EP1403968A2 - Connection terminal - Google Patents

Abstract

The connection terminal has a bus bar (4) with an arrangement for contacting at least one conductor to be connected and a protective conductor connection (14,16,18) for joining the terminal to a profiled protective bus bar. The protective conductor connection is joined to the bus bar in one piece. The protective conductor connection has a base section (14) and a sprung latch section (16).

Description

The invention relates in a first aspect to a terminal, in particular a terminal, with a busbar and at least one separately formed and electrically conductive spring terminal connected thereto, which is suitable for screwless mounting a conductor by a conductor end with a spring force of the Federerklemmelements exceeding force ( or in the spring clamp open with an auxiliary tool) is inserted and is sufficiently contacted by spring force. Such terminals are common in particular in home technology and lead by dispensing with screwing to considerable time savings during installation.

Such a terminal is, for example. From DE 27 24 354 known in which in holders of a busbar, a leaf spring with a middle and two opposite, opposite curved turns of turns is used, each free leg are directed obliquely to contact areas of the busbar and rest against it with spring force. A disadvantage of this known embodiment is that the thickness of the terminal in the mounting direction due to the fact that the leaf spring, seen in the direction of assembly, is before the busbar, is always greater than the thickness of the leaf spring, which in turn must be at least as large as the largest wire diameter to be included.

From DE 100 53 035 a leaf spring clamp is known which has a support block made of a profile strip made of brass, to which a leaf spring is clamped. A disadvantage here is that the carrier block has a considerable material cross-section, which leads to corresponding material costs in practice.

From DE 42 31 244 an electrical terminal with a spring-loaded clamping element is known, which is similarly disadvantageous in terms of minimum width to be achieved in the direction of arrangement as known from DE 27 24 354 known terminal, since there is also the clamping of an inserted conductor effecting Spring leg, seen in the direction of assembly, is located in front of areas of a bus bar, which form a terminal chamber for the conductor, whereby the thickness of the terminal in the direction of arrangement is necessarily greater than the thickness of the spring leg.

Finally, from DE 195 47 557 an electrical clamp with spring-loaded clamping elements is known, wherein the spring force clamping elements are integrally bent from spring steel and engages a spring end portion through a conductor receiving opening in a mounting end portion of the spring force clamping element. In this type, the spring force clamping element must be opened with a separate actuation operation before the conductor can be inserted, ie a mounting only on pressure is not possible.

The invention has for its object to improve a generic terminal to the effect that it has the smallest possible thickness with the lowest possible material consumption.

This object is achieved in a generic terminal by the measure according to the invention, that the spring clamping element has a spring leg and an opposite contact legs for clamping an interposed and applied against the contact leg electrical conductor, wherein spring and contact legs for receiving spring forces respectively against the busbar are supported.

In a preferred embodiment of the invention, it is provided that the spring and contact legs are formed one or more parts of bent sheet material, which has substantially exclusively in a plane oriented perpendicular to a width direction of the flat sheet bending radii, so that a width dimension of the spring clamping element substantially Width of the flat material corresponds.

By this embodiment it is achieved that in an application as terminal the thickness of the terminal (dimension in the direction of arrangement) is not greater than the width dimension of the sheet material from which the spring clamping element (spring and contact legs) is formed (plus the thickness of the insulating material of the housing), so that the width of the terminal in relation to the maximum recordable conductor diameter is significantly lower than in known designs.

Appropriately, it is provided that the spring clamping element is formed in two parts and the spring leg consists of a material with a high modulus of elasticity, in particular spring steel.

It can further be provided that the spring clamping element is formed in two parts and the contact leg consists of a highly conductive material, in particular a copper alloy.

Spring and contact legs may each be substantially U-shaped or V-shaped and connected to each other along a respective portion.

The contact leg may have a corrugation for improving the contacting and fixing of a conductor.

It is preferably provided that the contact leg has a slot-shaped opening for connecting, in particular riveting, with a corresponding projection of the busbar.

As far as a two-part design of the spring clamp element is selected, spring and contact legs can be riveted together, welded or connected to each other in any other way. A conductive connection is not required because only the contact leg is needed to make a conductive connection.

In a particularly advantageous embodiment, it is provided that the spring clamping element has an additional spring portion, which acts on the spring leg with an excess beyond a predetermined amount deflection with an additional spring force. The additional spring portion may be formed as an extension of the spring leg.

In a first embodiment of the invention it is provided that the busbar made of flat sheet material, in particular punched, and oriented perpendicular to a width direction of the spring clamping element.

In this case, it is preferably provided that the bus bar (each) has a receiving recess for the (each) spring clamping element.

The (each) receiving recess may be U-shaped with a base portion and two side portions, wherein the spring clamping element is fixed to the base portion, in particular by riveting, welding and / or soldering. Alternatively, it can be provided that the spring clamping element in its receiving recess, for. B. only by plugging, is held in a form-fitting.

Appropriately, it is provided that in the region of the base portion of the (each) receiving recess a rivet projection is formed, which engages in the slot-shaped opening of the spring clamping element.

The invention further provides that the busbar has spring contacts for receiving at least one jumper finger.

The spring contacts may be integrally formed by punching with the busbar.

Furthermore, it can be provided that a protective conductor connection is formed integrally with the busbar.

In a second embodiment of the invention it is provided that the bus bar is made strip-shaped from flat sheet material whose width substantially coincides with the width of the Federerklemmelements.

It is preferably provided that the busbar is substantially planar.

Conveniently, the spring clamp element is provided with Abstützansätzen with which it is supported against the busbar. Here is preferably further provided that the contact leg is U-shaped in a central region and merges at both end portions in inverted U-shaped Abstützansätze, wherein free ends of the Abstützansätze are connected to the busbar, in particular by riveting or latching.

Further, it is preferably provided that the free ends of the Abstützansätze resiliently engage in punched openings of the busbar.

The invention further provides that the Abstützansätze run to improve the supporting action inclined to the busbar.

The invention further relates in a second aspect, a terminal, in particular terminal, with a bus bar made of a flat sheet material and at least one separately formed from the busbar and held spring clamp element, which has a spring leg for clamping an electrical conductor, wherein the spring clamping element of a curved, strip-shaped spring material is formed, which has substantially exclusively in a direction perpendicular to its width oriented plane lying bending radii, so that a width dimension of the spring clamping element substantially corresponds to the width of the spring material.

Such a terminal is, for example, from the aforementioned DE 27 24 354 known.

The solution of the problem underlying the invention is achieved in such a terminal in that the busbar is oriented perpendicular to the width direction of the spring element and the spring clamp element is supported for receiving spring forces against the busbar.

It is preferably provided that a contact surface against which the spring leg of the spring clamping element presses an electrical conductor, is formed by a perpendicular to an extension plane of the busbar angled region of the flat sheet.

It can be provided that the spring clamp element and the busbar are riveted together, welded or connected to each other in any other way. An electrical contact is not mandatory here.

Furthermore, it can be provided that the busbar has an integrally formed therewith stop, to which the spring leg with increasing deflection progressively applies.

Appropriately, it is provided that the busbar (each) has a receiving recess for the (each) spring clamp element.

It can also be provided that a protective conductor connection is formed integrally with the busbar.

Fig. 1

eine Seitenansicht einer ersten Ausführungsform einer erfindungsgemäßen Anschlußklemme in Form einer Reihenklemme;

Fig. 2

eine perspektivische Darstellung der Reihenklemme nach Fig. 1;

Fig. 3

eine perspektivische Ansicht der Anschlußklemme nach Fig. 2, wobei ein äußeres Kunststoffgehäuse weggelassen ist;

Fig. 4

eine vergrößerte perspektivische Darstellung eines erfindungsgemäßen Federklemmelements;

Fig. 5

eine weitere perspektivische Darstellung des Federklemmelements nach Fig. 4;

Fig. 6

eine perspektivische Darstellung der Stromschiene der Anschlußklemme nach Fig. 1 bis 3;

Fig. 7

eine Seitenansicht der Stromschiene nach Fig. 6;

Fig. 8

eine Seitenansicht einer Variante der Stromschiene nach Fig. 6 und 7, die mit einem Schutzleiteranschluß versehen ist;

Fig. 9

eine erläuternde Darstellung, die eine Anschlußklemme mit einer Stromschiene nach Fig. 8 im auf eine Schutzleiterschiene aufgerasteten Zustand zeigt;

Fig. 10

eine Seitenansicht einer weiteren Ausführungsform der erfindungsgemäßen Anschlußklemme in Form einer Reihenklemme;

Fig. 11

die Reihenklemme nach Fig. 10 in einer perspektivischen Ansicht;

Fig. 12

eine alternative Ausrührungsform eines erfindungsgemäßen Federklemmelements in der Anschlußklemme nach Fig. 10 und 11;

Fig. 13

eine perspektivische Ansicht einer Stromschiene in einer Anschlußklemme nach Fig. 10 und 11;

Fig. 14

eine perspektivische Ansicht der Anschlußklemme entsprechend Fig. 10 und 11, wobei ein Kunststoffgehäuse weggelassen ist;

Fig. 15

und 16 zwei Ansichten eines Brückers zur Verwendung mit der ersten Ausrührungsform der Anschlußklemme;

Fig. 17

eine perspektivische Ansicht einer weiteren Ausführungsform der erfindungsgemäßen Anschlußklemme in Form einer Reihenklemme zeigt;

Fig. 18

eine Seitenansicht der Ausrührungsform nach Fig. 17 zeigt;

Fig. 19 und 20

eine Seitenansicht bzw. eine stirnseitige Ansicht einer Stromschiene der Ausführungsform nach Fig. 17 und 18 zeigen; und

Fig. 21

einen Blechzuschnitt zur Herstellung der Stromschiene nach Fig. 19 und 20 zeigt.

The invention will be described below with reference to embodiments, reference being made to a drawing. Show it:

Fig. 1

a side view of a first embodiment of a terminal according to the invention in the form of a terminal block;

Fig. 2

a perspective view of the terminal block of FIG. 1;

Fig. 3

a perspective view of the terminal of Figure 2, wherein an outer plastic housing is omitted ..;

Fig. 4

an enlarged perspective view of a Federerklemmelements invention;

Fig. 5

a further perspective view of the spring clip element of FIG. 4;

Fig. 6

a perspective view of the busbar of the terminal of FIG. 1 to 3;

Fig. 7

a side view of the busbar of FIG. 6;

Fig. 8

a side view of a variant of the busbar of Figure 6 and 7, which is provided with a protective earth terminal.

Fig. 9

an explanatory view showing a terminal with a busbar of Figure 8 in the latched onto a protective conductor rail state.

Fig. 10

a side view of another embodiment of the terminal according to the invention in the form of a terminal block;

Fig. 11

the terminal block of Figure 10 in a perspective view.

Fig. 12

an alternative Ausfrührungsform a spring clip according to the invention in the terminal of FIG. 10 and 11;

Fig. 13

a perspective view of a busbar in a terminal of FIG. 10 and 11;

Fig. 14

a perspective view of the terminal according to Figures 10 and 11, wherein a plastic housing is omitted.

Fig. 15

and Figure 16 shows two views of a jumper for use with the first embodiment of the terminal;

Fig. 17

shows a perspective view of another embodiment of the terminal according to the invention in the form of a terminal block;

Fig. 18

Fig. 17 shows a side view of the embodiment of Fig. 17;

FIGS. 19 and 20

a side view and an end view of a busbar of the embodiment of FIGS. 17 and 18 show; and

Fig. 21

a sheet metal blank for the production of the busbar according to FIGS. 19 and 20 shows.

Fig. 1 to 9 illustrate a first embodiment of a terminal according to the invention in the form of a terminal block 1, which is shown in side and perspective view in FIGS. 1 and 2. The terminal block 1 has in a conventional manner a relatively narrow in the direction of arrangement 2, insulating plastic housing 3, which serves the insulating support of a busbar 4. Fixedly connected to the busbar are two spring clamping elements 6, each having a spring leg 8 and a contact leg 10 and are conductively connected to the busbar 4.

To be connected conductors can be mounted in a time-saving plug-in technology by passing through a housing opening 14 and inserted between spring leg 8 and contact leg 10 in the direction of arrow 12, wherein the spring leg 8 is opened away from the contact leg 10, so that a contact end portion of the connected Ladder between spring and contact legs is clamped. To release the conductor, a suitable tool, for example. A screwdriver, introduced through a further housing opening 16 and the spring leg 8 is opened become. In order to avoid excessive bending back of the spring leg, a stop 18 is provided.

FIGS. 3 to 7 serve to explain the busbar and spring clamping elements held in the housing 3. As shown in FIGS. 6 and 7, the busbar 4 is made of flat sheet material, in particular tinned copper sheet, by punching and has two U-shaped receiving recesses 20 for each spring clamp element 6, wherein each receiving recess has a base portion 22 and two substantially perpendicular has oriented side portions 24. In the region of each base section 22, a rivet projection 26 is formed, the free end of which has a chamfer 28.

In each case laterally adjacent to the receiving recesses 20, two spring contacts 30 are formed by narrowing and widening punch-outs, each of which serves to receive a jaw finger to be inserted in the direction of the arrow 29 (FIG.

4 and 5 illustrate the embodiment of the spring clamping elements 6. Although the spring clamping elements could be one piece, in the illustrated embodiment, for better functioning, a material allocation in terms of "springs" and "conduct" met, each spring clamp element 6 in two parts made of a spring steel existing spring leg 8 and a substantially U-shaped contact leg 10 is formed, which are connected by rivets 9 in the region of a subsection 8a, 10a. The contact leg 10 is provided in the region of a contacting surface 10b with corrugations 31, which serve on the one hand an improved contact and on the other hand a better mechanical retention of an inserted conductor.

The contact leg 10 further has a slot-shaped opening 32 for attachment to a rivet or clamping projection 26 of the busbar. Two forked Lugs 34 overlap on both sides a projection 36 of the busbar 4 in order to prevent a transverse movement of the contact leg 10.

With reference to FIGS. 1 to 3 it is clear that the spring clamping element is supported on the one hand with the spring leg 8 and on the other hand with the contact leg 10 against the side portions 24 of the bus bar 4 and thus, even if the spring leg 8 generates a relatively large spring force in the area the contact leg 10 must absorb any bending stress, since the spring force is completely absorbed by the busbar. The contact rail 10 therefore needs to be designed only with regard to the currents occurring, but not with regard to spring forces, resulting in a significant material savings. A further advantage is that the width of the terminal (Figure 3) in the direction of assembly 2 with the width b (Figure 4) of the spring clamp element, i. of contact leg 10 and spring leg 8 matches, which in turn is a consequence of the structural design that does not require any bent reinforcing areas on spring or contact legs.

To improve the contact between spring clamp elements and busbar, the rivet or clamping projections 26 can be deformed after attaching the spring clamp elements, so that the spring clamp elements are firmly and permanently connected to the busbar. Alternatively or additionally, a connection by soldering or welding is possible.

Another advantage of the terminal according to the invention shown in FIG. 1 to 7 is that Brückerverbindungen can be produced in the simplest way by one piece with the busbar spring contacts 30 are punched, which serve to accommodate comb-like Brückerfinger, which in turn are extremely inexpensive to produce. For the sake of clarity, FIGS. 15 and 16 show a bridge 160 with a web 161, from which five bridging fingers 162 depart, in a manner known per se.

8 and 9 illustrate a variant of a bus bar 4 'according to the invention, which serves with a protective conductor connection 38 for latching onto a protective conductor rail 40, while the bus bar 4' otherwise corresponds to the conductor rail 4.

10 to 14 show a further embodiment of a terminal according to the invention, wherein Fig. 10 and 11 in side and perspective view, corresponding to FIGS. 1 and 2, a terminal 101 with an insulating plastic housing 103, a busbar 104 and spring clamp elements 106 show. With respect to use and function of the terminal 101, reference is made to the relevant explanations to FIGS. 1 and 2.

The busbar 104 of the terminal 101 of FIG. 13 is strip-shaped made of a flat sheet material, in particular of a tin-plated copper alloy whose width, in contrast to the embodiment of FIG. 1 to 9 substantially coincides with the width / thickness b of the spring clamping elements 6, as Fig. 14 shows.

Fig. 12 shows a spring clamping element 106 in an enlarged view, it being recognized that a central portion of the Federerklemmelements with spring leg 108 corresponds to the spring clamp element 6 of the first embodiment, while the spring clamp element 106 is additionally provided with Abstützansätzen 150, with which it relative to the busbar 104th is supported. Free ends 150a of the support sections 150 have cutouts 152 so that the support extensions can be resiliently inserted into corresponding openings 154 of the busbar 104. For better contacting and mechanical fastening, the free ends 150a can be riveted or deformed in the region of the punched-out portions 152 after insertion into the openings 154, with a non-detachable connection being produced. Again, a soldering or welding connection is alternatively or additionally possible.

The bus bar 104 also has bridge openings 156 for receiving bridge fingers.

Substantial advantages of the above-described embodiment over the prior art are that the material of the spring clip element 106 (more specifically, the contact leg 110) including the support sections 150 can be made of a relatively thin material whose cross-section depends on the expected current strength, while the mechanical rigidity of the spring clip is maintained by the support against the bus bar 104. In addition, the terminal has a minimum width b in the mounting direction, since all components are formed of flat material extending in the width direction, without transversely bent, the mechanical stiffening serving areas are required, the width of the terminal by the amount of material thickness d (Fig. 12) would increase.

17 to 21 illustrate another embodiment of a terminal according to the invention in the form of a terminal 201 with a busbar 204 and spring clamp elements 206, reference being made to the explanations to FIGS. 1 to 9 with respect to use and function of the terminal 201.

In contrast to the first embodiment, the busbar 204 of the terminal 201 is not completely flat, but has two perpendicular to an extension plane of the busbar angled regions 270 are formed by the contact surfaces 271, the contacting of a between these and a spring leg 208 of the spring clamping element 206 inserted conductor serve. The function of the Federerklemmelements 206 thus corresponds to that of the Federerklemmelements 6 of the first embodiment, with the difference that the spring clamp member 206 is integrally formed in the form of a U- or C-shaped spring and does not require a separate contact leg, since it is formed by the power machine 204 As further shown in FIGS. 17 to 21, a stop 218, corresponding to the stop 18 of the first embodiment, is integrally formed with the bus bar 204 of sheet metal, resulting in further advantages both in terms of manufacture and function. On the one hand, a one-piece production is cheaper, and on the other hand is possible because the stop is not made of plastic, but of metal, possibly a significant increase in the spring constant (spring hardness) of Ferderklemmelements 206 possible, since the spring leg 208 with increasing deflection in the direction of the stop 218 increasingly applies to the curved stop surface, so that a shortening of the effective length of the leg and thus a stronger spring action results.

Figures 19 to 21 illustrate the design and manufacture of the bus bar 204, which is made from a single stamped sheet metal blank (Figure 21) by a few simple bending operations. A protective conductor terminal 238 can be provided without much extra effort.

In all embodiments of the present invention, a decisive advantage is that the width of the terminal or terminal (dimension in Anreichrichtung 2) is not greater than the width b of the flat or spring element, so that a maximum spring force with minimum width of the terminal is reached.

LIST OF REFERENCE NUMBERS

1

terminal

2

of arrangement

3

casing

4, 4 '

conductor rail

6

Spring clamping element

8th

spring leg

8a

part Of

9

rivet

10

contact legs

10a

subregion

10b

contact area

12

arrow

14, 16

housing opening

18

attack

20

receiving recess

22

base section

24

side portion

26

Nietvorsprung

28

bevel

29

arrow

30

spring contact

31

knurl

32

slotted opening

34

bifurcated approach

36

Lead (from 4)

38

Ground connection

40

Neutral rail

101

terminal

103

casing

104

conductor rail

106

Spring clamping element

108

spring leg

110

contact legs

150

bearing block

150a, b

free end

152

punching

154

Opening (in 104)

156

bridging opening

160

Cheats

161

web

162

jumper finger

201

terminal

204

conductor rail

206

Spring clamping element

208

spring leg

218

attack

238

Ground connection

270

angled area

271

contact area

b

Width / Thickness

d

material thickness

Claims (28)

Terminal, in particular terminal block (1), with a conductor rail (4) and at least one spring clip element (6) formed separately therefrom and electrically conductive, characterized in that the spring clip element (6) has a spring leg (8) and a contact leg (FIG. 10) for clamping an inserted therebetween and against the contact leg (10) adjacent electrical conductor, wherein spring and contact legs (8, 10) for receiving spring forces are respectively supported against the busbar (4). Terminal according to Claim 1, characterized in that the spring and contact legs (8, 10) are formed in one or more parts from bent flat material which is substantially exclusively in a direction perpendicular to a width direction (b; 2) of the flat material oriented plane lying bending radii, so that a width dimension (b) of the Federerklemmelements (6) substantially equal to the width (b) of the sheet material. Terminal according to claim 1 or 2, characterized in that the spring clamping element (6) is formed in two parts and the spring leg (8) consists of a material with a high modulus of elasticity, in particular spring steel. Terminal according to one of the preceding claims, characterized in that the spring clamping element (6) is formed in two parts and the contact leg (10) consists of a highly conductive material, in particular a copper alloy. Terminal according to one of the preceding claims, characterized in that the spring and contact legs (8, 10) are each connected to each other in a substantially U- or V-shaped manner and along a respective partial area (8a, 10a). Terminal according to one of the preceding claims, characterized in that the contact leg (10) has a corrugation (31) for improving the contacting and fixing of a conductor. Terminal according to one of the preceding claims, characterized in that the contact leg (10) has a slot-shaped opening (32) for connecting, in particular riveting or clamping, with a corresponding projection (26) of the bus bar. Terminal according to one of claims 3 to 7, characterized in that spring and contact legs (8, 10) riveted together, welded or otherwise connected to each other. Terminal according to one of the preceding claims, characterized in that the spring clamping element (6) has an additional spring portion, which acts on the spring leg (8) with an additional spring force beyond a predetermined extent deflection. Terminal according to one of the preceding claims, characterized in that the conductor rail (4) made of flat sheet material, in particular punched, and perpendicular to a width direction (b; 2) of the spring clamping element (6) is oriented. Terminal according to Claim 10, characterized in that the busbar (4) (in each case) has a receiving recess (20) for the (each) spring clamping element (6). A terminal according to claim 11, characterized in that the (each) receiving recess (20) is U-shaped with a base portion (22) and two side portions (24), the spring clamping element (6) being fixed to the base portion (22), in particular by riveting, clamping or welding. A terminal according to claim 12, characterized in that in the region of the base portion (22) of the (each) receiving recess (20) a projection (26) is formed, which engages in the slot-shaped opening (32) of the spring clamping element (6). Terminal according to one of Claims 10 to 13, characterized in that the busbar (4) has spring contacts (30) for receiving at least one bridging finger. Terminal according to Claim 14, characterized in that the spring contacts (30) are formed by stamping in one piece with the busbar (4). Terminal according to one of Claims 10 to 15, characterized in that a protective conductor connection (38) is formed integrally with the conductor rail (4 '). Terminal according to one of Claims 1 to 9, characterized in that the bus bar (104) is made in strip form from flat flat material whose width (b) substantially coincides with the width (b) of the spring clamping element (106). Terminal according to one of the preceding claims, characterized in that the busbar (4, 4 ', 104) is substantially planar. A terminal according to claim 17 or 18, characterized in that the spring clamping element (106) is provided with Abstützansätzen (150), with which it is supported against the busbar (104). Terminal according to Claim 19, characterized in that the contact limb (110) is U-shaped in a central region and merges into reverse U-shaped support extensions (150) at both end sections, with free ends (150a) of the support extensions (150) the busbar (104) are connected, in particular by riveting or locking. Terminal according to Claim 20, characterized in that the free ends (150a) of the support lugs (150) engage resiliently in punched openings of the busbar (104). Terminal according to one of Claims 19 to 21, characterized in that the support projections (150) extend inclined to the bus bar (104) in order to improve the supporting action. Terminal, in particular terminal block (201), having a bus bar (204) made of a planar sheet material and at least one spring clamping element (206) formed separately from the bus bar (204) and having a spring leg (208) for clamping an electrical conductor wherein the spring clamping element (206) is formed from a curved, strip-shaped spring material which has substantially exclusively in a plane oriented perpendicular to its width direction (2) lying bending radii, so that a width dimension (b) of the spring clamping element (206) substantially Width (b) of the spring material corresponds, characterized in that the bus bar (204) is oriented perpendicular to the width direction (2) of the Federerklemmelements (206) and the spring clamping element (206) for receiving spring forces against the bus bar (204) is supported. A terminal according to claim 23, characterized in that a contact surface (271) against which the spring leg (208) of the spring clamping element (206) presses an electrical conductor, by an area (270) of the plane angled perpendicular to an extension plane of the busbar (204) Flat material is formed. Terminal according to Claim 23 or 24, characterized in that the spring clamping element (206) and the busbar (204) are riveted, welded or otherwise connected to one another. Terminal according to one of Claims 23 to 25, characterized in that the bus bar (204) has a stop (218) formed integrally therewith, against which the spring leg (208) progressively engages as the deflection increases. Terminal according to one of claims 23 to 26, characterized in that the bus bar (204) (each) has a receiving recess for the (each) spring clamping element (206). Terminal according to one of claims 23 to 27, characterized in that a protective conductor terminal (238) is formed integrally with the busbar (204).

Images