable for assembly, for example with a fuse on one side of the switching device or alternatively with a circuit breaker on the other side of the switching device with the same labeling of the switching device and with easily accessible coil connecting pieces 8 on the free side of the switching device.

Claims (2)

Elektromagnetisches Schaltgerät, insbesondere Schütz mit einem in einem Gehäuse befestigten Elektromagneten und mit einem mindestens eine Magnetspule und deren nur in einer Richtung vorspringenden Spulenanschlusstücke tragenden, im Gehäuse befestigten Spulenkörper, dadurch gekennzeichnet, dass der Spulenkörper (7) in zwei um die Wickelachse der Magnetspule (17) 180° versetzten Stellungen in das Gehäuse (1) einsetzbar ist.Electromagnetic switching device, in particular a contactor with an electromagnet fastened in a housing and with at least one magnet coil and its coil body, which bears only in one direction and has coil connecting pieces and is fastened in the housing, characterized in that the coil body (7) is arranged in two about the winding axis of the magnet coil ( 17) positions offset by 180 ° can be inserted into the housing (1). Elektromagnetisches Schaltgerät nach Anspruch 1, dadurch, gekennzeichnet, dass sowohl das Gehäuse (1) als auch der Spulenkörper (7) an den aneinanderstossenden Stellen mit in beiden 180° versetzten Lagen des Spulenkörpers (7) wirksamen, ineinandergreifenden Positionierungsteilen (12) versehen sind.Electromagnetic switching device according to claim 1, characterized in that both the housing (1) and the coil body (7) are provided at the abutting locations with effective, interlocking positioning parts (12) in both 180 ° positions of the coil body (7).
EP95119906A 1995-02-16 1995-12-16 ELectromagnetic switching device, in particular contactor Withdrawn EP0727802A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH95004/53 1995-02-16
CH45395 1995-02-16
US08/592,144 US5684442A (en) 1995-02-16 1996-01-26 Electromagnet switching device, especially contactor

Publications (2)

Publication Number Publication Date
EP0727802A2 true EP0727802A2 (en) 1996-08-21
EP0727802A3 EP0727802A3 (en) 1997-12-10

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US8130064B2 (en) * 2008-08-01 2012-03-06 Tyco Electronics Corporation Switching device
US8203403B2 (en) * 2009-08-27 2012-06-19 Tyco Electronics Corporation Electrical switching devices having moveable terminals
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KR101513207B1 (en) * 2013-11-08 2015-04-17 엘에스산전 주식회사 Magnetic contactor
US10176952B2 (en) * 2014-12-05 2019-01-08 Omron Corporation Electromagnetic relay
JP2016110843A (en) 2014-12-05 2016-06-20 オムロン株式会社 Electromagnetic relay
JP6414453B2 (en) 2014-12-05 2018-10-31 オムロン株式会社 Electromagnetic relay
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JPH08255545A (en) 1996-10-01
EP0727802A3 (en) 1997-12-10
US5684442A (en) 1997-11-04

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