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EP3084891B1 - Metal protective conductor connection element, and electric series terminal - Google Patents

Metal protective conductor connection element, and electric series terminal Download PDF

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Publication number
EP3084891B1
EP3084891B1 EP14795829.2A EP14795829A EP3084891B1 EP 3084891 B1 EP3084891 B1 EP 3084891B1 EP 14795829 A EP14795829 A EP 14795829A EP 3084891 B1 EP3084891 B1 EP 3084891B1
Authority
EP
European Patent Office
Prior art keywords
metal
metal foot
protective conductor
conductor connection
spring element
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
EP14795829.2A
Other languages
German (de)
French (fr)
Other versions
EP3084891A1 (en
Inventor
Ralph Hoppmann
Kevin Berghahn
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.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact GmbH and Co KG
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 Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP3084891A1 publication Critical patent/EP3084891A1/en
Application granted granted Critical
Publication of EP3084891B1 publication Critical patent/EP3084891B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00Structural 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
    • H01R9/22Bases, e.g. strip, block, panel
    • H01R9/24Terminal blocks
    • H01R9/26Clip-on terminal blocks for side-by-side rail- or strip-mounting
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00Structural 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
    • H01R9/22Bases, e.g. strip, block, panel
    • H01R9/24Terminal blocks
    • H01R9/26Clip-on terminal blocks for side-by-side rail- or strip-mounting
    • H01R9/2691Clip-on terminal blocks for side-by-side rail- or strip-mounting with ground wire connection to the rail

Definitions

  • the invention relates to a metallic protective conductor connection element for arrangement on a terminal housing having an electrical terminal block. Furthermore, the invention relates to an electrical terminal, in particular protective conductor terminal, with such a metallic protective conductor connection element for placement on a mounting rail.
  • a metallic protective conductor connection element for arrangement on a terminal block which has a plurality of disk-shaped metal feet connected to one another. At least one latching lug for fixing the protective conductor connection element to at least one latching opening of a side wall of the terminal housing is formed on the metal feet. Furthermore, the metal feet each have two hook and spring means, by means of which the protective conductor connection element can be snapped onto a mounting rail by the protective conductor connection element is positively locked at all connection points with the support rail to the support rail.
  • the hook and spring means are also designed such that all metal feet of a protective conductor connection element can get caught on a foot element of the terminal housing.
  • a handling bag is formed on the foot element, into which an unlocking tool, for example a tip of a screwdriver, can be inserted in order to deflect the foot element and thus also the hook and spring means of the metal feet hooked in the foot element, that the entire terminal block can be removed from the mounting rail.
  • an unlocking tool for example a tip of a screwdriver
  • the disadvantage here is that high forces must be applied by means of the unlocking tool for such a snapping the terminal, in particular the protective conductor connection element, of the support rail, whereby the handling is difficult for a user.
  • the invention is therefore based on the object to provide a metallic protective conductor connection element and an electrical terminal, in which the forces required for snapping the terminal or the metallic protective conductor connection element can be reduced by a mounting rail, without affecting the current carrying capacity.
  • a metallic protective conductor connection element to have a metal base arrangement for arrangement on an electrical terminal having a terminal housing, which has at least one first metal base for resting on a mounting rail and at least one second metal foot for resting on the mounting rail, wherein the first metal base is a first metal foot Spring element and a second spring element with a mounting area for forming a positive connection of the second spring element of the first metal base with the support rail and wherein the second metal base a first spring element with a mounting portion for forming a positive connection of the first spring element of the second metal base with the support rail and a second spring element for forming a positive connection of the second spring element of the second metal base having the mounting rail, wherein the mounting portion of the second spring element has a trained as an angled rear handle detent surface which engages behind in an assembled state of the metal base on the mounting rail, so that the second spring element of
  • the protective conductor connection element is characterized in particular in that it has two different types of metal feet, wherein one or more metal feet can be provided by the two types of metal feet per protective conductor connection element.
  • These two types of metal feet wherein the first type of metal base is formed by the first metal base and the second type of metal base by the second metal base, differ from each other in that only one of the two metal feet, the second metal base, with its both spring elements in the assembled state locked to the support rail by a positive connection, whereas the other metal base, namely the first metal base, locked only with one of its two spring elements in the mounted state on the mounting rail by a positive connection and the other of the two spring elements mounted in the Condition on the mounting rail by a non-positive connection only rests and thus not just locked to the support rail.
  • the spring elements of the first metal base are thus inventively designed such that the first spring element has a contact region for the non-positive engagement of the first spring element on the mounting rail and the second spring element has a fastening region, in particular latching region, for the form-fitting fastening of the second spring element to the mounting rail.
  • the first metal base With the abutment region of the first spring element, the first metal base thus merely rests against the mounting rail and is thus preferably not fastened to the mounting rail, for example by means of a rear hook or latching on the mounting rail.
  • both spring elements each have a fastening region, in particular a latching region, with which the second metal base is fastened in a form-fitting manner to the mounting rail in the mounted state.
  • the second spring elements of the first and second metal feet are formed with their attachment areas similar or even identical to each other, whereas the first spring elements of the first and second metal base substantially different from each other, since only the first spring element of the second metal foot on the support rail can be fastened in a form-fitting manner and the first spring element of the first metal leg bears against the support rail in a force-locked manner only in the assembled state, but is not fastened to it in a form-fitting manner.
  • the first one Spring element of the first metal base in the assembled state only frictionally rests on the mounting rail and is not attached to this form-fitting, the necessary forces for snapping the protective conductor terminal element or the terminal block of the mounting rail can be substantially reduced.
  • the contact area for forming a non-positive connection with the mounting rail can be formed, for example, by a rounded surface formed on the first spring element of the first metal base.
  • the attachment areas for forming a positive connection with the mounting rail preferably have a latching surface, for example a latching lug, which can hook behind on the support rail to form the positive connection can.
  • the one or more first metal feet forms an electrical one Contacting between the terminal block, in particular the busbar of the terminal block, and the mounting rail, so that despite a reduction of the Abrast fixture, due to that for the or the first metal feet the Abrastkraft applied can be reduced by the formation of one of the two spring elements with a contact area, the quality of the electrical contact is not reduced and thus the current carrying capacity of the protective conductor connection element is not affected, in particular not reduced, is. In particular with large conductor cross sections can thus with the protective conductor terminal element despite a reduction the applied Abrastware good current carrying capacity can be achieved.
  • the second metal base has a latching element for latching to a foot member of the terminal housing, so that is locked in an assembled state of the metallic protective conductor connection element to the terminal only the second metal base of the Metallfußanssen in the base member of the terminal housing.
  • only one type of metal feet namely the second metal base
  • the other type of metal feet, namely the first metal foot preferably has no latching element and thus can not be locked in the foot member of the terminal housing.
  • Both types of metal feet are used for electrical contacting of the terminal block with the mounting rail, but preferably only the second metal base and thus not the first metal foot is used in addition to the secure attachment of the protective conductor connection element to the foot member of the terminal housing of the terminal.
  • the protective conductor connection element is thus preferably formed from a combination of metal feet with and without treading on the foot element of the terminal housing.
  • the necessary force for latching can be reduced in such a way that despite the reduction still a sufficiently high contact force is formed to the support rail and in particular during a Abrastvorgang the locking element as a link between an unlocking tool, such as a screwdriver, and the protective conductor terminal element is not destroyed.
  • the locking element may be formed, for example in the form of a hook.
  • the metal base assembly may include one or more first metal feet and one or more second metal feet. It is preferably provided that the Metallfußan extract two second metal feet and at least one first metal base, wherein the at least one first metal base is preferably arranged between the two second metal feet.
  • the respective second metal feet each having a latching element are thus preferably arranged on the outer sides of a metal base arrangement, wherein the first metal feet, which have no latching element, are preferably arranged in an inner region of the metal base arrangement. In this way, an unintentional release of the first metal base from the metal base assembly can be prevented, since the first metal base, which does not latch in the mounted state in the base element of the terminal housing, is securely clamped between two second metal feet with latching.
  • the first metal base and the second metal base have at least one mounting coding.
  • the mounting coding allows the metal feet to be handled easily in a fixture. In particular, this can be a targeted control of the order of the first and second metal feet to form the Metallfußan ever be made possible.
  • the mounting coding may be formed on an outer peripheral surface of the first metal base and / or on an outer peripheral surface of the second metal foot.
  • the mounting code By forming the mounting code on an outer peripheral surface of the metal feet, the handling of the mounting coding and thus the metal feet can be facilitated in a mounting device, whereby in particular an insertion of the metal feet can be facilitated in the mounting device in dependence on the mounting coding.
  • the mounting coding is formed on the inside of the first metal base and / or the second metal base.
  • a first mounting coding on a in a mounted state of the metallic protective conductor connection element on the mounting rail in the direction of mounting rail facing underside of the first metal base and / or on a mounted in a mounted state of the metallic protective conductor connection element on the mounting rail in the direction of mounting rail underside of the second metal base is formed. If a mounting coding is formed on a lower side of a metal base, this can cooperate with a counter-coding formed on the terminal housing of the terminal block, whereby it can be ensured that the metal feet are combined in the desired combination into a metal base arrangement, in particular blocked.
  • This first mounting coding can be formed for example in the form of a recess.
  • a counter-coding formed on the terminal housing can hook into a first mounting coding designed as a recess. Trained as a recess first mounting coding can be extended as desired, starting from a common basic design in shape or contour as desired.
  • the recess may be formed in its basic configuration, for example U- or V-shaped.
  • a second mounting coding for example, on the locking element of the first spring element of the second Metal foot be formed.
  • this second mounting coding on the latching element of the first spring element of the second metal base, it can cooperate with a counter-coding formed in the base element of the terminal housing of the terminal block.
  • the second mounting coding can be designed, for example, in the form of a hook, which can then, for example, hook into a counter-coding formed as a recess on the base element of the terminal housing.
  • the counter-coding formed as a recess can be, for example, a receiving space in the foot element of the terminal housing, in which the catch element of the second metal foot can also hook.
  • the first metal base and / or the second metal foot may have at least one fastening means.
  • the fastening means are preferably adapted to the thickness of the busbar, the adjustment can be made for example by a targeted selection of the length of the fastening means.
  • the fastening means may be designed as pins that can be riveted to the busbar, or as locking lugs that can engage in openings on the busbar.
  • the fastening means are preferably formed integrally with the respective metal base.
  • the object of the invention is further achieved with an electrical terminal, in particular a protective conductor terminal, for placing on a mounting rail, which is a terminal housing formed of insulating material, Having at least two conductor connection elements, at least one of the conductor connection elements electrically connecting, arranged in the terminal housing busbar and as educated above and further educated, an electrically conductive connection between the busbar and the support rail serving metallic protective conductor terminal element.
  • an electrical terminal in particular a protective conductor terminal, for placing on a mounting rail, which is a terminal housing formed of insulating material, Having at least two conductor connection elements, at least one of the conductor connection elements electrically connecting, arranged in the terminal housing busbar and as educated above and further educated, an electrically conductive connection between the busbar and the support rail serving metallic protective conductor terminal element.
  • a first metal leg 10 which is disc-shaped and has a first spring element 11a and a second spring element 11b, which are formed at two opposite ends of the metal base 10.
  • the spring elements 11a, 11b are bent, bent substantially C-shaped.
  • the first spring element 11a has a contact region 12, which points in the direction of the second spring element 11b, for frictional engagement with a contact element as in FIG Fig. 6 and 7 shown support rail 60.
  • the second spring element 11b has a fastening region 13 pointing in the direction of the first spring element 11a for the positive fastening of the second spring element 11b to the mounting rail 60.
  • the abutment region 12 of the first spring element 11a lies in a mounted state of the metal base 10 on the mounting rail 60, as shown in FIG Fig. 6 and 7 is shown, only non-positively on the support rail 60, so that by means of the contact area 12 no attachment, in particular no latching, the first spring element 11a of the metal base 10 formed on the support rail 60 is.
  • the first spring element 11a is thus not latched in the mounted on the support rail 60 state on the support rail 60 and thus does not engage behind the support rail 60.
  • the abutment region 12 of the first spring element 11a is rounded in the embodiment shown here.
  • the attachment region 13 of the second spring element 11b has a latching surface or latching lug designed as an angled rear grip 14, which in a mounted state of the metal base 10 on the support rail 60 engages behind or under the support rail 60 so that the second spring element 11b of the first metal base 10 can lock with its mounting portion 13 on the support rail 60.
  • two spring elements 11a, 11b are further formed two elastically formed support legs 15a, 15b, which rest in an assembled state of the first metal leg 10 on the support rail 60 on the support rail 60.
  • a first mounting coding 16a provided in the form of a U-shaped recess is furthermore formed.
  • the first mounting coding 16a is formed on a underside 17 of the first metal base 10 which points in the mounted state in the direction of the mounting rail 60.
  • the first metal foot 10 further comprises two adjacent to each other arranged fastening means 18, which are each formed in the form of a pin.
  • the fastening means 18 are integrally formed opposite to the first mounting coding 16 a on the outer peripheral surface of the first metal base 10.
  • a second disc-shaped metal base 20 which likewise has a first spring element 21a and a second spring element 21b, which are formed at opposite ends of the second metal leg 20.
  • the spring elements 21a, 21b of the second metal leg 20 are bent, in particular C-shaped bent formed.
  • the first spring element 21a of the second metal leg 20 differs from the first spring element 11a of the first metal leg 10 in that the first spring element 21a of the second metal leg 20 has a fastening region 22 with which the first spring element 21a of the second metal leg 20 is in an assembled state the second metal leg 20 on the support rail 60 positively engage the support rail 60 and the support rail 60 can engage behind or under.
  • the first spring element 21a thus not only rests against the mounting rail 60 in the second metal base 20 in the state mounted on the mounting rail 60, but is also fastened to it in a form-fitting manner, for example by latching.
  • the attachment region 22 of the first spring element 21a of the second metal base 20 has for this purpose a latching surface, in particular a latching lug, which, in the mounted state the support rail can engage behind or under.
  • a latching element 29 is formed, which is formed in extension of the first spring element 21a of the second metal leg 20.
  • the latching element 29 is hook-shaped and can be mounted in a mounted on a terminal housing 52 of a terminal 50 state in a base member 51 of the terminal block 50, as shown in FIG Fig. 6 and 7 is shown, lock.
  • the second spring element 21b of the second metal leg 20 is formed substantially identically to the second spring element 11b of the first metal leg 10 and has a fastening region 23 with a latching surface or latching lug formed as a rear grip 24, by means of which the second spring element 21b of the second metal base 20 the support rail 60 can be positively secured by latching or under or behind the support rail 60.
  • first mounting coding 26a is formed on an underside 27 of the second metal base 20 pointing in the direction of the mounting rail 60 in the mounted state.
  • first mounting coding 26a of the second metal base 20 is in its contour with respect to in Fig.
  • the second metal leg 20 in contrast to the first metal leg 10 has a second mounting coding 26b, wherein the second mounting code 26b is hook-shaped and formed on the locking element 29 such that the second mounting code 26b together with the locking element 29 form a substantially T-shape.
  • the second metal leg 20 For fixing the second metal leg 20 to a busbar 40, the second metal leg 20, as well as the first metal leg 10, has two adjacently arranged peg-shaped fastening means 28.
  • a possible embodiment of a Metallfußan angel 30 is shown, wherein the in Fig. 3 shown Metallfußan angel 30 a first metal base 10, as shown in Fig. 1 and two second metal feet 20 as shown in FIG Fig. 2 are shown.
  • the first Metal base 10 is arranged between the two second metal feet 20.
  • Fig. 4 another possible embodiment of a Metallfußan elbow 30 is shown, wherein the in Fig. 4 shown metal feet assembly 30 three first metal feet 10, as shown in Fig. 1 and two second metal feet 20 as shown in FIG Fig. 2 are shown. The three first metal feet 10 are arranged between the two second metal feet 20.
  • Fig. 5 shows an arrangement in which the in Fig. 3 shown Metallfußan Aunt 30 is attached to a bus bar 40.
  • the busbar 40 has for this purpose two elongated, mutually parallel openings 41, through which the fastening means 18, 28 of the metal feet 10, 20 are passed and are riveted to the busbar 40.
  • Fig. 6 and 7 show a terminal block 50, which is a protective conductor terminal element with a as in Fig. 3 shown Metallfußan elbow 30, via which the terminal block 50 is snapped onto the support rail 60, so that in Fig. 6 and 7 a mounted state of a protective conductor connection element on a mounting rail 60 and a mounted state of a protective conductor connection element in a terminal block 50 is shown.
  • Terminal block 50 also referred to as a protective conductor terminal, has a terminal housing 52 formed from insulating material, two conductor connection elements 53 and a conductor rail 40 electrically connecting the conductor connection elements 53.
  • the terminal housing 52 has a Foot member 51, wherein within the foot member 51, a receiving space 54 is formed, in which in the assembled state, as in Fig. 6 and 7 is shown, the locking element 29 and also formed on the locking element 29 second mounting coding 26b of the second metal base 20 are added.
  • a handling pocket 55 is formed, into which an unlocking tool 70, for example, a tip of a screwdriver, as shown in FIG Fig.
  • the first mounting coding 16a, 26a of the first and second metal feet 10, 20 of the Metallfußan extract 30 is hooked into a formed on the terminal housing 52 of the terminal block 50 counter-coding 56.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Mounting Components In General For Electric Apparatus (AREA)

Description

Die Erfindung betrifft ein metallisches Schutzleiteranschlusselement zur Anordnung an einer ein Klemmengehäuse aufweisenden elektrischen Reihenklemme. Ferner betrifft die Erfindung eine elektrische Reihenklemme, insbesondere Schutzleiterklemme, mit einem derartigen metallischen Schutzleiteranschlusselement zum Aufsetzen auf eine Tragschiene.The invention relates to a metallic protective conductor connection element for arrangement on a terminal housing having an electrical terminal block. Furthermore, the invention relates to an electrical terminal, in particular protective conductor terminal, with such a metallic protective conductor connection element for placement on a mounting rail.

Aus der DE 103 24 144 B4 ist ein metallisches Schutzleiteranschlusselement zur Anordnung an einer Reihenklemme bekannt, welches mehrere miteinander verbundene scheibenförmige Metallfüße aufweist. An den Metallfüßen ist jeweils mindestens eine Rastnase zum Fixieren des Schutzleiteranschlusselementes an mindestens einer Rastöffnung einer Seitenwand des Klemmengehäuses ausgebildet. Ferner weisen die Metallfüße jeweils zwei Haken- und Federmittel auf, mit deren Hilfe das Schutzleiteranschlusselement auf eine Tragschiene aufgerastet werden kann, indem das Schutzleiteranschlusselement an allen Verbindungsstellen mit der Tragschiene formschlüssig an der Tragschiene verrastet ist. Die Haken- und Federmittel sind zudem derart ausgebildet, dass alle Metallfüße eines Schutzleiteranschlusselementes an einem Fußelement des Klemmengehäuses verhaken können. An dem Fußelement ist eine Handhabungstasche ausgebildet, in die ein Entriegelungswerkzeug, beispielsweise eine Spitze eines Schraubendrehers, eingesteckt werden kann, um das Fußelement und damit auch die in dem Fußelement verhakten Haken- und Federmittel der Metallfüße derart auszulenken, dass die gesamte Reihenklemme von der Tragschiene abgenommen werden kann. Nachteilig hierbei ist, dass für ein derartiges Abrasten der Reihenklemme, insbesondere des Schutzleiteranschlusselementes, von der Tragschiene hohe Kräfte mittels des Entriegelungswerkzeugs aufgebracht werden müssen, wodurch die Handhabung für einen Benutzer erschwert ist.
Der Erfindung liegt daher die Aufgabe zu Grunde, ein metallisches Schutzleiteranschlusselement und eine elektrische Reihenklemme zur Verfügung zu stellen, bei welchen die notwendigen Kräfte zum Abrasten der Reihenklemme bzw. des metallischen Schutzleiteranschlusselementes von einer Tragschiene reduziert werden können, ohne die Stromtragfähigkeit zu beeinflussen.
Diese Aufgabe wird erfindungsgemäß mit den Merkmalen der unabhängigen Ansprüche gelöst. Zweckmäßige Ausgestaltungen und vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.
Erfindungsgemäß ist es vorgesehen, dass ein metallisches Schutzleiteranschlusselement zur Anordnung an einer ein Klemmengehäuse aufweisenden elektrischen Reihenklemme eine Metallfußanordnung aufweist, welche mindestens einen ersten Metallfuß zur Auflage auf einer Tragschiene und mindestens einen zweiten Metallfuß zur Auflage auf der Tragschiene aufweist, wobei der erste Metallfuß ein erstes Federelement und ein zweites Federelement mit einem Befestigungsbereich zur Ausbildung einer formschlüssigen Verbindung des zweiten Federelementes des ersten Metallfußes mit der Tragschiene aufweist und wobei der zweite Metallfuß ein erstes Federelement mit einem Befestigungsbereich zur Ausbildung einer formschlüssigen Verbindung des ersten Federelementes des zweiten Metallfußes mit der Tragschiene und ein zweites Federelement zur Ausbildung einer formschlüssigen Verbindung des zweiten Federelementes des zweiten Metallfußes mit der Tragschiene aufweist, wobei der Befestigungsbereich des zweiten Federelementes eine als abgewinkelten Hintergriff ausgebildete Rastfläche aufweist, welche in einem montierten Zustand des Metallfußes an der Tragschiene hintergreift, so dass das zweite Federelement des ersten Metallfußes mit seinem Befestigungsbereich an der Tragschiene verrastbar ist, und wobei das zweite Federelement des zweiten Metallfußes im Wesentlichen identisch zu dem zweiten Federelement des ersten Metallfußes ausgebildet ist und einen Befestigungsbereich mit einer als Hintergriff ausgebildeten Rastfläche aufweist, mittels welcher das zweite Federelement des zweiten Metallfußes an der Tragschiene durch ein Verrasten an der Tragschiene formschlüssig befestigbar ist, wobei das erste Federelement einen abgerundet ausgebildeten Anlagebereich zur Ausbildung einer kraftschlüssigen Verbindung des ersten Federelementes des ersten Metallfußes mit der Tragschiene aufweist. Das Schutzleiteranschlusselement zeichnet sich insbesondere dadurch aus, dass dieses zwei verschiedene Arten von Metallfüßen aufweist, wobei von den beiden Arten an Metallfüßen pro Schutzleiteranschlusselement ein oder mehrere Metallfüße vorgesehen sein können. Diese beiden Arten von Metallfüßen, wobei die erste Art von Metallfuß durch den ersten Metallfuß und die zweite Art von Metallfuß durch den zweiten Metallfuß ausgebildet ist, unterscheiden sich dadurch voneinander, dass nur einer der beiden Metallfüßen, und zwar der zweite Metallfuß, mit seinen beiden Federelementen im montierten Zustand an der Tragschiene durch eine formschlüssige Verbindung verrastet, wohingegen der anderen Metallfuß, und zwar der erste Metallfuß, nur mit einem seiner beiden Federelemente im montierten Zustand an der Tragschiene durch eine formschlüssige Verbindung verrastet und das andere der beiden Federelemente im montierten Zustand an der Tragschiene durch eine kraftschlüssige Verbindung lediglich anliegt und damit gerade nicht an der Tragschiene verrastet. Die Federelemente des ersten Metallfußes sind somit erfindungsgemäß derart ausgebildet, dass das erste Federelement einen Anlagebereich zum kraftschlüssigen Anliegen des ersten Federelementes an der Tragschiene und das zweite Federelement einen Befestigungsbereich, insbesondere Rastbereich, zum formschlüssigen Befestigen des zweiten Federelementes an der Tragschiene aufweist. Mit dem Anlagebereich des ersten Federelementes liegt der erste Metallfuß damit lediglich an der Tragschiene an und ist somit vorzugsweise nicht an der Tragschiene befestigt, wie beispielsweise durch ein Hinterhaken oder Verrasten an der Tragschiene. Beim Abrasten der Reihenklemme bzw. des Schutzleiteranschlusselementes von der Tragschiene muss somit im Bereich des ersten Federelementes des ersten Metallfußes keine Kraft aufgewendet werden, um das erste Federelement von der Tragschiene zu lösen. Die aufzubringende Abrastkraft für die gesamte Reihenklemme bzw. das gesamte Schutzleiteranschlusselement kann dadurch reduziert werden. Mit dem Befestigungsbereich des zweiten Federelementes hingegen ist der erste Metallfuß vorzugsweise durch ein Hinterhaken oder Verrasten an der Tragschiene an dieser formschlüssig befestigt. Bei dem zweiten Metallfuß weisen beide Federelemente jeweils einen Befestigungsbereich, insbesondere Rastbereich, auf, mit welchen der zweite Metallfuß im montierten Zustand an der Tragschiene formschlüssig befestigt ist. Vorzugsweise ist es derart vorgesehen, dass die zweiten Federelemente des ersten und des zweiten Metallfußes mit ihren Befestigungsbereichen ähnlich oder sogar identisch miteinander ausgebildet sind, wohingegen sich die ersten Federelemente des ersten und zweiten Metallfußes wesentlich voneinander unterscheiden, da nur das erste Federelement des zweiten Metallfußes an der Tragschiene formschlüssig befestigbar ist und das erste Federelement des ersten Metallfußes lediglich im montierten Zustand an der Tragschiene kraftschlüssig anliegt, jedoch nicht an dieser formschlüssig befestigt ist. Dadurch, dass das erste Federelement des ersten Metallfußes im montierten Zustand lediglich an der Tragschiene kraftschlüssig anliegt und nicht an dieser formschlüssig befestigt ist, können die notwendigen Kräfte zum Abrasten des Schutzleiteranschlusselementes bzw. der Reihenklemme von der Tragschiene wesentlich reduziert werden. Der Anlagebereich zur Ausbildung einer kraftschlüssigen Verbindung mit der Tragschiene kann beispielsweise durch eine abgerundet ausgebildete Fläche an dem ersten Federelement des ersten Metallfußes ausgebildet sein. Die Befestigungsbereiche zur Ausbildung einer formschlüssigen Verbindung mit der Tragschiene weisen hingegen vorzugsweise eine Rastfläche, beispielsweise eine Rastnase, auf, welche an der Tragschiene hinterhaken kann, um die formschlüssige Verbindung ausbilden zu können. Dadurch, dass der erste Metallfuß, auch wenn er mit einem der beiden Federelemente nicht an der Tragschiene verrastet ist, in einem montierten Zustand der Reihenklemme und damit des Schutzleiteranschlusselementes an der Tragschiene auf der Tragschiene aufliegt, bildet der eine oder die mehreren ersten Metallfüße eine elektrische Kontaktierung zwischen der Reihenklemme, insbesondere der Stromschiene der Reihenklemme, und der Tragschiene aus, so dass trotz einer Reduzierung der Abrastkräfte, aufgrund dessen dass für den oder die ersten Metallfüße die aufzubringende Abrastkraft durch die Ausbildung eines der beiden Federelemente mit einem Anlagebereich reduziert werden kann, die Qualität der elektrischen Kontaktierung nicht verringert wird und somit die Stromtragfähigkeit des Schutzleiteranschlusselementes nicht beeinflusst, insbesondere nicht reduziert, wird. Insbesondere bei großen Leiterquerschnitten kann somit mit dem Schutzleiteranschlusselement trotz einer Reduzierung der aufzubringenden Abrastkräfte eine gute Stromtragfähigkeit erreicht werden.
From the DE 103 24 144 B4 For example, a metallic protective conductor connection element for arrangement on a terminal block is known, which has a plurality of disk-shaped metal feet connected to one another. At least one latching lug for fixing the protective conductor connection element to at least one latching opening of a side wall of the terminal housing is formed on the metal feet. Furthermore, the metal feet each have two hook and spring means, by means of which the protective conductor connection element can be snapped onto a mounting rail by the protective conductor connection element is positively locked at all connection points with the support rail to the support rail. The hook and spring means are also designed such that all metal feet of a protective conductor connection element can get caught on a foot element of the terminal housing. A handling bag is formed on the foot element, into which an unlocking tool, for example a tip of a screwdriver, can be inserted in order to deflect the foot element and thus also the hook and spring means of the metal feet hooked in the foot element, that the entire terminal block can be removed from the mounting rail. The disadvantage here is that high forces must be applied by means of the unlocking tool for such a snapping the terminal, in particular the protective conductor connection element, of the support rail, whereby the handling is difficult for a user.
The invention is therefore based on the object to provide a metallic protective conductor connection element and an electrical terminal, in which the forces required for snapping the terminal or the metallic protective conductor connection element can be reduced by a mounting rail, without affecting the current carrying capacity.
This object is achieved with the features of the independent claims. Advantageous embodiments and advantageous developments of the invention are specified in the dependent claims.
According to the invention, provision is made for a metallic protective conductor connection element to have a metal base arrangement for arrangement on an electrical terminal having a terminal housing, which has at least one first metal base for resting on a mounting rail and at least one second metal foot for resting on the mounting rail, wherein the first metal base is a first metal foot Spring element and a second spring element with a mounting area for forming a positive connection of the second spring element of the first metal base with the support rail and wherein the second metal base a first spring element with a mounting portion for forming a positive connection of the first spring element of the second metal base with the support rail and a second spring element for forming a positive connection of the second spring element of the second metal base having the mounting rail, wherein the mounting portion of the second spring element has a trained as an angled rear handle detent surface which engages behind in an assembled state of the metal base on the mounting rail, so that the second spring element of the first metal base with its mounting portion on the mounting rail can be latched, and wherein the second spring element of the second metal base is formed substantially identical to the second spring element of the first metal base and a fastener Having a region formed with a detent surface designed as a rear handle, by means of which the second spring element of the second metal leg to the support rail by latching to the support rail is positively fastened, wherein the first spring element formed a rounded abutment area for forming a frictional connection of the first spring element of the first metal base having the support rail. The protective conductor connection element is characterized in particular in that it has two different types of metal feet, wherein one or more metal feet can be provided by the two types of metal feet per protective conductor connection element. These two types of metal feet, wherein the first type of metal base is formed by the first metal base and the second type of metal base by the second metal base, differ from each other in that only one of the two metal feet, the second metal base, with its both spring elements in the assembled state locked to the support rail by a positive connection, whereas the other metal base, namely the first metal base, locked only with one of its two spring elements in the mounted state on the mounting rail by a positive connection and the other of the two spring elements mounted in the Condition on the mounting rail by a non-positive connection only rests and thus not just locked to the support rail. The spring elements of the first metal base are thus inventively designed such that the first spring element has a contact region for the non-positive engagement of the first spring element on the mounting rail and the second spring element has a fastening region, in particular latching region, for the form-fitting fastening of the second spring element to the mounting rail. With the abutment region of the first spring element, the first metal base thus merely rests against the mounting rail and is thus preferably not fastened to the mounting rail, for example by means of a rear hook or latching on the mounting rail. When snapping the terminal block or the protective conductor connection element of the support rail thus no force must be applied in the region of the first spring element of the first metal base to release the first spring element of the mounting rail. The applied latching force for the entire terminal block or the entire protective conductor connection element can be reduced thereby. By contrast, with the fastening region of the second spring element, the first metal base is fastened in a form-fitting manner to the mounting rail by means of a rear hook or latching. In the case of the second metal base, both spring elements each have a fastening region, in particular a latching region, with which the second metal base is fastened in a form-fitting manner to the mounting rail in the mounted state. Preferably, it is provided such that the second spring elements of the first and second metal feet are formed with their attachment areas similar or even identical to each other, whereas the first spring elements of the first and second metal base substantially different from each other, since only the first spring element of the second metal foot on the support rail can be fastened in a form-fitting manner and the first spring element of the first metal leg bears against the support rail in a force-locked manner only in the assembled state, but is not fastened to it in a form-fitting manner. By doing that, the first one Spring element of the first metal base in the assembled state only frictionally rests on the mounting rail and is not attached to this form-fitting, the necessary forces for snapping the protective conductor terminal element or the terminal block of the mounting rail can be substantially reduced. The contact area for forming a non-positive connection with the mounting rail can be formed, for example, by a rounded surface formed on the first spring element of the first metal base. The attachment areas for forming a positive connection with the mounting rail, however, preferably have a latching surface, for example a latching lug, which can hook behind on the support rail to form the positive connection can. Due to the fact that the first metal base, even if it is not latched to the mounting rail with one of the two spring elements, rests against the mounting rail on the mounting rail in an assembled state of the terminal block and thus of the protective conductor connection element, the one or more first metal feet forms an electrical one Contacting between the terminal block, in particular the busbar of the terminal block, and the mounting rail, so that despite a reduction of the Abrastkräfte, due to that for the or the first metal feet the Abrastkraft applied can be reduced by the formation of one of the two spring elements with a contact area, the quality of the electrical contact is not reduced and thus the current carrying capacity of the protective conductor connection element is not affected, in particular not reduced, is. In particular with large conductor cross sections can thus with the protective conductor terminal element despite a reduction the applied Abrastkräfte good current carrying capacity can be achieved.

Nach einer bevorzugten Ausgestaltung ist es vorgesehen, dass der zweite Metallfuß ein Rastelement zum Verrasten an einem Fußelement des Klemmengehäuses aufweist, so dass in einem montierten Zustand des metallischen Schutzleiteranschlusselementes an der Reihenklemme ausschließlich der zweite Metallfuß der Metallfußanordnung in dem Fußelement des Klemmengehäuses verrastet ist. Bevorzugt ist es somit vorgesehen, dass nur eine Art der Metallfüße, und zwar der zweite Metallfuß, ein Rastelement aufweist, mit welchem dieser zweite Metallfuß in dem Fußelement des Klemmengehäuses verrastet werden kann. Die andere Art der Metallfüße, und zwar der erste Metallfuß weist hingegen vorzugsweise kein Rastelement auf und kann somit auch nicht in dem Fußelement des Klemmengehäuses verrastet werden. Beide Arten von Metallfüßen dienen zur elektrischen Kontaktierung der Reihenklemme mit der Tragschiene, jedoch dient vorzugsweise nur der zweite Metallfuß und damit nicht der erste Metallfuß zusätzlich zur sicheren Befestigung des Schutzleiteranschlusselementes an dem Fußelement des Klemmengehäuses der Reihenklemme. Das Schutzleiteranschlusselement ist somit bevorzugt aus einer Kombination von Metallfüßen mit und ohne Verratung an dem Fußelement des Klemmengehäuses ausgebildet. Bei einem Abrasten des Schutzleiteranschlusselementes bzw. der Reihenklemme von der Tragschiene müssen dadurch auch nur die ein oder mehreren zweiten Metallfüße der Metallfußanordnung, welche ein entsprechendes Rastelement zum Verrasten an dem Fußelement des Klemmengehäuses aufweisen, ausgelenkt werden, so dass die aufzubringende Kraft zum Abrasten alleine durch die zweiten Metallfüße der Metallfußanordnung bestimmt ist, so dass die insgesamt aufzubringende Kraft zum Abrasten auch bei einer größeren Anzahl von Metallfüßen, insbesondere einer größeren Anzahl von ersten Metallfüßen, in einer Metallfußanordnung reduziert werden kann. Die notwendige Kraft zum Abrasten kann dabei derart reduziert werden, dass trotz der Reduzierung noch eine ausreichend hohe Kontaktkraft zur Tragschiene ausgebildet ist und insbesondere bei einem Abrastvorgang das Rastelement als Bindeglied zwischen einem Entriegelungswerkzeug, wie beispielsweise einem Schraubendreher, und des Schutzleiteranschlusselementes nicht zerstört wird. Das Rastelement kann beispielsweise in Form eines Hakens ausgebildet sein.According to a preferred embodiment, it is provided that the second metal base has a latching element for latching to a foot member of the terminal housing, so that is locked in an assembled state of the metallic protective conductor connection element to the terminal only the second metal base of the Metallfußanordnung in the base member of the terminal housing. Preferably, it is thus provided that only one type of metal feet, namely the second metal base, has a latching element with which this second metal base can be latched in the base element of the terminal housing. The other type of metal feet, namely the first metal foot, however, preferably has no latching element and thus can not be locked in the foot member of the terminal housing. Both types of metal feet are used for electrical contacting of the terminal block with the mounting rail, but preferably only the second metal base and thus not the first metal foot is used in addition to the secure attachment of the protective conductor connection element to the foot member of the terminal housing of the terminal. The protective conductor connection element is thus preferably formed from a combination of metal feet with and without treading on the foot element of the terminal housing. In a snapping off of the protective conductor connection element or the terminal block of the mounting rail thereby only the one or more second metal feet of Metallfußanordnung, which have a corresponding locking element for locking to the foot member of the terminal housing must be deflected so that the applied force for snapping alone by the second metal feet of the Metal foot assembly is determined so that the total applied force for snapping can be reduced even in a larger number of metal feet, in particular a larger number of first metal feet, in a Metallfußanordnung. The necessary force for latching can be reduced in such a way that despite the reduction still a sufficiently high contact force is formed to the support rail and in particular during a Abrastvorgang the locking element as a link between an unlocking tool, such as a screwdriver, and the protective conductor terminal element is not destroyed. The locking element may be formed, for example in the form of a hook.

Die Metallfußanordnung kann ein oder mehrere erste Metallfüße und ein oder mehrere zweite Metallfüße aufweisen. Bevorzugt ist es vorgesehen, dass die Metallfußanordnung zwei zweite Metallfüße und mindestens einen ersten Metallfuß aufweist, wobei der mindestens eine erste Metallfuß bevorzugt zwischen den zwei zweiten Metallfüßen angeordnet ist. Die jeweils ein Rastelement aufweisenden zweiten Metallfüße sind somit bevorzugt an den Außenseiten einer Metallfußanordnung angeordnet, wobei die ersten Metallfüße, welche kein Rastelement aufweisen, bevorzugt in einem Innenbereich der Metallfußanordnung angeordnet sind. Hierdurch kann ein ungewolltes Lösen des ersten Metallfußes aus der Metallfußanordnung verhindert werden, da der erste Metallfuß, der im montierten Zustand nicht in dem Fußelement des Klemmengehäuses verrastet, sicher zwischen zwei zweiten Metallfüßen mit Verrastung eingeklemmt gehalten ist.The metal base assembly may include one or more first metal feet and one or more second metal feet. It is preferably provided that the Metallfußanordnung two second metal feet and at least one first metal base, wherein the at least one first metal base is preferably arranged between the two second metal feet. The respective second metal feet each having a latching element are thus preferably arranged on the outer sides of a metal base arrangement, wherein the first metal feet, which have no latching element, are preferably arranged in an inner region of the metal base arrangement. In this way, an unintentional release of the first metal base from the metal base assembly can be prevented, since the first metal base, which does not latch in the mounted state in the base element of the terminal housing, is securely clamped between two second metal feet with latching.

Es sind aber auch andere Reihenfolgen an Anordnungen der Metallfüße bei einer Metallfußanordnung denkbar, beispielsweise, dass auch ein oder mehrere zweite Metallfüße zwischen zwei oder mehreren zweiten Metallfüßen angeordnet sind.However, other sequences of arrangements of the metal feet in a metal base arrangement are also conceivable, for example, that one or more second metal feet are also arranged between two or more second metal feet.

Um die Montage des Schutzleiteranschlusselementes zu erleichtern, ist es vorzugsweise vorgesehen, dass der erste Metallfuß und der zweite Metallfuß mindestens eine Montagekodierung aufweisen. Die Montagekodierung ermöglicht, dass die Metallfüße ohne großen Aufwand in einer Montagevorrichtung gehandhabt werden können. Insbesondere kann dadurch eine gezielte Steuerung der Reihenfolge der ersten und zweiten Metallfüße zur Ausbildung der Metallfußanordnung ermöglicht werden. Ferner ist es mit einer derartigen Montagekodierung auch möglich zu erreichen, dass die in der Metallfußanordnung angeordneten Metallfüße gezielt in Abhängigkeit der Ausbildung der in der Reihenklemme eingesetzten Stromschiene ausgewählt sind. Die Montagekodierung ermöglicht somit eine Reduzierung der Verwechslungsgefahr der anzuordnenden bzw. zu verwendenden Metallfüße innerhalb einer Metallfußanordnung.In order to facilitate the mounting of the protective conductor connection element, it is preferably provided that the first metal base and the second metal base have at least one mounting coding. The mounting coding allows the metal feet to be handled easily in a fixture. In particular, this can be a targeted control of the order of the first and second metal feet to form the Metallfußanordnung be made possible. Furthermore, it is also possible with such an assembly coding to achieve that the metal feet arranged in the metal base arrangement are specifically selected as a function of the design of the busbar inserted in the terminal block. The assembly coding thus makes it possible to reduce the risk of confusion of the metal feet to be arranged or used within a metal base arrangement.

Die Montagekodierung kann an einer Außenumfangsfläche des ersten Metallfußes und/oder an einer Außenumfangsfläche des zweiten Metallfußes ausgebildet sein. Durch die Ausbildung der Montagekodierung an einer Außenumfangsfläche der Metallfüße kann die Handhabung der Montagekodierung und damit der Metallfüße in einer Montagevorrichtung erleichtert werden, wobei dadurch insbesondere ein Einlegen der Metallfüße in die Montagevorrichtung in Abhängigkeit der Montagekodierung erleichtert werden kann. Es ist aber auch möglich, dass die Montagekodierung innenliegend an dem ersten Metallfuß und/oder dem zweiten Metallfuß ausgebildet ist.The mounting coding may be formed on an outer peripheral surface of the first metal base and / or on an outer peripheral surface of the second metal foot. By forming the mounting code on an outer peripheral surface of the metal feet, the handling of the mounting coding and thus the metal feet can be facilitated in a mounting device, whereby in particular an insertion of the metal feet can be facilitated in the mounting device in dependence on the mounting coding. But it is also possible that the mounting coding is formed on the inside of the first metal base and / or the second metal base.

Vorzugsweise ist es vorgesehen, dass eine erste Montagekodierung an einer in einem montierten Zustand des metallischen Schutzleiteranschlusselementes an der Tragschiene in Richtung Tragschiene zeigenden Unterseite des ersten Metallfußes und/oder an einer in einem montierten Zustand des metallischen Schutzleiteranschlusselementes an der Tragschiene in Richtung Tragschiene zeigenden Unterseite des zweiten Metallfußes ausgebildet ist. Ist eine Montagekodierung an einer Unterseite eines Metallfußes ausgebildet, kann diese mit einer Gegenkodierung, die an dem Klemmengehäuse der Reihenklemme ausgebildet ist, zusammenwirken, wodurch sichergestellt werden kann, dass die Metallfüße in der gewünschten Kombination zu einer Metallfußanordnung zusammengefügt, insbesondere geblockt, werden.Preferably, it is provided that a first mounting coding on a in a mounted state of the metallic protective conductor connection element on the mounting rail in the direction of mounting rail facing underside of the first metal base and / or on a mounted in a mounted state of the metallic protective conductor connection element on the mounting rail in the direction of mounting rail underside of the second metal base is formed. If a mounting coding is formed on a lower side of a metal base, this can cooperate with a counter-coding formed on the terminal housing of the terminal block, whereby it can be ensured that the metal feet are combined in the desired combination into a metal base arrangement, in particular blocked.

Diese erste Montagekodierung kann beispielsweise in Form einer Ausnehmung ausgebildet sein. In eine als Ausnehmung ausgebildete erste Montagekodierung kann eine an dem Klemmengehäuse ausgebildete Gegenkodierung einhaken. Die als Ausnehmung ausgebildete erste Montagekodierung kann je nach Bedarf ausgehend von einer gemeinsamen Grundausgestaltung in ihrer Form bzw. Kontur beliebig erweitert sein. Die Ausnehmung kann in ihrer Grundausgestaltung beispielsweise U- oder V-förmig ausgebildet sein.This first mounting coding can be formed for example in the form of a recess. A counter-coding formed on the terminal housing can hook into a first mounting coding designed as a recess. Trained as a recess first mounting coding can be extended as desired, starting from a common basic design in shape or contour as desired. The recess may be formed in its basic configuration, for example U- or V-shaped.

Eine zweite Montagekodierung kann beispielsweise an dem Rastelement des ersten Federelementes des zweiten Metallfußes ausgebildet sein. Durch die Ausbildung dieser zweiten Montagekodierung an dem Rastelement des ersten Federelementes des zweiten Metallfußes kann diese mit einer in dem Fußelement des Klemmengehäuses der Reihenklemme ausgebildeten Gegenkodierung zusammenwirken.A second mounting coding, for example, on the locking element of the first spring element of the second Metal foot be formed. By forming this second mounting coding on the latching element of the first spring element of the second metal base, it can cooperate with a counter-coding formed in the base element of the terminal housing of the terminal block.

Die zweite Montagekodierung kann beispielsweise in Form eines Hakens ausgebildet sein, welche dann beispielsweise in eine als Ausnehmung ausgebildete Gegenkodierung an dem Fußelement des Klemmengehäuses einhaken kann. Die als Ausnehmung ausgebildete Gegenkodierung kann beispielsweise ein Aufnahmeraum in dem Fußelement des Klemmengehäuses sein, in welcher auch das Rastelement des zweiten Metallfußes einhaken kann.The second mounting coding can be designed, for example, in the form of a hook, which can then, for example, hook into a counter-coding formed as a recess on the base element of the terminal housing. The counter-coding formed as a recess can be, for example, a receiving space in the foot element of the terminal housing, in which the catch element of the second metal foot can also hook.

Zum Befestigen der Metallfußanordnung an einer in dem Klemmengehäuse angeordneten Stromschiene können der erste Metallfuß und/oder der zweite Metallfuß mindestens ein Befestigungsmittel aufweisen. Die Befestigungsmittel sind bevorzugt an die Dicke der Stromschiene angepasst, wobei die Anpassung beispielsweise durch eine gezielte Auswahl der Länge der Befestigungsmittel erfolgen kann. Beispielsweise können die Befestigungsmittel als Zapfen, die an der Stromschiene vernietet werden können, oder als Rastnasen, die in Öffnungen an der Stromschiene einrasten können, ausgebildet sein. Die Befestigungsmittel sind vorzugsweise einstückig mit dem jeweiligen Metallfuß ausgebildet.For fastening the metal base arrangement to a busbar arranged in the terminal housing, the first metal base and / or the second metal foot may have at least one fastening means. The fastening means are preferably adapted to the thickness of the busbar, the adjustment can be made for example by a targeted selection of the length of the fastening means. For example, the fastening means may be designed as pins that can be riveted to the busbar, or as locking lugs that can engage in openings on the busbar. The fastening means are preferably formed integrally with the respective metal base.

Die Lösung der erfindungsgemäßen Aufgabe erfolgt ferner mit einer elektrischen Reihenklemme, insbesondere einer Schutzleiterklemme, zum Aufsetzen auf eine Tragschiene, welche ein aus Isolierstoff ausgebildetes Klemmengehäuse, mindestens zwei Leiteranschlusselemente, mindestens eine die Leiteranschlusselemente elektrisch verbindende, in dem Klemmengehäuse angeordnete Stromschiene und ein wie vorstehend aus- und weitergebildetes, einer elektrisch leitenden Verbindung zwischen der Stromschiene und der Tragschiene dienendes metallisches Schutzleiteranschlusselement aufweist.The object of the invention is further achieved with an electrical terminal, in particular a protective conductor terminal, for placing on a mounting rail, which is a terminal housing formed of insulating material, Having at least two conductor connection elements, at least one of the conductor connection elements electrically connecting, arranged in the terminal housing busbar and as educated above and further educated, an electrically conductive connection between the busbar and the support rail serving metallic protective conductor terminal element.

Nachfolgend wird die Erfindung unter Bezugnahme auf die anliegenden Zeichnungen anhand bevorzugter Ausführungsformen näher erläutert.The invention will be explained in more detail with reference to the accompanying drawings with reference to preferred embodiments.

Es zeigen

Fig. 1
eine schematische Darstellung eines ersten Metallfußes einer Metallfußanordnung eines metallischen Schutzleiteranschlusselementes gemäß der Erfindung,
Fig. 2
eine schematische Darstellung eines zweiten Metallfußes einer Metallfußanordnung eines metallischen Schutzleiteranschlusselementes gemäß der Erfindung,
Fig. 3
eine schematische Darstellung einer Metallfußanordnung gemäß einer Ausführungsform der Erfindung,
Fig. 4
eine schematische Darstellung einer Metallfußanordnung gemäß einer weiteren Ausführungsform der Erfindung,
Fig. 5
eine schematische Darstellung einer Anordnung der in Fig. 3 gezeigten Metallfußanordnung an einer Stromschiene,
Fig. 6
eine schematische Darstellung einer Reihenklemme gemäß der Erfindung mit einer wie in Fig. 5 gezeigten Anordnung aufgerastet auf einer Tragschiene in einer ersten Ansicht, und
Fig. 7
eine schematische Darstellung der in Fig. 6 gezeigten Reihenklemme in einer weiteren Ansicht.
Show it
Fig. 1
a schematic representation of a first metal base of a Metallfußanordnung a metallic protective conductor connection element according to the invention,
Fig. 2
a schematic representation of a second metal base of a Metallfußanordnung a metallic protective conductor connection element according to the invention,
Fig. 3
a schematic representation of a Metallfußanordnung according to an embodiment of the invention,
Fig. 4
a schematic representation of a Metallfußanordnung according to another embodiment of the invention,
Fig. 5
a schematic representation of an arrangement of in Fig. 3 shown Metallfußanordnung on a power rail,
Fig. 6
a schematic representation of a terminal block according to the invention with a as in Fig. 5 shown arrangement latched onto a mounting rail in a first view, and
Fig. 7
a schematic representation of in Fig. 6 shown terminal block in another view.

In Fig. 1 ist ein erster Metallfuß 10 gezeigt, welcher scheibenförmig ausgebildet ist und ein erstes Federelement 11a und ein zweites Federelement 11b aufweist, welche an zwei sich gegenüberliegenden Enden des Metallfußes 10 ausgebildet sind. Die Federelemente 11a, 11b sind gebogen, im Wesentlichen C-förmig gebogen, ausgebildet. Das erste Federelement 11a weist einen, in Richtung zweites Federelement 11b zeigenden Anlagebereich 12 zum kraftschlüssigen Anliegen an einer wie in Fig. 6 und 7 gezeigten Tragschiene 60 auf. Das zweite Federelement 11b weist einen, in Richtung erstes Federelement 11a zeigenden Befestigungsbereich 13 zum formschlüssigen Befestigen des zweiten Federelementes 11b an der Tragschiene 60 auf.In Fig. 1 a first metal leg 10 is shown, which is disc-shaped and has a first spring element 11a and a second spring element 11b, which are formed at two opposite ends of the metal base 10. The spring elements 11a, 11b are bent, bent substantially C-shaped. The first spring element 11a has a contact region 12, which points in the direction of the second spring element 11b, for frictional engagement with a contact element as in FIG Fig. 6 and 7 shown support rail 60. The second spring element 11b has a fastening region 13 pointing in the direction of the first spring element 11a for the positive fastening of the second spring element 11b to the mounting rail 60.

Der Anlagebereich 12 des ersten Federelementes 11a liegt in einem montierten Zustand des Metallfußes 10 an der Tragschiene 60, wie dies in Fig. 6 und 7 gezeigt ist, lediglich kraftschlüssig an der Tragschiene 60 an, so dass mittels des Anlagebereiches 12 keine Befestigung, insbesondere keine Verrastung, des ersten Federelementes 11a des Metallfußes 10 an der Tragschiene 60 ausgebildet ist. Das erste Federelement 11a ist somit in dem an der Tragschiene 60 montierten Zustand nicht an der Tragschiene 60 verrastet und hintergreift damit auch die Tragschiene 60 nicht. Um eine gute Anlagefläche auszubilden, ist der Anlagebereich 12 des ersten Federelementes 11a bei der hier gezeigten Ausführung abgerundet ausgebildet.The abutment region 12 of the first spring element 11a lies in a mounted state of the metal base 10 on the mounting rail 60, as shown in FIG Fig. 6 and 7 is shown, only non-positively on the support rail 60, so that by means of the contact area 12 no attachment, in particular no latching, the first spring element 11a of the metal base 10 formed on the support rail 60 is. The first spring element 11a is thus not latched in the mounted on the support rail 60 state on the support rail 60 and thus does not engage behind the support rail 60. In order to form a good contact surface, the abutment region 12 of the first spring element 11a is rounded in the embodiment shown here.

Der Befestigungsbereich 13 des zweiten Federelementes 11b weist eine als abgewinkelten Hintergriff 14 ausgebildete Rastfläche bzw. Rastnase auf, welche in einem montierten Zustand des Metallfußes 10 an der Tragschiene 60 die Tragschiene 60 hinter- bzw. untergreift, so dass das zweite Federelement 11b des ersten Metallfußes 10 mit seinem Befestigungsbereich 13 an der Tragschiene 60 verrasten kann.The attachment region 13 of the second spring element 11b has a latching surface or latching lug designed as an angled rear grip 14, which in a mounted state of the metal base 10 on the support rail 60 engages behind or under the support rail 60 so that the second spring element 11b of the first metal base 10 can lock with its mounting portion 13 on the support rail 60.

Zwischen den beiden Federelementen 11a, 11b sind ferner zwei elastisch ausgebildete Stützbeine 15a, 15b ausgebildet, welche in einem montierten Zustand des ersten Metallfußes 10 auf der Tragschiene 60 auf der Tragschiene 60 aufliegen.Between the two spring elements 11a, 11b are further formed two elastically formed support legs 15a, 15b, which rest in an assembled state of the first metal leg 10 on the support rail 60 on the support rail 60.

An der Außenumfangsfläche des ersten Metallfußes 10, im Bereich zwischen den beiden Stützbeinen 15a, 15b ist ferner eine in Form einer U-förmig ausgebildeten Aussparung vorgesehene erste Montagekodierung 16a ausgebildet. Die erste Montagekodierung 16a ist an einer im montierten Zustand in Richtung Tragschiene 60 zeigenden Unterseite 17 des ersten Metallfußes 10 ausgebildet.On the outer peripheral surface of the first metal leg 10, in the region between the two support legs 15a, 15b, a first mounting coding 16a provided in the form of a U-shaped recess is furthermore formed. The first mounting coding 16a is formed on a underside 17 of the first metal base 10 which points in the mounted state in the direction of the mounting rail 60.

Um den ersten Metallfuß 10 an einer Stromschiene 40, wie sie beispielsweise in Fig. 5 gezeigt ist, zu montieren, weist der erste Metallfuß 10 ferner zwei nebeneinander angeordnete Befestigungsmittel 18 auf, welche jeweils in Form eines Zapfens ausgebildet sind. Die Befestigungsmittel 18 sind gegenüberliegend zu der ersten Montagekodierung 16a an der Außenumfangsfläche des ersten Metallfußes 10 einstückig angeformt.To the first metal leg 10 on a busbar 40, as for example in Fig. 5 is shown to mount, the first metal foot 10 further comprises two adjacent to each other arranged fastening means 18, which are each formed in the form of a pin. The fastening means 18 are integrally formed opposite to the first mounting coding 16 a on the outer peripheral surface of the first metal base 10.

In Fig. 2 ist ein zweiter, scheibenförmig ausgebildeter Metallfuß 20 gezeigt, welcher ebenfalls ein erstes Federelement 21a und ein zweites Federelement 21b aufweist, welche an sich gegenüberliegenden Enden des zweiten Metallfußes 20 ausgebildet sind. Ebenso wie die beiden Federelemente 11a, 11b des ersten Metallfußes 10 sind die Federelemente 21a, 21b des zweiten Metallfußes 20 gebogen, insbesondere C-förmig gebogen, ausgebildet.In Fig. 2 a second disc-shaped metal base 20 is shown, which likewise has a first spring element 21a and a second spring element 21b, which are formed at opposite ends of the second metal leg 20. As well as the two spring elements 11a, 11b of the first metal base 10, the spring elements 21a, 21b of the second metal leg 20 are bent, in particular C-shaped bent formed.

Das erste Federelement 21a des zweiten Metallfußes 20 unterscheidet sich jedoch dadurch von dem ersten Federelement 11a des ersten Metallfußes 10, dass das erste Federelement 21a des zweiten Metallfußes 20 einen Befestigungsbereich 22 aufweist, mit welchem das erste Federelement 21a des zweiten Metallfußes 20 in einem montierten Zustand des zweiten Metallfußes 20 an der Tragschiene 60 formschlüssig an der Tragschiene 60 verrasten bzw. die Tragschiene 60 hinter- bzw. untergreifen kann. Im Gegensatz zu dem ersten Metallfuß 10 liegt somit bei dem zweiten Metallfuß 20 in dem an der Tragschiene 60 montierten Zustand das erste Federelement 21a nicht nur an der Tragschiene 60 an, sondern ist an dieser auch beispielsweise durch eine Verrastung formschlüssig befestigt. Der Befestigungsbereich 22 des ersten Federelementes 21a des zweiten Metallfußes 20 weist hierfür eine Rastfläche, insbesondere eine Rastnase, auf, welche im montierten Zustand die Tragschiene hinter- bzw. untergreifen kann.However, the first spring element 21a of the second metal leg 20 differs from the first spring element 11a of the first metal leg 10 in that the first spring element 21a of the second metal leg 20 has a fastening region 22 with which the first spring element 21a of the second metal leg 20 is in an assembled state the second metal leg 20 on the support rail 60 positively engage the support rail 60 and the support rail 60 can engage behind or under. In contrast to the first metal base 10, the first spring element 21a thus not only rests against the mounting rail 60 in the second metal base 20 in the state mounted on the mounting rail 60, but is also fastened to it in a form-fitting manner, for example by latching. The attachment region 22 of the first spring element 21a of the second metal base 20 has for this purpose a latching surface, in particular a latching lug, which, in the mounted state the support rail can engage behind or under.

Ferner ist im Gegensatz zu dem ersten Federelement 11a des ersten Metallfußes 10 an dem ersten Federelement 21a des zweiten Metallfußes 20 ein Rastelement 29 angeformt, welches in Verlängerung des ersten Federelementes 21a des zweiten Metallfußes 20 ausgebildet ist. Das Rastelement 29 ist hakenförmig ausgebildet und kann in einem an einem Klemmengehäuse 52 einer Reihenklemme 50 montierten Zustand in einem Fußelement 51 der Reihenklemme 50, wie es in Fig. 6 und 7 gezeigt ist, verrasten.Further, in contrast to the first spring element 11a of the first metal leg 10 on the first spring element 21a of the second metal leg 20, a latching element 29 is formed, which is formed in extension of the first spring element 21a of the second metal leg 20. The latching element 29 is hook-shaped and can be mounted in a mounted on a terminal housing 52 of a terminal 50 state in a base member 51 of the terminal block 50, as shown in FIG Fig. 6 and 7 is shown, lock.

Das zweite Federelement 21b des zweiten Metallfußes 20 ist im Wesentlichen identisch zu dem zweiten Federelement 11b des ersten Metallfußes 10 ausgebildet und weist einen Befestigungsbereich 23 mit einer als Hintergiff 24 ausgebildeten Rastfläche bzw. Rastnase auf, mittels welcher das zweite Federelement 21b des zweiten Metallfußes 20 an der Tragschiene 60 durch ein Verrasten bzw. Unter- oder Hintergreifen der Tragschiene 60 formschlüssig befestigt werden kann.The second spring element 21b of the second metal leg 20 is formed substantially identically to the second spring element 11b of the first metal leg 10 and has a fastening region 23 with a latching surface or latching lug formed as a rear grip 24, by means of which the second spring element 21b of the second metal base 20 the support rail 60 can be positively secured by latching or under or behind the support rail 60.

Zwischen den beiden Federelementen 21a, 21b des zweiten Metallfußes 20 sind ferner, ebenso wie bei dem ersten Metallfuß 10, zwei elastisch ausgebildete Stützbeine 25a, 25b ausgebildet, welche in einem montierten Zustand des zweiten Metallfußes 20 auf der Tragschiene 60 auf der Tragschiene 60 aufliegen.Between the two spring elements 21a, 21b of the second metal base 20, as well as the first metal leg 10, two elastically formed support legs 25a, 25b are formed, which rest in a mounted state of the second metal leg 20 on the support rail 60 on the support rail 60.

An der Außenumfangsfläche des zweiten Metallfußes 20, im Bereich zwischen den beiden Stützbeinen 25a, 25b ist weiter eine in Form einer U-förmig ausgebildeten Aussparung vorgesehene erste Montagekodierung 26a ausgebildet. Die erste Montagekodierung 26a ist an einer im montierten Zustand in Richtung Tragschiene 60 zeigenden Unterseite 27 des zweiten Metallfußes 20 ausgebildet. Die in Fig. 2 gezeigte erste Montagekodierung 26a des zweiten Metallfußes 20 ist in ihrer Kontur gegenüber der in Fig. 1 gezeigten ersten Montagekodierung 16a des ersten Metallfußes 10 leicht verändert, so dass eine Montagevorrichtung anhand dieser ersten Montagekodierung 16a, 26a des ersten Metallfußes 10 und des zweiten Metallfußes 20 diese beiden voneinander unterscheiden kann, so dass diese automatisiert von einer Montagevorrichtung in der gewünschten Reihenfolge in einer Metallfußanordnung 30, wie sie beispielsweise in Fig. 3 und 4 gezeigt ist, angeordnet werden können.On the outer peripheral surface of the second metal base 20, in the region between the two support legs 25a, 25b is further formed in the form of a U-shaped recess provided first mounting coding 26a formed. The first mounting coding 26a is formed on an underside 27 of the second metal base 20 pointing in the direction of the mounting rail 60 in the mounted state. In the Fig. 2 shown first mounting coding 26a of the second metal base 20 is in its contour with respect to in Fig. 1 slightly different so that a mounting device based on this first mounting coding 16a, 26a of the first metal leg 10 and the second metal leg 20 can distinguish these two from each other, so that these automated by a mounting device in the desired order in a Metallfußanordnung 30, as shown for example in 3 and 4 is shown can be arranged.

Zusätzlich zu der ersten Montagekodierung 26a weist der zweite Metallfuß 20 im Gegensatz zu dem ersten Metallfuß 10 eine zweite Montagekodierung 26b auf, wobei die zweite Montagekodierung 26b hakenförmig ausgebildet ist und an dem Rastelement 29 derart angeformt ist, dass die zweite Montagekodierung 26b zusammen mit dem Rastelement 29 im Wesentlichen eine T-Form ausbilden.In addition to the first mounting coding 26a, the second metal leg 20, in contrast to the first metal leg 10 has a second mounting coding 26b, wherein the second mounting code 26b is hook-shaped and formed on the locking element 29 such that the second mounting code 26b together with the locking element 29 form a substantially T-shape.

Zum Befestigen des zweiten Metallfußes 20 an einer Stromschiene 40 weist der zweite Metallfuß 20, ebenso wie der erste Metallfuß 10, zwei nebeneinander angeordnete, zapfenförmig ausgebildete Befestigungsmittel 28 auf.For fixing the second metal leg 20 to a busbar 40, the second metal leg 20, as well as the first metal leg 10, has two adjacently arranged peg-shaped fastening means 28.

In Fig. 3 ist eine mögliche Ausgestaltung einer Metallfußanordnung 30 gezeigt, wobei die in Fig. 3 gezeigte Metallfußanordnung 30 einen ersten Metallfuß 10, wie er in Fig. 1 dargestellt ist, und zwei zweite Metallfüße 20, wie sie in Fig. 2 dargestellt sind, aufweist. Der erste Metallfuß 10 ist dabei zwischen den beiden zweiten Metallfüßen 20 angeordnet.In Fig. 3 a possible embodiment of a Metallfußanordnung 30 is shown, wherein the in Fig. 3 shown Metallfußanordnung 30 a first metal base 10, as shown in Fig. 1 and two second metal feet 20 as shown in FIG Fig. 2 are shown. The first Metal base 10 is arranged between the two second metal feet 20.

In Fig. 4 ist eine weitere mögliche Ausgestaltung einer Metallfußanordnung 30 gezeigt, wobei die in Fig. 4 gezeigte Metallfußanordnung 30 drei erste Metallfüße 10, wie sie in Fig. 1 dargestellt sind, und zwei zweite Metallfüße 20, wie sie in Fig. 2 dargestellt sind, aufweist. Die drei ersten Metallfüße 10 sind dabei zwischen den beiden zweiten Metallfüßen 20 angeordnet.In Fig. 4 another possible embodiment of a Metallfußanordnung 30 is shown, wherein the in Fig. 4 shown metal feet assembly 30 three first metal feet 10, as shown in Fig. 1 and two second metal feet 20 as shown in FIG Fig. 2 are shown. The three first metal feet 10 are arranged between the two second metal feet 20.

Fig. 5 zeigt eine Anordnung, bei welcher die in Fig. 3 gezeigte Metallfußanordnung 30 an einer Stromschiene 40 befestigt ist. die Stromschiene 40 weist dafür zwei länglich geformte, parallel zueinander angeordnete Öffnungen 41 auf, durch welche die Befestigungsmittel 18, 28 der Metallfüße 10, 20 hindurchgeführt sind und an der Stromschiene 40 vernietet sind. Fig. 5 shows an arrangement in which the in Fig. 3 shown Metallfußanordnung 30 is attached to a bus bar 40. the busbar 40 has for this purpose two elongated, mutually parallel openings 41, through which the fastening means 18, 28 of the metal feet 10, 20 are passed and are riveted to the busbar 40.

Fig. 6 und 7 zeigen eine Reihenklemme 50, die ein Schutzleiteranschlusselement mit einer wie in Fig. 3 gezeigten Metallfußanordnung 30 aufweist, über welches die Reihenklemme 50 auf der Tragschiene 60 aufgerastet ist, so dass in Fig. 6 und 7 ein montierter Zustand eines Schutzleiteranschlusselementes an einer Tragschiene 60 und ein montierter Zustand eines Schutzleiteranschlusselementes in einer Reihenklemme 50 gezeigt ist. Fig. 6 and 7 show a terminal block 50, which is a protective conductor terminal element with a as in Fig. 3 shown Metallfußanordnung 30, via which the terminal block 50 is snapped onto the support rail 60, so that in Fig. 6 and 7 a mounted state of a protective conductor connection element on a mounting rail 60 and a mounted state of a protective conductor connection element in a terminal block 50 is shown.

Die Reihenklemme 50, auch Schutzleiterklemme genannt, weist ein aus Isolierstoff ausgebildetes Klemmengehäuse 52, zwei Leiteranschlusselemente 53 und eine die Leiteranschlusselemente 53 elektrisch verbindende Stromschiene 40 auf. Das Klemmengehäuse 52 weist ein Fußelement 51 auf, wobei innerhalb des Fußelementes 51 ein Aufnahmeraum 54 ausgebildet ist, in welchem im montierten Zustand, wie er in Fig. 6 und 7 gezeigt ist, das Rastelement 29 und auch die an dem Rastelement 29 ausgebildete zweite Montagekodierung 26b des zweiten Metallfußes 20 aufgenommen sind. An einer Außenseite des Fußelementes 51 ist eine Handhabungstasche 55 ausgebildet, in die ein Entriegelungswerkzeug 70, beispielsweise eine Spitze eines Schraubendrehers, wie dies in Fig. 7 gezeigt ist, eingesteckt werden kann, um das Fußelement 51 und damit auch den mit dem Rastelement 29 und der zweiten Montagekodierung 26b in dem Aufnahmeraum 54 des Fußelementes 51 verhakten zweiten Metallfuß 20 der Metallfußanordnung 30 derart auszulenken, dass die gesamte Reihenklemme 50 von der Tragschiene 60 abgenommen werden kann. Dadurch, dass von der Metallfußanordnung 30 lediglich der eine oder die mehreren zweiten Metallfüße 20 und nicht der eine oder die mehreren ersten Metallfüße 10 im montierten Zustand in dem Fußelement 51 verrastet sind, muss auch nur für die zweiten Metallfüße 20 der Metallfußanordnung 30 und damit nicht für die ersten Metallfüße 10 der Metallfußanordnung 30 über das Entriegelungswerkzeug 70 und die Handhabungstasche 55 eine Kraft zum Abrasten aufgebracht werden.Terminal block 50, also referred to as a protective conductor terminal, has a terminal housing 52 formed from insulating material, two conductor connection elements 53 and a conductor rail 40 electrically connecting the conductor connection elements 53. The terminal housing 52 has a Foot member 51, wherein within the foot member 51, a receiving space 54 is formed, in which in the assembled state, as in Fig. 6 and 7 is shown, the locking element 29 and also formed on the locking element 29 second mounting coding 26b of the second metal base 20 are added. On an outer side of the foot member 51, a handling pocket 55 is formed, into which an unlocking tool 70, for example, a tip of a screwdriver, as shown in FIG Fig. 7 is shown, can be inserted to deflect the foot member 51 and thus also with the locking element 29 and the second mounting code 26b in the receiving space 54 of the foot member 51 entangled second metal leg 20 of the Metallfußanordnung 30 such that the entire terminal block 50 of the support rail 60th can be removed. Due to the fact that only one or more second metal feet 20 and not one or more first metal feet 10 are latched in the base member 51 of the metal base assembly 30, it is necessary for the second metal feet 20 of the metal base assembly 30 and not for the first metal feet 10 of the Metallfußanordnung 30 via the unlocking tool 70 and the handling pocket 55 a force to be applied for locking.

Wie in Fig. 6 und 7 weiter gezeigt ist, ist die erste Montagekodierung 16a, 26a des ersten und zweiten Metallfußes 10, 20 der Metallfußanordnung 30 in eine an dem Klemmengehäuse 52 der Reihenklemme 50 ausgebildeten Gegenkodierung 56 eingehakt. Bezugszeichenliste Erster Metallfuß 10 Erstes Federelement des ersten Metallfußes 11a Zweites Federelement des ersten Metallfußes 11b Anlagebereich 12 Befestigungsbereich 13 Hintergriff 14 Stützbein 15a, 15b Erste Montagekodierung des ersten Metallfußes 16a Unterseite 17 Befestigungsmittel 18 Zweiter Metallfuß 20 Erstes Federelement des zweiten Metallfußes 21a Zweites Federelement des zweiten Metallfußes 21b Befestigungsbereich 22 Befestigungsbereich 23 Hintergriff 24 Stützbein 25a, 25b Erste Montagekodierung des zweiten Metallfußes 26a Zweite Montagekodierung des zweiten Metallfußes 26b Unterseite 27 Befestigungsmittel 28 Rastelement 29 Metallfußanordnung 30 Stromschiene 40 Öffnung 41 Reihenklemme 50 Fußelement 51 Klemmengehäuse 52 Leiteranschlusselement 53 Aufnahmeraum 54 Handhabungstasche 55 Gegenkodierung 56 Tragschiene 60 Entriegelungswerkzeug 70 As in Fig. 6 and 7 is further shown, the first mounting coding 16a, 26a of the first and second metal feet 10, 20 of the Metallfußanordnung 30 is hooked into a formed on the terminal housing 52 of the terminal block 50 counter-coding 56. LIST OF REFERENCE NUMBERS First metal foot 10 First spring element of the first metal foot 11a Second spring element of the first metal foot 11b plant area 12 fastening area 13 rear grip 14 outrigger 15a, 15b First mounting coding of the first metal foot 16a bottom 17 fastener 18 Second metal foot 20 First spring element of the second metal foot 21a Second spring element of the second metal foot 21b fastening area 22 fastening area 23 rear grip 24 outrigger 25a, 25b First mounting coding of the second metal foot 26a Second mounting coding of the second metal foot 26b bottom 27 fastener 28 locking element 29 Metallfußanordnung 30 conductor rail 40 opening 41 terminal 50 foot element 51 terminal housing 52 Conductor connection element 53 accommodation space 54 handling case 55 against coding 56 rail 60 unlocking 70

Claims (11)

  1. Metallic protective conductor connection element for arranging on an electrical terminal strip (50) having a terminal housing (52), having a metal foot arrangement (30), which has at least one first metal foot (10) for being supported on a carrier rail (60) and at least one second metal foot (20) for being supported on the carrier rail (60), wherein the first metal foot (10) has a first spring element (11a) and a second spring element (11b) having a fastening region (13) for forming a form-fitting connection of the second spring element (11b) of the first metal foot (10) to the carrier rail (60) and wherein the second metal foot (20) has a first spring element (21a) having a fastening region (22) for forming a form-fitting connection of the first spring element (21a) of the second metal foot (20) to the carrier rail (60) and a second spring element (21b) for forming a form-fitting connection of the second spring element (21b) of the second metal foot (20) to the carrier rail (60), wherein the fastening region (13) of the second spring element (11b) has a latching area formed as an angled-away rear grip (14), which engages behind the carrier rail (60) in a mounted state of the metal foot (10) so that the second spring element (11b) of the first metal foot (10) can be latched by way of the fastening region (13) thereof to the carrier rail (60), and wherein the second spring element (21b) of the second metal foot (20) is formed in a substantially identical manner to the second spring element (11b) of the first metal foot (10) and has a fastening region (23) having a latching area formed as a rear grip (24), by means of which the second spring element (21b) of the second metal foot (20) can be fastened in a form-fitting manner to the carrier rail (60) by latching to the carrier rail (60), characterized in that the first spring element has a contact region (12) formed in a rounded-off manner for forming a force-fitting connection of the first spring element (11a) of the first metal foot (10) to the carrier rail (60).
  2. Metallic protective conductor connection element according to Claim 1, characterized in that the second metal foot (20) has a latching element (29) for latching to a foot element (51) of the terminal housing (52) so that exclusively the second metal foot (20) of the metal foot arrangement (30) is latched in the foot element (51) of the terminal housing (52) in a mounted state of the metallic protective conductor connection element on the terminal strip (50).
  3. Metallic protective conductor connection element according to Claim 1 or 2, characterized in that the metal foot arrangement (30) has two second metal feet (20) and at least one first metal foot (10), wherein the at least one first metal foot (10) is arranged between the two second metal feet (20).
  4. Metallic protective conductor connection element according to one of Claims 1 to 3, characterized in that the first metal foot (10) and the second metal foot (20) have at least one assembly coding means (16a, 26a, 26b).
  5. Metallic protective conductor connection element according to Claim 4, characterized in that the assembly coding means (16a, 26a, 26b) is formed on an outer circumferential surface of the first metal foot (10) and/or on an outer circumferential surface of the second metal foot (20).
  6. Metallic protective conductor connection element according to Claim 4 or 5, characterized in that a first assembly coding means (16a, 26a) is formed on a bottom side of the first metal foot (10), which bottom side points in the direction of the carrier rail (60), in a mounted state of the metallic protective conductor connection element on the carrier rail (60) and/or on a bottom side of the second metal foot (20), which bottom side points in the direction of the carrier rail (60), in a mounted state of the metallic protective conductor connection element on the carrier rail (60).
  7. Metallic protective conductor connection element according to Claim 6, characterized in that the first assembly coding means (16a, 26a) is in the form of a recess.
  8. Metallic protective conductor connection element according to one of Claims 4 to 7, characterized in that a second assembly coding means (26b) is formed on the latching element (29) of the first spring element (21a) of the second metal foot (20).
  9. Metallic protective conductor connection element according to Claim 8, characterized in that the second assembly coding means (26b) is in the form of a hook.
  10. Metallic protective conductor connection element according to one of Claims 1 to 9, characterized in that the first metal foot (10) and/or the second metal foot (20) has at least one fastening means (18, 28) for fastening the metal foot arrangement (30) to a busbar (40) arranged in the terminal housing (52).
  11. Electrical terminal strip, in particular protective conductor terminal, for fitting onto a carrier rail (60), having a terminal housing (52) formed from insulating material, at least two conductor connection elements (53), at least one busbar (40) arranged in the terminal housing (52) and electrically connecting the conductor connection elements (53), and a metallic protective conductor connection element serving for electrical conductive connection between the busbar (40) and the carrier rail (60), which metallic protective conductor connection element is formed according to one of Claims 1 to 10.
EP14795829.2A 2013-12-18 2014-11-10 Metal protective conductor connection element, and electric series terminal Active EP3084891B1 (en)

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DE102013114315.6A DE102013114315A1 (en) 2013-12-18 2013-12-18 Metallic protective conductor connection element and electrical terminal block
PCT/EP2014/074148 WO2015090729A1 (en) 2013-12-18 2014-11-10 Metal protective conductor connection element, and electric series terminal

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EP3084891B1 true EP3084891B1 (en) 2019-03-27

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US (1) US9831569B2 (en)
EP (1) EP3084891B1 (en)
CN (1) CN105830282B (en)
DE (1) DE102013114315A1 (en)
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DE102015117251B4 (en) * 2015-10-09 2025-04-17 Phoenix Contact Gmbh & Co. Kg Protective conductor contact foot for an electrical terminal block
EP3391471B1 (en) * 2015-12-17 2023-03-22 TE Connectivity Germany GmbH Rail socket with improved current transmission
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Also Published As

Publication number Publication date
CN105830282B (en) 2019-04-16
US9831569B2 (en) 2017-11-28
US20160322718A1 (en) 2016-11-03
ES2719700T3 (en) 2019-07-12
DE102013114315A1 (en) 2015-06-18
CN105830282A (en) 2016-08-03
EP3084891A1 (en) 2016-10-26
WO2015090729A1 (en) 2015-06-25

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