EP2031627B1 - Unité de construction comprenant un disjoncteur à courant de défaut et un appareil de protection contre les surtensions - Google Patents

Unité de construction comprenant un disjoncteur à courant de défaut et un appareil de protection contre les surtensions Download PDF

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Publication number
EP2031627B1
EP2031627B1 EP08014687.1A EP08014687A EP2031627B1 EP 2031627 B1 EP2031627 B1 EP 2031627B1 EP 08014687 A EP08014687 A EP 08014687A EP 2031627 B1 EP2031627 B1 EP 2031627B1
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EP
European Patent Office
Prior art keywords
overvoltage protection
circuit breaker
elements
current circuit
conductor
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
EP08014687.1A
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German (de)
English (en)
Other versions
EP2031627A2 (fr
EP2031627A3 (fr
Inventor
Christian Dipl.-Ing. Birkholz
Hartwig Derenthal
Jürgen Ahlemeyer
Ralf Lange
Michael Tegt
Martin Dr.-Ing. Wetter
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.)
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Publication date
Application filed by Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP2031627A2 publication Critical patent/EP2031627A2/fr
Publication of EP2031627A3 publication Critical patent/EP2031627A3/fr
Application granted granted Critical
Publication of EP2031627B1 publication Critical patent/EP2031627B1/fr
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • H01H71/082—Connections between juxtaposed circuit breakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • 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
    • H01R9/2675—Electrical interconnections between two blocks, e.g. by means of busbars
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/10—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess voltage, e.g. for lightning protection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being unbalance of two or more currents or voltages
    • H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being unbalance of two or more currents or voltages with differential transformer

Definitions

  • the invention relates to an assembly consisting of a residual current circuit breaker and an overvoltage protection device, the residual current circuit breaker terminals for the phase conductors (L1, L2, L3) and the neutral conductor (N) and the overvoltage protection device at least one overvoltage protection element with a surge, in particular a surge.
  • the necessary measures for the protection of the power supply of plants and devices are divided into different stages depending on the arrester selection and the expected environmental influences.
  • the overvoltage protection devices for the individual stages basically differ in terms of the level of the discharge capacity and the protection level.
  • the first protection level (type 1) is usually formed by a lightning arrester, which is installed as the most powerful protection device in the central power supply of a building.
  • An essential component of such a lightning arrester is a spark gap with at least two electrodes, wherein an arc arises when the spark gap between the two electrodes is ignited.
  • the second protection level (type 2) usually forms a varistor-based surge arrester. This protection level again limits the remaining voltage across the lightning arrester. Depending on the risk potential of the system to be protected or the building to be protected, it may be sufficient in individual cases if the second level of protection, ie. H. the surge arrester, is started.
  • lightning arresters based on the AEC principle (Active Energy Control), which represent a combination of lightning current arresters and surge arresters.
  • AEC principle Active Energy Control
  • lightning current and surge arresters can be connected directly in parallel. This is particularly advantageous if lightning current and surge arresters can not be installed separately from each other.
  • arresters In the context of the present invention, the variants described above are to be collectively referred to as arresters, without the invention being restricted to a specific type of arrester.
  • Such an arrester then forms the essential component of an overvoltage protection element, wherein the overvoltage protection element has at least one housing receiving the arrester.
  • a surge arrester of the second protection level ie. H. a varistor and / or a gas-filled surge arrester used.
  • Known overvoltage protection devices have for connection to electrical lines on a device base, which can be mounted for example on a mounting rail.
  • a surge protection device which is intended to protect, for example, the phase-leading conductors L1, L2, L3 and the neutral conductor N and possibly also the earth conductor PE, corresponding terminals for the phase conductors and the earth or neutral conductors are provided in the known surge protection devices on the device base .
  • Such an overvoltage protection device is for example from the brochure " Surge protection TRABTECH 2005 ", pages 20 and 21 the applicant and from the DE 20 2004 005 491 U1 and the DE 20 2004 006 227 U1 known.
  • the overvoltage protection elements are designed as "protective plug", d. H. the lower device part has plug sockets connected to the connection terminals and the overvoltage protection element has corresponding plug pins, so that the overvoltage protection element can be plugged onto the device lower part.
  • the known overvoltage protection device still has a changeover contact as a signal generator for a defect message, for which purpose a contact element is provided on the device lower part and a corresponding countercontact element is provided on the overvoltage protection element.
  • Residual current circuit breakers are also used in electrical circuits, which in common usage are referred to as RCD switches or according to the European standard as RCD (Residual Current Protective Device). Residual current circuit breakers are basically used to protect people, animals and property from the dangers of electric current. If due to inadequate electrical isolation between the power grid and ground, power is flowing in a "wrong" way, such as through a person's body, then the circuit under test will be disconnected from the rest of the power supply by the residual current circuit breaker within a very short time.
  • RCDs are residual-current circuit-breakers independent of the mains supply, which do not have semiconductor-based amplifier circuits, so that the risk that the residual-current-operated circuit-breaker no longer functions in the event of a fault due to a transistor failure is eliminated.
  • residual current circuit breakers are nowadays usually installed in fuse boxes in addition to overcurrent protection devices (circuit breakers and fuses).
  • the residual current circuit breaker is arranged before the surge arresters, so that a coupled from the mains overvoltage the switching contacts of the residual current circuit breaker charged so that they can weld at high surge currents.
  • the residual current circuit breaker can then no longer fulfill its protective function in the fault current case, with the additional problem that such a failure of the residual current circuit breaker is not detected.
  • the EP 0 173 018 A1 discloses an electrical installation with an overvoltage protection device and a residual current circuit breaker, the overvoltage protection device is arranged in terms of network and consumer in a secondary branch.
  • the EP 0 173 018 A1 gives the skilled person the doctrine which in itself is already known from the prior art ( DE 30 29 453 C2 ) discard known assembly of a residual current circuit breaker and a surge protective device and instead form the residual current circuit breaker and the surge protection device as two separate, independent devices, the overvoltage protection device based on the network with the consumers arranged therein and the residual current circuit breaker is to be arranged in a secondary branch.
  • the present invention is therefore an object of the invention to improve a unit initially described consisting of a residual current circuit breaker and a surge protection device to the extent that a safe protection of both persons and equipment is guaranteed against fault currents and surges, the installation and the structure of the unit should be as simple as possible.
  • a coupled from the mains overvoltage is discharged before the residual current circuit breaker, so that the switching contacts of the residual current circuit breaker are not burdened by the overvoltage.
  • pre-bent conductor elements for the electrical connection between the conductors L1, L2, L3, N to be connected to the input side terminals of the residual current circuit breaker and the individual overvoltage protection elements, a complex manual wiring of the individual devices can be dispensed with.
  • the connection of the phase conductors and the neutral conductor to the unit according to the invention takes place as the electrician in the installation of normal residual current circuit breakers is used to; an additional electrical connection of the overvoltage protection device is therefore not required.
  • insulated copper wires in particular enamel-insulated copper wires
  • enamel-insulated copper wires have the advantage that they are very simple and inexpensive to produce and also easily adaptable to the respective requirements.
  • enamel-insulated copper wires are considerably cheaper than corresponding stamped and bent parts.
  • the projecting into the input-side terminals for the phase conductors and the neutral conductor at the residual current circuit breaker ends of the conductor elements are electrically and mechanically connected to a metal plate.
  • the metal plates are each arranged at the individual ends of the conductor elements, that when connecting the phase conductor and the neutral conductor to the residual current circuit breaker, the phase conductor and the neutral conductor are arranged on one side of the metal plate and the end of a conductor element on the opposite side of the metal plate.
  • the metal plates which are preferably soldered or welded to the ends of the conductor elements, thus ensure a secure double clamping of a conductor to be connected and the one end of a pre-bent conductor element.
  • the conductor elements are arranged and held in a particular plastic carrier.
  • the carrier has for this purpose corresponding recesses in which the pre-bent conductor elements can be engaged.
  • the overvoltage protection elements are also designed as "protective plugs" in the case of the overvoltage protection device of the constructional unit according to the invention.
  • the overvoltage protection device has a lower device part, which preferably has plug contacts designed as plug contacts, into which the overvoltage protection elements, preferably designed as plug pins corresponding plug-in contacts are inserted, so that the overvoltage protection elements can be plugged onto the device base.
  • the plug-in contacts arranged in the device lower part are electrically and mechanically connected, in particular soldered or welded, to the second ends of the individual conductor elements assigned to the overvoltage protection elements.
  • a metal plate is soldered or welded at one end of the enamel-insulated copper wires, which are preferably used as conductor elements, in each case a metal plate and at the other end a socket.
  • the thus preassembled conductor elements are also arranged and held together in a plastic carrier, so that for the assembly of this module only the plastic carrier must be inserted into the housing of the device base of the surge protective device and secured there.
  • the device lower part of the overvoltage protection device of the constructional unit according to the invention also has a telecommunications contact for remote signaling of the state of at least one overvoltage protection element and the overvoltage protection elements an optical status indication.
  • the telecommunications contact in the lower part of the device has a switch, wherein the optical status indicator and the switch via a common mechanical actuation system can be actuated.
  • the mechanical actuating system has a first spring-loaded actuating device in the form of a lever system for actuating the switch and a second spring-loaded actuating device for actuating the optical status indicator.
  • the device lower one of the number of overvoltage protection elements corresponding number of coding elements and the individual overvoltage protection elements each have a corresponding Gegenkodierelement, whereby a faulty plugging an overvoltage protection element can be prevented to an incorrect position on the device base.
  • the Fig. 1 and 7 each show a structural unit 1 according to the invention consisting of a residual current circuit breaker 2 and an overvoltage protection device 3, wherein the two structural units 1 each shown on a support rail 4 can be latched.
  • the two in the Fig. 1 and 7 illustrated units 1 differ from each other in that the unit 1 according to Fig. 1 in a 3-phase power supply and the unit 1 according to Fig. 7 can be used in a single-phase power supply.
  • the residual current circuit breaker 2 in the embodiment according to Fig. 1 Input and output side three terminals 5 for the phase conductors L1, L2, L3 and one terminal 6 for the neutral conductor N on, while in the residual current circuit breaker 2 according to Fig.
  • the overvoltage protection device 3 has a corresponding number of overvoltage protection elements 7, wherein the individual overvoltage protection elements 7 each have a arranged in a housing 8 arrester 9, 10.
  • the arresters connected to the input-side terminals 5 for the phase conductors L1, L2, L3 9 are formed as varistors, while the arrester 10, on the one hand to the terminal 6 for the neutral conductor N and the second terminals 5 of the other Arrester 9 and on the other hand connected to ground PE, is designed as a gas-filled surge arrester. Besides, it is off Fig. 2 It can be seen that, from the point of view of the supplying network in the direction of energy flow E, the overvoltage protection device 3 is arranged in front of the residual current circuit breaker 2 according to the equivalent electrical circuit diagram in FIG Fig.
  • the residual current circuit breaker 2 has the residual current circuit breaker 2 is still a switching mechanism 11, a summation current transformer 12, a residual current release 13 and a - also in Fig. 1 shown - test button 14 on.
  • the residual current circuit breaker 2 corresponds to a commercially available RCD.
  • a metal plate 17 is welded to the individual ends 16 of the paint-insulated copper wires 15 used as conductor elements, which are in the assembled state within the clamping pockets 18 of the terminals 5, 6 formed as screw terminals.
  • the metal plates 17 are located below the ends 16 of the conductor elements 15, so that the connected phase conductors L1, L2, L3 and the neutral conductor N in the connected state are bent from below against the metal plates 17 and thereby electrically contacted within the clamping pocket 18 ,
  • the arrangement of the metal plates 17 at the ends 16 of the conductor elements 15 thus ensures secure double clamping of both the conductors to be connected and the ends of the conductor elements 15 in the clamping pockets 18 of the terminals 5, 6.
  • the individual enamel-insulated copper wires 15 are arranged and held together in a plastic carrier 19.
  • the plastic carrier 19 has for this purpose at least partially corresponding recesses 20 in which the pre-bent copper wires 15 are engaged.
  • the overvoltage protection device 3 consists of a lower device part 21 and a plurality of, designed as a "protective plug" overvoltage protection elements 7.
  • plug contacts 22 are formed in the lower part of the device designed as sockets into which the corresponding plug pins, not shown here connected to the arresters 9, 10 of the overvoltage protection elements 7 can be inserted.
  • the plug contacts 22 of the device base 21 with the second ends 23 of the conductor elements 15, which are assigned to the individual overvoltage protection elements 7, are electrically and mechanically connected.
  • the plug contacts 22 are welded or soldered to the ends 23 of the conductor elements 15.
  • the individual overvoltage protection elements 7 of the overvoltage protection device 3 each have on their upper side an optical status indicator 24, wherein the status indicator 24 is preferably designed as a green / red color display.
  • the lower device part 21 still has a - not shown here - telecommunications contact for remote signaling of the states of the individual overvoltage protection elements 7
  • the assembly 1 consists of the residual current circuit breaker 2 and the overvoltage protection device 3
  • the residual current circuit breaker 2 and the overvoltage protection device 3 each have a separate housing 25, 26, wherein the housing 26 is the housing of the device base 21.
  • the housing 25 of the residual current circuit breaker 2 and the housing 26 of the device base 21 are mechanically firmly connected to each other, in particular glued together.
  • the housing 25 of the residual current circuit breaker 2 has a lid 27 attachable to the feed side (FIG. Fig. 7 ), which has corresponding recesses for receiving and holding the plastic carrier 19.
  • the lower device part 21 of the overvoltage protection device 3 has two earth terminals 28 for connection to the equipotential bonding and to the system ground.
  • the two ground terminals 28 are formed as bi-connect terminals, so that at the respective lower ground terminal 28 a stripped conductor or a conductor with ferrule and to the respective upper ground terminal 28 a conductor with fork shoe contact can be easily connected.

Claims (12)

  1. Unité constituée d'un disjoncteur différentiel (2) et d'un dispositif de protection contre les surtensions (3), dans lequel le disjoncteur différentiel (2) comprend des connecteurs (5, 6) destinés aux conducteurs de phase (L1, L2, L3) et au conducteur neutre (N) et le dispositif de protection contre les surtensions (3) comprend au moins un élément de protection contre les surtensions (7) comportant une dérivation (9, 10), notamment une dérivation de surtension,
    caractérisée
    en ce que, du point de vue du réseau d'alimentation, dans la direction du flux d'énergie (E), le dispositif de protection contre les surtensions (3) est disposé en amont du disjoncteur différentiel (2), et
    en ce que la liaison électrique entre les conducteurs (L1, L2, L3, N) devant être connectés aux connecteurs d'entrée (5, 6) du disjoncteur différentiel (2) et les éléments de protection contre les surtensions individuels (7) s'effectue par l'intermédiaire d'éléments conducteurs préalablement courbés (15).
  2. Unité selon la revendication 1, caractérisée en ce qu'on utilise en tant qu'éléments conducteurs (15) des fils de cuivre isolés, notamment des fils de cuivre isolés par de la laque.
  3. Unité selon la revendication 1 ou 2, caractérisée en ce qu'elle pénètre dans une extrémité (16) des éléments conducteurs (15) dans les connecteurs (5, 6) destinés aux conducteurs de phase (L1, L2, L3) et au conducteur neutre (N) sur le disjoncteur différentiel (2) de manière à ce que, lors du raccordement des conducteurs de phase (L1, L2, L3) et du conducteur neutre (N) au disjoncteur différentiel (2), les conducteurs de phase (L1, L2, L3) et le conducteur neutre (N) sont connectés simultanément par l'intermédiaire des éléments conducteurs (15) aux éléments de protection contre les surtensions individuels (7).
  4. Unité selon la revendication 3, caractérisée en ce que les extrémités (16) des éléments conducteurs (15) pénétrant dans les connecteurs (5, 6) destinés aux conducteurs de phase (L1, L2, L3) et au conducteur neutre (N) sur le disjoncteur différentiel (2) sont reliés électriquement et mécaniquement à une plaque métallique (17) et y sont notamment soudés ou brasés, dans lequel les plaques métalliques (17) sont disposées sur les extrémités (16) des éléments conducteurs (15) de manière à ce que, lors de la connexion des conducteurs de phase (L1, L2, L3) et du conducteur neutre (N) au disjoncteur différentiel (2), les conducteurs de phase (L1, L2, L3) et le conducteur neutre (N) soient disposés sur une première face des plaques métalliques (17) et à ce que les extrémités (16) des éléments conducteurs (15) soient disposées sur la face opposée des plaques métalliques (17).
  5. Unité selon l'une quelconque des revendications 1 à 4, caractérisée en ce que les éléments conducteurs (15) sont disposés et maintenus dans un support (19), le support (19) étant de préférence constitué de matière plastique.
  6. Unité selon l'une quelconque des revendications 1 à 5, caractérisée en ce que le dispositif de protection contre les surtensions (3) comprend une partie inférieure de dispositif (21), dans lequel la partie inférieure de dispositif (21) comprend des contacts de connexion (22) reliés aux connecteurs (5, 6) et des contacts de connexion correspondant aux éléments de protection contre les surtensions (7) de manière à ce que les éléments de protection contre les surtensions (7) puissent être enfichés sur la partie inférieure de dispositif (21).
  7. Unité selon la revendication 5 ou 6, caractérisée en ce que les éléments conducteurs (15) sont respectivement reliés électriquement et mécaniquement au niveau de leur extrémité (23) associée aux éléments de protection contre les surtensions (7) au moyen des contacts de connexion (22), notamment par soudage ou brasage.
  8. Unité selon la revendication 6 ou 7, caractérisée en ce que la partie inférieure de dispositif (21) du dispositif de protection contre les surtensions (3) comprend au moins un contact de communication comprenant un commutateur destiné à communiquer l'état d'au moins un élément de protection contre les surtensions (7), et en ce que l'élément de protection contre les surtensions (7) comprend un afficheur d'état optique (24), dans lequel l'afficheur d'état optique (24) et le circuit du contact de communication peuvent être actionnés par l'intermédiaire d'un système d'actionnement mécanique commun.
  9. Unité selon l'une quelconque des revendications 6 à 8, caractérisée en ce que la partie inférieure de dispositif (21) du dispositif de protection contre les surtensions (3) comprend au moins un élément de codage et en ce que l'élément de protection contre les surtensions (7) comprend au moins un élément de contre-codage, dans lequel l'élément de codage et/ou l'élément de contre-codage peuvent de préférence être réglés.
  10. Unité selon l'une quelconque des revendications 1 à 9, caractérisée en ce que le disjoncteur différentiel (2) et le dispositif de protection contre les surtensions (3) ou la partie inférieure de dispositif (21) du dispositif de protection contre les surtensions (3) comprennent respectivement un boîtier distinct (25, 26), dans lequel le boîtier (25) du disjoncteur différentiel (2) et le boîtier (26) du dispositif de protection contre les surtensions (3) ou de la partie inférieure de dispositif (21) sont fermement reliés l'un à l'autre, notamment par vissage ou collage.
  11. Unité selon la revendication 5 et 10, caractérisée en ce que le support (19), avec les éléments conducteurs (15) qui y sont disposés et maintenus et avec les contacts de connecteurs (22) reliés électriquement et mécaniquement aux éléments conducteurs (15), est fermement fixé dans le boîtier (26) de la partie inférieure de dispositif (21), notamment par verrouillage.
  12. Unité selon l'une quelconque des revendications 1 à 11, caractérisée en ce que le dispositif de protection contre les surtensions (3) comprend deux connexions de terre (28) destinées au raccordement à la liaison équipotentielle et à la terre de l'installation.
EP08014687.1A 2007-08-27 2008-08-19 Unité de construction comprenant un disjoncteur à courant de défaut et un appareil de protection contre les surtensions Active EP2031627B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200720011974 DE202007011974U1 (de) 2007-08-27 2007-08-27 Baueinheit bestehend aus einem Fehlerstromschutzschalter und einem Überspannungsschutzgerät

Publications (3)

Publication Number Publication Date
EP2031627A2 EP2031627A2 (fr) 2009-03-04
EP2031627A3 EP2031627A3 (fr) 2010-09-15
EP2031627B1 true EP2031627B1 (fr) 2015-07-01

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EP08014687.1A Active EP2031627B1 (fr) 2007-08-27 2008-08-19 Unité de construction comprenant un disjoncteur à courant de défaut et un appareil de protection contre les surtensions

Country Status (3)

Country Link
EP (1) EP2031627B1 (fr)
DE (1) DE202007011974U1 (fr)
ES (1) ES2546185T3 (fr)

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CN104795809A (zh) * 2014-01-21 2015-07-22 勒格朗法国公司 防暂态过压的保护装置和具有与断路器组装的这种保护装置的自动保护电气组件

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CN102568965B (zh) * 2010-12-16 2016-01-06 上海明科电气有限公司 过电流保护组合式电涌保护器
FR3016731B1 (fr) * 2014-01-21 2016-01-29 Legrand France Interface d'interconnexion d'un disjoncteur et d'un parafoudre, parafoudre comprenant une telle interface et ensemble electrique auto-protege comportant un parafoudre et un disjoncteur interconnectes par une telle interface
DE202014006362U1 (de) * 2014-08-05 2014-09-18 Siemens Aktiengesellschaft Anordnung zur Erfassung von Störlichtbögen in einem Niederspannungsnetz
DE102019112951B3 (de) * 2019-05-16 2020-09-17 Dehn Se + Co Kg System zum Schutz einer elektrischen Quelle oder elektrischen Last
CN113284773B (zh) * 2021-05-26 2022-12-20 上海电器科学研究所（集团）有限公司 一种内置限流熔断器的开关
DE102022207779A1 (de) * 2022-07-28 2024-02-08 Siemens Aktiengesellschaft Einschub-Summenstromwandler-Baugruppe, Reiheneinbaugerät und Montageverfahren

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Publication number Priority date Publication date Assignee Title
CN104795809A (zh) * 2014-01-21 2015-07-22 勒格朗法国公司 防暂态过压的保护装置和具有与断路器组装的这种保护装置的自动保护电气组件

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Publication number Publication date
EP2031627A2 (fr) 2009-03-04
EP2031627A3 (fr) 2010-09-15
ES2546185T3 (es) 2015-09-21
DE202007011974U1 (de) 2007-11-29

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