DE102014118759A1 - Installation switching device with two terminals of different types on one side of the housing - Google Patents

Abstract

The invention relates to an installation switching device (1, 1 '), which has a housing (2) with a front side (3), a narrow side (4) and at the narrow side (4) a terminal connection space (5), wherein in the terminal connection space (5 ) two terminals (6, 7, 8) of different terminal type for connecting two connection conductors (9) are housed.

Description

The invention relates to an installation switching device, which has a housing with a front side, a narrow side and on the narrow side a terminal connection space.

Such a service switching device, for example, a neutral switching device for connection to a phase switching device in an installation distribution.

In a low-voltage power distribution protection devices are used to protect against faulty line conditions, such as circuit breakers. Miniature circuit breakers protect the lines they monitor in the event of overload currents and short-circuit currents. These guards also allow a manual shift operation to be turned on or off under load or no load. When switching off manually under load, one also speaks of disconnecting downstream system components from the power supply. A circuit breaker can therefore be used for separating and protecting. Such a switching device that protects a line can therefore also be referred to as a protected pole or as a single-pole protective device. A switching device that protects and switches a phase line is also referred to as a phase switching device in the context of the present invention. A switching device that does not have the protective function, but only the switching function, is also referred to as a switching pole or disconnector. A switching device that is used in a low-voltage power distribution without protective function for disconnecting the neutral conductor is referred to herein as a neutral conductor switching device.

Depending on the requirements for protection and disconnection, 3-pole switching or 4-pole switching protective devices are usually used in three-phase low-voltage power distribution systems. Thus, for example, 3-pole circuit breaker to protect the three phase conductors are known, which switch almost all three phase conductors of a three-phase power supply network both in a manual switching operation, as well as in case of failure by automatic shutdown.

There are also 4-pole circuit breaker known that switch both manual switching operation as well as in case of failure by automatically switching off all 3 phase conductors and the associated neutral of a three-phase power system with neutral almost simultaneously. These are 4 protected poles. In the circuit breaker switching the neutral conductor, the protective function is not used in this application because it is not required for the neutral conductor. The switching the neutral conductor switching device is referred to in the context of the present invention as a neutral conductor switching device.

Another embodiment is the combination of a 3-pole circuit breaker with a so-called neutral conductor disconnector. These are 3 protected poles with a switching neutral pole without protective function. This unit allows the corresponding separation of the neutral conductor.

If only a single-phase circuit is to be protected, a phase switching device for protecting and switching the phase line is known to be combined with a neutral switching device for disconnecting the neutral conductor.

For several years Selective main circuit breaker (SH-switch, also simply called selective circuit breaker) as a disconnecting device and for selective overcurrent protection in main distributions, eg. B. meter cabinets used. In many cases - even in multi-phase circuits - unipolar switching devices that are assembled into a so-called 3-block, are used.

In a meter cabinet, the selective circuit breaker in front of the counter, ie between the building connection point with the connection fuse and the input terminals of the electricity meter, arranged.

In a low-voltage network realized as a so-called TT system, the protective conductor connected to the electrically conductive housing of the equipment in the consumer installation is connected separately to a separate earth electrode. This is separated from the farm earth in the distribution network. The individual resources as electrical consumers at least one phase line L1, L2 or L3 and the neutral conductor N is supplied. Accordingly, in a building installation according to the TT system from the building connection point runs a four-core main line to the electricity meter, with the three phases L1, L2, L3 and the neutral conductor N. Each of the phases L1, L2 and L3 is secured with a selective circuit breaker. The neutral conductor can be switched on and off with a neutral disconnector. With its output terminals, the electricity meter is connected via a four-wire line with the three phases L1, L2, L3 and the neutral conductor N to the distribution board, the subdistribution to the individual circuits of the building. In the sub-distribution, the power distribution, is divided into individual load circuits, each load circuit as a forward to the consumer one of the phases L1, L2 or L3 and as a return conductor comprises the neutral conductor N. The PE The conductor is laid as a single-core cable from the power distribution board to a main earthing rail of the building. Each load circuit is individually protected, for example with a circuit breaker and / or a residual current circuit breaker.

If a short circuit between the phase and the neutral occurs in one of the downstream load circuits, a high short circuit current flows on the meter input side over the selective circuit breaker associated with the affected phase L1, L2 or L3 and the neutral disconnector. The selective circuit breaker is designed so that it does not interrupt the current flow through the affected phase line counter input side for a certain time, the so-called selective time to give the affected consumer line associated residual current circuit breaker opportunity to turn off the short circuit. Only if this does not happen within the preset selective time, the selective circuit breaker associated with the affected phase line switches the affected phase line on the counter input side. Then all of these phase line downstream load circuits are turned off, even those in which no short circuit had occurred. During the selective period, the high short-circuit current thus flows through both the neutral disconnector and the selective circuit breaker associated with the affected phase.

It is possible, a neutral switching device made of a selective circuit breaker, as shown for example in the DE 10 2008 017 472 A1 is derived by removing from the selective circuit breaker, the two thermal overcurrent release in the main and in the secondary current path. The other modules as well as the arrangement with main and secondary current paths are retained for use as neutral conductor switching device.

A realized in this way neutral switch is the access side, connected at its input side, via a Zugangschraubklemme with an access ladder or a contact rail to busbars in the distribution board. For the downstream-side meter connection, the neutral connected to the neutral switch realized in this manner is connected to a screwless spring-pull output terminal of the neutral switch comprising an externally-operated terminal operating lever. A screwless spring-loaded output terminal with operating lever has the advantage of simple and time-saving connection of the neutral conductor and simple and time-saving operation. However, a screwless spring-outlet terminal with operating lever is limited in terms of the cross-sectional size of the neutral conductor to be connected. If the selective circuit breaker associated with the neutral switch can carry high currents, then a correspondingly large conductor cross section is required even for the neutral conductor, for example 16 mm ² . A neutral conductor with such a large conductor cross-section can be connected to a screwless spring-loaded output terminal with actuating lever. In the case of TT networks, however, a switched neutral is also required for the grid of the plant operator, not only for the supply of the meter. Therefore, it is necessary to connect two neutrals of large cross-section to the neutral side of the neutral side switch. One of the two neutral conductors is used to supply the meter. The second neutral conductor is fed directly to the circuit distributor, bypassing the meter. At a screwless spring tension outlet terminal can be for principle constructive reasons, however, no second neutral conductor large cross-section clamp, also because then the applied actuation force for the terminal operating lever would be too large for manual operation and the spring action lever should be executed so massive that he it would exceed its allocated space requirement on or in the device. For a second screwless spring-loaded outgoing terminal, there is no room in the terminal receiving space of the neutral switching device because its geometric dimensions are limited by relevant known standards.

It is therefore the object of the present invention underlying an installation switching device, which has a housing with a front side, a narrow side and on the narrow side a terminal connection space to improve so that even two outgoing conductor large cross section can be connected to the device, if the outgoing terminal used for reasons of principle does not allow the connection of two connection conductors.

The object is achieved by the surprisingly and in contradiction to all previously known in service switchgear terminals assembly technical teaching found that in the terminal connection space two terminals of different terminal type for connecting two connecting conductors of large cross-section are housed.

The advantage of the solution according to the invention is that a terminal type can be selected for the second terminal, which nevertheless allows a secure connection of a second terminal conductor with a conductor cross-section as large as the first terminal conductor him in a reduced footprint.

In an exemplary advantageous embodiment of the invention, the terminal connection space has a first terminal insertion opening, wherein a first terminal fixed in the terminal connection space of the housing screwless spring-type terminal for connecting a first terminal conductor is present, with a clamping spring and an operable from outside the housing and with the Housing pivotally connected first spring actuating lever, comprising a first clamping strip comprehensive carrier part, wherein the clamping spring comprises a plant leg, a clamping leg with a clamping edge comprising a clamping window and a connecting leg and the connecting leg curved spring back, and wherein the clamping spring cooperates with the first clamping strip so in that a first connection conductor inserted through the first terminal insertion opening can be clamped between the rear side of the clamping strip and the clamping edge of the clamping window, and wherein i a second terminal insertion opening is present in the terminal connection space, and the support part has a second clamping strip to which a clamping frame of a second connection terminal of a different type is coupled to connect a second connection conductor inserted through the second terminal insertion opening.

The advantage of this is the low cost of modifying the existing neutral conductor disconnector. The existing carrier part with the first clamping strip for the first screwless spring-loaded terminal with actuating lever is supplemented by a second clamping strip which is fastened to the carrier part. The spatial arrangement of the first terminal remains unaffected.

According to an advantageous embodiment, the first and the second terminal insertion opening are arranged one behind the other on a narrow side and viewed from the front side. This is a space-saving solution, taking into account the limitation of the width of the neutral switch due to existing standards and installation guidelines.

According to an advantageous embodiment of the invention, the second terminal is of the screw terminal type. Advantageously, a screw terminal allows the secure clamping of a neutral conductor with a large conductor cross-section with a total of small footprint.

According to an advantageous embodiment of the invention, the second terminal has a clamping screw and a first clamping frame, wherein the second connection conductor between the first clamping frame and the second clamping strip by means of the clamping screw is clamped. This is an easy-to-implement type of screw, with a slidably mounted clamping frame, on one narrow side there is an upper web with a threaded opening through which the clamping screw is guided. The clamping screw is supported on the top of the first clamping strip, and when tightening the clamping screw this pulls the clamping frame upwards toward the first clamping strip, so that between the lower web of the clamping frame and the underside of the first clamping strip of the neutral conductor is clamped ,

According to an advantageous embodiment of the invention, the second terminal is of the type of a spring plug terminal. A spring plug-in terminal can also be designed in such a way that the safe connection of a neutral conductor with a large conductor cross-section is possible with a reduced space requirement.

According to an advantageous embodiment of the invention, the spring plug terminal has a U- or Ω-shaped clamping spring with a clamping leg, a mounting leg and the clamping leg with the mounting leg connecting elbow piece, and a second clamping frame having a recess for receiving a second connecting conductor, wherein the Attachment leg is connected to a first end of the second clamping frame, and the free spring end of the clamping leg cooperates with a second connection conductor this clamping.

According to an advantageous embodiment of the invention, the second clamping strip is oriented with its longitudinal direction towards the second terminal insertion opening, and the second clamping frame is coupled to one end of the recess on the second clamping strip, wherein the free spring end of the clamping leg with the second, inserted into the recess , Terminal conductor cooperates this clamping on the second clamping strip. The coupling can be effected in that the second clamping frame is positively or positively and materially connected to the second clamping strip, for example, as welded, or screwed, or also integrally produced as a correspondingly shaped stamped and bent part.

According to an advantageous embodiment of the invention, the second clamping frame is oriented with its longitudinal extension direction perpendicular to the longitudinal extension direction of the second clamping strip. This is very space saving. If the second connection conductor is inserted through the recess, then it is then automatically parallel to the second clamping strip and can be clamped by the clamping end of the clamping spring easily and safely, without slipping, to the second clamping strip.

According to an advantageous embodiment of the invention, an operable from outside the housing and pivotally connected to the housing second spring actuating lever for actuating the spring plug terminal is present. This is advantageous if the second connecting conductor is designed, for example, as a stranded conductor, so that the spring plug-in terminal must be opened during insertion, but the use of an additional tool for opening the spring plug-in terminal is to be avoided, and for tool-free removal of an inserted at the spring plug-in connecting conductor, be it a rigid conductor or a stranded conductor.

According to an advantageous embodiment of the invention, the Verschwenkungsrichtung of the second spring actuating lever when opening the spring plug terminal is oriented from the narrow side in the direction of the interior of the housing. This allows a space-saving arrangement in addition to the already existing first operating lever of the first spring-loaded terminal.

Further advantageous embodiments and improvements of the invention and further advantages can be taken from the subclaims.

Brief Description:

The figures and their description serve to better understand the subject matter of the invention. Assemblies, parts, objects or parts of assemblies or objects that are substantially the same or similar or have the same or similar function may be given the same reference numerals. The figures show embodiments of the invention in a schematic and exemplary manner.

Show it:

1 as an example of an inventive installation switching device derived from a selective circuit breaker neutral conductor switching device,

2 a perspective view of the outgoing side of the service switching device according to 1 in a first embodiment with a second screw-type output terminal,

3 a frontal view of the outgoing side of the service switching device according to 2 .

4 an insight into the departure-side terminal receiving space of the service switching device according to 3 .

5 a perspective view of the outgoing side of the service switching device according to 1 in a second embodiment with a second outgoing terminal of the type spring plug-in terminal,

6 a frontal view of the downstream terminal receiving space of the service switching device according to 5 .

7 a perspective insight into the downstream terminal receiving space of the service switching device according to 5 .

8th a schematic block diagram of the service switching device according to 1 ,

In the figures, identical or equivalent elements or assemblies are designated by the same reference numerals.

For the use of selective circuit breakers in power distribution networks, there are applications for switching and disconnecting the N-conductor. For this purpose, 1-pole selective circuit breakers are combined with a neutral switching device. The neutral conductor switching device is an unprotected pole without a trigger, whose switching mechanism is coupled in a special way with a protected pole (or 3 protected poles).

The 1 shows such a neutral switching device 1 , This in 1 shown housing 2 of the device 1 that corresponds to that used with Applicant's selective circuit breaker sold as a product. The 8th shows a schematic block diagram of the service switching device after 1 , The housing shape in 2 is simplified because of the schematic representation opposite to in 1 shown shape of the housing 2 , Because of the schematic representation in 8th compared to 1 be in 8th the same reference numbers used as in 1 , however, provided with an apostrophe.

The device 1 respectively. 1' has a housing 2 respectively. 2 ' made of insulating material, with a front side 3 , a narrow side 4 and on the narrow side 4 a terminal connection compartment, see reference numeral 5 ' in 8th , In the terminal connection room 5 are two terminals 6 ' . 7 ' accommodated different terminal type for connecting two connection conductors.

The neutral conductor switching device 1 to 1 respectively. 1' to 8th is derived from a selective circuit breaker inter alia by omitting the two thermal overcurrent releases inside, see below.

It will now be the scheme after 8th explained. At a front 3 ' of insulating material 2 ' there is a handle 22 ' for manual switching on and off. At the in the 8th left side shown on the left 4 ' There are two first terminals 6 ' . 7 ' , Both are electrically connected. They allow the connection of two neutral conductor connection conductors. At the in the 8th right side shown on the right 4a ' there is a connection terminal 6a ' (respectively. 6a in 1 ) for connecting also a neutral conductor connection conductor.

If the neutral conductor switching device is used as intended 1 respectively. 8th the device is connected to the terminal 6a ' respectively. 6a connected on the input side via an access conductor. The terminal 6a respectively. 6a ' is therefore also referred to below as an access terminal 6a or access terminal 6a ' designated.

At the terminals 6 ' . 7 ' respectively. 6 . 7 the device or the guided through the device and switchable in the device neutral on the output side to the counter or bypassing the counter directly connected to the neutral conductor in the downstream consumer system. The terminals 6 ' . 7 ' respectively. 6 . 7 . 8th (see the 2 to 7 ) are therefore also referred to below as output terminals.

Between the access terminal 6a ' and the outgoing terminals 6 ' . 7 ' is a main current path leading through the device 31 educated. In the main stream path 31 there is a main contact point 32 , which is designed so that the main current path 31 at the main contact point 32 can be opened and closed. The main stream path 31 includes only the main contact point 32 and a series-connected magnetic release with a striking coil 33 but not other elements such as a thermal release. The bobbin 33 has in a conventional manner a striker, which is driven out in a known manner in the case of a high short-circuit current from the coil and the main contact point 32 hits. The striker is indicated by the dashed line with reference numeral 35 functionally represented.

In the device is a secondary flow path 34 present, which has a side current resistance 36 for current limiting and a secondary contact point 37 to interrupt also the Nebenstrompfades 34 includes.

A short-circuit current splits in time before the response of the impact coil 33 and the opening of the main contact point 32 into a partial flow through the main flow path 31 and a partial flow through the secondary flow path 34 , As a result, not the entire short-circuit current flows through the main contact point 32 what the thermal load of the main contact point 32 reduces and, for example, a welding of the contacts on the main contact point 32 counteracts. The current in the main current path 31 is due to the ohmic resistance of the bobbin 33 limited. The current in the secondary current path 34 is due to the bypass resistance 36 limited.

When opening the main contact point 32 in the event of a short circuit, a switching arc is created. To delete this quickly, is located in the device 1 . 1' , the main contact point 32 assigned, an arc quenching device. How such is structured and works is basically known in switchgear engineering. Therefore, such an arc quenching device is not shown here in the figures.

It is still a rear derailleur 38 available. The rear derailleur 38 is designed so that a mechanical coupling with the handle 22 ' , the main and secondary contact points 32 . 37 and one to the neutral switching device 1' tiered switching device (not shown) is enabled. The mentioned mechanical couplings are in the 1 represented schematically by dashed lines of action without reference numerals. Ways to their concrete realization are familiar to the expert.

The secondary flow path 34 runs parallel only to the main contact point 32 , The bobbin 33 is in line with the off-street 34 and main contact point 32 switched parallel circuit switched. As a result, the ohmic resistance of the impact coil 33 the short-circuit current in the main current path 31 limit, and the bypass resistance 36 Can the current in the secondary current path 34 limit.

Here in the 1 respectively. 8th a variant is shown in which the housing 2 ' a mounting side 31 ' designed to fit the case 2 ' on one or more busbars, it is exemplarily a busbar 40 represented, is possible. The neutral conductor switching device 1 . 1' has an electric with the access terminal 6a . 6a ' connected power busbar 41 inside the device, near the attachment side 39 . 39 ' , is arranged. At the for the attachment to the busbar 41 one point protrudes on the power rail 41 fixed clamping arrangement 42 on the attachment side 39 . 39 ' out of the case 2 . 2 ' out. The clamp arrangement 42 . 42 ' is designed so that a mechanical hold on and an electrical connection of the busbar 40 and thus the neutral conductor switching device 1 . 1' with the busbar 41 . 41 ' is possible.

At the in 1 and 8th shown so-called busbar variant of a neutral switching device based on a selective circuit breaker is thus an access terminal 6a ' . 6a or a clamp arrangement 42 . 42 ' with the neutral conductor busbar 40 the device is connected on the access side. For the counter connection on the output side is the by the neutral conductor switching device 1 . 1' Guided and switchable neutral conductor to a first outgoing terminal 6 ' . 6 connected. This is here as a screwless spring clamp with an operating lever 12 (please refer 1 to 7 ). Details of the known in principle screwless spring clamp, as used herein, are in the DE 10 2008 017 738 A1 described. In the case of a TT network, a switched neutral conductor is also required for the grid of the plant operator. For applications with high currents, eg. B. 80 A or 100 A, the outgoing conductors must have a large conductor cross section, for example, 16 mm ² . In the screwless spring-loaded terminal with actuating lever used here, two such conductors with a large cross-section do not fit into it. Therefore, according to the invention here in the terminal connection space 5 a second output terminal 7 ' . 7 intended. For a second screwless spring-loaded terminal, which is the same as the first outgoing terminal 6 ' . 6 There is no room in the housing. The widths of the boxes are defined by the standard in multiples of so-called module widths, a module width corresponds to 25 mm. Installation of the second outgoing terminal must not increase the module width. Therefore, a terminal type is used according to the invention as a second output terminal, which is different than the screwless spring-type terminal of the first outgoing terminal 6 ' . 6 ,

It will be the 2 to 7 considered. The terminal connection compartment 5 has a first terminal insertion opening 10 , It can be seen in the upper part of the terminal connection space 5 , near the front 3 , one in the terminal compartment 5 Position-fixed first connection terminal 6 screw-type spring-type terminal for connection of a first connecting conductor. This has a first clamping spring 11 and one from outside the case 2 operable and with the housing 2 at a depository 43 pivotally connected first spring actuating lever 12 ,

In the terminal connection room 5 is located to a support part 14 made of metal. This has a first pinch strip 13 in the upper part of the terminal receiving space 5 , The first clamping spring 11 , the spring-clamped clamp spring, has a plant leg 15 , a clamping leg 16 with a clamping window comprising a clamping edge and a plant and clamping legs 15 . 16 connecting curved spring back 17 , The first clamping spring 11 acts with the first clamping strip 13 so together, that one through the first terminal insertion opening 10 inserted first connection conductor between the back of the first clamping strip 13 and the clamping edge of the clamping window can be clamped. This is the plant leg 15 the first clamping spring on the first clamping strip 13 on. When the operating lever 12 from the closure position shown in the figures counterclockwise, is pivoted upward, so he presses with his actuating extension 44 on the spring back 17 and thus the first clamping leg 16 downward. Thus, the clamping window is released, as in the above DE 10 2008 017 738 A1 described.

In the lower part of the terminal compartment 5 is a second terminal insertion opening 18 available. On the support part 14 is a second clamping strip 19 appropriate. For this purpose, an approximately L-shaped extension part on the first clamping strip 13 attached, one leg of which extends down into the second portion of the terminal receiving space, and the second leg to the right, to the second output terminal 18 is bent down and the outer free end of the second clamping strip 19 forms.

With the second clamping strip 19 is a clamping frame 20 . 20 ' a second output terminal 7 . 8th of another type, for connection of one through the second terminal insertion opening 18 introduced second connection conductor 9 ,

The first and second terminal insertion openings 10 . 18 So are on the exit side narrow side 4 and from the front 3 seen from behind.

In the 2 to 4 an embodiment is shown in which the second terminal 7 is of the type of a screw terminal. She has a clamping screw 21 and a first clamping frame 20 wherein the second connection conductor between the first clamping frame 20 and the second clamping strip 19 by means of the clamping screw 30 can be clamped. This is an easy-to-implement type of screw terminal, with a slidably mounted clamping frame 20 , on one narrow side of which there is an upper web with a threaded opening, through which the clamping screw 21 is guided. The clamping screw 21 rests on the top of the first clamping strip 13 off, and when tightening the clamping screw 21 this pulls the first clamping frame 20 upwards towards the first clamping strip 13 too, so that between the lower web of the first clamping frame 20 and the underside of the first clamping strip 13 the neutral conductor can be clamped.

In the 5 to 7 an embodiment is shown in which the second terminal 8th is of the type of a spring plug terminal. The spring plug terminal 8th has a U- or Ω-shaped second clamping spring 23 with a second clamping leg 24 , a fastening leg 25 and a second clamping leg 24 with the attachment leg 25 connecting elbow piece 26 , It also has a second clamping frame 20 ' of a recess for receiving a second connecting conductor 9 having. The attachment leg 25 the second clamping spring 23 is with a first end 27 of the second clamping frame 20 ' connected here either welded or integrally formed as a stamped and bent part or attached to another, known in principle Art.

The free spring end 28 of the second clamping leg 24 acts with a second connection conductor 9 clamping this together. This is the second clamping strip 19 with its longitudinal extension direction on the second terminal insertion 18 oriented, and the second clamping frame 20 ' is with an end 29 the recess on the second clamping strip 19 coupled. The coupling can be done in different ways. It may for example be a solid connection, positive or non-positive. The second clamping frame 20 ' is with its longitudinal direction thereby perpendicular to the longitudinal direction of extension of the second clamping strip 19 oriented. A conductor end inserted through the second terminal insertion opening becomes through the recess in the second clamping frame 20 ' plugged. The free spring end 28 of the second clamping leg 24 then acts with the second, introduced into the recess, connecting conductor 9 so together that it's on the second clamping strip 19 clamps.

To open the spring plug terminal without having to use a tool is one from outside the housing 2 more operable and with the housing 2 on a bearing axis 46 pivotally connected second spring actuating lever 30 available. The pivoting direction of the second spring actuating lever 30 when opening the spring plug terminal 8th is from the narrow side 4 out towards the interior of the case 2 oriented. When the second spring action lever 30 is pivoted in the direction of the housing interior, then he presses with his actuating extension 47 the second clamping leg 24 down, and the free end of the spring 28 gives the connection conductor 9 free, so that it can be pulled out.

The spring plug terminal 8th and the second spring action lever 30 are designed so narrow that they fit in half the module width of the case 2 fit. You can use them in the housing below and next to the first spring clamp 6 be attached. Thus, two separate output terminals for the connection of each of a drain conductor are realized with large cross-section, without the housing must be made wider.

LIST OF REFERENCE NUMBERS

1

Service switching device

1'

Service switching device

2

casing

3

rear front

4

narrow side

4 '

narrow side

4a

narrow side

4a '

narrow side

5

Terminal chamber

6

first terminal, spring-cage type; first output terminal

6 '

first terminal, spring-cage type; first output terminal

6a

access terminal

6a '

access terminal

7

second terminal, type screw terminal; second output terminal

7 '

second terminal, type screw terminal; second output terminal

8th

second connection terminal, type spring plug-in terminal; second output terminal

9

connecting conductors

10

first terminal connection opening

11

first clamping spring

12

first spring action lever

13

first clamping strip

14

support part

15

contact leg

16

clamping leg

17

spring back

18

second terminal insertion opening

19

second clamping strip

20

first clamping frame

20 '

second clamping frame

21

clamping screw

22

shifter

22 '

shifter

23

second clamping spring

24

second clamping leg

25

fastening leg

26

elbow

27

first end of the second clamping frame

28

free spring end

29

End of the recess

30

second spring action lever

31

Main current path

32

Main contact point

33

Blowing coil, magnetic release

34

In addition to current path

35

striker

36

Besides current resistance

37

Besides contact point

38

derailleur

39

mounting side

39 '

mounting side

40

Busbar,

41

conductor rail

42

clamp assembly

42 '

clamp assembly

43

depository

44

Actuating extension

45

L-shaped extension part

46

bearing axle

47

Actuating extension

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102008017472 A1 [0012]
• DE 102008017738 A1 [0054, 0056]

Claims (11)

Installation switching device ( 1 . 1' ), which is a housing ( 2 ) with a front side ( 3 ), a narrow side ( 4 ) and on the narrow side ( 4 ) a terminal connection space ( 5 ), characterized in that in the terminal connection space ( 5 ) two terminals ( 6 . 7 . 8th ) different terminal type for connecting two connection conductors ( 9 ) are housed. Installation switching device ( 1 . 1' ) according to claim 1, characterized in that the terminal connection space ( 5 ) a first terminal insertion opening ( 10 ), one in the terminal compartment ( 5 ) of the housing ( 2 ) fixed in position first connection terminal ( 6 ) of the screwless spring-type terminal type for the connection of a first connecting conductor, with a first clamping spring ( 11 ) and one from outside the housing ( 2 ) and with the housing ( 2 ) pivotally connected first spring actuation lever ( 12 ), with a first clamping strip ( 13 ) comprehensive carrier part ( 14 ), wherein the first clamping spring ( 11 ) a plant leg ( 15 ), a clamping leg ( 16 ) with a clamping edge comprising a clamping edge and a system and clamping leg ( 15 . 16 ) connecting curved spring back ( 17 ), and wherein the first clamping spring ( 11 ) with the first clamping strip ( 13 ) cooperates so that a through the first terminal insertion ( 10 ) inserted first terminal conductor between the back of the first terminal strip ( 13 ) and the clamping edge of the clamping window is clamped, and wherein in the terminal connection space ( 5 ) a second terminal insertion opening ( 18 ) is present and the carrier part ( 14 ) a second clamping strip ( 19 ), with which a clamping frame ( 20 . 20 ' ) a second terminal ( 7 . 8th ) of a different type is connected for connection of a through the second terminal insertion opening ( 18 ) second connection conductor ( 9 ). Installation switching device ( 1 . 1' ) according to claim 2, characterized in that the first and the second terminal insertion opening ( 10 . 18 ) on a narrow side ( 4 ) and from the front ( 3 ) are arranged one behind the other as seen. Installation switching device ( 1 ) according to claim 3, characterized in that the second terminal ( 7 ) is of the type of a screw terminal. Installation switching device ( 1 ) according to claim 4, characterized in that the second terminal ( 7 ) a clamping screw ( 21 ) and a first clamping frame ( 20 ), wherein the second connection conductor between the first clamping frame ( 20 ) and the second clamping strip ( 19 ) by means of the clamping screw ( 30 ) is clamped. Installation switching device ( 1 ) according to claim 3, characterized in that the second terminal ( 8th ) is of the type of a spring plug terminal. Installation switching device ( 1 ) according to claim 6, characterized in that the spring plug terminal ( 8th ) a U- or Ω-shaped second clamping spring ( 23 ) with a second clamping leg ( 24 ), a mounting leg ( 25 ) and a second clamping leg ( 24 ) with the attachment leg ( 25 ) connecting sheet piece ( 26 ), and a second clamping frame ( 20 ' ), which has a recess for receiving a second connecting conductor ( 9 ), wherein the mounting leg ( 25 ) with a first end ( 27 ) of the second clamping frame ( 20 ' ), and the free spring end ( 28 ) of the second clamping leg ( 24 ) with a second connecting conductor ( 9 ) interacting with it. Installation switching device ( 1 ) according to claim 7, characterized in that the second clamping strip ( 19 ) with its longitudinal extension direction on the second terminal insertion opening ( 18 ) and that the second clamping frame ( 20 ' ) with one end ( 29 ) of the recess on the second clamping strip ( 19 ), wherein the free spring end ( 28 ) of the second clamping leg ( 24 ) with the second, introduced into the recess, connecting conductor ( 9 ) this on the second clamping strip ( 19 ) cooperating. Installation switching device ( 1 ) according to claim 8, characterized in that the second clamping frame ( 20 ' ) with its longitudinal direction perpendicular to the direction of longitudinal extension of the second clamping strip ( 19 ) is oriented. Installation switching device ( 1 ) according to claim 7, characterized in that one from outside the housing ( 2 ) and with the housing ( 2 ) pivotally connected second spring actuation lever ( 30 ) for actuating the spring plug terminal ( 8th ) is available. Installation switching device ( 1 ) according to claim 10, characterized in that the pivoting direction of the second spring actuating lever ( 30 ) when opening the spring plug terminal ( 8th ) from the narrow side ( 4 ) out towards the interior of the housing ( 2 ) is oriented.

Images