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EP4391005B1 - Überspannungsschutzanordnung und anschlussmodul dafür - Google Patents

Überspannungsschutzanordnung und anschlussmodul dafür

Info

Publication number
EP4391005B1
EP4391005B1 EP22315337.0A EP22315337A EP4391005B1 EP 4391005 B1 EP4391005 B1 EP 4391005B1 EP 22315337 A EP22315337 A EP 22315337A EP 4391005 B1 EP4391005 B1 EP 4391005B1
Authority
EP
European Patent Office
Prior art keywords
connection terminal
modular
face
neutral
housing
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
EP22315337.0A
Other languages
English (en)
French (fr)
Other versions
EP4391005A1 (de
Inventor
Steve DORGLER
Marine GENNERAT
Yannick HUCK
Antoine SCHWAAB
Ralf Lange
Monika Stuckmann
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
Hager Electro SAS
Original Assignee
Phoenix Contact GmbH and Co KG
Hager Electro SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Phoenix Contact GmbH and Co KG, Hager Electro SAS filed Critical Phoenix Contact GmbH and Co KG
Priority to EP22315337.0A priority Critical patent/EP4391005B1/de
Publication of EP4391005A1 publication Critical patent/EP4391005A1/de
Application granted granted Critical
Publication of EP4391005B1 publication Critical patent/EP4391005B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01H83/20—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
    • 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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H01H71/1018—Interconnected mechanisms with only external interconnections
    • 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
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/08—Overvoltage arresters using spark gaps structurally associated with protected apparatus

Definitions

  • the invention relates to the field of surge protection assemblies.
  • MCB Miniature Circuit Breaker
  • SPD Surge Protection Device
  • Such a modular circuit breaker provides protection against short-circuit and overload type faults.
  • such a modular surge arrester provides protection against overvoltage type faults, for example due to lightning.
  • the publication EP1447831A1 illustrates that it is known to couple a modular circuit breaker and a modular surge arrester to create a surge protection assembly.
  • a modular circuit breaker comprising a phase line and a neutral line can be coupled to a surge arrester comprising a phase line, a neutral line and an earth line.
  • electrical and mechanical connection means which are integrated into the surge arrester and which can cooperate electrically with one end of the circuit breaker to connect the phase lines together and to connect the neutral lines together.
  • This configuration has the disadvantage of requiring modification of the shape of the surge arrester housing.
  • the present invention aims to propose an alternative solution which avoids modifying the shape of the lightning arrester housing.
  • the invention relates to a surge protection assembly according to claim 1.
  • the invention also relates to a connection module according to claim 12.
  • this solution makes it possible to propose an overvoltage protection assembly in the form of three separate entities, with a modular circuit breaker 1 and a modular surge arrester 5 which can be connected to each other electrically and mechanically by the addition of a connection module 12 which is a distinct entity and separate on the one hand from the modular circuit breaker 1 and on the other hand from the modular surge arrester 5.
  • the connection module 12 is neither part of the modular circuit breaker 1 nor of the modular surge arrester 5.
  • connection module 12 makes it possible to electrically connect the first and second phase lines to each other, the first and second neutral lines to each other and to connect the first earth line of the modular surge protector 5 to an earth potential via the output 15.
  • the modular circuit breaker 1 and the modular surge arrester 5 are connected by the connection module 12 to form a single-piece unit 17 and the first phase electrical conductor 10 is connected on the one hand to the second phase connection terminal 2 of the modular circuit breaker 1 and on the other hand to the third phase connection terminal 6 of the modular surge arrester 5, the second neutral electrical conductor 11 is connected on the one hand to the second neutral connection terminal 3 of the modular circuit breaker 1 and on the other hand to the third neutral connection terminal 7 of the modular surge arrester 5, and the input 14 of the second earth connection terminal 13 is connected to the first earth connection terminal 8 of the modular surge arrester 5.
  • the surge protection assembly has a compact architecture in the assembled position PA since it forms a single-piece unit 17 by assembling the three entities, namely the first entity, the second entity and the third entity.
  • the surge protection assembly has the advantage of being reversibly mountable and dismountable, it is thus possible to move from the dismounted position PD, in which the three entities are not connected via the connection module 12, to the assembled position PA and vice versa.
  • the first housing 4 of said modular circuit breaker 1 has a generally parallelepiped shape with two main faces respectively a first left main face 18 and a first right main face 19, and first side faces extending from one to the other of the main faces, namely a first rear face 20, a first front face 21, a first lower face 22 and a first upper face 23,
  • the width of the modular circuit breaker 1 corresponding to the modular distance of the circuit breaker dd between the first left main face 18 and the first right main face 19, corresponds to a multiple of a standardized value, called module, the value of which is substantially equal to 18 millimeters, the first phase connection terminal and the first neutral connection terminal emerging from the first upper face 23, and the second phase connection terminal 2 and the second neutral connection terminal 3 emerging from the first lower face 22.
  • the modular circuit breaker 1 has a modular format.
  • the second housing 9 of the modular surge arrester 5 has a generally parallelepiped shape with two main faces, respectively a second left main face 24 and a second right main face 25, and second lateral faces extending from one to the other of the main faces, namely a second rear face 26, a second front face 27, a second lower face 28 and a second upper face 29,
  • the width of the modular surge arrester 5 corresponding to the modular distance of the surge arrester dp between the second left main face 24 and the second right main face 25, corresponds to a multiple of a standardized value, called module, the value of which is substantially equal to 18 millimeters, the third phase connection terminal 6, the third neutral connection terminal 7, and the first earth connection terminal 8 emerging from the second lower face 28.
  • the modular surge protector 5 has a modular format.
  • the first earth connection terminal 8 comprises a conductive tab 30 projecting from the second housing 9 and the conductive tab 30 projects from the second lower face 28.
  • the projecting tab 30 has the advantage of being able to be inserted into the input 14 of the second earth connection terminal 13 of the connection module 12.
  • the output 15 of the second earth connection terminal 13 can then be connected to an earth potential of an electrical installation (not shown).
  • this configuration makes it possible to electrically connect the first earth line of the modular surge arrester 5 to the earth potential of an electrical installation.
  • the first phase electrical conductor 10 comprises a first end 31 configured to be connected to the second phase connection terminal 2 of the modular circuit breaker 1 and a second end 32 configured to be connected to the third phase connection terminal 6 of the modular surge arrester 5 and the second neutral electrical conductor 11 comprises a third end 33 configured to be connected to the second neutral connection terminal 3 of the modular circuit breaker 1 and a fourth end 34 configured to be connected to the third neutral connection terminal 7 of the modular surge arrester 5.
  • the third housing 16 has a generally parallelepiped shape with two main faces, respectively a third left main face 35 and a third right main face 36, and third lateral faces extending from one to the other of the main faces, namely a third rear face 37, a third front face 38, a third lower face 39 and a third upper face 40, the width of the connection module 12 corresponding to the modular distance of the connection module dm between the third left main face 35 and the third right main face 36, corresponds to a multiple of a standardized value, called module, the value of which is substantially equal to 18 millimeters, the first end 31, the second end 32, the third end 33 and the fourth end 34 being projecting from the third upper face 40, and the input 14 of the second earth connection terminal 13 emerging from the third upper face 40 and the output 15 of the second earth connection terminal 13 emerging from the third lower face 39.
  • connection module 12 has a modular format.
  • location of the first end 31, the second end 32, the third end 33 and the fourth end 34 protruding from the third upper face 40 makes it possible to easily connect simultaneously on the one hand the lower end of the modular circuit breaker 1 by its first lower face 22 and on the other hand the lower end of the modular surge arrester 5 by its second lower face 28.
  • the second earth connection terminal 13 is a screw cage and said input 14 is intended to be connected with the conductive tab 30.
  • this type of second earth connection terminal 13 makes it possible to maintain the wiring habits of the installers. Thanks to this screw cage, it is possible to mechanically and electrically connect the tab 30 via said input 14 and an earth potential not represented by said output 15.
  • the screw cage comprises at least one cage 44 and one screw 45.
  • the third upper face 40 of the third housing 16 comprises a first flat portion 41 to which the first lower face 22 is joined and a second flat portion 42 to which the second lower face 28 is joined.
  • the first lower face 22 of the first housing 4 and the second lower face 28 of the second housing 9 are aligned and the first flat portion 41 and the second flat portion 42 are aligned.
  • This configuration is suitable when a first height of the modular circuit breaker 1 and a second height of the modular surge arrester 5 are identical.
  • the first height corresponds to the distance between the first lower face 22 and the first upper face 23.
  • the second height corresponds to the distance between the second lower face 28 and the second upper face 29.
  • the first lower face 22 of the first housing 4 and the second lower face 28 of the second housing 9 are offset and the first flat portion 41 and the second flat portion 42 are offset.
  • This configuration is suitable when the first height of the modular circuit breaker 1 and the second height of the modular surge arrester 5 are different.
  • the first upper face 23 and the second upper face 29 are preferentially aligned as illustrated by the figures 3 to 4 And 15 to 16 .
  • the third housing 16 preferably comprises a first shell 16a and a second shell 16b which can be assembled by assembly means 43, for example by clipping or fitting.
  • the first shell 16a comprises, for example, the third upper face 40.
  • the second shell 16b comprises for example the third left main face 35, the third right main face 36, the third rear face 37, the third front face 38 and the third lower face 39.
  • the third housing 16 forms an envelope receiving inside at least the first phase electrical conductor 10, the second neutral electrical conductor 11 and the second earth connection terminal 13.
  • the third upper face 40 comprises an internal wall 40a which comprises means 40b for fixing the first phase electrical conductor 10 and the second neutral electrical conductor 11.
  • the first portion 41 of the third upper face 40 comprises at least one first orifice 46 which is crossed by the first end 31 of the first phase electrical conductor 10 and at least one second orifice 47 which is crossed by the third end 33 of the second neutral electrical conductor 11.
  • the second portion 42 of the third upper face 40 comprises at least one third orifice 48 which is crossed by the second end 32 of the first phase electrical conductor 10 and at least one fourth orifice 49 which is crossed by the fourth end 34 of the second neutral electrical conductor 11.
  • the second portion 42 of the third upper face 40 comprises a fifth orifice 50 which gives access to the input 14 of the second earth connection terminal 13.
  • the second orifice 47 is arranged in a first corner formed by the third left main face 35 and the third rear face 37.
  • the first portion 41 of the third upper face 40 comprises a single first orifice 46.
  • the first portion 41 of the third upper face 40 comprises a plurality of first orifices 46, for example three, which are each crossed by a third end 31 of a second neutral electrical conductor 11.
  • this plurality of first orifices 46 are aligned in a first row.
  • the second portion 42 of the third upper face 40 comprises a single third orifice 48.
  • the second portion 42 of the third upper face 40 comprises a plurality of third orifices 48, for example three, which are each crossed by a second end 32 of a first phase electrical conductor 10.
  • said at least one third orifice 48 and the fourth orifice 49 are aligned in a second row.
  • the first row and the second row are not aligned.
  • the fifth orifice 50 is arranged in a second corner formed by the third right main face 36 and the third rear face 37.
  • At least the first end 31, the second end 32, the third end 33 and the fourth end 34 are rigid to facilitate connection.
  • at least the first end 31, the second end 32, the third end 33 and/or the fourth end 34 are flexible.
  • the latter are each formed by one end of a rigid, enameled wire.
  • the dimension of the first end 31, second end 32, third end 33 and fourth end 34 is defined to allow insertion respectively into the second phase connection terminal 2, the third phase connection terminal 6, the second neutral connection terminal 3 and the third neutral connection terminal 7.
  • At least the first end 31, the second end 32, the third end 33 and the fourth end 34 are orthogonal to the third upper face 40.
  • the first phase electrical conductor 10 is a copper cable or wire.
  • the second neutral electrical conductor 11 is a copper cable or wire.
  • the first phase electrical conductor 10 and the second neutral electrical conductor 11 are for example rigid and are each formed by a rigid and enameled wire, preferably made of copper. In this case, the first phase electrical conductor 10 and the second neutral electrical conductor 11 are for example folded to be positioned in the first shell 16a.
  • the first phase electrical conductor 10 and the second neutral electrical conductor 11 are flexible and are each formed either by a flexible conductor with a guide to orient the cable outlet, or by a braided and compacted flexible conductor or with a rigid lug.
  • the screw cage of the second earth connection terminal 13 comprises at least one cage 44 and one screw 45.
  • the third front face 38 comprises a sixth orifice 51 which provides access to an insertion channel for the screw 45.
  • the screw head 45 is intended to be flush with the third front face 38.
  • the third front face 38 includes a marking 52 which symbolizes the earth potential.
  • the third lower face 39 comprises a seventh orifice 53 which gives access to the output 15 of the second earth connection terminal 13.
  • the seventh orifice 53 is arranged in a third corner formed by the third right main face 36 and the third rear face 37.
  • the fifth orifice 50 and the seventh orifice 53 are aligned.
  • the projecting tab 30 is perpendicular to the second lower face 28.
  • the modular distance of the connection module dm is equal to the sum of the modular distance of the circuit breaker dd and the modular distance of the surge arrester dp.
  • the first height of the modular circuit breaker 1 is greater than the second height of the modular surge arrester 5.
  • the first lower face 22 of the first housing 4 and the second lower face 28 of the second housing 9 are preferably offset by an offset distance which is substantially equal to the difference between the first height and the second height.
  • first planar portion 41 and the second planar portion 42 are offset by this same offset distance.
  • the first phase connection terminal, the first neutral connection terminal, the second phase connection terminal 2, and the second neutral connection terminal 3 are screw cages.
  • the first phase connection terminal is intended to be connected to a phase potential and the first neutral connection terminal is intended to be connected to a neutral potential.
  • the third phase connection terminal 6 and the third neutral connection terminal 7 are screw cages.
  • THE figures 1 to 12 relate to a surge protection assembly according to a first variant embodiment of the invention.
  • the modular circuit breaker 1 comprises a single first phase line and a single first line of neutral and the modular surge arrester 5 comprises a single second phase line, a single second neutral line and a single first earth line.
  • the connection module 12 comprises a single first phase electrical conductor 10, a single second neutral electrical conductor 11 and a single second earth connection terminal 13.
  • THE figures 1 And 2 illustrate this surge protection assembly in a dismantled position PD, i.e. the connection module 12 is not electrically and mechanically connected with the modular circuit breaker 1 and the modular surge arrester 5.
  • These figures 1 And 2 show in particular that the modular circuit breaker 1 has a single second phase connection terminal 2 and a single second neutral connection terminal 3 which emerge from the first lower face 22 and that the modular surge arrester 5 has a single third phase connection terminal 6, a single third neutral connection terminal 7 and a single first earth connection terminal 8 which emerge from the second lower face 28.
  • FIGS. 3 to 6 illustrate this surge protection assembly in the assembled PA position.
  • the figures 3 And 4 show in particular that this surge protection assembly comes in the form of the monobloc unit 17 which in this case has an overall width LG1 equal to two modules.
  • THE figures 7 to 9 show in particular that only one first end 31 and only one third end 33 project from the first portion 41 of the third upper face 40 and that only one second end 32 and only one fourth end 34 project from the second portion 42 of the third upper face 40.
  • connection module 12 comprises a single first phase electrical conductor 10, a single second neutral electrical conductor 11 and a single second connection terminal earth 13 which are contained in the third housing 16.
  • the third housing 16 is furthermore formed by the first shell 16a and the second shell 16b which are not assembled, but can be assembled by the assembly means 43 for example by clipping or interlocking as illustrated by the figures 7 to 10 .
  • THE figures 13 to 25 relate to a surge protection assembly according to a second variant embodiment of the invention.
  • the modular circuit breaker 1 comprises three first phase lines and a single first neutral line and the modular surge arrester 5 comprises three second phase lines, a single second neutral line and a single first earth line.
  • the connection module comprises three first phase electrical conductors 10, a single second neutral electrical conductor 11 and a single second earth connection terminal 13.
  • THE figures 13 And 14 illustrate this surge protection assembly in a dismantled position PD, i.e. the connection module 12 is not electrically and mechanically connected with the modular circuit breaker 1 and the modular surge arrester 5.
  • These figures 13 And 14 show in particular that the modular circuit breaker 1 has three second phase connection terminals 2 and a single second neutral connection terminal 3 which emerge from the first lower face 22 and that the modular surge arrester 5 has three third phase connection terminals 6, a single third neutral connection terminal 7 and a single first earth connection terminal 8 which emerge from the second lower face 28.
  • the figures 15 to 18 illustrate this surge protection assembly in the assembled PA position.
  • the figures 15 And 16 show in particular that this surge protection assembly comes in the form of the monobloc unit 17 which in this case has an overall width LG2 equal to five modules.
  • THE figures 19 to 21 show in particular that three first ends 31 and a single third end 33 protrude from the first portion 41 of the third upper face 40 and that three second ends 32 and only one fourth end 34 protrude from the second portion 42 of the third upper face 40.
  • THE figures 22 And 23 show that the output 15 of the second earth connection terminal 13 emerges from the third lower face 39.
  • connection module 12 comprises three first phase electrical conductors 10, a single second neutral electrical conductor 11 and a single second earth connection terminal 13 contained inside the third housing 16.
  • the third housing 16 is furthermore formed by the first shell 16a and the second shell 16b which are not assembled but can be assembled by the assembly means 43 for example by clipping or fitting, as illustrated by figures 19 to 23 .
  • connection module 12 for said surge protection assembly, characterized in that said surge protection assembly is according to the invention and as described previously and in that the connection module 12 comprises:
  • the electrical and mechanical connection means comprising the first phase electrical conductor 10 configured to be connected on the one hand to the second phase connection terminal 2 of the modular circuit breaker 1 and on the other hand to the third phase connection terminal 6 of the modular surge arrester 5, the second neutral electrical conductor 11 configured to be connected on the one hand to the second neutral connection terminal 3 of the modular circuit breaker 1 and on the other hand to be connected to the third neutral connection terminal 7 of the modular surge arrester 5 and the second earth connection terminal 13 comprising said input 14 intended to be connected with the first earth connection terminal 8 of the modular surge arrester 5 and said output 15, and said third housing 16.
  • connection module 12 may comprise the aforementioned characteristics described in particular in relation to said overvoltage protection assembly.

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Claims (12)

  1. Baugruppe zum Schutz gegen Überspannungen, die mindestens Folgendes aufweist:
    - einen modularen Schutzschalter (1) mit mindestens einer ersten Phasenleitung, die mindestens eine erste Phasenanschlussklemme und eine zweiten Phasenanschlussklemme (2) aufweist, einer ersten Neutralleitung, die mindestens eine erste Neutralanschlussklemme und eine zweite Neutralanschlussklemme (3) aufweist, und einem ersten Gehäuse (4),
    - einen modularen Überspannungsschutz (5) mit mindestens einer zweiten Phasenleitung, die mindestens eine dritte Phasenanschlussklemme (6) aufweist, einer zweiten Neutralleitung, die mindestens eine dritte Neutralanschlussklemme (7) aufweist, einer ersten Erdungsleitung, die mindestens eine erste Erdungsanschlussklemme (8) aufweist, und einem zweiten Gehäuse (9),
    - elektrische und mechanische Verbindungsmittel, die mindestens einen ersten elektrischen Phasenleiter (10) und einen zweiten elektrischen Neutralleiter (11) aufweisen,
    wobei die Baugruppe zum Schutz gegen Überspannungen durch folgende Merkmale gekennzeichnet ist:
    dadurch, dass sie außerdem ein Verbindungsmodul (12) aufweist, das die elektrischen und mechanischen Verbindungsmittel aufweist, darunter den ersten elektrischen Phasenleiter (10), der so konfiguriert ist, dass er einerseits an die zweite Phasenanschlussklemme (2) des modularen Schutzschalters (1) und andererseits an die dritte Phasenanschlussklemme (6) des modularen Überspannungsschutzes (5) angeschlossen werden kann, den zweiten elektrischen Neutralleiter (11), der so konfiguriert ist, dass er einerseits an die zweite Neutralanschlussklemme (3) des modularen Schutzschalters (1) und andererseits an die dritte Neutralanschlussklemme (7) des modularen Überspannungsschutzes (5) angeschlossen werden kann, und eine zweite Erdungsanschlussklemme (13) mit einem Eingang (14) zum Anschluss an die erste Erdungsanschlussklemme (8) des modularen Überspannungsschutzes (5) und einem Ausgang (15) sowie ein drittes Gehäuse (16),
    dadurch, dass der modulare Schutzschalter (1), der modulare Überspannungsschutz (5) und das Verbindungsmodul (12) jeweils eine erste Einheit bilden, die durch das erste Gehäuse (4) begrenzt ist, eine zweite Einheit, die durch das zweite Gehäuse (9) begrenzt ist, und eine dritte Einheit, die durch das dritte Gehäuse (16) begrenzt ist.
  2. Baugruppe zum Schutz gegen Überspannungen nach Anspruch 1, dadurch gekennzeichnet, dass in einer zusammengebauten Position (PA) der modulare Schutzschalter (1) und der modulare Überspannungsschutz (5) durch das Verbindungsmodul (12) zu einer einteiligen Einheit (17) verbunden sind und der erste elektrische Phasenleiter (10) einerseits mit der zweiten Phasenanschlussklemme (2) des modularen Schutzschalters (1) und andererseits mit der dritten Phasenanschlussklemme (6) des modularen Überspannungsschutzes (5) verbunden ist, der zweite elektrische Neutralleiter (11) einerseits mit der zweiten Neutralanschlussklemme (3) des modularen Schutzschalters (1) und andererseits mit der dritten Neutralanschlussklemme (7) des modularen Überspannungsschutzes (5) verbunden ist und der Eingang (14) der zweiten Erdungsanschlussklemme (13) mit der ersten Erdungsanschlussklemme (8) des modularen Überspannungsschutzes (5) verbunden ist.
  3. Baugruppe zum Schutz gegen Überspannungen nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass das erste Gehäuse (4) des modularen Schutzschalters (1) eine im Wesentlichen parallelepipedische Form mit zwei Hauptflächen darstellt, nämlich einer ersten linken Hauptfläche (18) und einer ersten rechten Hauptfläche (19), sowie ersten Seitenflächen, die sich von der einen zu der anderen der Hauptflächen erstrecken, nämlich einer erste Rückseite (20), einer erste Vorderseite (21), einer erste Unterseite (22) und einer erste Oberseite (23), wobei die Breite des modularen Schutzschalters (1), die dem modularen Abstand des Schutzschalters (dd) zwischen der ersten linken Hauptfläche (18) und der ersten rechten Hauptfläche (19) entspricht, einem Vielfachen eines Normwerts entspricht, der als Modul bezeichnet wird und dessen Wert im Wesentlichen 18 Millimeter beträgt, wobei die erste Phasenanschlussklemme und die erste Neutralanschlussklemme aus der ersten Oberseite (23) herausragen und die zweite Phasenanschlussklemme (2) und die zweite Neutralanschlussklemme (3) aus der ersten Unterseite (22) herausragen.
  4. Baugruppe zum Schutz gegen Überspannungen nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das zweite Gehäuse (9) des modularen Überspannungsschutzes (5) eine im Wesentlichen parallelepipedische Form mit zwei Hauptflächen darstellt, nämlich einer zweiten linken Hauptfläche (24) und einer zweiten rechten Hauptfläche (25), sowie zweiten Seitenflächen, die sich von der einen zu der anderen der Hauptflächen erstrecken, nämlich einer zweiten Rückseite (26), einer zweiten Vorderseite (27), einer zweiten Unterseite (28) und einer zweiten Oberseite (29), wobei die Breite des modularen Überspannungsschutzes (5), die dem modularen Abstand des Überspannungsschutzes (dp) zwischen der zweiten linken Hauptfläche (24) und der zweiten rechten Hauptfläche (25) entspricht, einem Vielfachen eines Normwerts entspricht, der als Modul bezeichnet wird und dessen Wert im Wesentlichen 18 Millimeter beträgt, wobei die dritte Phasenanschlussklemme (6), die dritte Neutralanschlussklemme (7) und die erste Erdungsanschlussklemme (8) aus der zweiten Unterseite (28) herausragen.
  5. Baugruppe zum Schutz gegen Überspannungen nach Anspruch 4, dadurch gekennzeichnet, dass die erste Erdungsanschlussklemme (8) eine aus dem zweiten Gehäuse (9) hervorstehende Leiterzunge (30) aufweist und dass die Leiterzunge (30) aus der zweiten Unterseite (28) hervorsteht.
  6. Baugruppe zum Schutz gegen Überspannungen nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der erste elektrische Phasenleiter (10) ein erstes Ende (31) aufweist, das zum Anschluss an die zweite Phasenanschlussklemme (2) des modularen Schutzschalters (1) konfiguriert ist, und ein zweites Ende (32), das zum Anschluss an die dritte Phasenanschlussklemme (6) des modularen Überspannungsschutzes (5) konfiguriert ist, und dass der zweite elektrische Neutralleiter (11) ein drittes Ende (33) aufweist, das zum Anschluss an die zweite Neutralanschlussklemme (3) des modularen Schutzschalters (1) konfiguriert ist, und ein viertes Ende (34), das zum Anschluss an die dritte Neutralanschlussklemme (7) des modularen Überspannungsschutzes (5) konfiguriert ist.
  7. Baugruppe zum Schutz gegen Überspannungen nach Anspruch 6, dadurch gekennzeichnet, dass das dritte Gehäuse (16) eine im Wesentlichen parallelepipedische Form mit zwei Hauptflächen darstellt, nämlich einer dritten linken Hauptfläche (35) und einer dritten rechten Hauptfläche (36), sowie dritten Seitenflächen, die sich von der einen zu der anderen der Hauptflächen erstrecken, nämlich einer dritten Rückseite (37), einer dritten Vorderseite (38), einer dritten Unterseite (39) und einer dritten Oberseite (40), wobei die Breite des Verbindungsmoduls (12), die dem modularen Abstand des Verbindungsmoduls (dm) zwischen der dritten linken Hauptfläche (35) und der dritten rechten Hauptfläche (36) entspricht, einem Vielfachen eines Normwerts entspricht, der als Modul bezeichnet wird und dessen Wert im Wesentlichen 18 Millimeter beträgt, wobei das erste Ende (31), das zweite Ende (32), das dritte Ende (33) und das vierte Ende (34) aus der dritten Oberseite (40) hervorstehen und der Eingang (14) der zweiten Erdungsanschlussklemme (13) aus der dritten Oberseite (40) herausragt und der Ausgang (15) der zweiten Erdungsanschlussklemme (13) aus der dritten Unterseite (39) herausragt.
  8. Baugruppe zum Schutz gegen Überspannungen nach den Ansprüchen 5 und 6, dadurch gekennzeichnet, dass die zweite Erdungsanschlussklemme (13) eine Schraubklemme ist und dass der Eingang (14) dazu bestimmt ist, mit der Leiterzunge (30) verbunden zu werden.
  9. Baugruppe zum Schutz gegen Überspannungen nach den Ansprüchen 2, 3, 4 und 6, dadurch gekennzeichnet, dass in der zusammengebauten Position (PA) die erste rechte Hauptfläche (19) des ersten Gehäuses (4) und die zweite linke Hauptfläche (24) des zweiten Gehäuses (9) eben sind und aneinander liegen und dass die erste Unterseite (22) des ersten Gehäuses (4) und die zweite Unterseite (28) des zweiten Gehäuses (9) eben sind, dass die dritte Oberseite (40) des dritten Gehäuses (16) einen ersten ebenen Abschnitt (41) aufweist, an den die erste Unterseite (22) angrenzt, und einen zweiten ebenen Abschnitt (42), an den die zweite Unterseite (28) angrenzt.
  10. Baugruppe zum Schutz gegen Überspannungen nach Anspruch 9, dadurch gekennzeichnet, dass die erste Unterseite (22) des ersten Gehäuses (4) und die zweite Unterseite (28) des zweiten Gehäuses (9) fluchtend angeordnet sind und dass der erste ebene Abschnitt (41) und der zweite ebene Abschnitt (42) fluchtend angeordnet sind.
  11. Baugruppe zum Schutz gegen Überspannungen nach Anspruch 9, dadurch gekennzeichnet, dass die erste Unterseite (22) des ersten Gehäuses (4) und die zweite Unterseite (28) des zweiten Gehäuses (9) versetzt angeordnet sind und dass der erste ebene Abschnitt (41) und der zweite ebene Abschnitt (42) versetzt angeordnet sind.
  12. Verbindungsmodul (12) für die Baugruppe zum Schutz gegen Überspannungen, dadurch gekennzeichnet, dass die Baugruppe zum Schutz gegen Überspannungen nach einem der Ansprüche 1 bis 11 ausgeführt ist und dass das Verbindungsmodul (12) Folgendes aufweist:
    die elektrischen und mechanischen Verbindungsmittel, die den ersten elektrischen Phasenleiter (10) aufweisen, der so konfiguriert ist, dass er einerseits an die zweite Phasenanschlussklemme (2) des modularen Schutzschalters (1) und andererseits an die dritte Phasenanschlussklemme (6) des modularen Überspannungsschutzes (5) angeschlossen werden kann, den zweiten elektrischen Neutralleiter (11), der so konfiguriert ist, dass er einerseits an die zweite Neutralanschlussklemme (3) des modularen Schutzschalters (1) und andererseits an die dritte Neutralanschlussklemme (7) des modularen Überspannungsschutzes (5) angeschlossen werden kann, und die zweite Erdungsanschlussklemme (13) mit dem Eingang (14) zum Anschluss an die erste Erdungsanschlussklemme (8) des modularen Überspannungsschutzes (5) und den Ausgang (15) sowie ein drittes Gehäuse (16).
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