EP3118933A1 - Dispositif de connexion comprenant une borne enfichable - Google Patents

Dispositif de connexion comprenant une borne enfichable Download PDF

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Publication number
EP3118933A1
EP3118933A1 EP16174927.0A EP16174927A EP3118933A1 EP 3118933 A1 EP3118933 A1 EP 3118933A1 EP 16174927 A EP16174927 A EP 16174927A EP 3118933 A1 EP3118933 A1 EP 3118933A1
Authority
EP
European Patent Office
Prior art keywords
clamping
contact
contact lug
lug
connecting device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16174927.0A
Other languages
German (de)
English (en)
Other versions
EP3118933B1 (fr
Inventor
Ralph Burckhardt
Alexander Wachter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Schweiz AG
Original Assignee
ABB Schweiz 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
Priority claimed from DE102016110174.5A external-priority patent/DE102016110174A1/de
Application filed by ABB Schweiz AG filed Critical ABB Schweiz AG
Publication of EP3118933A1 publication Critical patent/EP3118933A1/fr
Application granted granted Critical
Publication of EP3118933B1 publication Critical patent/EP3118933B1/fr
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
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
    • H01R9/2625—Clip-on terminal blocks for side-by-side rail- or strip-mounting with built-in electrical component
    • 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
    • H01R13/02—Contact members
    • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
    • 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
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
    • H01R4/4821—Single-blade spring
    • 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
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/483—Pivoting arrangements, e.g. lever pushing on the spring
    • 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
    • H01R4/58—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 characterised by the form or material of the contacting members
    • H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors

Definitions

  • the invention is based on a connecting device which has at least one service switching device with a housing and at least one screwless terminal and at least one connecting element, wherein the connecting element has at least one connecting conductor with at least one contact lug arranged thereon, according to the preamble of claim 1.
  • connection element that can be used in a generic connection device is a busbar.
  • a bus bar is a device for simultaneously electrically connecting a plurality of juxtaposed terminals of one or more stacked service switching devices.
  • the pole rail of the busbar and of the pole rail usually approximately comb-like protruding tabs are made of a rigid and electrically highly conductive material, a rigid guide plate, for example, preferably made of copper or a highly conductive copper alloy.
  • the pole rail is accommodated in an insulating profile from which the contact lugs protrude through openings at the points provided for this purpose.
  • connection element that can be used in a generic connection device is a connector.
  • Connectors serve to establish an electrical connection between the terminals, for example, a motor protection switch and a contactor.
  • a connector for connecting two three-phase devices has, for example, three connection conductors, which can be arranged together in a Isolierstoffgeophuse, projecting from each connection conductor two tabs, one for insertion into the terminal of the motor protection switch and one for insertion into the terminal of the contactor.
  • connection element that can be used in a generic connection device for the electrical connection of a three-pole contactor is a so-called turning connector.
  • This is in principle a three-pole connector in which the connection conductors between the individual poles of the two devices to be connected are arranged so that the direction of rotation of a connected motor reverses.
  • connection of a connecting element takes place in two steps. First, the connecting element is placed on the open screw terminals, while the contact lugs are inserted into the open screw terminals. Then the clamping screws are tightened one by one.
  • the spring clamp has a clamping frame and an approximately ⁇ -shaped clamping spring, which has a support wing, a clamping wing with slot for clamping the connecting conductor and a loop which forms a spring and connects the support with the clamping wing.
  • a clamping screw known as a cage spring clamp assembly
  • the spring clamp has a clamping frame and an approximately ⁇ -shaped clamping spring, which has a support wing, a clamping wing with slot for clamping the connecting conductor and a loop which forms a spring and connects the support with the clamping wing.
  • the restoring spring force of the loop retracts the clamping wing and the lead is clamped in the slot.
  • the clamping force is adjusted reproducibly by the spring force of the spring loop and no longer dependent on with which torque the mechanic puts on the clamping screw.
  • the tool is again required to press the clamping wing back into its open position.
  • the clamp is of the type which has at least one clamping spring acting as a compression spring on a clamping point of the contact lug for clamping the contact lug and for pressing a contact point of the contact lug against a bus bar, and the contact lug is in the region in which the clamping spring rests the nip presses, a greater surface hardness than at least at the contact point, so that a cutting of the clamping spring is prevented in the contact lug in the region of the nip.
  • the object is achieved according to the invention thus by two measures.
  • the first relates to the use of another type of screwless spring clip, namely of the type having at least one clamping spring acting as a compression spring on a clamping point of the contact lug for clamping a connecting conductor.
  • This type is also known as a spring-loaded clamp, also known in English as a "push-in" clamp.
  • At the spring pressure clamp can be rigid connection conductor, such as a contact lug, are inserted without opening tool.
  • the spring pressure clamp has a support wing, a clamping wing for clamping the connection conductor or the contact lug at the free end of the clamping wing and a loop which forms a spring and connects the support with the clamping wing.
  • a connector such as a bus bar with its plurality of adjacent rigid tabs, or even a male or female connector, can be easily inserted and clamped into a plurality of adjacent clamping apertures without the need for a tool.
  • the clamping end of the clamping wing When pressed, the clamping end of the clamping wing could be pressed into the material of the contact lug, in particular if it consists of a highly conductive copper alloy. The clamping end of the clamping wing could then hook a little in the contact lug. This can cause a pulling out of the busbar without additional tools is no longer easy and only with considerable effort against the Verhakungswiderstand is possible, with repeated pulling the clamping spring or the contact lug could be damaged. To pull out the busbar, it might then be necessary to push each spring back from the contact lug only a little way away, by means of a tool.
  • the second inventive measure is therefore that the contact lug in the region in which the clamping spring presses on the clamping point, a greater surface hardness than in the rest of the contact lug, in particular as at the contact point at which the contact lug is pressed against the busbar.
  • the contact lug consists of a good electrically conductive but mechanically rather soft copper alloy
  • the surface is hardened in the region in which the clamping spring presses on the clamping point.
  • the advantageous effect is that in this hardened surface area, the clamping end of the clamping spring can not be pressed into the material, thus the terminal end of the clamping wing no longer hooked, and consequently the busbar can also be pulled out without tools again.
  • the surface of a locally limited Place to harden In the hardened region, the electrical conductivity may be reduced, depending on how hardened. But that is not disadvantageous, since at the contact point where the contact lug is pressed against the busbar, yes not hardened and thus, where it depends on a low electrical contact resistance, the good electrical conductivity of the material of the contact lug is maintained. Only at the point where it depends on a good mechanical hardness, but not on a good electrical conductivity, the surface of the contact lug is cured.
  • the hardening on the surface can, for example, take place in such a way that a plate of another, hard material is placed on the surface of the contact lug or embedded in the surface in the relevant area.
  • the other, hard material may be a less electrically conductive material, such as stainless steel, it could even be a non-conductor in the extreme case.
  • the remaining volume of the contact lug and in particular the surface on the side facing the busbar consists of a material with good electrical conductivity, for example copper or brass.
  • the contact lug is a metal strip of two layers of different hardness and different conductive metals, which are materially or positively connected with a first layer with the greater hardness facing the clamping end of the clamping spring, and the second layer with the facing greater electrical conductivity of the busbar.
  • the first layer may consist of stainless steel and the second layer of copper or brass.
  • such a contact lug according to this embodiment is similar to a bimetallic strip formed, but as possible materials with similar coefficients of thermal expansion are used to avoid a temperature-induced bending of the contact lug.
  • the connecting element has an insulating profile in which the one or more connecting conductors is embedded with the or the contact lugs or, so in an advantageous embodiment, the insulating profile is formed with the manually operable opening member.
  • connection pressure at the terminal point may be loosened or the contact lug may be "shaken out" of the connection terminal.
  • the locking member prevents loose shaking of the connecting element.
  • the connecting element has an insulating profile in which the one or more connecting conductors is embedded with the or the contact lugs or, so in an advantageous embodiment, the insulating profile is formed with the manually operable opening member.
  • this can be realized in a busbar with insulating profile.
  • the locking member prevents here also a loose shaking the busbar total.
  • the locking member is formed to a releasable locking connection with the locking means on the housing, so that the connecting element, for example, the busbar with the insulating profile can also be removed again.
  • An advantageous example of a locking member according to the invention is a locking lug on a resiliently clamped locking bar on one side, and the corresponding locking means on the housing can be in an advantageous example, a molded on the housing corresponding locking lug or a detent opening.
  • busbar with insulating profile is chosen and described here by way of example only and by way of example, the choice of this example is by no means meant to be limiting.
  • the idea of the invention described using the example of the busbar can be easily transferred to other connecting elements, in particular to plug connectors and reversing connectors, without the need for further figurative explanations.
  • FIG. 11 shows a connecting device 100 according to the invention.
  • this has two three-phase motor protection switches 1, 1 'arranged next to one another at their broad sides.
  • Each of the two motor protection switches 1, 1 ' has three access terminals 3, 4, 5, 3', 4 ', 5' and in each case opposite three outgoing terminals, in the figure only two can be seen, with the reference numerals 6, 7.
  • a busbar 8 to be infected The busbar 8 has an insulating profile 9, in which a pole rail 10 (see FIG. 12 ) is arranged on the comb-like six contact lugs 11, 12, 13, 14, 15, 16 are formed and projecting perpendicular to the longitudinal direction of the pole rail.
  • the busbar 8 is attached with the contact lugs 11, 12, 13, 14, 15, 16 ahead perpendicular to the front side 17 of the motor protection switch, the contact lugs then engage in the terminal openings.
  • FIG. 12 shows in a detail view one of the terminals from diagonally above.
  • the insulating profile is here removed from the busbar, you can see the pole rail 10 and two of the contact lugs 12, 13.
  • the terminal is a spring plug terminal as a clamping spring 40. One sees the upper part of the loop 18 and a part of the clamping wing 19.
  • the contact lug 12 is located shortly before insertion into the terminal opening.
  • FIG. 1 shows schematically and exemplarily a cross section through a part of the connecting device 100 as shown in FIG.
  • an insertion opening 28 is formed for inserting the contact lug 11 of the busbar 8 to the Clamping point in the direction of arrow P.
  • the nip is formed by a spring plug terminal.
  • This has a clamping spring 40 with a support wing 25, a clamping wing 19 and a loop 18 which connects the clamping wing 19 with the support wing 25 and which forms a spring and causes the restoring spring force on the clamping wing.
  • the clamping wing 19 has a slight kink, its terminal end 24 is slightly upwards, to the front side 21, bent.
  • the clamping spring 40 With the support wing 25, the clamping spring 40 is supported on a support rail 26 in the interior of the service switching device 1. With the clamping end 24, the clamping spring 40 presses an inserted connecting conductor, for example the contact lug 11, against a busbar 27. The electrical contact takes place between the busbar 27 and the contact lug 11, see FIG.
  • the busbar 27 and the support rail 26 may be parts of a common terminal frame, but they may also be designed as individual parts.
  • the support rail 26 could also be designed as a housing projection.
  • At the busbar 27 further conductor pieces are then connected inside the service switching device 1, which continue the current path from the terminal point inside the service switching device 1.
  • busbar 8 and the motor protection switch 1 are still separated from each other.
  • the busbar 8 can be inserted into the insertion opening 28 in the direction of the arrow P, with the contact lug 11 ahead.
  • FIG. 2 shows the state in which the busbar 8 is inserted with the contact lug 11 ahead in the insertion opening 28.
  • the clamping end 24 of the clamping wing 19 presses against one side of the contact lug 11.
  • the area in which the clamping end 11 rests against the contact lug 11 is designated as a clamping point 29. Due to the pressure effect of the clamping end 24 of the clamping wing 19 on the contact lug 11 of the nip 29 opposite side of the contact lug 11 is pressed flat against the busbar 27.
  • the region in which the clamping point 29 opposite side of the contact lug 11 bears flat against the busbar 27 is referred to as a contact point 30.
  • the electrical contact between the pole rail 10 and the bus bar 27 takes place. There, the current flows from the pole rail into the service switching device 1 or out of the service switching device 1 in the pole rail out. At the contact point 30 should therefore prevail a low electrical contact resistance. If the pole rail with the contact lugs 11 made of a highly conductive material, such as copper or a copper alloy, which is accessible at a sufficiently large contact pressure from the side of the clamping spring and its terminal end forth on the nip.
  • a spring steel used for the production of the clamping spring 40 is usually not a good electrical conductor, it is specially optimized in terms of its elastic properties.
  • the contact lug 11 has in the area in which the clamping spring presses with the clamping end 24 on the clamping point 29, a greater surface hardness than at least at the contact point 30.
  • the area with the greater surface hardness is in the figures here in the example as a black colored Area 29 shown.
  • the advantageous effect is that such a cutting of the clamping end 24 of the clamping spring is prevented in the well-conducting, but less hard material of the contact lug 11 in the region of the clamping point 29.
  • the busbar can therefore be easily pulled out of the insertion opening 28 again, without a tool for bending back the clamping wing 19 would be needed.
  • the clamping end 24 will simply slide on the hard surface of the region 29 when pulled out.
  • the hardening of the surface in region 29, the nip can in the example be effected by placing a plate of another, hard material on the surface the contact lug 11 is placed in the region 19 or embedded in the surface of the contact lug 11 in the region 19.
  • the other, hard material may be an electrically poorly conductive material or a non-conductor.
  • Other methods of surface hardening which are known in principle, can also be used to produce a higher surface hardness, at least in the region 29, of the nip, than in the region of the contact point 30.
  • the hardened region 29 is shown here as a spatially narrowly defined region. This is also sufficient to fulfill the advantageous function of the invention.
  • the hardened region 29 can also be larger than shown here in the example in the example; it could even extend to the entire one broad side of the contact lug 11. It is important that in the remaining volume of the contact lug 11 and the pole rail 10 and at the contact point 30, the material of the pole rail and the contact lug 11 has a high electrical conductivity.
  • FIG. 13 and 14 differs from that in the FIGS. 1 and 2 shown by the fact that the contact lug 11 'is a metal strip of two layers 29', 29 "of different hardness and different conductive metals, which are materially or positively connected, wherein a first layer 29 'with the greater hardness of the clamping end 24 of the clamping spring 40th facing, and the second layer 29 "facing the busbar 27 with the greater electrical conductivity.
  • the first layer 29 ' may be made of stainless steel and the second layer 29 "of copper or brass."
  • a contact lug 11' according to this embodiment is similar to a bimetallic strip, but materials with similar coefficients of thermal expansion are preferably used Temperature-induced bending of the contact lug 11 'to avoid.
  • FIGS. 6 and 7 differs from that in the FIGS. 1 and 2 shown embodiment in that here the insulating profile 9 is formed with a locking member 31 which cooperates with a matching detent element 32 on the housing of the service switching device, here in the example on the rear narrow side 23, latching when the clamping spring with the terminal end 24, the contact lug 11 clamped at the terminal point 29 and presses at the contact point 30 to the busbar 27.
  • the locking member 31 is a latching nose 33 on a resiliently clamped on one side Locking bar 34.
  • the corresponding locking element 32 on the housing is formed on the housing corresponding latching lug or a detent opening (not shown in the figure).
  • the locking member 31 in engagement with the locking element 32 prevents shaking loose of the insulating 9 and thus also shaking loose the busbar in an industrial environment, and thus supports the clamping action of the clamping end 24 of the clamping spring 40 on the contact lug 11.
  • the locking member 31 are tool bent away with one or more fingers, so that the locking lug 33 releases the locking element 32, and with the same hand or the other hand then the busbar 8 can be pulled out of the insertion opening 28.
  • FIGS. 8-10 differs from that in the FIGS. 1 and 2 shown embodiment in that here the insulating profile 9 is formed with a manually operable opening member 35 which presses the clamping end 24 of the clamping spring away from the nip 29 on actuation and thus removing the contact lug 11 from the terminal allows without the use of an additional tool.
  • This is advantageous since, in the case of a long-lasting operation of a connecting device 100 according to the invention under unfavorable circumstances, gluing or otherwise adhering the clamping wing 19 to the contact lug 11 could occur, thereby making it difficult to pull out the busbar 8.
  • the insulating profile 9 is formed with a manually operable opening member, as it is merely exemplary in the FIGS. 8-10 is shown.
  • the opening member 35 is formed in the example in the form of a Doppelarmhebels 35 here.
  • Whose pivot axis 36 is located on a Anformung 37 on the insulating 9, which protrudes from the insulating section 9 a piece.
  • a first arm 38 of the double-armed lever extends approximately parallel to the contact lug 11 in the direction of the clamping wing 19 of the clamping spring 40.
  • a second arm 39 of the double-armed lever extends into the space outside of the insulating profile 9 and is inserted with busbar externally operable by hand. In the embodiment shown here, by way of example only, the second arm is slightly angled so that it is better accessible with a finger for actuation.
  • FIG. 8 shows the busbar separate from the service switching device.
  • FIG. 9 shows the busbar 8 plugged onto the insertion opening 28 of the service switching device 1.
  • the free end of the first arm 38 of the opening member 35 terminates in this case just before the clamping wing 19 of the clamping spring 40th
  • FIG. 10 shows the situation when operating the opening member. Pressure on the second arm 39 in the direction of arrow D pivots the first arm 38 in a clockwise direction, this presses the clamping end 24 of the clamping wing 19 away from the nip, indicated by the arrow E, and the contact lug 11 can be pulled upwards, see Arrow F.
  • the insulating 9 is both with a manually operable opening member 35, as in connection with the FIGS. 8-10 explained, trained, as well as in addition with a locking member 31 which cooperates with a detent element 32 adapted thereto latching to the housing of the service switching device, as in connection with the FIGS. 6 and 7 has already been explained above.
  • the contact lug may each be formed as a metal strip of two layers of different hard and different conductive metals, which are materially connected or positively connected, wherein a first layer with the greater hardness facing the clamping end of the clamping spring 40, and the second layer facing with the greater electrical conductivity of the busbar, according to the in the Figures 13 and 14 shown way.
  • a first layer with the greater hardness facing the clamping end of the clamping spring 40, and the second layer facing with the greater electrical conductivity of the busbar according to the in the Figures 13 and 14 shown way.
  • this is to be omitted for the sake of simplicity.
  • the combination of a formed as a metal strip of two layers of different hard and different conductive metals contact lug with at least one of the embodiments according to at least one of Figures 1-2 and 3 - 11 hereby expressly disclosed.

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  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
EP16174927.0A 2015-07-10 2016-06-17 Dispositif de connexion comprenant une borne enfichable Active EP3118933B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015111226 2015-07-10
DE102016110174.5A DE102016110174A1 (de) 2015-07-10 2016-06-02 Verbindungsvorrichtung mit Steckklemme

Publications (2)

Publication Number Publication Date
EP3118933A1 true EP3118933A1 (fr) 2017-01-18
EP3118933B1 EP3118933B1 (fr) 2022-02-16

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Application Number Title Priority Date Filing Date
EP16174927.0A Active EP3118933B1 (fr) 2015-07-10 2016-06-17 Dispositif de connexion comprenant une borne enfichable

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2713832A1 (fr) * 1993-12-08 1995-06-16 Fischer Francois Plot de connexion, notamment pour fils de lignes téléphoniques.
EP0928043B1 (fr) 1997-12-29 2006-04-12 Schneider Electric Industries SAS Dispositif de connexion à cage élastique
WO2010015308A1 (fr) * 2008-08-05 2010-02-11 Abb Ag Appareil de commutation d'installation doté d'une connexion de bornes sans vis
DE102010012820A1 (de) * 2010-03-25 2011-09-29 Wago Verwaltungsgesellschaft Mbh Leitereinführungsstecker

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2713832A1 (fr) * 1993-12-08 1995-06-16 Fischer Francois Plot de connexion, notamment pour fils de lignes téléphoniques.
EP0928043B1 (fr) 1997-12-29 2006-04-12 Schneider Electric Industries SAS Dispositif de connexion à cage élastique
WO2010015308A1 (fr) * 2008-08-05 2010-02-11 Abb Ag Appareil de commutation d'installation doté d'une connexion de bornes sans vis
DE102010012820A1 (de) * 2010-03-25 2011-09-29 Wago Verwaltungsgesellschaft Mbh Leitereinführungsstecker

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Publication number Publication date
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