EP2911176A1 - Auxiliary switch with test button - Google Patents

Abstract

The invention relates to an auxiliary switch (10) for mounting on a circuit breaker (21), with an auxiliary contact apparatus having at least one auxiliary contact point (16). The auxiliary switch (10) is formed with a slider assembly (28) having a circuit breaker side coupling point for coupling to a contactor of the circuit breaker (21) and a Hilfsskontaktatseitseit coupling point has to be coupled to the auxiliary contact apparatus. The slider assembly (28) is formed with an outer slider (29) which can assume an outer slider switch-on position and an outer slide switch-off position, and with an inner slider (30), which can take an inner slider switch-on position and an inner slide switch-off, and a Slider coupling arrangement for coupling the outer slide (29) with the inner slide (30), wherein the circuit breaker side coupling point on the outer slide and the auxiliary contact side coupling point on the inner slide (30) are formed. The auxiliary switch (10) is formed with a test button (37) which is coupled to the inner slide (30) for simulating a switch-off position of the contact apparatus of the circuit breaker (21) when the circuit breaker (21). When held in its outer slide switch-on position outer slide (29) of the inner slide (30) under the action of the test button (37) from the inner slide switch-on in the inner slide switch-off position to form a the inner slide (30) in the direction of the inner slide Switch-on position acting on restoring force.

Description

The invention relates to an auxiliary switch for attachment to a circuit breaker, with an auxiliary contact apparatus with at least one auxiliary contact point.

An auxiliary switch is used to open and / or close auxiliary circuits, by means of the auxiliary circuits of the switching state of the main contacts of a circuit breaker to which the auxiliary switch is attached, is transmitted uniquely. The auxiliary circuit is galvanically isolated from the main circuit.

A circuit breaker may for example be designed as a selective main line circuit breaker. A selective main circuit breaker, also referred to as SH switch for short, is used in an electricity meter system in front of the meter in the meter box of a domestic electrical installation installation, and thus in front of the installation distributor of a domestic installation. Its purpose is the selective shutdown of the power supply to all downstream circuits in the event of a short circuit in one of the downstream circuits. Selective shutdown means time-delayed shutdown. An SH-switch is provided with a time delay, whereby it does not switch off immediately in a short-circuit current in one of the downstream circuits, but only after a certain delay time. Within the delay time, the circuit breaker of that subordinate circuit in which the short circuit has occurred has the chance to shut off the short circuit itself. If this succeeds, the SH switch does not switch and the supply of the remaining, non-faulty circuits remains unaffected. Only if the short-circuit current is still present after the end of the delay time does the SH switch interrupt the power supply to the counter and thus to all downstream circuits.

In the case of a voltage-independent SH switch, the selectivity is achieved by first bypassing the current when a short-circuit current occurs by opening a so-called main contact point in the current path from the main current path to a parallel secondary current path and limiting it by a so-called selective resistance. Between the input and output terminals now flows a limited short-circuit current. In the secondary flow path is a time-delayed interruption element, usually a bimetallic strip, often called a selective bimetal. After the delay time, this bends so far that a coupling with a trigger element of a switching mechanism is effected, thereby releasing a latch in the switching mechanism, thereby permanently opening a so-called secondary contact point, thereby completely completing the current path between the input and output terminals is interrupted.

In addition, in the main current path is still the main bimetal, a trigger with a long delay, which in a known manner upon occurrence of a long time applied overload current in the main current path so far auszubiegt that also a coupling with the trigger element of the switching mechanism is effected, causing in the latch released the latch and thereby also the secondary contact is permanently opened, which then the current path between the input and output terminals is completely interrupted.

A selective main circuit breaker thus has a contactor with two contact points, a main contact point and a secondary contact point.

Such a SH switch is for example from the DE 102 61 994 A1 known and its functional scheme described there.

In an auxiliary switch, which is suitable for mounting on a selective main circuit breaker to display and transmit the switching state of the selective main line circuit breaker, it is not necessary to be able to switch the auxiliary switch itself, it should only map the switching position of the selective main line circuit breaker.

An auxiliary switch for attachment to a circuit breaker having a contactor with two contact points, shows the EP 0949646 A2 , This shows an auxiliary switch to indicate the switching state of a circuit breaker type Pol + N, with a movable contact, with a mechanical switching mechanism, an actuation, coupling and display device and with a test mechanism. That in the auxiliary switch the EP 0946646 A2 shown derailleur includes a complicated lever assembly with four different levers, which are each acted upon by a spring. This makes the construction of the auxiliary switch complicated, too complicated to use with a selective main circuit breaker. A Simplification of in the EP 0949646 A2 derailleur shown by removing the actuating mechanism while maintaining the coupling and display device and the test mechanism is not possible because all four mechanisms in the in the EP 094946 A2 necessarily appear to play together. Removing one of the four mechanisms makes the overall arrangement no longer work.

It is therefore an object of the present invention to provide an auxiliary switch which is simple in construction, easy to assemble and, without unnecessary additional functions, is capable of indicating the switching position of a selective main line circuit breaker and which is equipped with a test function which provides it allows to simulate the deactivation of the selective main line circuit breaker when the selective main circuit breaker in the auxiliary switch.

The object is achieved by an auxiliary switch according to claim 1.

Further advantageous embodiments of the invention can be found in the dependent claims.

According to the invention, the auxiliary switch is formed with a slider assembly having a circuit breaker side coupling point for coupling with a contactor of the circuit breaker and a Hilfsskontaktapparatseitige coupling point has to be coupled to the Hilfskontaktapparat, wherein the slide assembly is formed with an outer slide having an outer slide switch-on position and an outer slide And a slider-coupling arrangement for coupling the outer slide with the inner slide, the circuit breaker side coupling point on the outer slide and the auxiliary contact side coupling point on the inner slide are formed, wherein the auxiliary switch is formed with a test button which is coupled to the inner slider for simulating a switch-off position of the contact apparatus of the circuit breaker when the circuit breaker is switched on, wherein, when the outer slide is held in its outer slide switch-on position, the inner slide is displaced under the action of the test button from the inner slide switch-on in the inner slide switch-off to form a the inner slide towards the Innenschieber- on position towards acting restoring force.

According to the invention, a two-slide system is proposed, which includes an outer slide with coupling to the Selective main circuit breaker and an inner slide for moving the contacts and simulation of the switching position. By coupling the outer slide to the Selective main circuit breaker, the movement of the Selective main circuit breaker is transmitted via the coupling arrangement also on the inner slide. The two-slider system is a very simple and easy to implement and install construction. Also new and advantageous is the function of the test button realized according to the invention. In the test function, when the Selective Main Circuit Breaker is activated, by pressing the auxiliary switch test button, it is possible to simulate the disconnection of the Selective Main Circuit Breaker without activating the Selective Main Circuit Breaker itself.

According to an advantageous embodiment of the invention, the auxiliary contact apparatus is formed with two changeover contacts, and on the inner slide two auxiliary contact point coupling points are formed. The auxiliary switch is formed in an advantageous embodiment with two changeover contacts, which indicate the contact position of the Selective main switch.

The auxiliary switch can be coupled in an advantageous embodiment via a coupling axis with a pull tab of the switching mechanism of the Selective main circuit breaker.

According to an advantageous embodiment, the slider-coupling arrangement comprises a spring element mounted between the outer and the inner slider, which generates the restoring force.

In the on position of the Selective main circuit breaker can be moved upwards pressing the test button, the inner slide, wherein he compresses the spring element and brings the two contacts of the auxiliary contact apparatus in the other contact position. After releasing the test button brings the restoring spring force of the spring element, the inner slide back to its original position. The restoring spring force of the spring element is greater than the switching force of the two contacts.

According to an advantageous embodiment of the invention, the test button is with a Switch position display formed.

According to an advantageous embodiment of the invention, the test button is formed with an actuating groove for a tool.

According to an advantageous embodiment of the invention, the outer slide and the inner slide are each formed with a longitudinally extended body, which are arranged and held longitudinally displaceable against each other in a longitudinally displaceable manner.

According to an advantageous embodiment of the invention, the outer slide and the inner slide with the slide coupling arrangement can be executed as a preassembled module and used in the auxiliary switch.

Reference to the drawings, in which two embodiments of the invention are shown, the invention and further advantageous refinements and improvements and further advantages of the invention will be explained and described in more detail below.

Fig. 1

schematisch eine erste Ausführungsform eines erfindungsgemäßen Zwei-Schiebersystems mit einer Hilfskontaktstelle und einer Test-Taste, wobei sich der Leitungsschutzschalter und der Hilfsschalter in der Einschaltstellung befinden;

Fig. 2

schematisch eine erste Ausführungsform eines erfindungsgemäßen Zwei-Schiebersystems mit einer Hilfskontaktstelle und einer Test-Taste, wobei sich der Leitungsschutzschalter und der Hilfsschalter in der Ausschaltstellung befinden;

Fig. 3

schematisch eine erste Ausführungsform eines erfindungsgemäßen Zwei-Schiebersystems mit einer Hilfskontaktstelle und einer Test-Taste, wobei sich der Leitungsschutzschalter in der Einschaltstellung und der Hilfsschalter in der Ausschaltstellung befinden, und die Test-Taste betätigt ist;

Fig. 4

schematisch einen erfindungsgemäßen Hilfsschalter mit einem erfindungsgemäßen Zwei-Schiebersystem in einer zweiten Ausführungsform mit zwei Hilfskontaktstellen und einer Test-Taste, wobei Außenschieber und Innenschieber sich in der Einschaltstellung befinden;

Fig. 5

schematisch einen erfindungsgemäßen Hilfsschalter mit einem erfindungsgemäßen Zwei-Schiebersystem in einer zweiten Ausführungsform mit zwei Hilfskontaktstellen und einer Test-Taste, wobei Außenschieber und Innenschieber sich in der Ausschaltstellung befinden;

Fig. 6

schematisch einen erfindungsgemäßen Hilfsschalter mit einem erfindungsgemäßen Zwei-Schiebersystem in einer zweiten Ausführungsform mit zwei Hilfskontaktstellen und einer Test-Taste, wobei der Außenschieber sich in der Einschaltstellung und der Innenschieber sich in der Ausschaltstellung befinden, und die Test-Taste betätigt ist;

Fig. 7

zwei Ansichten aus unterschiedlichen Blickwinkeln auf eine erfindungsgemäße Test-Taste;

Fig. 8

zwei Ansichten aus unterschiedlichen Blickwinkeln auf einen erfindungsgemäßen Außenschieber;

Fig. 9

zwei Ansichten aus unterschiedlichen Blickwinkeln auf einen erfindungsgemäßen Innenschieber;

Fig. 10

a) und b) zwei Ansichten aus unterschiedlichen Blickwinkeln auf einen erfindungsgemäßen Außen- und Innenschieber kurz vor dem Zusammenfügen, und c) eine Ansicht auf die Baugruppe aus den zusammengefügten Außen- und Innenschieber beim Einsetzen des Federelementes.

Show it:

Fig. 1

schematically a first embodiment of a two-slider system according to the invention with an auxiliary contact point and a test button, wherein the circuit breaker and the auxiliary switch are in the closed position;

Fig. 2

schematically a first embodiment of a two-slider system according to the invention with an auxiliary contact point and a test button, with the circuit breaker and the auxiliary switch are in the off position;

Fig. 3

schematically a first embodiment of a two-slider system according to the invention with an auxiliary contact point and a test button, with the circuit breaker in the closed position and the auxiliary switch in the off position, and the test button is pressed;

Fig. 4

schematically an auxiliary switch according to the invention with a two-slider system according to the invention in a second embodiment with two auxiliary contact points and a test button, the outer slide and inner slide are in the closed position;

Fig. 5

schematically an auxiliary switch according to the invention with a two-slide system according to the invention in a second embodiment with two auxiliary contact points and a test button, the outer slide and inner slide are in the off position;

Fig. 6

schematically an auxiliary switch according to the invention with a two-slider system according to the invention in a second embodiment with two auxiliary contact points and a test button, the outer slide are in the closed position and the inner slide in the off position, and the test button is pressed;

Fig. 7

two views from different angles on a test button according to the invention;

Fig. 8

two views from different angles on an external slide according to the invention;

Fig. 9

two views from different angles on an internal slide according to the invention;

Fig. 10

a) and b) two views from different angles on an outer and inner slide according to the invention just before assembly, and c) a view of the assembly of the assembled outer and inner slide at the onset of the spring element.

The FIG. 1 schematically shows an auxiliary switch 10 in a first embodiment. The auxiliary switch 10 has an insulating housing 11, with a front side 12, one of the front side opposite mounting side 13 and a right and a left narrow side 14, 15. Inside an auxiliary contact point 16 is shown, in the form of a changeover contact. The auxiliary contact point 16 forms the contact apparatus of the auxiliary switch 10. The changeover contact is formed with a first and a second fixed contact piece 17, 18 and with a movable contact piece 19 which is located at the end of a pivotally mounted contact carrier 20. In the FIGS. 1 to 3 is shown purely by way of example only one formed as a changeover contact auxiliary contact point, just as it could be two or more auxiliary contact points.

The auxiliary switch is to indicate with the auxiliary contact point 16, the contact position of a selective main line circuit breaker 21, to which it is attached. The selective main circuit breaker 21 is in the Figures 1-3 also only very schematically and exemplified. One recognizes a stylized housing 22 in which a stylized illustrated rear derailleur 23 is located. The selective circuit breaker 21 has a contactor, not shown here, comprising a main contact point and a sub contact point. The contact apparatus of the selective main circuit breaker 21 is switched by means of the switching mechanism 23. The rear derailleur 23 has a pull tab (not shown).

In the schematic and exemplary representation of the FIGS. 1 to 3 the auxiliary switch 10 is shown as queued with its narrow side 15 to a narrow side of the selective main circuit breaker 21. This is an abstraction chosen for the purpose of reduction to the essential. In real combinations of a selective main circuit breaker and an auxiliary switch, the two devices are almost always strung together on their broadsides.

The auxiliary switch 10 is coupled via a coupling axis 24 with the pull tab of the derailleur 23 of the selective main line circuit breaker 21. Since the derailleur 23 cooperates with the contactor of the selective main circuit breaker 21, thus the auxiliary switch 10 is also coupled to the contactor of the selective main line circuit breaker. The coupling is indicated by a dashed operative connection line 25. The attachment point of the coupling axis 24 on the outer slide 29 functionally represents a circuit breaker side coupling point of the slider assembly 28. A real design is familiar to the expert and will not be explained in detail here.

The coupling axis 24 projects laterally out of the auxiliary switch 10 at an elongate passage opening 26. The housing 22 of the selective main line circuit breaker 21 has correspondingly a receiving opening 27th

When the switching state of the selective main circuit breaker 21 changes, the pull tab of its derailleur 23 moves in the direction of the double arrow P1, either from bottom to top or from top to bottom, and accordingly also the coupling axis 24 in the direction of the double arrow P1, either of down to the top or from top to bottom, taken. In the FIG. 1 the switching position is shown in which the selective main circuit breaker 21 is turned on. The coupling axis 24 is located at the lower end of the elongated passage opening 26th

The changeover switch of the auxiliary contact point 16 is located in FIG. 1 in a first stable position, that is a position in which the movable contact piece 19 is in contact with the first fixed contact piece 17. This is also shown as an example only. This position of the formed as a changeover switch auxiliary contact point 16 thus forms the switching position "on" of the selective main line circuit breaker 21 from.

When the switching state of the selective main circuit breaker 21 changes to "off", see Fig. 2 If the changeover switch of the auxiliary contact point 16 moves into its second stable position, the position of the auxiliary contact point 16 designed as a changeover switch changes accordingly, so that then the movable contact piece 19 is in contact with the second fixed contact piece 18.

In order to convert the movement of the coupling axis 24 in a pivoting movement of the contact carrier 20, the auxiliary switch 10 is formed with a two-slider system 28.

The two-slider system 28 includes an outer slide 29 and an inner slide 30. Both are elongate members. They can consist of a plastic material and be manufactured by injection molding. On the outer slide 29, the coupling axis 24 is attached. The outer slide 29 is the portion of the two-slider system 28, which implements the coupling to the selective main line circuit breaker 21 and is coupled to the switching mechanism of the selective main line circuit breaker 21.

The inner slide 30 is mechanically coupled to the contact carrier 20 of the changeover switch 16, shown schematically and abstracted by the dashed operative connecting line 31. The point of action of the operative connection 31 on the inner slide 30 is the auxiliary contact device side coupling point of the slide assembly 28th

The outer slide 29 and the inner slide 30 are designed and guided so that they can slide .parallel to each other sliding, indicated by the parallel double arrows P2 and P3.

The principal function is the following. When the switching state of the selective main circuit breaker 21 from the on position after FIG. 1 in the off position after FIG. 2 changes, is pressed due to the coupling on the coupling axis 24 of the outer slide 29 in the direction of arrow P2 upwards, in the outer slide-off position, see FIG. 2 ,

Between the outer slide 29 and the inner slide 30, a frictional coupling is realized, such that the outer slide 29 takes on an upward movement, out of the auxiliary switch-on position in the auxiliary switch off position, the inner slide 30 by a similar distance. This is represented by the arrow P3 in the upward direction.

The realization of the coupling is in the Figures 1 - 3 indicated schematically and abstracted by a first web 32 which projects from the outer slide 29 and the inner slide 30 faces, and a second web 33 which projects from the inner slide 30 and the outer slide 29 faces. The first web 32 is disposed below the second web. As a result, the first web 32 also pushes up the inner slide 30 during an upward movement of the outer slide 29. Other concrete embodiments of this coupling function can be found by those skilled in the art due to his expertise.

At the opposite end, a cylindrical spring 34 is mounted between the outer slide 29 and the inner slide 30. This is supported at the upper end of the outer slide on a third web 35 and on a vebundenen with the inner slide 30 fourth web 36 which is disposed below the third web 35 from. At the transition from the closed position of the outer slide 29 to Fig. 1 to the switch-off position of the outer slide after FIG. 2 does not change the distance between the third web 35 and the fourth web 36, the cylinder spring 34 is not compressed.

The first and second web 32, 33 and the cylinder spring 34 with the third and fourth web 35, 36 forms an example here together a slide coupling arrangement.

When the inner slider 30 is pushed upward, the coupling with the contact carrier along the operative connection 31 ensures that the contact carrier 20 is made from its first stable position in which the contact between the movable contact piece 19 and the first fixed contact piece 17 is made, in its second stable position in which the contact between the movable contact piece 19 and the second fixed contact piece 18 made passes.

The inner slider 30 is coupled at its upper free end with a test button 37. The test button 37 has the shape of a double-armed lever, which is fixed to the housing at a bearing 38 and pivotally mounted. A first arm 39 of the test button 37 is formed at its free end with a slot 40. The inner slider 30 carries at its upper free end a cam-like protruding pin 41, which is guided in the slot 40 in engagement standing.

The second arm 42 of the test button 37 has a control and display surface 43. The test button 37 is mounted near the front 12. The control and display surface 43 is visible and operable through a recess 44 in the front side 12, it is more or less flush with the front side 12 from. On the control and display surface 43, a marker 45 is attached. This is clearly visible from the outside through the recess 44 and serves as a position indicator of the test button.

When the inner slider 30 is pushed up, the coupling of the pin 41 with the slot 40 causes the first arm 39 of the test button to be pivoted counterclockwise upwards, and thus the second arm 42 of the test button 37 is pivoted down. FIG. 2 shows this position. The marker 45 is now pivoted into the housing interior. Depending on how the marker is executed, it will no longer be visible or another part of the marker, which may be in a different color, will be visible. In any event, pivoting the second arm 42 outwardly indicates that the auxiliary contact point 16 is in its second stable position in which contact between the movable contact piece 19 and the second fixed contact piece 18 is established.

When the selective main circuit breaker then goes back to its on position, is in accordance with in reverse order, from FIG. 2 to FIG. 1 out, the outer slide 29 forced down. Now he presses by means of the coupling via the cylinder spring 34, the inner slide 30 down again, and this brings about its coupling according to the action line 31, the auxiliary contact point 16 again in the first stable position in which the contact between the movable contact piece 19 and the first solid contact piece 17 is made. The cylinder spring 34 is designed so that its spring force due to its spring stiffness is greater than the switching force that must be applied to the contact carrier to switch it. The control and display surface 43 now appears again in the viewing window formed by the recess 44 and thus indicates that the auxiliary contact point 16 again in the first stable position in which the contact between the movable contact piece 19 and the first fixed contact piece 17 is located.

In the FIG. 3 is the test function illustrates how it can be realized according to the invention with the test button in the on state of the selective main circuit breaker. In this position, the outer slide 29 is held on the coupling axis 24 down in the closed position of the auxiliary switch. If you press now from the outside on the control and display surface 43 of the test button 37, then you swung the test button 37 forcibly counterclockwise. Due to the coupling of the pin 41 with the slot 40, the first arm 39 of the test button 37 pulls the inner slider 30 upward, the auxiliary contact point 16 goes into the off position, as in connection with FIG. 2 described above.

Since the outer slide is held and therefore can not move upwards, a relative displacement of the inner slide 30 to the outer slide 29 takes place. The distance between the third web 35 and the fourth web 36 decreases. As a result, the cylinder spring 34 is compressed, forming a restoring force.

As a result of the pressure on the operating and display surface of the test button, a switch-off in the auxiliary switch 10 was simulated when the selective main circuit breaker was switched on. This can be done for verification purposes.

A fixed housing stop 46 limits the maximum pivoting range of the test button, which is advantageous in order to avoid damage to the described mechanism due to further pivoting.

If you let go of the test button 37, so the restoring force of the cylinder spring 34 ensures that the inner slider is pushed back into its closed position. Since the spring force of the cylinder spring 34 is greater than the switching force required for switching the contact carrier, thus also reaches the auxiliary contact point again in their closed position, according to the in the FIG. 1 shown location.

The operation of the test button 37 can be done by hand, with the finger, or by means of a tool. For this purpose, an actuation groove can still be provided on the operating and display surface 43, as an attachment point for an actuation tool, for example a screwdriver.

The basic idea and the basic mode of operation of the present invention was based on the Figures 1 - 3 explained schematically and partially highly abstracting. The FIGS. 4 to 6 show a further possible concrete embodiment of an auxiliary switch 10 'according to the invention. The same or similar and equivalent components or elements are denoted by the same reference numerals as in the FIGS. 1 to 3 , supplemented by a superscript comma. It corresponds to the in the FIG. 4 shown situation of those according to FIG. 1 . FIG. 5 corresponds to FIG. 2 and FIG. 6 corresponds to FIG. 3 ,

The most striking difference in the embodiment according to the FIGS. 4 to 6 opposite to the schematic in the FIGS. 1 to 3 is that in the embodiment according to the FIGS. 4 to 6 Each has a pivotally mounted contact carrier 20 ', 20 "with a movable contact piece 19', 19", which in two stable positions between a first fixed and a second fixed Contact piece 17 ', 17 "or 18', 18" can be switched.

The two-slider system 28 'is arranged in the interior of the auxiliary switch housing extending obliquely from bottom left to top right. Thus, one auxiliary contact point 16 'is to the right of the two-slider system 28', and the second auxiliary contact point 16 "is to the left of the two-slider system 28 '.

Each of the contact carriers 20 ', 20 "is constructed in the structure of a fixed to a pivot axis and pivotally mounted double-armed lever, with a longer arm, which carries the movable contact piece 19', 19", and with a shorter second arm, which at active junctions 31st ', 31 "is non-positively coupled to the inner slide 30'.

The outer slide 29 'carries an approximately triangular shaped Anformung 48 which is mounted projecting to the left. The free end of this Anformung forms the circuit breaker side coupling point of the two-slider system 28 '. There, the coupling axis 24 'is attached. It protrudes here, as is customary, projecting perpendicular to the broad side of the housing, in the representation of the FIGS. 4 to 6 this is perpendicular to the drawing plane. It can be seen running as a slot hole 26 '.

At the control and display surface 43 'of the test button 37' here is still a groove 47 attached as attachment point for an operating tool, such as a screwdriver.

The test key 37 'is more specifically in the FIG. 7 shown. The outer slide 29 'is in detail in the FIG. 8 shown, and the inner slide 30 'in the FIG. 9 , The FIG. 10 shows how the inner slider 30 'inserted into the outer slide 29' and then the cylinder spring 34 'is inserted. The outer slide 29 'has a trough-shaped edge boundary with an overlapping guide strip. As in the inner slider 30 'is inserted and moved so far until the cylinder spring 34' in the receiving space between the two webs 35 'on the outer slide 29' and 36 'on the inner slider 30' can be used. The so captive preassembled module can then be easily inserted into the auxiliary switch at the intended location. <U> REFERENCE LIST </ u> 10 auxiliary switch 24 ' coupling axis 10 ' auxiliary switch 25 Operatively connected line 11 Insulated 26 Through opening 11 ' Insulated 26 ' Through opening 12 front 27 receiving opening 12 ' front 28 Two-slide system 13 mounting side 28 ' Two-slide system 13 ' mounting side 29 Outdoor slide 14 Narrow side right 29 ' Outdoor slide 14 ' Narrow side right 30 Indoor slide 15 Narrow side left 30 ' Indoor slide 16 Auxiliary contact point 31 Operatively connected line 16 ' first auxiliary contact point 31 ' Active junction 16 " second auxiliary contact point 31 " Active junction 17 first fixed contact piece 32 first jetty 17 ' first fixed contact piece 33 second bridge 17 " first fixed contact piece 34 cylinder spring 18 second fixed contact piece 35 third jetty 18 ' second fixed contact piece 35 ' third jetty 18 " second fixed contact piece 36 fourth bridge 19 movable contact piece 36 ' fourth bridge 19 ' movable contact piece 37 Test button 19 " movable contact piece 37 ' Test button 20 contact support 38 depository 20 ' contact support 38 ' depository 20 " contact support 39 first arm 21 selective main circuit breaker 39 ' first arm 40 Long hole 22 Housing of the selective main circuit breaker 40 ' Long hole 41 spigot 23 derailleur 41 ' spigot 24 coupling axis 42 second arm 42 ' second arm 43 Operating and display area 44 recess 45 mark 45 ' mark 46 attack 47 groove 48 conformation

Claims (7)

Auxiliary switch (10) for mounting on a circuit breaker (21), with an auxiliary contact apparatus having at least one auxiliary contact point (16),
characterized in that the auxiliary switch (10) is formed with a slide assembly (28) having a circuit breaker side coupling point for coupling with a contactor of the circuit breaker (21) and a Hilfsskontaktatseitseitige coupling point has for coupling to the auxiliary contact apparatus that the slide assembly (28) formed with an outer slide (29), which can assume an external slide switch-on position and an external slide switch-off position, and with an inner slide (30), which can assume an inner slide switch-on position and an inner slide switch-off position, and a slide coupling arrangement for coupling the outer slide (29) with the inner slide (30), wherein the circuit breaker side coupling point on the outer slide and the Hilfsskontaktatseitige coupling point on the inner slide (30) are formed, that the auxiliary switch (10) with a test button (37) is formed, which is coupled with the inside sliding r (30) for simulating a switch-off position of the contact apparatus of the circuit breaker (21) when the circuit breaker (21), that held in its outer slide switch-on outer slide (29) of the inner slide (30) under the action of the test button (37) from the Internal slide switch-on position in the InnenschieberSusschaltstellung is displaced to form a the inner slide (30) in the direction of the inner slide switch-on acting restoring force. Auxiliary switch (10) according to claim 1, characterized in that the auxiliary contact apparatus is formed with two changeover contacts, and that on the inner slide (30) has two auxiliary contact-side coupling points are formed. Auxiliary switch (10) according to claim 1, characterized in that the slide-coupling arrangement comprises a between the outer (29) - and the inner slider (30) mounted spring element (34) which generates the restoring force. Auxiliary switch (10) according to claim 1, characterized in that the test button (37) is formed with a switch position indicator . Auxiliary switch (10) according to claim 4, characterized in that the test button (37) is formed with an actuating groove for a tool. Auxiliary switch (10) according to claim 1, characterized in that the outer slide (29) and the inner slide (30) are each formed with a longitudinally extended body, which are longitudinally displaceable against each other and arranged longitudinally displaceable. Auxiliary switch (10) according to claim 6, characterized in that the outer slide (29) and the inner slide (30) with the slide coupling arrangement as a preassembled module executable and in the auxiliary switch (10) can be used.

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