EP0990280B1 - Protective connector for a telecommunications device - Google Patents

Abstract

A protective connector (10) for a telecommunications device has a housing (12) and several contacts (14, 16) which when fitted, tap (18) the contacts of the telecommunications device or are connected to earth. Said contacts (14, 16, 18) are essentially configured as strip-shaped sheet elements which each have at least one terminal slot, and are arranged so that they are parallel to each other, at least in sections. The protective connector also has at least one wired component (22, 24, 26) on which wires are configured. One wire (28, 30, 32, 34) of each wired component (22, 24, 26) is clamped into the terminal slot so that the wired component (22, 24, 26) is directly electroconductively connected to the contact (14, 16, 18). All of the wired components (22, 24, 26) are located between the contacts (14, 16) which tap the contacts of the telecommunications device.

Description

Technical field

The invention relates to a protective plug for a Establishment of telecommunications technology according to the Preamble of claim 1.

For the protection of electronic components and devices with mostly bar-shaped or block-shaped Connections of telecommunications technology connected against excessive electrical currents and / or overvoltage Protective plugs are usually used, which are connected to a open side of the housing of the connection device on or can be inserted and the components required for protection exhibit. The protective plugs are usually for protection of a twin wire. This means, that they pair the adjacent contacts of the tap incoming and outgoing side and with the Connect protective components electrically.

State of the art

A protective plug according to the preamble of claim 1 is over. known from EP 0 405 337 A2 and has a housing, several tapping contacts, one earth contact and several wired components. The contacts are as strip-shaped sheet metal elements formed in the Clamping slot one wire each of the wired component is jammed. The wired components are above the Contacts arranged so that the known protective plug has a comparatively large overall height.

In the protective plug according to DE 39 09 783 C1 are the Tapping contacts formed on a circuit board, which in attached condition between the contact tabs of the as Isolating contacts trained contacts of the associated Terminal block is inserted. The conductor track grabs the Incoming and outgoing contacts from time to time conducts the current via wired protective components that are connected to the PCB are soldered. Already using one PCB for tapping the contacts of the Connection device is disadvantageous because a circuit board is always subject to the risk that the individual layers separate from each other. It also means one considerable manufacturing effort, the individual wired Solder components to the circuit board. Finally these extend largely perpendicular to the PCB. They are located on the top of the circuit board and cause this known protective plug comparatively large housing needed. This means in that Area of the terminal block above the contacts considerable space requirement.

The protective plug known from EP 0 471 167 A1 a three-pole surge arrester that is not wired is, via an intermediate sheet metal part with a PCB connected. This can result in use of an unwired surge arrester Space requirements can be reduced. This well-known protective plug is due to the manufacturing costs the need for a circuit board is still disadvantageous.

From DE 38 13 889 C1 there is no protective plug wired protective components known in which the electrodes of the protective components are connected to contacts, which tap the contacts of the terminal block. The one shown Arrangement is for the use of wired components not suitable.

DE 31 13 759 C2 shows one Surge arrester device for isolating strips in which wired surge arresters via so-called Clamp sensors are connected to tapping contacts. Even though no printed circuit board used in this known arrangement is due to the required interconnection of clamps in economic terms in need of improvement.

Finally, US 4,113,340 discloses a protective device with a housing and a wired protective component / that is arranged between tapping contacts by multiple Bends through 180 ° are extremely complicated. About that further extend in this embodiment Tapping contacts not outside the housing, but the Protective device shown is intended for above contacts of an establishment of the Telecommunications technology to be applied.

Presentation of the invention

The invention has for its object a protective plug for a facility of telecommunications technology too create that simple and with little effort is producible and at the same time a reliable one Protection for those components and devices can be achieved can, the one with the protective plug Connection device are connected downstream.

This object is achieved by the claim 1 described protective plug.

The tapping the contacts of the connection device Contacts of the protective plug are considered largely strip-shaped sheet metal elements. These point each have at least one clamping or contact slot, in a wire of a wired component is clamped in each case is. As a result, the wired component is immediate electrically conductive to the contact of the protective plug connected. In other words, for the connection between the contacts of the connection device and in the Protective components included in protective plugs none PCB required. Rather, the protective plug has the described strip-shaped and therefore simple designed sheet metal elements as tapping contacts, in their Clamping slots each directly the wires of the used wired protective components are jammed. So are also the clamps known in the prior art or other connecting elements between the tapping contacts and the protective components can be dispensed with. This is the Overall protective plug according to the invention extremely simple built up from a few and simply designed Parts assembled. The arrangement according to the invention also has the consequence that the protective plug with regard its dimensions can be made extremely small, so that the space requirement in the state that the plug on the The telecommunications technology is plugged in, is low.

The use of strip-shaped sheet metal elements as Tapping contacts compared to the conventional used circuit boards the main advantage that the current-carrying contacts can be massively formed. A massive design of this ladder, i.e. the facility of a certain line cross section, is for the management of the occurring currents required. On the previously used Printed circuit boards can make the contact tracks from technical Reasons only comparatively thin, so that the current-carrying cross section is hereby greatly limited. By using strip-shaped sheet metal elements with which the wires of the wired components directly are electrically connected, there is a advantageous solid execution of this ladder.

Otherwise, the protective plug according to the invention is not open limited an embodiment that the protection of electronic components and devices is used by means of a single, specific twin wire to a connection device are connected. Rather, with the previous one described structure also a so-called multi-core Protective plug to be carried out with those components is equipped for the protection of electronic devices or components that are required over several different pairs with the protective plug providing connecting device are connected. In this The protective plug could be due to the inclusion of the case Protective components for several double wires also as a magazine be designated. However, it is preferred that the protective plug according to the invention two tapping contacts or two Has pairs of tapping contacts so that it is for protection a single pair is designed.

In the protective plug according to the invention, the strip-shaped tapping contacts at least in sections parallel. The wired components are parallel between the arranged tapping contacts. Through the Definition of two levels in the invention Protective plug through the parallel tapping contacts is a simple and clear arrangement of the protective components allows. In particular, through the tapping contacts two levels, one level for tapping the incoming Ladder and a level for tapping the outgoing ladder, Are defined. All protective components are between them arranged on both levels. This arrangement is extreme space-saving. In particular, compared to the Usually used attachment "on" a circuit board the dimension of the protective plug and the space required for its installation can be significantly reduced.

Advantageous further developments of the invention Protective plugs are described in the further claims.

For the equipment with the protective components for the Protective plug according to the invention preferred that this one Current protection, preferably in the form of a thermal resistor, and / or surge protection in the form of a gas arrester and / or a surge protector, preferably in the form a fine protection diode or a solid state arrester, having. Such an electronic arrester has in advantageously a close response tolerance. Through the described components or their combination with each other can advantageously protect both against too high Currents as well as against overvoltages can be achieved.

Although the orientation of the wires of the wired components is too the level of the strip-shaped contacts is arbitrary preferred that this in a to the level of strip-shaped contacts in the vertical alignment respective contact slots are clamped. This gives itself a trouble-free and reliable electrically conductive connection between the wired Components and the respective contacts.

For the formation of the contact slots in the Tapping contacts have proven to be advantageous to be slightly tapered. This will ensures that the contact slot is limited Areas of the tapping contacts at the end of the Insertion movement of the wires of the wired components bend open so that a gentle insertion movement is achieved, the solid and reliable connection of the wire in the Contact slot of the tapping contact through the tapering shape of the contact slot is ensured.

For those trained in the strip-shaped contacts Contact slots have proven to be beneficial to the two contact legs, the respective contact slot limit, adjacent a slot-like recess train. This allows the contact slot Dodge the limiting contact leg resiliently, so that the strip-shaped contact overall when inserting one Wire in a contact slot at this point is curved. Through the described cutouts on the side on the contact legs, these can be in the respective Recess can be deflected without affecting the overall shape of the to influence strip-shaped contact. The same purpose is achieved in the alternative embodiment, where the contact in the vicinity of the Contact slot limiting contact leg with respect its width is reset. In this case too rebound the contact legs.

In particular at the ends of the tapping contacts for the in this area trained contact slots preferred that they are limited by contact legs that are in the Width direction across that in the adjacent area of the Extend the contact trained width of the contact. In this way, with a simple shape of the resulting contact also the described Mobility for the contact legs can be achieved.

For the determination of the tapping contacts in the housing of the Protective plug offers advantages if the contacts one have a heel formed by a double bend, with which they are in the housing or a housing half are supported.

For the determination of the strip-shaped tapping contacts in The housing offers advantages if the housing or the Housing halves forming guide channels for this exhibit. For a reliable determination of the contacts in the housing can also in the respective guide channel at least one clamping rib may be provided.

The strip-shaped contacts of the invention Protective plugs can be particularly simple be that at least one contact is at least simply bent is, whereby the have different levels of contacts defined, between which the protective components can be arranged. In the event that the contacts are bent several times, can all bending edges of a contact according to the invention aligned parallel to each other. This makes it easier Production of those in the protective plug Tapping.

Brief description of the drawings

Fig. 1

eine Seitenansicht eines geöffneten Schutzsteckers gemäß der Erfindung;

Fig. 2

Draufsichten auf die in dem in Fig. 1 gezeigten Schutzstecker befindlichen Kontakte;

Fig. 3

eine Draufsicht auf den in Fig. 1 gezeigten, geöffneten Schutzstecker;

Fig. 4

eine Seitenansicht eines geöffneten Schutzsteckers, der Merkmale einiger abhängiger Ansprüche aufweist; und

Fig. 5

eine Seitenansicht eines weiteren geöffneten Schutzsteckers, der Merkmale einiger abhängiger Ansprüche aufweist.

An exemplary embodiment of the invention illustrated in the drawings is explained in more detail below. Show it:

Fig. 1

a side view of an opened protective plug according to the invention;

Fig. 2

Top views of the contacts located in the protective plug shown in Fig. 1;

Fig. 3

a plan view of the open protective plug shown in Figure 1;

Fig. 4

a side view of an opened protective plug having features of some dependent claims; and

Fig. 5

a side view of another open protective plug having features of some dependent claims.

Detailed description of preferred embodiments of the invention

1 of the protective plug 10 according to the invention Housing half 12 can be seen in the three levels Tapping contacts 14 for the side of the operator who Tapping contacts 16 for the line side and an earth spring 18 are included. As in the view of Fig. 1 well too can be recognized, there are those described below wired protective components between the contacts 14, 16, the tapping the contacts of the incoming or outgoing side a connection device for telecommunications technology serve. The protective plug 10 is with the pointed extension 20th in the area between the two rows of contacts Connection device introduced such that the Tapping contacts 14, 16 assigned to each other, opposite contacts of the connection device electrically contact manager. As in the view of Fig. 1 not too can be seen, are according to FIG. 1 in front of or behind the Contacts 14, 16 further tapping contacts, so that the respective contacts on one side the two adjacent contacts of a connection device tap in such a way that through the protective plug 10 Protection of a double wire is achieved.

In Fig. 1 the principle on which the invention is based is good to recognize that consists in the tapping contacts 14, 16 directly with the wires in the protective plug 10 recorded components are connected. The following described, preferred arrangement of the individual components in the protective plug according to the invention is of this Basic ideas independent and can be in any way can be varied without the main advantages of to abandon the principle of the invention.

In the embodiment shown in Fig. 1 are according to 1 from bottom to top Current protection in the form of a thermal resistor 22 Gas arrester 24 and a fine protection for overvoltages with steep rising edge in the form of a fine protection diode 26 or a solid-state arrester. The thermal resistor 22 is with its wires 28 in a respective, in Fig. 1st not recognizable contact slot of the respective contact 14, 16 clamped electrically conductive, so that the current in attached state of the protective plug 10 necessarily runs through the thermal resistor. Here is for the protective plug 10 according to the invention preferred, for each associated pair of contacts 14, 16 one Provide thermal resistor 22 so that on the terminal block the individual, opposing contacts for the incoming or outgoing wires against excessive currents can be protected. In the event that the flowing Current increased above a certain value increases due to the rising temperature in the thermal resistor 22 also the electrical resistance of the same, so that from a certain Point the flow of electricity is interrupted, and a current protection is guaranteed.

Against overvoltage, the one shown in the Embodiment approximately in the middle of the protective plug 10 arranged gas arrester 24 the necessary protection. By doing shown case is a three-pole surge arrester, its sideways and angled trained wires or legs 30 with a contact of the the connection of a pair of contacts serving as a pair are connected. In the case shown, the two are Lateral leg 30 of the gas discharge tube 24 with the one in FIG. 1 Contact 16 on the left and not in Fig. 1 discerning, arranged to some extent in front of or behind Contact connected. The respective strip-shaped contacts have, as will be explained in more detail below, or contact slots into which the legs 30 are trapped. If too high a voltage occurs the gas arrester 24 conducts the electrical energy over the middle legs 32 on the earth spring 18, which with a the terminal block or its carrier system trained Earth rail is in an electrically conductive connection. This will connect those to the terminal blocks Components and devices protected against overvoltages. As from the FIG. 2 described below also shows Earth spring 18 has a contact slot on which the middle Leg 32 of the gas arrester is directly electrically conductive connected.

Since the gas discharge tube 24 used as an example in the case of a Overvoltage with a steep rising edge only at triggers comparatively high voltages and with earth connects, is in the illustrated embodiment Invention also a fine protection in the form of a Fine protection diode 26 or a solid-state arrester intended. Such a fine protection component has a narrow Response tolerance, so that this also with Influencing voltage with a steep rising edge protection required. In the case shown is what cannot be seen in the view of FIG. 1, each of the consecutive as shown in FIG. 1 arranged contacts 14 such a blocking diode 26th assigned. The wires 34 of the blocking diode 26 are in one the contact 14 trained contact slot on the one hand and a contact slot formed in the earth rail 18 on the other hand pinched.

In Fig. 1 is in addition to the particularly clear arrangement the protective components 22, 24, 26 the particularly simple, to recognize strip-like shape of the contacts 14, 16, 18. In particular, it is the third contact level, so to speak of the protective plug 10 forming earth spring 18 essentially striped and unbent. The tapping contacts 14, 16 are only at the lower edge of the shown Half of the housing 12 by two opposite bends with one each paragraph 36 provided. The two bending edges run parallel to each other, so that the in the frame the measures required to manufacture simple can be accomplished.

In Fig. 2 are each in plan view Contacts of the protective plug 10 shown in FIG. 1 shown. 2 on the left is the Tapping contact 14 shown, which according to the top view of Fig. 2 has a largely strip-like shape and along its longitudinal extent in the shown Embodiment with two contact slots 38 and 40 is provided. As is clear in connection with FIG. 1, serves the lower as shown in FIG. 2 Contact slot 38 the pinching of the wire 28 of the Thermal resistor 22. In the at the top of the contact 14 formed contact slot 40 is a wire 34 of the Blocking diode 26 clamped. To the contact slot 38 adjacent and in the case shown on the other longitudinal edge of the Contacts 14 are each punched, slot-like Recesses 42 formed. These cuts 42 give the contact 14 an increased elasticity, so that the the contact slot 38 delimiting contact leg 44 resilient can dodge. The recesses 42 can also from that be formed the same edge to which the Contact slot opens so that they rebound in the same way can, and in certain applications compared to the shown embodiment a change in length of strip-shaped contact is avoided overall.

2 above the contact slot 38 is the contact 14 narrower in terms of its width, whereby at the upper end of the contact 14 two contact legs 44 over the narrow width of the contact 14 in this area extend so that when the wire 34 is inserted the fine protection diode 26 can also be deflected a little can.

The one shown on the right next to the contact 14 in FIG. associated contact 16 is with respect to the contact slot 38 for pinching the second wire 28 of the Thermal resistor 22 and the contact slot 46 for that Legs 30 of the gas discharge tube 24 have a similar design. In particular, at the upper end of the contact 16 is that for the Pinching the leg 30 provided contact slot 46 educated.

At the center of the top view in Fig. 2 Earth spring 18 is on the one hand the contact slot 48 for the middle legs 32 of the gas discharge tube 24 are formed. The on the other (left) edge provided slot-like Recesses 42 correspond to those previously described recesses described with the contact 14. this applies likewise for those in the upper area of the earth spring 18 trained recesses 42, adjacent to each one Contact leg 44 is formed, which together with the the upper end of the earth spring 18 provided contact leg 44th a respective contact slot 50 for the left according to FIG. 1 Leg 34 of the blocking diode 26 limited.

As can be seen from FIG. 2 in connection with FIG. 1 is provided according to the three in the connector 10 Contact planes the earth spring 18 as shown in FIG Fig. 2 arranged in front of the contacts 16 and 14. Further the contact 16 is arranged in front of the contact 14. If now mentally the two contacts 14, 16 as far as 2 to the right that the 2 left edges of all contacts 14, 16, 18th aligned with each other, and then the resulting arrangement 2 viewed from the right, so results in the arrangement shown in Fig. 1 mentioned contacts to each other. Stretches in the final state then, as can be seen in FIG. 1, in the upper region between the contact slot 50 of the earth spring 18 and the Contact slot 40 of the contact 14, the blocking diode 26. In the the upper contact slot 46 of the contact 16 is that according to FIG. 1 upper leg 30 of the gas arrester 24 clamped, the middle leg 32 in the contact slot 48 of the earth spring 18 is jammed. Finally, between each Contact slots 38 of the two contacts 14, 16 the thermal Resistor 22 with its wires 28 on both sides connected.

In the right part of FIG. 2 are those contacts 52 and 54 shown, each with its lower area on the Connection device a connection contact of the incoming or the outgoing side. As per the illustration 1, the two contacts 52 and 54 are above the in Fig. 1 arranged contacts 14 and 16, wherein contact 52 is level with contact 16, and contact 54 is level with contact 14. In the respective contact slot 38 of the two contacts 52 and 54 are the two wires 28 of another Thermal resistor 22 depressed so that the current flow necessarily done by thermal resistance, and the Components and devices connected to the protective plug 10 provided terminal block are connected against too high Currents are protected.

A rough protection against overvoltage offers for those of the two contacts 52, 54 tapped contacts of the Terminal block the connection of the contact 52 with the according Fig. 1 lower legs 30 of the gas discharge tube 24, which in the upper end of the contact 52 formed contact slot 46 is introduced. For fine protection in the event of an overvoltage a further blocking diode 26 with a steep rising edge, which can also be designed as a solid-state arrester, and whose wires 34 in the contact slot 40 of the contact 54 and the contact slot 50 of the earth spring 18 are pressed.

The top view of the protective plug 10 shown in FIG. 3 results in terms of in the protective plug contacts 14, 16, 18, 52 and 54 located by the above described displacement of the two contacts 14, 16 after right and the two contacts 52, 54 to the left. Like in 3 can be seen, extends in the Final state between the contact slots 40 of the two Contacts 54 and 14 and the contact slots 50 of the earth spring 18 each has a blocking diode 26. According to FIG. 3 below, this is a leg 30 of the gas discharge tube 24 can be seen in the Contact slot 46 of the contact 16 is pressed. The middle leg 32 is accordingly in the contact slot 48 of the earth spring 18 introduced. The lowest according to FIG. 3 Leg 30 is in contact slot 46 of contact 52 introduced. Finally, in the lower area of the in Fig. 3rd as the housing 12 shown open the two Thermal resistors 22 can be seen, the wires of each in the Contact slots 38 of the two contacts 14 and 16 or 52 and 54 are indented.

It should be emphasized again that the above is exemplary described arrangement of the individual protective components 22, 24, 26 in the protective plug 10 according to the invention for the Principle underlying the invention is immaterial. Much more can the advantages of the invention, namely a simple Structure, saving the usually required PCB and the clear arrangement of the Protective components can be achieved solely by the fact that Wires of the individual protective components directly electrical conductive in the area of the respective clamping slots in the Tapping contacts 14, 16, 52 and 54 are clamped. This advantageous type of a directly trained electrical conductive connection is also advantageous for the earth spring 18 before.

4 is a view corresponding to FIG. 1 Example of a protective plug 10 shown. This Embodiment has as the only protective component Gas arrester 24, as surge protection. A in Fig. 1st shown protective plug according to the invention can also as shown in Fig. 4, only one Have surge protection. The top and the bottom Leg 30 of the gas discharge tube 24 is in one Contact slot of a tapping contact 16 or 52 clamped, to a certain extent as shown in FIG. 4 are arranged one behind the other. With regard to training the contacts 16 correspond to the respective contact slot, 52 essentially the contacts 16 shown in FIG. 2, 52. In the example shown in Fig. 4 are only those formed at the ends of the tapping contacts 16, 52 Clamping slots 46 required because that shown in Fig. 4 Example has no current protection, and therefore the according 2 in the course of the strip-shaped contact 16, 52 provided clamping slot 38 is not required.

In the lower part of Fig. 4 it is indicated how the Tapping contacts 16, 52 in the separation area of the contacts one Terminal strip 56 drawn with dash-dotted lines extend. The corresponding tapping contacts one Protective plug according to the invention extend to similar Way in the separation area of the contacts of such Terminal block 56. The tapping contacts 16, 52 attack the voltage applied to the contacts of the terminal block 56, so that this is also present on the surge arrester 24. If a certain maximum voltage is exceeded, conducts the gas arrester 24 over the electrical energy middle leg 32 on the earth spring 18, whose corresponding clamping slot is designed approximately as this is shown in Fig. 2 for the earth spring 18. In which example shown is what is not necessarily the lower region of the earth spring 18 is required turned and with this area in one in FIG. 4th indicated earth rail 58 inserted. This earth rail 58 is in the case shown with several holes or Provide recesses in the lower sections of the plurality of protective plugs 10 are inserted and electrically Conductively connected to the earth rail 58. Alternatively, as mentioned at the beginning, the protective plug 10 be designed to protect multiple pairs.

In the example shown in Fig. 4 are also to recognize those measures with which for those in the housing half 12 shown contacts 16, 18 and 52 a defined arrangement is reached. For this are several ribs 60 on the parallel to the plane of the drawing extending inner surface of the housing half shown trained, which are preferably assigned to one another in pairs are, so that between two ribs 60 each Guide channel is defined in which the respective contact 16, 18 or 52 added and defined in terms of its location is. Such ribs can also be used in an inventive Protective plugs are used, but are not shown in FIG. 1 shown. In the case of the two tapping contacts 16, 52 the housing finally at the upper end 62 of the two contacts recessed such that the upper ends of the contacts 16, 52 are freely accessible from outside. This serves to place a test probe at each of these points. It is still noted that the ribs 60 of course the places where they the legs 30, 32 of Cross gas arrester 24, are cut out in a suitable manner, so that the legs 30, 32 with the required depth in the clamping slots of the respective contacts are pressed in can.

5 is yet another example of one Protective plug 10 shown that the example of FIG. 4th is similar. The main difference from that Embodiment of Fig. 4 is that not Tapping contacts 16, 52 are angled in their course, but the earth spring 18. The two tapping contacts 16, 52 are similar to the tapping contacts shown in Fig. 2 designed, but do not show the course trained clamping slots 38 and are not angled. Since the earth spring 18 the middle leg 32 of the Gas arrester 24 contacted at a point on the side on which the tapping contacts 16, 52 are also located, this must be angled in the example of FIG. 5 be one for several of the protective plugs 10 shown provided earth rail 58 at a suitable location to contact. Likewise, the tapping contacts 16, 52 in an inventive Protective plug straight and / or the earth spring angled be trained.

In addition, as shown in FIG. 5, the earth spring 18 not broadened at the lower end by flipping be like this with the previously described Embodiments is the case, but essentially by Forming a slot in the end portion and then bending the two apart at the slot adjacent areas in opposite directions. This will cause a certain spring tension standing electrically conductive contacting of the earth rail 58 reached.

Finally, in FIG. 5 there is also the form of a bracket 64 to detect the intended fail-safe device that is intended for the In the event that an overvoltage is present for a long time, for one permanent connection between the concerned Tapping contact 16, 52 and the earth spring 18 and thus for the Derivation of the electrical energy via the earth rail 58 Earth cares.

It should be noted that all features that are only in the Connection with the protective plugs according to FIGS. 4 and 5 were mentioned, also on those in FIGS. 1 to 3 protective plugs shown are applicable. After all, can the basic idea of the invention can also be seen in the fact that the contacts are strip-shaped, and that in their Clamp slots the wires of the wired components immediately are clamped electrically conductive, the wires of the wired components perpendicular to the plane of the contacts run, which is designed as strip-shaped sheet metal elements are.

Claims (9)

1. Safety plug (10) for a telecommunications technology device, with:

   a housing,

   several contacts (14, 16, 52, 54) that extend partially outside the housing (12), engage with the contacts of the telecommunications technology device or are connected to earth (18) when the plug is in use, and are formed as essentially strip-shaped sheet elements, each of which comprises a clamping slot (38, 40, 46, 48, 50), such that the contacts (14, 16, 18, 52, 54) are at least in sections arranged parallel to one another so as to define two parallel planes, and

   at least one wired-up component (22, 24, 26) having wiring formed thereon, such that in each case a wire (28, 30, 32, 34) of the wired component (22, 24, 26) is clamped in the clamping slot (38, 40, 46, 48, 50) such that the wired component (22, 24, 26) is connected in direct electrical communication with the contact (14, 16, 18, 52, 54),

   characterised in that
   all the wired components (22, 24, 26) are arranged between the planes defined by the contacts (14, 16, 52, 54) which engage with the contacts of the telecommunications technology device, and
   such that at least one component (22, 24) is arranged not only between the parallel planes, but also between the contacts (14. 16, 52, 54) themselves.
2. Safety plug according to Claim 1,
   characterised in that
   it comprises current protection, preferably in the form of a thermo-resistor (22) and/or overvoltage protection in the form of a gas suppressor (24) and/or fine overvoltage protection, preferably in the form of a fine protective diode (26) or a solid-state suppressor.
3. Safety plug according to at least one of the preceding claims,
   characterised in that
   the wires (28, 30, 32, 34) are clamped in a direction perpendicular to the plane of the strip-shaped contacts (14, 16, 18, 52, 54) in their respective clamping slots (38, 40, 46, 48, 50).
4. Safety plug according to at least one of the preceding claims,
   characterised in that
   the clamping slots (38, 40, 46, 48, 50) are shaped with a conical taper.
5. Safety plug according to at least one of the preceding claims,
   characterised in that
   the clamping slots (38, 48, 50) are defined by two contact limbs (44) in the area of constant width of the strip-shaped contacts (14, 16, 18, 52, 54), in which an adjacent slot-like recess (42) is formed, or the contact is set back in relation to its width.
6. Safety plug according to at least one of the preceding claims,
   characterised in that
   preferably at the ends of the contact (14, 16, 18, 52, 54) a clamping slot (40, 46, 50) is delimited by contact limbs (44), which extend outwards in the width direction beyond the width formed in the adjacent area of the contact.
7. Safety plug according to at least one of the preceding claims,
   characterised in that
   on at least one contact (14, 16, 52, 54) a step (36) is formed by a double-bend, by means of which the contact is supported in the housing (12) or in one half of the housing.
8. Safety plug according to at least one of the preceding claims,
   characterised in that
   the housing (12) has at least one guiding channel for the contacts (14, 16, 18, 52, 54) held therein, by which the contacts are held in the housing in the assembled state, and the guiding channel preferably comprises a clamping rib.
9. Safety plug according to at least one of the preceding claims,
   characterised in that
   at least one contact (14, 16, 52, 54) has at least one bend, and in the case when there is more than one bend all the bend edges of a contact are parallel to one another.

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