EP2383841B1 - Anschlusssystem, mit dem das Spannmoment einer Schraubenklemme übertragen werden kann - Google Patents

Anschlusssystem, mit dem das Spannmoment einer Schraubenklemme übertragen werden kann Download PDF

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Publication number
EP2383841B1
EP2383841B1 EP11354007A EP11354007A EP2383841B1 EP 2383841 B1 EP2383841 B1 EP 2383841B1 EP 11354007 A EP11354007 A EP 11354007A EP 11354007 A EP11354007 A EP 11354007A EP 2383841 B1 EP2383841 B1 EP 2383841B1
Authority
EP
European Patent Office
Prior art keywords
screw
housing
connection system
terminal
connection
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.)
Active
Application number
EP11354007A
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English (en)
French (fr)
Other versions
EP2383841A3 (de
EP2383841A2 (de
Inventor
Pierre Bussieres
David Couzon
Bernard Loiacono
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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 Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP2383841A2 publication Critical patent/EP2383841A2/de
Publication of EP2383841A3 publication Critical patent/EP2383841A3/de
Application granted granted Critical
Publication of EP2383841B1 publication Critical patent/EP2383841B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw
    • H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/64—Means for preventing incorrect coupling
    • H01R13/641—Means for preventing incorrect coupling by indicating incorrect coupling; by indicating correct or full engagement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/489—Clamped connections, spring connections utilising a spring, clip, or other resilient member spring force increased by screw, cam, wedge, or other fastening means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/302—Clamped connections, spring connections utilising a screw or nut clamping member having means for preventing loosening of screw or nut, e.g. vibration-proof connection

Definitions

  • the invention relates to a screw terminal for connecting at least one electrical conductor to a conductive pad of an electrical appliance. It aims more precisely to ensure the effective tightening of a catch-up creep terminal.
  • the invention relates to a terminal comprising a device for signaling the tightening torque of the screw.
  • the cable terminals may tend to loosen after a long period of service, and this loosening causes significant heating in electrical appliances.
  • the document EP 1,531,519 proposes the addition of a system indicating the quality of the tightening, in particular a lever taking two positions.
  • the document EP 1 271 697 has a screw terminal, comprising a connection cage having a threaded orifice, a screw cooperating with the threaded orifice and a resilient pressing member which is applied to the electrical conductor.
  • the pressure part comprises a head section and a pressure range interconnected by a resilient flange adapted to store a clamping energy, the head range being able to be biased by the screw head and the pressure range being applicable against one of the conductors to be connected.
  • This pressurization allows, by the support exerted under the screw head, to avoid loosening of the terminal and / or catch the creep of the conductor tightened by the terminal.
  • the pressure piece comprises two elastic wings symmetrical with respect to an axial plane of the screw and of concave shape.
  • the installation time can be very short while ensuring the quality of cabling and ensuring continuity of service.
  • the operator has no practical indication of the actual position, at any moment, of the screw and he remains the only judge of the tightening applied to the electrical conductor and therefore of the contact pressure: this ignorance can lead him to some trial and error. at the expense of the duration of operations.
  • the operator since no indication of the effective tightening torque is available, for fear of creep, the operator may be required to regularly check the tightening of the terminals, although the creep has in fact been compensated.
  • the invention aims to overcome this drawback of the previous limit, and to provide a system for signaling the tightening torque of a catch-up creep terminal.
  • the invention relates to means for detecting a tightening torque of a screw terminal provided with a pressure device and located between walls, said means comprising an element integral with the pressure device and a element integral with a wall cooperating with each other to actuate signaling means when the tightening torque reaches a threshold.
  • the detection means are part of a connection system comprising a housing with insulating walls with which is associated a terminal which comprises a connection cage provided with a screw and a coupled annular shape pressure device , preferably captively, to the screw so as to be driven by it.
  • the pressure device comprises a headband secured to the screw and opposite to a mobile pressure range in the cage, and two symmetrical concave wings connecting them, the central portion of the wings approaching the walls of the housing of the terminal when the device is compressed between its head range and its pressure range, that is to say in particular when the screw is tightened on a conductor and / or a connection range located in the cage.
  • the pressure device is preferably conductive and provided with a insulating flap moving with it so as to obstruct a housing passage opening of the housing.
  • a first detection element is located on a wall of the housing and a second element is placed on the adjacent wing, preferably at the central part which is deformed the most and / or on the insulating flap.
  • Means make it possible to determine a minimum threshold of the distance separating the two elements, said threshold corresponding to a predetermined tightening torque of the screw, that is to say a compression force of the device, said means allowing, as a function of whether or not the threshold is reached, to actuate signaling means, for example a light-emitting diode.
  • the two elements come into abutment when the predetermined tightening torque is reached, and the contact between the two elements advantageously closes a supply circuit of the signaling means;
  • the first element may then comprise two conductive tracks, extending parallel to the axis of the screw over a length covering at least the maximum displacement of the cage, and the second element a range connecting or not the two tracks.
  • the invention thus relates to a connection system with the previous terminal, the housing and the detection means, the housing can be part of an electrical device at one of its connection areas or be included in an independent housing.
  • the invention thus relates to a terminal block which can accommodate several terminals, and in particular comprise three housings and three cage terminals, advantageously forming three integral connection systems.
  • connection system of an electrical appliance comprises a housing delimited by insulating walls, a terminal comprising a connection cage and a screw cooperating for a relative movement of the screw with respect to the cage, and a pressure device comprising two elastic wings interconnected at one end by a headband secured to the screw and at the other end by a pressure range located in the connection cage.
  • the wings are symmetrical about an axial plane of the screw and comprise a central portion, such that the spacing between the central portions of the wings increases when the pressure device is compressed between its head range and its pressure range so that said pressure device is able to store a clamping energy.
  • the system according to the invention further comprises means for detecting a predetermined tightening torque of the screw comprising a first element integral with a wall and a second element integral with a wing, said wing and said wall being adjacent to each other. one of the other when the terminal is put in place in the housing, means for determining the distance separating the first and second elements, signaling means coupled to the determining means and indicating when said distance is less than or equal to at a threshold distance.
  • the first and the second elements come into contact when the predetermined tightening torque is reached, said threshold distance being zero; the first and second elements may be conductive and part of a supply circuit of the signaling means, so that the signaling means are energized when the predetermined tightening torque is reached; for example the first element comprises two conductive tracks, and the second element comprises a conductive pad.
  • the second element is preferably located at the central part of the wing, and the first element extends parallel to the relative displacement axis of the terminal for a length sufficient to be facing the second element in all positions. relative of the terminal relative to the housing.
  • the second element can be put in place on an insulating flap attached to a wing of the pressure device.
  • a fixed connection area 1 is accessible through an opening 2 of the housing in order to be able to associate, by direct clamping, one or more conductors 4.
  • insulating walls 6 define within the housing a housing 8, typically rectangular parallelepiped, provided with various arrangements, so as to accommodate a screw terminal 10 for connection to the fixed range 1.
  • the terminal 10 comprises a cage 12 formed by a metal strip cut and folded which is looped in a rigid ring, defining a substantially rectangular passage which faces the access opening 2 of the housing and in which is positioned the connection pad 1.
  • the rigid cage 12 comprises on a small side substantially parallel to the fixed range 1 a threaded hole 14 for the passage of a screw 16 which normally moves to the range 1 and allows the clamping.
  • the screw 16 comprises an operating head 18 extending via a neck 20, a threaded rod, which terminates at its free end by a bearing surface 22 directly stressed for clamping a cable 4 on the beach 1.
  • a pressure device 24 is coupled to the screw 16, preferably captively, so as to move with it and to be urged by the clamping.
  • the device 24 is a unitary piece, elastic, usually metallic, substantially closed on itself in the form of a ring and symmetrical with respect to an axial plane of the screw 16.
  • a headband 26 encloses the neck 20 of the screw 16 under its head 18, so as to ensure a balanced hold, and a pressure range 28 may be applied to one of the conductors 1, 4 to be brought into contact, serving as an interface with the span 22 of the screw 16.
  • a flange 30 connects the surfaces 26, 28 of the device 24 via a connection zone defining a projecting angle; the wings 30 are concave, with a central portion 32 closer to the axis of the screw 16.
  • the pressure range 28 can be curved to give a generally convex shape to the end portion of the device 24 opposite to the head region 26 and / or to have reliefs 28A cooperating with a recessed portion 1A of the conductive zone 1.
  • the combination of the concavity of the wings 30 and the sloping or convex shape of the lands 26, 28 is adapted so that the pressure device 24 deforms by compression with a curvature decreasing as the pressure increases: the central portions 32 move away from each other.
  • the rotation of the screw 16 causes, by cooperation of its thread with the threaded orifice 14, the translation of the cage 12 relative to the housing 8 to its abutment against a face of the fixed connection range 1; in parallel, the screw 16 moves relative to the cage 12 and the housing 8 until the pressure range 28 abuts against the opposite face of the fixed range 1.
  • the continued rotation of the screw 16 then causes the compression stressing of the pressure device 24, which results in the reduction of the concavity of the wings 30 and the application of the bearing surface 22 of the screw 16 against the face of the pressure range 28 opposite to the fixed range 1 : Figure 1B .
  • the elastic force stored in the wings 30 helps to prevent loosening of the screw 16 by inadvertent rotation (action exerted by the headband 20 on the head 18) and to compensate for a game due to the creep of the conductor 2, by displacement of the pressure range 28 relative to the span 22 of the screw 16; it should be noted in this regard that the head 18 urges the headband 20 in compression, which makes it possible to respect the elastic limit of the device 24.
  • a small distance is provided between the bearing surface 22 of the screw 16 and the face facing the pressure range 28; the distance is determined so that its retrofit produces the desired level of stress of the pressure device 24.
  • the head of the screw 16 is applied to the headband 20 in a region situated at a short distance from the axis of the screw 16, so as to create a lever arm which accentuates the torque exerted on the device 24.
  • an insulating flap 34 is fixed on a flange 30 facing the insertion opening 2 of the cable 4: the flap 34 moves together with the pressure device 24 so as to partially mask the introduction opening 2 and therefore reduce the risk of inadvertent contact.
  • the spacing e between the inner faces of the central portions 32 of the wings 30 is minimal at rest; it is at least equal and preferably slightly greater than the width of the cage 12, so that the cage 12 can slide freely within the pressure device 24.
  • the spacing e between the inner faces of the central portions 34 increases until the wings 30 adopt a concavity shape null or reversed.
  • the distance e between the inner faces of the wings 30 is maximum: means are provided to detect and signal the predetermined minimum of the residual distance d between the central portion 32 one of the wings 30 and the adjacent wall 6 of the housing 8.
  • an indication, sound or preferably visual allows the operator to know that its clamping is sufficient: this alone criterion is sufficient to make the connection reliable and fast.
  • the operator can recognize the reality of the tightening of the screw 16 so as not to intervene to tighten a screw 16 for a terminal 10 is properly connected.
  • the detection of the minimum of the distance d is carried out by setting up a stop system cooperating between the wall 6 and the wing 30, which, in addition to the simplicity of detection, avoids excessive stress on the device pressure 24 and too much torque.
  • the detection means thus comprise a first stop element 38 on a wall 6 cooperating with a second stop element 40 on the adjacent wing 30; the detection means are of dry switch type, and the two abutment elements 38, 40 are conductive, closing a supply circuit of the signaling means 42, for example a light-emitting diode, a PLC input, a safety circuit ...
  • the second element 40 located on the wing 30 may comprise a protuberance of said metal wing; advantageously, the second element 40 is a conductor placed on an insulating support so as to avoid any accidental contact between the wing 30 itself and the first element 38.
  • the second element 40 comprises a conductive pad set to place on the bib 34; for greater accuracy, it is preferred that the second element 40 be located at the central portion 32 of the wing 30, which undergoes the greatest deformation during tightening.
  • the first element 38 located on the adjacent wall 6, advantageously comprises two conductive tracks 44 isolated from each other, each track 44 being connected to the supply circuit of the signaling means 42; the distance separating the two tracks 44 is less than or equal to the width in the same direction of the range 40.
  • the tracks 44 extend parallel to the axis of the screw 16, over a length corresponding at least to the possible displacement the second element 40, that is to say the flange 30 / 1a flap 34 relative to the wall 6.
  • Other embodiments are possible.
  • the terminal 10 is associated with an insulating housing 46 which serves as a housing 48, said housing 46 being inserted directly into a recess 8 of an electrical appliance.
  • a housing 48 which serves as a housing 48
  • several terminals 10, and in particular three are housed in a unitary housing 46 so as to facilitate the installation of the three-phase devices by inserting a single terminal block 50.
  • the terminal block 50 comprises an insulating housing 46 provided with three housings 48 of square section, isolated from one another by a partition wall 52, each housing 48 comprising two orifices 54; facing one end and on two sides orthogonal to the partition wall 52, an orifice 54 1 being intended for the passage of the fixed range 1 and the other 54 2 to face a passage opening 2 of the device.
  • the face orthogonal to the side walls 52 and including the orifices 54 i is recessed at each housing 48 to allow the passage of a terminal 10 as previously described and the opposite side is provided with a hole 56 for actuating the screw 16.
  • the face of the cage 12 of the terminal 10 accessible from the recess of the housing 46 is advantageously associated with an insulating cover 58 so as to close the housing 48 of the terminal block 50.
  • the inner face of a wall 60, preferably the wall comprising the passage opening 54 2 is provided with the first element 40 of the tightening torque detection means.
  • the invention has been described with reference to a terminal 10 in which the cage 12 and the screw 16 are movable relative to the housing 8, 48 in which the terminal 10 is placed, it is not limited thereto.
  • the system and / or the terminal block 50 according to the invention to have a cage 12 or a screw 16 fixedly mounted relative to the walls 6.
  • the terminal 10 can be used to clamp a conductor 4 between the range 22 and the fixed range 1 or the other side of the beach 1, or a driver on each side.
  • It is also possible to make the switch circuit of the signaling means 42 by using the pressure device 24 as a bridge connecting two first elements 38 located on the two opposite walls 48 of a terminal block 50, or any other alternative.
  • Other means for determining the distance between the two elements 38, 40 can be envisaged; in particular, it is possible to use means for identifying two threshold distances, so as to inform the user that a clamping is desirable or imposed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Clamps And Clips (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Claims (10)

  1. Anschlusssystem (50) eines elektrischen Schaltgeräts mit
    - einer durch Isolierstoffwände (6) begrenzten Aufnahme (8),
    - einer Klemme (10) mit einem Anschlusskäfig (12) und einer Schraube (16), die zur Erzeugung einer Relativbewegung zwischen Schraube (16) und Käfig (12) zusammenwirken,
    - einer Druckvorrichtung (24) mit zwei biegsamen Flügeln (30), die an einem Ende über eine um die Schraube (16) geführte Kopffläche (26) und am anderen Ende über eine im Anschlusskäfig (12) angeordnete Druckfläche (28) miteinander verbunden sind, welche Flügel (30) in Bezug zu einer Axialebene der Schraube (16) symmetrisch ausgebildet sind und einen Mittelabschnitt (32) umfassen, derart, dass beim Zusammendrücken der Druckvorrichtung (24) durch Einwirkung auf ihre Kopffläche (26) und ihre Fußfläche (28) der Abstand (e) zwischen den Mittelabschnitten (32) der Flügel (30) zunimmt und die genannte Druckvorrichtung (24) auf diese Weise eine bestimmte Klemmenergie speichern kann,
    welches Anschlusssystem durch Detektiermittel zur Erkennung eines festgelegten Anziehmoments der Schraube (16) gekennzeichnet ist, wobei die Detektiermittel ein, mit einer Wand (6) verbundenes erstes Element (38) sowie ein mit einem Flügel (30) verbundenes zweites Element (40), welcher Flügel (30) und welche Wand (6) nach dem Einsetzen der Klemme (10) in die Aufnahme (8) einander gegenüberliegen, Bestimmungsmittel zur Bestimmung des Abstands (d) zwischen dem ersten und dem zweiten Element (38, 40) sowie mit den Bestimmungsmitteln gekoppelte Anzeigemittel (42) umfassen, die anzeigen, wenn der genannte Abstand (d) kleiner oder gleich einem Grenzabstand ist.
  2. Anschlusssystem nach Anspruch 1, bei dem das erste und das zweite Element (38, 40) in Berührung gelangen, wenn das festgelegte Anziehmoment erreicht ist, wobei der genannte Grenzabstand null ist.
  3. Anschlusssystem nach Anspruch 2, bei dem das erste und das zweite Element (38, 40) leitend ausgebildet sind und Teil eines Versorgungsstromkreises der Anzeigemittel (42) bilden, derart, dass die Anzeigemittel (42) mit einer Versorgungsspannung beaufschlagt werden, wenn das festgelegte Anziehmoment erreicht ist.
  4. Anschlusssystem nach Anspruch 3, bei dem das erste Element (38) zwei Leiterbahnen (44) und das zweite Element (40) eine Leiterfläche umfasst.
  5. Anschlusssystem nach einem der Ansprüche 1 bis 4, das zusätzlich eine, an einem Flügel (32) der Druckvorrichtung (24) befestigte Isolierstofflasche (34) umfasst.
  6. Anschlusssystem nach Anspruch 5, bei dem das zweite Element (40) auf der Lasche (34) angebracht ist.
  7. Anschlusssystem nach irgendeinem der Ansprüche 1 bis 6, bei dem das zweite Element (40) im Bereich des Mittelabschnitts (32) angeordnet ist und bei dem das erste Element (38) über eine ausreichende Länge parallel zur relativen Bewegungsachse der Klemme (10) angeordnet ist, um zu gewährleisten, dass es in allen Relativpositionen der Klemme (10) in Bezug zur Aufnahme (8) dem zweiten Element (40) gegenüber liegt.
  8. Elektrisches Schaltgerät mit einem Gehäuse und mindestens einem Anschlusssystem nach einem der Ansprüche 1 bis 7, bei dem die Aufnahme (8) des Anschlusssystems in der Kontur des genannten Gehäuses ausgebildet ist und einen im Anschlusskäfig (12) angeordneten feststehenden Anschluss (1) umfasst.
  9. Anschlussklemmenblock (50) mit einem Isolierstoffgehäuse (46) und mindestens einem Anschlusssystem nach einem der Ansprüche 1 bis 7, bei dem die Aufnahme des Anschlusssystems eine Aufnahme (48) im Gehäuse (46) darstellt, welche Aufnahme (48) kastenförmig ausgebildet ist und eine Seite mit einer Öffnung zur Betätigung der Schraube (16), eine gegenüberliegende Seite mit einer Aussparung zur Durchführung der Klemme (10) des Anschlusssystems sowie mindestens eine diese beiden Seiten verbindende Seite umfasst, in der eine Einführungsöffnung (542) für einen anzuschließenden Leiter ausgebildet ist.
  10. Klemmenblock (50) nach Anspruch 9 mit drei Anschlusssystemen.
EP11354007A 2010-04-30 2011-03-22 Anschlusssystem, mit dem das Spannmoment einer Schraubenklemme übertragen werden kann Active EP2383841B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1001843A FR2959613B1 (fr) 2010-04-30 2010-04-30 Systeme de raccordement permettant de signaler le couple de serrage d'une borne a vis.

Publications (3)

Publication Number Publication Date
EP2383841A2 EP2383841A2 (de) 2011-11-02
EP2383841A3 EP2383841A3 (de) 2012-03-28
EP2383841B1 true EP2383841B1 (de) 2013-01-30

Family

ID=43127338

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11354007A Active EP2383841B1 (de) 2010-04-30 2011-03-22 Anschlusssystem, mit dem das Spannmoment einer Schraubenklemme übertragen werden kann

Country Status (5)

Country Link
US (1) US8393922B2 (de)
EP (1) EP2383841B1 (de)
CN (1) CN102290642B (de)
ES (1) ES2400475T3 (de)
FR (1) FR2959613B1 (de)

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CN104037511B (zh) * 2014-05-29 2016-02-10 国网浙江省电力公司绍兴供电公司 一种带接线有效性检测功能的端子排
US9997861B2 (en) 2015-12-10 2018-06-12 International Business Machines Corporation Force limiting latch indicator
US9812829B1 (en) * 2016-11-10 2017-11-07 Schneider Electric USA, Inc. Wiring connector for two wire to two point connection
CN108400068B (zh) * 2018-03-23 2023-10-03 宁波城市职业技术学院 一种接线预警式低压断路器及其控制方法
WO2020157563A2 (en) * 2019-01-29 2020-08-06 Appleton Grp, Llc A heat-absorbing-and-dissipating jacket for a terminal of an electrical device
CN112530753B (zh) * 2020-11-26 2023-02-03 广东电网有限责任公司清远供电局 一种接线端子及使用其的断路器

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Also Published As

Publication number Publication date
US8393922B2 (en) 2013-03-12
EP2383841A3 (de) 2012-03-28
ES2400475T3 (es) 2013-04-10
CN102290642A (zh) 2011-12-21
EP2383841A2 (de) 2011-11-02
CN102290642B (zh) 2015-05-06
FR2959613A1 (fr) 2011-11-04
US20110269333A1 (en) 2011-11-03
FR2959613B1 (fr) 2012-04-20

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