EP3333864B1 - Entfernbares unterbrechungselement für ein stromunterbrechungsgerät, und unterbrechungsgerät eines elektrischen stroms, das ein solches entfernbares element umfasst - Google Patents

Entfernbares unterbrechungselement für ein stromunterbrechungsgerät, und unterbrechungsgerät eines elektrischen stroms, das ein solches entfernbares element umfasst Download PDF

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Publication number
EP3333864B1
EP3333864B1 EP17205966.9A EP17205966A EP3333864B1 EP 3333864 B1 EP3333864 B1 EP 3333864B1 EP 17205966 A EP17205966 A EP 17205966A EP 3333864 B1 EP3333864 B1 EP 3333864B1
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EP
European Patent Office
Prior art keywords
electrical
conductor
movable
removable
electrical conductor
Prior art date
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Application number
EP17205966.9A
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English (en)
French (fr)
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EP3333864A1 (de
Inventor
Patrick Comtois
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Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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Publication of EP3333864A1 publication Critical patent/EP3333864A1/de
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Classifications

    • 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
    • H01H9/08—Arrangements to facilitate replacement of a switch, e.g. cartridge housing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5805—Connections to printed circuits
    • 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
    • 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
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/001—Means for preventing or breaking contact-welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/025—Constructional details of housings or casings not concerning the mounting or assembly of the different internal parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/501—Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker
    • 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
    • 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
    • H01H2009/0292—Transparent window or opening, e.g. for allowing visual inspection of contact position or contact condition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0214—Housing or casing lateral walls containing guiding grooves or special mounting facilities

Definitions

  • the invention relates to a removable electrical cut-off element for an electrical cut-off device.
  • the invention also relates to an electrical device for breaking an electric current comprising a removable cut-off element.
  • FR 2 999 790 A1 discloses an electrical switching device comprising removable cutting elements which are intended to be inserted in corresponding housings of the apparatus.
  • Each removable element is connected between corresponding connection areas of the electrical apparatus and is adapted to interrupt an electric current flowing between these ranges. This interruption is achieved by moving a movable electrical conductor relative to fixed electrical conductors connected to the connection pads, exerting mechanical pressure on a movable bridge secured to the movable conductor, for example by means of an electromechanical actuator.
  • Such removable elements have the advantage of being interchangeable and therefore easy to replace during maintenance operations or in case of malfunction of the electrical device.
  • the housing comprises two through windows, one being located facing the first contact zone between the mobile conductor and the first fixed electrical conductor and the other being located opposite the second contact zone between the mobile conductor and the second fixed electrical conductor.
  • the through windows allow an operator to directly view the states of the contact areas without the need to open the housing of the removable element.
  • the through window allows the insertion of a tool, such as a screwdriver or chisel tip, to mechanically desolder the fixed and mobile conductors of each other when they were accidentally welded. one to another. In this way, maintenance operations can be easily performed directly by an operator without the need to physically open the housing, allowing reuse and less immobilization of the removable element.
  • the at least one removable cutting element is according to the invention.
  • the figure 1 represents an electrical device 2 for cutting an electric current, also called breaking block.
  • the electrical apparatus 2 is intended to allow the selective interruption of an electric current flowing through one or more lines of electric current, for example a polyphase current.
  • the electrical apparatus 2 is connected to an electrical supply line of an electric motor.
  • the electrical apparatus 2 here comprises a base 4 and one or more electric breaking elements 6. Each element 6 is adapted to interrupt an electric current independently of the other elements 6 of the apparatus 2.
  • the electrical apparatus 2 is adapted to interrupt a three-phase current comprising three electrical phases, and is therefore adapted to receive three elements 6, each associated with one of these electrical phases.
  • the base 4 comprises housings 8, 8 'and 8 ", here three in number and identical to each other, each adapted to receive a removable element 6.
  • the housings 8, 8' and 8" are here of complementary shape to that elements 6.
  • the housings 8, 8 'and 8 are separated in pairs by partition walls 10.
  • the walls 10 are made of an electrically insulating material, for example a plastic material, such as polyamide PA66.
  • the partition walls 10 have the function of electrically isolating in pairs the neighboring elements 6 when they are received inside the housings 8, 8 'and 8 ", in order to to avoid the appearance of an electric arc between two adjacent elements 6 during their operation.
  • the partition walls 10 are provided with grooves 12 whose role is explained in more detail in the following.
  • the element 6 comprises a housing 20, inside which are housed fixed electrical conductors 22 and 24, respectively extended by connection terminals 26 and 28.
  • the housing 20 is made of plastic, such as polyamide PA66.
  • the terminals 26 and 28 are intended to be electrically connected to corresponding connection areas of the apparatus 2 when the element 6 is received in a corresponding housing 8, 8 ', 8 ".
  • the conductors 22 and 24 are here fixed integrally, without degree of freedom, to a fixed part of the element 6, by means of fastening elements 25 such as screws.
  • the conductors 22 and 24 are bars made of metallic material, such as copper.
  • the fixed conductors 22 and 24 are here identical to each other.
  • the fixed conductors 22, 24 are here separated at a distance from one another and are thus electrically isolated from each other by the ambient air.
  • the element 6 further comprises a movable electrical conductor 30 which is movable, relative to the fixed conductors 22 and 24, between first and second distinct positions.
  • the conductor 30 is a bar made of metallic material, such as copper.
  • the conductor 30 is here mounted integral with a movable contact holder 32.
  • X32 is noted the geometric axis corresponding to the direction of movement of the movable contact holder 32.
  • the conductor 30 is movable in translation along the axis X32.
  • a displacement of the electrical conductor 30 thus corresponds to a displacement of the movable contact carrier 32.
  • the conductor 30 electrically connects the fixed conductors 22 and 24, thus allowing the passage of an electric current from one fixed conductor to the other.
  • the element 6 then allows the flow of electric current.
  • the conductor 30 is remote from the fixed conductors 22 and 24, to prevent the passage of an electric current through the element 6.
  • an electrical contact between the fixed conductor 22 and the movable conductor 30 is made at a first contact zone.
  • an electrical contact between the fixed conductor 24 and the movable conductor 30 is made at a second contact area.
  • Each of the fixed conductors 22 and 24 has an electric contact pad 34 disposed at the corresponding contact area.
  • the movable conductor 30 comprises two contact pads 36, each being disposed at a corresponding contact area, vis-à-vis the corresponding contact pad 34.
  • the contact pads 34 and 36 are made of an electrically conductive material, such as copper or silver.
  • the movable contact carrier 32 includes an actuator 38 accessible from outside the housing 20 to selectively move the movable contact carrier 32 and the movable conductor 30 between the first and second positions.
  • the device 38 comprises a screw whose head protrudes with respect to a front face of the element 6.
  • the element 6 further comprises an elastic return member, for example mechanically connected to the movable contact holder 32, and which is arranged to return the conductor 30 in its first position, exerting a restoring force.
  • the first position therefore corresponds to a rest position of the movable conductor 30 and the second position corresponds to an excited position of the movable conductor 30.
  • the movable contact holder 32 comprises elastically deformable blades which are mechanically connected to the movable conductor 30 and the fixed parts of the element 6 to form the elastic return member.
  • the elastic return member may be made differently, for example by means of a compression spring.
  • the displacement of the movable conductor 30 from the first position to the second position is achieved by exerting a mechanical support on the device 38 to push the movable contact holder 32 towards the rear of the element 6.
  • this displacement is carried out using a controllable electromechanical actuator mounted on a front face of the apparatus 2 when the element 6 is received inside the corresponding housing, this actuator being arranged to cooperate with the actuating device 38.
  • the elastic return member associated with the movable contact holder 32 can be configured differently, for example so that the rest position corresponds to the second position and the activated position corresponds to the first position.
  • the housing 20 here comprises two half-shells 44, 46 assembled together to form the housing 20.
  • Each half-shell 44, 46 has a lateral face 48 of the housing 20.
  • the housing 20 can be made differently. In all cases, the housing 20 has two opposite side faces 48.
  • the housing 20 has two through windows 50 and 52.
  • the window 50 is located opposite the contact zone between the fixed conductor 22 and the movable conductor 30.
  • the window 52 is located opposite the contact zone between the fixed conductor 24 and the mobile driver 30.
  • the windows 50 and 52 allow a visualization of the state of the contact areas between the fixed conductors 22, 24 and the movable conductor 30 from outside the element 6, without the need to physically open the housing 20 or disassemble the element 6. The maintenance of the element 6 is therefore of the apparatus 2 is facilitated.
  • the windows 50, 52 are provided on one or more of the lateral faces 48.
  • the windows 50 and 52 are respectively formed on opposite side faces 48 of the housing 20.
  • the window 50 is thus formed on the lateral face 48 carried by the half-shell 46, while the window 52 is formed on the lateral face 48 carried by the half-shell 44.
  • the windows 50 and 52 may be formed on one and the same lateral face 48 on the same side of the housing 20.
  • the windows 50 and 52 have an oblong shape, for example rectangular or elliptical.
  • the dimensions of the windows 50, 52 are adapted to the profile of the contact pad 36 carried by the movable conductor, as explained in the following.
  • the windows 50 and 52 are here identical, so that only the window 50 is described in detail in the following.
  • the half-shells 46 and 48 are identical to each other and are arranged relative to each other symmetrically with respect to a point of symmetry located in a central position of the 6. In this way, the number of different mechanical parts necessary to achieve the element 6 is reduced, since the assembly of the housing 20 is made using two half-shells 44 and 46 identical.
  • half-shells 46 and 48 may be different.
  • the housing 20 comprises a degassing channel 54 which puts the outside of the housing 20 in fluid communication with the interior of the housing 20.
  • the channel 54 is intended to allow the evacuation of the cutoff gas out of the element 6 in the case where an electric arc is formed during the separation of the fixed conductors 22, 24 of the mobile conductor 30.
  • the lateral faces 48 comprise protuberances, or projections 56, which are of complementary shape and number to those of the grooves 12 formed in the partition walls 10 of the apparatus 2.
  • the projections 56 and the grooves 12 make it possible to guide element 6 when it is moved relative to the apparatus 2, in particular to insert it into the corresponding housing 8, 8 ', 8 ".
  • the window 50 is further dimensioned so as to desolder, by means of a tool 60, the fixed electrical conductor 22 of the movable contact 30 in the event of accidental welding at the first contact zone.
  • Such an accidental welding is for example caused by a partial melting of the contact pads 34, 36 following a short circuit that circulates there.
  • the shape of the window 50 is chosen to allow the insertion of a tip 62 of the tool 60.
  • the tool 60 is for example a screwdriver or a chisel or any similar tool having a rigid blade of oblong shape .
  • such desoldering is advantageously performed by inserting the tip 62 through the window 50 and exerting a mechanical shock on the movable conductor 30, so as to move it away from the fixed conductor 22 by moving it in the direction of displacement X32. It is also possible to exert a mechanical torque by pressing the tip 62 on one edge of the window and by pivoting the tool 60, for example according to the arrow F1, so as to move the movable conductor 30 in a direction of movement illustrated by the arrow F2.
  • the window 50 is arranged in such a way as to expose the first contact zone as well as a part of the movable electrical conductor 30.
  • the fixed electrical contact 22 is masked by the lateral face 48, so as to limit its accessibility since the outside the housing 20.
  • a first edge of the window 50 is aligned with an edge of the fixed conductor 22 arranged at the edge of the face of the fixed conductor 22 which faces the movable conductor 30.
  • the window 50 extends from the first edge to a second opposite edge of this window 50, extending towards the movable conductor 30 and in the direction of displacement X32.
  • the first edge is an upper edge of the window 50 and the second edge is a lower edge of the window 50.
  • the fixed conductor face 22 which faces the movable conductor 30 is here a lower face of the fixed conductor 22.
  • the first edge of the window and said fixed conductor edge 22 are arranged facing each other.
  • each window 50, 52 are adapted to the profile of the corresponding contact pad 36 carried by the mobile conductor.
  • the contact pad 36 has a profile of 10 mm wide by 2 mm high.
  • the size of the corresponding window is greater than or equal to these dimensions and allows the use of a tool having a tip 62 whose end to a dimension of 5mm wide by 1mm high, for example.
  • profile of the contact pad 36 designates the dimensions of its side face which is turned towards the corresponding window 50, 52.
  • the lower face and said edge of the conductor 22 belong here to the geometric plane P as illustrated in FIG. figure 5 .
  • This arrangement of the window 50 with respect to the fixed conductor 22 serves to prevent the user from exerting a force on the conductor 22 with the tool 60 during a desoldering operation of the conductors 22 and 30.
  • the window 50 extends from the lower edge of the fixed conductor 22 and towards the movable conductor 30, it prevents the user from positioning the tool 60 to press the fixed conductor 22 and, in parallel, authorizes the user to position the 60 to press the movable conductor 30. This avoids accidental damage to the fixed conductor 22 which is not intended to be moved relative to the fixed part of the element 6.

Landscapes

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

Claims (10)

  1. Auswechselbares Unterbrechungselement (6) eines elektrischen Stroms für eine elektrische Schaltvorrichtung (2), wobei dieses Element umfasst:
    - ein Gehäuse (20);
    - einen ersten und zweiten feststehenden elektrischen Leiter (22, 24), die zueinander isoliert sind,
    - einen beweglichen elektrischen Leiter (30), der zwischen:
    • einer ersten Position, in der der bewegliche elektrische Leiter (30) in elektrischem Kontakt mit dem ersten und zweiten feststehenden elektrischen Leiter (22, 24) an jeweils einer ersten und zweiten Kontaktzone ist und
    • einer zweiten Position, in der der bewegliche elektrische Leiter (30) entfernt und elektrisch isoliert zu dem ersten und zweiten feststehenden elektrischen Leiter (22, 24) ist,
    dadurch gekennzeichnet, dass das Gehäuse (20) zwei durchgehende Fenster (50, 52) aufweist, wobei das eine gegenüber der ersten Kontaktzone zwischen dem beweglichen Leiter (30) und dem ersten feststehenden elektrischen Leiter (22) liegt und das andere gegenüber der zweiten Kontaktzone zwischen dem beweglichen Leiter (30) und dem weiten feststehenden elektrischen Leiter (24) liegt.
  2. Element nach Anspruch 1, dadurch gekennzeichnet, dass jedes Fenster (50, 52) so angeordnet ist, dass die entsprechende Kontaktzone und mindestens ein Teil des beweglichen elektrischen Leiters (30) exponiert sind, wobei der entsprechende feststehende elektrische Leiter (22, 24) durch die Seitenfläche (48) überdeckt ist.
  3. Element nach Anspruch 2, dadurch gekennzeichnet, dass für jedes Fenster (50, 52) ein erster Rand des Fensters zu einer Kante des feststehenden elektrischen Leiters (22, 24), die am Rand der zu dem beweglichen elektrischen Leiter (30) gerichteten Fläche dieses feststehenden elektrischen Leiters angeordnet ist, ausgerichtet ist, wobei das Fenster sich von dem ersten Rand zu einem entgegengesetzten zweiten Rand in Richtung des beweglichen elektrischen Leiters (30) und gemäß einer Richtung der (X32) des beweglichen elektrischen Leiters (30) erstreckt.
  4. Element nach einem der vorhergehenden Ansprüche, dadurch kennzeichnet, dass das Gehäuse (20) zwei gegenüberliegende Seitenflächen (48) aufweist, wobei eines der Fenster (50) an einer der Seitenflächen (48) angeordnet ist und das andere Fenster (52) an der anderen Seitenfläche (48) angeordnet ist.
  5. Element nach Anspruch 4, dadurch gekennzeichnet, dass das Gehäuse (20) zwei zusammengesetzte Halbschalen (44, 46) aufweist, wobei jede Halbschale (44, 46) eine der Seitenflächen (48) aufweist, die mit einem der durchgehenden Fenster (50, 52) versehen ist, dass die Halbschalen zueinander gleich ausgebildet sind und dass sie zueinander symmetrisch in Bezug auf einen Symmetriepunkt angeordnet sind, der an einer Mittelposition der elektrischen Vorrichtung (6) angeordnet ist.
  6. Element nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Fenster (50, 52) eine längliche Form, beispielsweise eine rechteckige oder elliptische Form aufweisen.
  7. Element nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Fenster (50, 52) jeweils Abmessungen aufweisen, die an das entsprechende Profil einer Kontaktstelle (36), die von dem beweglichen Leiter (30) getragen wird, angepasst sind.
  8. Elektrische Schaltvorrichtung (2) für einen elektrischen Strom, umfassend:
    - eine Grundplatte (4), die Aufnahmeräume (8, 8', 8") aufweist, die durch Trennwände (10) begrenzt sind,
    - ein auswechselbares Unterbrechungselement (6) eines elektrischen Stroms, das vorgesehen ist, in einem der Aufnahmeräume der Grundplatte derart aufgenommen zu werden, dass die Verbindungsanschlüsse (26, 28) des auswechselbaren Elementes elektrisch mit elektrischen Anschlussklemmen der Vorrichtung verbindbar sind, dadurch gekennzeichnet, dass das auswechselbare Unterbrechungselement (6) nach einem beliebigen der vorhergehenden Ansprüche ausgebildet ist.
  9. Elektrische Schaltvorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass die Trennwände (10) aus einem elektrisch isolierenden Material hergestellt sind.
  10. Elektrische Schaltvorrichtung nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass die Trennwände Nuten (12) aufweisen und dass die Seitenflächen der auswechselbaren Unterbrechungselemente mit Vorsprüngen (56) in komplementäre Form zu den Nuten (12) versehen sind, um eine Führung des auswechselbaren Unterbrechungselement (6) sicherzustellen, wenn dieses in den Aufnahmeraum (8, 8', 8") eingefügt wird.
EP17205966.9A 2016-12-08 2017-12-07 Entfernbares unterbrechungselement für ein stromunterbrechungsgerät, und unterbrechungsgerät eines elektrischen stroms, das ein solches entfernbares element umfasst Active EP3333864B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1662152A FR3060193B1 (fr) 2016-12-08 2016-12-08 Element amovible de coupure pour un appareil de coupure electrique et appareil de coupure d'un courant electrique comprenant un tel element amovible

Publications (2)

Publication Number Publication Date
EP3333864A1 EP3333864A1 (de) 2018-06-13
EP3333864B1 true EP3333864B1 (de) 2019-10-09

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EP17205966.9A Active EP3333864B1 (de) 2016-12-08 2017-12-07 Entfernbares unterbrechungselement für ein stromunterbrechungsgerät, und unterbrechungsgerät eines elektrischen stroms, das ein solches entfernbares element umfasst

Country Status (5)

Country Link
US (1) US10361042B2 (de)
EP (1) EP3333864B1 (de)
JP (1) JP7046581B2 (de)
CN (1) CN108183041B (de)
FR (1) FR3060193B1 (de)

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TWD188673S (zh) * 2017-05-08 2018-02-21 進聯工業股份有限公司 Housing of electrical connection terminal
FR3089702B1 (fr) * 2018-12-11 2020-12-25 Schneider Electric Ind Sas Support préfabriqué pour un dispositif électrique montable sur baie et dispositif électrique comportant un tel support
CN210956485U (zh) * 2019-12-24 2020-07-07 施耐德电器工业公司 分断器、分断器组件和接触器
GB2579467B (en) * 2020-01-24 2021-01-13 First Light Fusion Ltd Electrical switching arrangement

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JPH0641317Y2 (ja) * 1988-05-30 1994-10-26 オムロン株式会社 電磁継電器
JPH0485617U (de) * 1990-11-30 1992-07-24
US5652420A (en) * 1995-11-14 1997-07-29 Eaton Corporation Modular contactor control system
DE19834474A1 (de) 1998-07-30 2000-02-10 Siemens Ag Einrichtung zum Kurzschlußschutz
US6064289A (en) * 1999-03-12 2000-05-16 Eaton Corporation Electromagnetic contactor with overload relay
DE10339670B4 (de) 2003-08-28 2006-02-16 Siemens Ag Klemmeinrichtung und damit ausgestattetes Schaltgerät zum Leiteranschluss mittels Ringkabelschuh
FR2999782B1 (fr) 2012-12-18 2015-01-02 Schneider Electric Ind Sas Dispositif modulaire de commutation electrique comportant au moins un bloc de coupure unipolaire et ensemble de commutation comportant de tels dispositifs.
TW201603080A (zh) * 2014-07-08 2016-01-16 Switchlab Inc 開關裝置改良結構
DE202014104584U1 (de) * 2014-09-25 2014-10-17 Abb Technology Ag Gasisolierte Schaltanlage mit im Schaltraum angeordneten lichtemittierenden Mitteln

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Publication number Publication date
FR3060193A1 (fr) 2018-06-15
CN108183041A (zh) 2018-06-19
EP3333864A1 (de) 2018-06-13
US20180166227A1 (en) 2018-06-14
CN108183041B (zh) 2021-10-29
JP7046581B2 (ja) 2022-04-04
FR3060193B1 (fr) 2019-05-17
US10361042B2 (en) 2019-07-23
JP2018120847A (ja) 2018-08-02

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