DE1540550A1 - Switchgear containing fuses - Google Patents

Description

Switching device containing fuses

The invention relates to switching devices with fuses, especially with switching fuses that automatically interrupt electrical circuits, have the same shape and size and are therefore connected to electrical ones Control panels are interchangeable.

The aim and object of the invention is the following features and possible applications seen:

The aim is to create an improved fuse switch for electrical switchboards. -sn , always the same size and shape as a two-pole version with plug-in connections for the purpose of interchangeability. The fuse switch should consist of a pair of independently operable, rotatable switching units, each switching unit should have a movable switching body made of insulating material and an electrically conductive fuse holder with moving contacts attached to an inner end portion of the switching body. The fuse holder holds and engages one end of a fuse cartridge, and the moving contacts complete the circuit through that fuse.

The safety switch contains a fixed contact in the housing, and a switch body made of insulating material can be rotated between the positions ^M ON ^M and "OFF". The fuse holder with the moving contacts is located in the lower inner end of the switch body.

909881/0581

-brought and comes into the "ON ¹¹ position of the switch body with the fixed contact in engagement. A spring center serves both as a mechanical switching pressure spring when setting the stop body in its" ON "and" OFF "positions and as a contact spring, the in the "ON" position of the switch body, the electrical / erbinaung between the stationary Kor.takt and the movement clocks.

The fuse housing consists of insulating material and the dicheruncopatrone will be ahead. uer at one end acting electrically conductive Retaining clip mechanically pressed against the housing with its other end, and this retaining clip serves at its other end as electrical connector.

The fuse holder part united with the movement contacts represents the electrical connection with one end of a fuse cartridge here, and the movement contact part comes with the one fixed in the housing Contact engaged. The pedal body comes with the moving contact part opposite side of the Sahaltkörpers in close contact and ensures a pressure between the fixed contact and the moving contact part. When the latter is in engagement with the fixed contact, the switch body and fuse cartridge act as a rigid, uniform lever, in that one end of the fuse cartridge is held in place by the fuse holder and the spring body tried to rotate the lever formed from the switch body and locking sleeve around the other section of the locking sleeve, as the spring body is further away from the other end portion of the locking sleeve than the moving contact part, thus a mechanical one Possesses excess weight and the pressure between the stationary

909881 ³ / ös81 bad orig.nau

Contact "urid aem movement contact part increased. Ter in sen. Inner Κι. Iabsehni vt deü .'.- hai tkörpers, sitr.ence body from A special device ensures the joint removal of the fuse located in the safety holder. " together with the switch body.

The movement part rests on a fixed contact in the "ON" position of the switch body or is detached from the fixed center stroke in the "AU .. '" position of the switch body. The switching body is in the housing eiiis-teckoar and between -the "ON ¹¹ - and" OFF ". -Positions rotatably Gev.isse in E · .verhindern lines, the switch body passage in the" used on "position in the housing or can be removed from the housing.

The .Sicherungssehalter according to the invention contains a pair of stationary Contacts, furthermore a pair of movable switch bodies made of insulating material, a pair of electrically conductive security brackets with movement contacts, which are each connected to the inner end of the switch body

and serve to accommodate two fuse cartridges. These contacts, which are stationary in the housing, are connected to a plug-in contact via a common line. .- '■> ■

A plurality of safety switches are each used for recording several fuses from different first, second and third current maximum or fuse values. A locking device prevents any switch body in the "ON" position of the for Receiving a fuse for the second current fuse value "set up" switch housing is rotated when in the end part of the Schaltkörper.perG a fuse with the first maximum current value is located.

^: 90 9881/058 1

-I-. - * AD

Ir. Correspondingly, it is prevented that: switch body into the "ON" position can be turned when in a switch housing fuse, with first and second fuse values are inserted and these switches;: ur inclusion of a fuse with a third current maximum value is designed. It is also prevented that a designed to accommodate a fuse with a third current maximum value Switch body rotated into the "ON" position in a switch housing when the switch designed to accommodate a fuse with a third maximum current value is a fuse with the first or has received the second maximum current value.

From a circuit breaker, the one made of insulating material, switching grains and a fuse holder with two movement contacts contains, a movable contact part is used to close a circuit via the fuse received by the fuse holder and a second movable contact part for closing a circuit for a control lamp.

In this embodiment, the "touches the first movable contact part the fixed contact in the "ON" position of the switch body, while the spring component cooperates with the switch body and serves as a switching pressure spring when turning the switching body between the "BIN" and "OFF" positions. The second movable contact part touches the spring component in the "ON" position of the switch body and closes the circuit via the control lamp.

In the switch housing there is a lei.er.der metal strip, whose outer end serves as a consumer connector, while the inner end of the strip provides electrical connection with one

'* "BAD ORIGINAL

90988 1/0581

End of the fuse cartridge. Between the two ends the strip is provided with a springy cranked tongue. The control lamp housed in the housing is electrically connected to the spring component via a line and connected to the spring component via a further line cranked spring tongue of the mentioned connection strip connected, by pinching or pressing in the connecting wire between the resilient tongue and a housing section.

The fuse switch with a housing made of insulating material with an opening contained therein, one that is fixed in the housing Contact and one made of insulating material, from the opening protruding switch body is essentially distinguished by one connected to an inner end section of the switch body Component with fuse holder and moving contact made of electrically conductive material. The fuse holder takes under electrical connection on one end of a fuse cartridge and also has a movable contact part. Switch body and off Fuse holder and movement contact of existing components can be inserted in the "ON" or "OFF" position through the opening in the housing. The fixed contact and the moving contact are engaged or disengaged. Switch body and fuse holder and moving contact containing component and the housing with the opening are constructed and arranged so that the with a The end of the fuse cartridge sitting in the fuse holder Insertion of the switch body and fuse holder and moving contact into the housing moved axially through the opening.

909801/0581

The invention is based on following, egg in In the drawings shown the execution and partisr.l-eschrieoen in more detail.

Figure 1 is a side view of the orf containing the fuses in-house switching device.

B ¹ IgUr 2 shows an enlarged scale of this device according to FIG.

Figure jj shows, also in an enlarged view, aie oeiterianjicht the switchgear Lei with the leakage plate removed the fuses housed in it.

Figure * + is an enlarged view of a switch body and a öicherungshalt- unu moving contact unit, and indeed in the. Looking to the inner end.

FIG. 5 is a conservative view of a lietzanschluL-u: .a the «ir. uer switching device according to; Figures 1 to 3 fixed contacts existing body.

FIG. 6 shows a section through the switching device; along the Section line 6-c according to Fig. ^.

Figure 7 is iie side view of a switch body and a security holder and Eev.'egungskontakteinheit in the switching device according to Fig. 1. Therein the fuse is fully extended in its inclined position when inserting or removing it

^: and

or from their bracket / dashed line in the normal position

drawn.
FIG. 8 shows the switch body according to FIG. 7, seen from the right

without the fuse.
FIG. 9 shows in perspective the fuse holder and moving contact unit for the switching device according to FIG. 1.

90988 1/058 1 bath original

KIf Ui- 10 zei ^ t; era. ektiviüch eii.e of the pressure and contact springs for the switching device according to FIG. 1.

Figures 11, 12 tin-i l'S -ii (? I.en -i: ur-.irlüuteruii ^ -eii.er Kji.iJtruktion, which prevents mutually confusing dimensioned switches with their Jieheruiifeii and ochaltküri ern fjemäir of the invention 7 . \ x swap. Hariri are the fuse holders and

■ vve ^ uniTükontakteifJiei ten four 'Juersicht haluer omitted. the

■ el ic he runge i. and 3chaltkör; they are 'partially introduced into the broken off drawn roof housing shown which next to one another in the order of decreasing .. trombegreni.uiif-iiKert ^ e ^ eigt üii.r ,. IUe JchaltKÖi'i he tefinüen oicli respectively in the middle between their "EIN" and "AUo" positions.

■ I'M- ^ Ui * 14:; ei ^ i "eir: Jchaltoild -for the switching mechanism according to Fig. 1.

Figure 15 is a part of the front view of an electric switchboard with the fuse switches according to the invention, in which interchangeable electrical circuit breakers are provided.

Figure Lö redefines a cross-section along the cutting line lo-lo

FiS- 15. ■. /■.:■-■·■■■

In Figures 1 and 2, the fuse switch device 20 is shown according to the invention. It consists of a housing made of electrically insulating material with a base part 22 and a cover 24, which are essentially symmetrical in shape, but have some important differences described below. The avoided parts are connected to one another by several rivets 2-6 and each have a number of inwardly protruding projections and wall sections for fixing ο · / λ :. Jamming of the individual parts <each switching device, for example

00 9 8 81 / OESI

ur. <1

wise the. consisting of the mains connection, the contact arrangement 28 fixed in the housing, the two sheet metal strips 29 and 30 for the consumer connection, the two push-in connection clamping springs .32, the uichaltrück- and contact springs ^ k, the two control lamps 36, resistors 38 and a retaining clip 40.

In the housing are removable and rotatable between "ON" and "OFF" positions, two parts 42, each consisting of a switching element 4J and one consisting of a holding member and movement contacts Unit 44 (Fig. 9). The latter is used to accommodate the end part or a sleeve of the fuse 46.

The part 28, which consists of the mains connection and the fixed contact, according to FIG. 5 contains a connection strip 48 which, according to FIG. Groove is located in the housing part 22 and has two fixed sections 48a. Another bent portion 48b is z. B. by riveting between the end sections 49a and 50a of two clamping jaws 49 and attached, the middle parts 49b and 50b riveted or in other Way are connected.

The existing housing 22 and cover 24 has approximately the same size as the housing of the circuit breaker according to US Patent 3 1 ^ 4 051, and the distance between the retaining clip and the network connection consisting of clamping jaws 49 and 50 is approximately equal to the distance between the retaining clip and the power plug connection of the circuit breaker mentioned, so that the present fuse switch is interchangeable with the circuit breaker on an electrical panel.

■ "■ ■ - 9 - α λ λ _{Λ Λ} „ MO 08IGIISiAL

The contact strips 29 and 30 have the lateral end sections 29a and 30a, which serve as consumer connections. The housing has two openings 52 on the side for this purpose printed and thus the respective line wire 53. As can be seen, the consumer lines 53 _{: are connected} in a simple manner by plugging between the end sections 29a and 30a and into the relevant clamping spring 32.

The other end parts 29b and 30b of the contact strips lay down or press against the lower sleeve of the to make electrical contact , respective fuse 46, which thereby against a projection in the housing is pressed. The sections 29b and 30b thus form one-sided spring clips for the fuses. The intermediate areas of the connecting posts 29 and 30 are provided with cranked spring tongues 29c and 30c.

The control lamps 36 are on the line 56 with the relevant Resistor 38 connected, via the other terminal 57 with a spring 34. From the resistors 38, the lines 59 and 60 lead to the contact strips 29 and 30, where they are between the spring tongues 29c and 30c and sections of the housing bottom 22 are clamped. The line 56 leading over the connecting strip 48 is provided with an "insulating sleeve" 61.

The switching pressure and contact springs 34 are made of sheet metal (Fig. 10). Each spring 3 ^ has a flat end portion 3 ^ a, in a

909881 / 0S81

corresponding recess in the housing base 22 and serves as an anchoring foot, furthermore a central, relatively strongly curved contact section 3 ^ ^D , which is received in a recess, not shown, of the housing cover 24. The anchoring foot of the spring j $ 4 is provided with notches or slots 34c for holding the corresponding wire 57, which is clamped between the anchoring foot J4a and the housing base 22 by means of the spring 34 and makes the electrical contact. The other end of the celebration 34 is slit longitudinally and thus forms a stationary contact section J54d with a movable contact section 44a of the FIG. 9 fuse holder and moving contact device 44 shown. Between the slotted. At the end and the curved contact section 34b, the spring 34 is bent at an obtuse angle and forms a switching pressure and contact spring section 34e which cooperates with a protruding section 43a of one of the switching bodies 43. This is biased into the respective position when rotating between the "ON ¹¹ " and "OFF" positions and, in the "ON" position, ensures contact pressure between the holding contact 48a and the movable contact section 44b of the component 44.

Each unit of fuse holder and moving contacts contains the holding section 44c which can be inserted into a recess at the inner end of the switch body 43 for receiving the end part or the sleeve of a fuse 46 djait. An axially extending groove 43b of each switching body is connected with its lower end to the recess on the inner end section of the switching body , into which the fuse holding part 44c can be inserted. An outwardly projecting resilient tongue 44c on the holding part 44c protrudes into the aforementioned groove 43b and

- 11 -

909881/0581 ^{BATH 0RIGWAL}

holds the component 44 in the recess in the switch body 4j5, namely due to the intervention or due to the contact with the internal End, the groove 4 ^ b formed surface. An inward protrusion 44e of each component 44 is spaced from the fuse retainer 44 on, whereby the falling out of a fuse 46 is prevented when the longitudinal axes of fuse and switch body 4 ^ coincide, since the edge 4oa of the securing collar 46b is opposite (Fig.7).

If a switch body 4j5 is pulled out of the housing, the fuse 46 inserted in the component 44 goes rather nrit during this movement than that it would be held in the housing by one of the consumer connection clamping and contact sections 29b or JOb. A fuse 46 can be inserted into or removed from the fuse holder 44c when it is inclined to the axis of the switch body 43, in which case the edge 46a of the fuse collar 46b is released from the projection 44e, as in Pig. J is represented by solid lines. The inclination of the fuse 46 can be achieved by a recess 44f in the fuse holder section 44 (FIG. 9) and by a recess 4 ^ d in the

·' ' will

Switching body 4 ^ (Fig. 6) facilitated, the recess 43d also serves to accommodate the movable contact portion "44a and the Recess 44f is created in that the movable contact section 44a, which is located opposite the projection 44e, is bent out.

part
The holder housing, which consists of a base and a cover, is provided with markings for the "ON" and "OFF" positions. The upper end of the switch body 4 ^ 5 can easily be actuated according to its shape

¹² - 909881/0581

and thus also serves as a pointer for the markings, In the "setting." of a switching body 43 is the contact section 44b of the respective unit 44 with the corresponding contact section 48ades terminal strip 48 in engagement, and the contact portion 44a of the corresponding unit contacts the contact portion 34d of the corresponding spring 3 ^ # while in the "OFF" position of the switch body 43 these interacting contact sections are out of engagement.

As indicated in Figures 2 and 3 at the point 62, there can be enough clearance between a switch body 43 in the "ON" position and the housing consisting of base part 22 and cover 24 for the switch body 43 and the fuse 46 accommodated therein to engage single rigid member form, tried corresponding to FIG. 2 to the inner end portion of the fuse 46 to rotate counterclockwise, namely, according to the force of the respective spring 3 ² W is the Welter away from the inner end of the fuse 46 ,, as the corresponding fixed contact portion 48a and the movable contact portion 44b, so that there is a mechanical advantage over this contact or engagement and the contact pressure is increased. On the other hand, the housing base part 22, the cover 24 and the switch bodies 43 could be without the clearance shown at 62 when the switch bodies 43 are in their "ON" position. Without such clearance, the switch body 43 and fuse 46 do not act as a single rigid body. Rather, the switching body 43 tries to rotate clockwise about its outer end portion as shown in FIG. 2 as a result of the force of the corresponding spring 34. This Fer

closer
which is / is arranged on the outer end portion of the switch body 34

than the corresponding fixed contact section 48 and the

- 13 - 909881/0581

movable contact portion 44b, so that no mechanical Advantage exists more; nevertheless, there is also in this embodiment a sufficient contact pressure.

It is to be prevented that a switch body 43 is in its "ON" position can be inserted into or removed from the housing. According to 2 and 6 are the housing base 22 and cover 24 in the area of the Openings for the respective Johaltkörper 43 shaped differently. The openings for the switch bodies in the housing cover 24 are approximately semicircular Surfaces 63 according to FIG. 2, which have no possibility of

Offer introduction of the projection 43a. In contrast, is in the housing part
Basically 22 a pair of surfaces 64 and 65 standing at right angles to one another are provided, which leave space for the entry and exit of the projection 43a of the switch body. As a result, a switch body 43 can only be inserted into the housing in a certain angular position to the housing, namely when the projection 43a fits into the rectangular recessed section of the opening surfaces 64 and 65 in the housing base. This position corresponds to the "OFF" position of the switch body 43, as shown in FIG. 2 for the right switch body. In the interior of the housing, however, the parts of the housing cover 24 which form the semicircular surfaces 43 end as two surfaces 66, one of which is shown in FIG end according to FIG. 3. When the projection 43a of a switch body 43 are completely within the corresponding surfaces 66 and 67, there is no longer a complete restriction of the rotary movement of the switch body and a movement into the "ON" position can take place, as is the case for the left switch body in FIG Fig. 2 is shown,

- lit - "909881 / 0.581 '

. To remove a ochaltkörpex · from the housing, it first in the N & N ¹¹ AUo "position are rotated so that projection ier 4j5a from the range uer störer.ier upper surface 66 of the ^Ge-h: iuseoberteils 24 as well as from the corresponding surface c7 in the area of the surface 04 of the housing green part 22 arrives.

14 shows the circuit diagram for the fuse switch as shown in FIGS. 1 to 3. In the file, the reference symbols for never electrical Jchalt.ur.gsteile correspond to those of the corresponding mechanical components, as they were described with reference to FIGS. 1 to 10.

Figures 11 to 1J5 explain how the swap before. ^ chaltsicherungei. This is prevented if fuses with three different fuse ratings or maximum current values are used. Daoei sail prevent the use of a fuse with a higher maximum current value than the maximum value of the fuse intended for the respective switch. 11 shows a housing part 122a of a switch which is intended to accommodate a fuse with the largest of three different maximum current values. In contrast, FIG. 13 shows a housing base part 122c of a switch for receiving a fuse with the lowest of the three maximum current values, while FIG. 12 shows the housing part 122b of a switch for fuses corresponding to the average maximum current value. The backup 146a in FIG. 11 with the largest current peak value and the corresponding switch body 14Ja belong to the switch with the housing part 122a, the fuse 1 46b with the average power maximum value and switch body 143b of Fig. 12 in the switch with the housing portion 122b, and

ORIGINAL

i> ialiening l4oc with the lowest current maximum value and the Sehaltkörper 143c belong in the switch with the housing part 122c. the respective fuse holder and movement contacts of the switch body ■ I43a, 143b and I43c are omitted for the sake of clarity.

Ei'i'indungsgeinJiii H ^ mm- or deflection devices are provided , which on the one hand prevent the rotating movement of a holding body in a switch with the housing: iusegrui _i dteill22c if one of the fuses l4ca or l4to is in this S-holding body, unu which, on the other hand, prevent the switching body from rotating into its "ON" position within a switch with the housing base part 122b when a fuse 146a is located in it.

Fuses 146a, 146b and 146c have the same diameter, but fuse 146a is longer than fuse 146b and 146c Fuse 146b longer than fuse l46c. The switches with the housing base parts 122a, 122b and 122c have the same exterior Shape and the same size. The switch bodies l43a, 143b and 14 ^ c have the same diameter and the same overall length, but the recesses have opposite the handle and pointer portions 43c for receiving the Fuses a different depth. This causes the fuse to protrude farther into the switch body l4 ^ a than the fuse l46b into the Switch body 143b, and the fuse l46b goes on in the switch body I4j5b into the switch body 143c as the fuse I46c

With the same length of the switch body l43e as the switch body and 143b, by contrast, is a portion of the extent to which the Ausneh -mj "is cut out or cut off at 168 according to FIG.

_ _l6 _ 909881/0581

The housing base parts 122a, 122b and 122c have projections 170a, 170b and 170c with inwardly facing surfaces 171a, 171b and 171c, respectively. The housing base parts 122a, 122b and 122c also contain inwardly facing surfaces 172a, 172b and 172c according to FIGS. 11, 12 and others. The projection 170c is thicker in height than the projections 170a and 170b, and the surfaces 171a and 171b are each further away from the fuse insert openings in the switch housing than the surface 171c in the corresponding insert opening of the switch with the housing base part 122c. In addition, the surface 172a is located further inside or closer to the center of the security receiving opening of the switch with the housing base part 122a than the surfaces 172b and 172c in the corresponding housing parts 122b and 122c, respectively.

When inserting the fuse 146a or 146b into the switch body I4j5c

and introduction of the switch body with fuses into the switch The inner end of the fuse 146a comes to the housing base 122c or 146b in contact with surface 172c before the protrusion

4 ^ a of the switching body 14 ^ c is completely below the surface of the housing lower part 122c is located, and the projection 4j5a is the Surface 65 of the housing base part 122c opposite, so that a rotary movement of the switch body 143c in the "ON" position is impossible.

When inserting one of the switch bodies 14 ^ a or l4> b into the switch with the housing base 122c, it comes into contact with the surface 171c, before the projection 4j5a is completely below or is located within surface 67 of housing base 122c, and the

~ ¹⁷ ~ BAD ORIGINAL

909S81 / 0581

Projection 43a cannot be on surface 65 of housing part 122c over, so that the switching body 143a or 143b in a rotary movement is prevented in its "ON" position. Even if a fuse l46b is inserted in the switch body I43a and thus a Combination is formed, which is shorter than the total length of the switch body l43c and the fuse l46c and thus an inhibition If the surface 172c of the housing base part 122c is absent, the combination of fuse 146b and switch body 143a cannot be in the "SIN" position are brought into the housing base part 122c, since the switching body 143a abuts the surface 171c before the projection 4j5a of the surface 67 of the housing base part 122c is free.

If any of the switch bodies I43a, 143b or l43c and a Fuse 146a inserted into the switch with the housing base 122b the inner end of the fuse 146a comes into contact with the surface 172b before the projection 43a of the respective switch body sits completely below the surface 67 of the lower part 122b, and the projection 43a abuts against the surface 65 of the lower part 122b, so that the respective switch body is not turned into the "ON" position can be.

It can be seen that in no case a switch body in any Switch can be turned to an "ON" position if in it a fuse is inserted whose maximum current value is higher than that for which the switch is intended.

Figures 15 and 16 show an electrical switchboard 178 with a open front box 179 * one at the front of the box

"18- 909881/0581 '

fixed cover plate Ib-D, eir.er swivel ar. the door lol attached to the cover plate, a cladding Ir2 _f which preferably, but not necessarily, forms a uniform 3-component with the cover plate IbI. A fastening shell .lS4 connected to the rear wall of the box has two opposing fastening rails Io5. In the mounting shell 1Ö4, an insulating attachment l3o is firmly attached, on which two main busbars 1 ~, γ are attached parallel to one another at a distance. Furthermore, a plurality of branch busbars are provided, each of which is attached to one of the main busbars and which extend in the direction of the other main busbar. They are alternately arranged so that each pair of successive branch busbars is connected to the opposite main busbar. A neutral rail assembly 1 ^ 9 is attached to the insulation pad. Two electrical terminals I90 are used to connect ar. a pair of supply lines or to the main busbars, while a third terminal 190 is used to connect a conductor to the neutral rail arrangement.

On the fastening rails IB5 and the branch busbars l8o are interchangeable several switches with fuses 20 according to the invention and a number of electrical circuit breakers described in the above-mentioned US Pat. No. 3,13,051 192 arranged. The housing of the fuse switch 20 have essentially the same shape and shape as the housing of the breaker 192 »and the retaining clip 40 and the clamping jaws 49 # 50 the fuse switch 20 correspond to the retaining clips 33 and

-19-

909881/0581 ^{BADORiQ} NAL}

Jaws J> 4 of the circuit breaker · in the patent mentioned. The housings of parts 20 and 192 have essentially the same thickness, which is not greater than the distance between the center lines of the juxtaposed junction busbars Ir ;, the cladding sheet 1.) 2 has two openings 1.:- 3 is provided, some of dui'ch respectively, the mutually parallel opposite edge 'lojüa and Id ^ b sine formed .. the Geliäuse of each L'a oherungsschalters 20 has an approximately rechteckfürmigen projection 21 the dimension of which is substantially equal to or slightly less than the distance between the edges 1 ^ jJa and l. \ 5b · The housing of a circuit breaker 192 also has an approximately rectangular projection 193 * the dimensions of which are essentially the same, but not greater than the distance between the edges lu} a and 1ΐ \ Therefore, the circuit breakers and the circuit breakers 192 can be used interchangeably without changing the cladding panel 183, so that one manufacturer has the same control panels for different ones Uses can be supplied.

909881/0581

Claims (9)

Claims 1.. Switching device containing fuses in an insulating material housing with an opening contained therein, a stationary one Contact in the housing and a part of a switch body made of insulating material and protruding from the opening by a component with fuse holder and moving contacts (44) connected to an inner end part of the switching body (43) electrically conductive material which can be inserted and removed through the housing opening (63,64,65) and in the housing (22,24) an "ON" and has an "OFF" position in which the fixed contact (48a) and the moving contact (44b) are in or out of engagement, and that the housing (22,24) with opening, the switch body (43) and the fuse holder and moving contact components (44) are arranged or designed in relation to one another in such a way that the fuse cartridge (46) seated at one end in the fuse holder (44c) is positioned when it is inserted of the switching body and the fuse holder and moving contact component (44) moved axially into the housing (22,24) through the opening, 2. Switching device according to claim 1, characterized in that in the Housing a safety shackle bracket (29b, 3Ot)) is provided, the holds the other end portion of a fuse cartridge (46) with electrical contact. 3. Switch according to claims 1 or 2, characterized by a • Peder component (34), which interacts with the switch body (43), and both as a switching pressure spring during the rotary movement of the switching body between the "ON" and "OFF" positions and as a contact 90 9881/0581 compression spring, between the fixed contact (48) and the movable one Contact part (44b) in the "ON" position of the switch body (43). 4 * switch according to claims 2 or 3 * characterized in that that the fuse holding clips (29b, 30b) the lower end ier The fuse cartridge (46) surrounds only one part and the other part Page of the scope of the protection against a corresponding section of the housing (22,24) pushes. 5. Switch according to claims 1 to 4, characterized in that the cylindrically shaped switch body (43) on an axial Area of its length has a radial projection (43a), which in the Upper part of the housing opening a corresponding recess (64,65) is assigned, which is in the "OFF" position of the switch body with its Projection (43a) is aligned. if 6. Switch according to claims 1 to 5 *, characterized in that that in the housing a control lamp (36) via a lead wire (56 \, 57) and a resilient electrical conductor (29c, 30c) connected and the lead wire with the resilient electrical conductor by being pinched or caught between electrical conductors and Housing is connected to the conductor. 7. Switch according to claims 1 to 6, characterized in that that the housing (22,24) has two opposite longitudinal side wall sections, a bottom wall section, a power connection (28) . ■ ":. 909881/0581 · one end of the housing and a consumer connection (29a, 30a) in the area of the other end of the housing, while the fuse (46) is accommodated between the üeitenwandabschnitte and extends substantially perpendicular to the bottom wall abdmitt and is electrically connected with its end portions between the mains connection and the consumer connection. 8. Switch according to claims 1 to 7 »characterized in that to prevent the switching movement of a switch body with a fuse for a higher current maximum value in the" ON "position in a switch housing for a lower current maximum value, the switch housing for lower current maximum values a housing opening with a shallower axial depth (172b, 172c) and / or one of the lower edge of the switch body opposite lateral projection (171c) in a smaller axial depth in the housing opening than the switch housing for higher current values, such that a switch body (43) with its radial projection ( 4 ^ a) on the recess wall (65), which has a certain axial length, can only be pushed and rotated into its "ON ^11" position if the fuse (46) accommodated in it corresponds to the maximum current value of the corresponding housing or is smaller in this regard. 9. Switch according to claim 8, characterized in that a switch body (43) for a fuse with a low current limit value its lower edge has a recess (I68) that corresponds to the lateral Projection (171c) assigned to a small axial depth in the housing opening is. 909881/0581 ^.23 - Read 11 e