EP1376638A1 - Electromagnetic protection and control assembly - Google Patents

Abstract

The assembly includes a connection element (80,80') which are electrically connected to the poles of the first and second electrical apparatus of the protection and control assembly, the connection element being positioned, on one part, between the casing and the first apparatus power terminal block (40,50), and on the other part, between the casing (20) and the second apparatus power terminal block (40', 50'). The assembly includes a number of multi-polar switches, each one having a casing (10,20,30) with front and rear conductor connection bars, which project along a vertical axis on the horizontal connection area at the front and back of the casing, and which are adapted to be inserted in openings (44) of movable power terminal blocks (40,40',50,50',60).

Description

The present invention relates to a set of protection and Electromagnetic control allowing a combination of several devices electrical multipole switches, especially for the realization of a set comprising a plurality of electrical devices such as contactor, circuit breaker or other similar electrical apparatus, usable in distribution or electrical control low tension. The invention also relates to an electrical appliance capable of to enter into the composition of such a set of protection and control.

In an assembly for the protection and control of an engine electric (usually called an "engine starter kit") or any other multipolar electric charge in low voltage, we frequently associate in cascade an electrical protective device, such as a circuit breaker or a fuse switch with an electrical control device, such as a contactor. Can also add to this association other devices such as a thermal protection relay. In addition, one may want to associate several control devices in one and the same motor starting assembly so as to perform a logic function, in particular a inverter function.

We are looking more and more to install such a set of motor starters most simply and as quickly as possible while maintaining an electrical connection reliable. For obvious reasons of cost, time saving during assembly / wiring and saving space in enclosures or electrical cabinets hosting the whole, we seeks in particular to remove possible conductors (wires, bars) from connection between devices, to minimize the number of electrical connections to perform and minimize the total size of the different associated devices. By elsewhere, the assembled assembly must keep easy access for the connection of its Power terminal blocks with external conductors, such as cables or bars.

EP1100105 discloses a prewiring device between two multipole contactors. Upstream and downstream pre-wiring modules are offered to quickly achieve a logical function determined between the two contactors. In this document, the upstream modules are positioned upstream upstream power terminal blocks and downstream modules are positioned downstream power terminals downstream devices. As a result, the modules hinder access power terminals for the introduction of external conductors, especially in the cases of high power devices requiring external conductors large section, for example with a higher electric current or equal to 32A at 400V. In addition, if we want to add to the whole an electrical device additional circuit, for example a circuit-breaker upstream of the two contactors or a thermal relay downstream of the two contactors, this solution always requires the use of two power terminals per device.

The invention therefore aims to facilitate the establishment of an association several electrical appliances in order to achieve in a simple way, reliable and economical a set of protection and control and allowing easily perform a logical function.

For this, the invention describes a protection and control assembly comprising a plurality of multipolar electrical switchgear having each a housing provided with conductive strips of upstream and downstream connection, which protrude along a vertical axis over a horizontal connection range upstream and downstream of the housing and which are likely to be inserted into openings of removable power terminals. The set includes at least one element of a link that electrically connects the poles of a first and a second electrical appliance of the protection and control assembly, the connecting element being arranged way to position on the one hand between the housing and a removable power terminal block of the first electrical device, on the other hand between the housing and a power terminal block removable from the second electrical device.

According to one characteristic, each connecting element comprises first connection pins connected to second connection pins. These pins protrude along the vertical axis and are insertable into openings of removable power terminals. The connection pins of a connection element are pressed against the terminal blocks of electrical appliances.

According to another characteristic, the connecting element has maintaining the ability to cooperate with complementary means housings of electrical appliances. The holding members are constituted preferably by one or more lugs arranged on at least one face horizontal of the connecting element.

According to another characteristic, the assembly comprises a connecting element upstream whose first pins are in contact with the terminal strips upstream of the housing of the first electrical device and whose second pins are in contact with the upstream connection strips of the housing of the second electrical device. The assembly also includes a downstream link element, the first of which pins are in contact with the connection bars downstream of the housing of the first electrical appliance and whose second pins are in contact with the bars of downstream connection of the housing of the second electrical appliance. To perform a function of inverter, the upstream connecting element connecting the upstream bars of the housings of two three-pole electrical devices internally performs a two-pole inversion function electrical appliances.

According to another characteristic, the invention describes an assembly comprising a serial link element whose first pins are in contact with the bars downstream connection of the housing of a first electrical device and whose seconds pins are in contact with the upstream connection bars of the housing of a second electrical appliance, positioned adjacent to the first electrical appliance.

Another object of the invention is to provide an electrical switch device able to be integrated into a protection and control system as described in the invention. This device comprises a housing provided with conductive strips of upstream connection respectively downstream, which project from a vertical axis on an upstream and downstream horizontal connection area of the housing and which may be inserted into power terminal block openings removable.

• la figure 1 schématise en vue de face un exemple d'un ensemble de protection et de commande comprenant trois appareils électriques,
• la figure 2 reprend l'exemple de la figure 1 en vue de côté, dans laquelle figurent en outre les barrettes de connexion des appareils électriques et les broches des éléments de liaison,
• la figure 3 montre en vue de face un boítier d'un appareil électrique entrant dans la composition d'un ensemble selon la figure 1,
• la figure 4 reprend le boítier de la figure 3 en vue de côté,
• la figure 5 détaille deux borniers amovibles selon une coupe A-A de la figure 1,
• la figure 6 représente un des borniers de la figure 5 en vue de face,
• la figure 7 montre une vue de côté d'un boítier d'un autre appareil électrique entrant dans la composition d'un ensemble selon la figure 1,
• la figure 8 détaille une vue de face d'un élément de liaison présent dans l'ensemble de la figure 1,
• la figure 9 reprend l'élément de liaison de la figure 8 en vue de côté,
• la figure 10 schématise en vue de face un autre exemple d'un ensemble de protection et de commande comprenant deux appareils électriques,
• la figure 11 détaille l'élément de liaison présent dans la figure 10.

Other features and advantages will appear in the detailed description which follows with reference to an embodiment given by way of example and represented by the appended drawings in which:

• FIG. 1 schematizes in front view an example of a protection and control assembly comprising three electrical appliances,
• FIG. 2 shows the example of FIG. 1 in side view, in which the connection strips of the electrical devices and the pins of the connecting elements are furthermore shown,
• FIG. 3 shows in front view a housing of an electrical appliance used in the composition of an assembly according to FIG. 1,
• FIG. 4 shows the housing of FIG. 3 in side view,
• FIG. 5 details two removable terminal blocks in section AA of FIG. 1,
• FIG. 6 represents one of the terminal blocks of FIG. 5 in front view,
• FIG. 7 shows a side view of a housing of another electrical appliance used in the composition of an assembly according to FIG. 1,
• FIG. 8 details a front view of a connecting element present in the assembly of FIG. 1,
• FIG. 9 shows the connecting element of FIG. 8 in side view,
• FIG. 10 shows schematically in front view another example of a protection and control assembly comprising two electrical appliances,
• Figure 11 details the connecting element present in Figure 10.

FIGS. 1 and 2 show an exemplary embodiment of a set of protection and control according to the invention. This set has three devices electrical, in this case a circuit breaker 30 and two contactors 10,20. The invention would allow an equivalent way to achieve a set further comprising example a thermal relay downstream of one of the contactors. Moreover, it is clear that the invention can also be applied to any other electrical appliance that can be used in distribution or low voltage electrical control.

Figures 3 and 4 show a multipolar electrical switch device, for example of the breaker type, comprising a housing 30 and capable of integrating in such a set of protection and control. Figure 7 represents another electrical multipolar switch device, for example of the contactor type, comprising a housing 10 and also capable of integrating into such a set of protection and control.

Each housing 10, respectively 30, is of overall shape parallelepiped with a front face 11, respectively 31, which may comprise a actuating member opposite a rear face 12, respectively 32, which can include means for fixing the apparatus on a frame, a profile and / or a platinum. Each housing 10, respectively 30, has a face substantially upstream horizontal 13b, 14b, respectively 33b, 34b, opposite a face substantially downstream horizontal 13a, 14a, respectively 33a, 34a. Conducting bars of upstream connection 19b, respectively 39b, protrude on the upstream face 13b, 14b respectively 33b, 34b, of the housing 10, respectively 30, along an axis vertical X. Conducting strips of downstream connection 19a, respectively 39a, protrude on the downstream face 13a, 14a, respectively 33a, 34a, of the housing 10, respectively 30, along the same vertical axis X, but in an opposite direction.

Of course, at each of the poles of the switch device corresponds a upstream link and a corresponding downstream link, intended for the arrival and departure of the electrical current in this pole. The examples presented in Figures 3, 4 and 7 have three upstream and three downstream bars, thus schematizing three-pole devices. In a preferred embodiment of the invention, the apparatuses switches have conductive strips 19a, 19b, respectively 39a, 39b, rigid, of identical rectangular section and of sufficient size for the circulation of a high power current, for example greater than or equal to 32A at 400V. Usually, the conductive strips are metallic, in particular copper.

Preferably, the downstream horizontal face 13a, 14a, respectively 33a, 34a, and the upstream horizontal face 13b, 14b, respectively 33b, 34b, of a housing 10, respectively 30, are formed by several horizontal planes offset one by report to the other. Thus, the downstream horizontal face consists of a downstream support pad 13a, respectively 33a, substantially horizontal and a range of downstream connection 14a, respectively 34a, shifted substantially horizontally. The downstream conductor strips 19a, respectively 39a, come out of the range of downstream connection 14a, respectively 34a. Similarly, the upstream horizontal face is consisting of an upstream bearing surface 13b, respectively 33b, substantially horizontal and an upstream connection range 14b, respectively 34b, offset substantially horizontally. The upstream conductor strips 19b, respectively 39b come out of the upstream connection range 14b, respectively 34b. The downstream support pads 13a and upstream 13b, respectively 33a and 33b, are more close to the rear face 12, respectively 32, of the housing 10, respectively 30, and are more distant from each other than the downstream connection pads 14a and upstream 14b, respectively 34a and 34b.

The downstream and upstream connection areas of the housings 10, 30 are arranged to each receive a removable power terminal block 40 so as to allow the electrical connection of the terminal strips 19a, 19b, 39a, 39b with external conductors. Such a power terminal block 40, shown in FIGS. 5 and 6, obviously has as many power terminals as poles of the device switch on which it must be mounted. It is parallelepipedic in shape with two horizontal faces 41,49 opposite and a vertical front face to access clamping screws 42 of the terminals. For each terminal of the power terminal block 40, it there is a vertical aperture 44 through the horizontal faces 41,49 and to insert one or more electrical conductors perpendicular to the axis of the screws 42. The width of a terminal block 40 is substantially equal to that of the housings 10.30.

Thus, each connection strip 19a, 19b, respectively 39a, 39b, is inserted into a corresponding opening 44 when one of the faces 41.49 of a terminal block 40 is pressed against a range of connection 14a, 14b, respectively 34a, 34b, a housing 10, respectively 30. De conventionally, each terminal of a power terminal block 40 comprises a screw of clamping 42 cooperating with a clamping cage 43 located in the opening 44 corresponding terminal. When tightening the screw 42, the cage 43 is deformed so as to what it comes to grip the drivers present in the opening 44. This tightening makes it possible to make an effective electrical connection of the bar of connection with any other conductor previously inserted in the opening 44, and it is also possible to fix the connection terminal block 40 against the housing of the apparatus light switch.

In addition, to facilitate the guiding, positioning and maintenance of terminal blocks 40 on the housing 10, respectively 30, of an electrical device, at least one of the horizontal faces 41, 49 of the power terminal block 40 has 45. These holding members 45 are designed to cooperate with complementary means downstream 15a and upstream 15b, respectively 35a and 35b, arranged at the downstream connection areas 14a and upstream 14b, respectively 34a and 34b, housing.

According to a preferred embodiment, these holding members are constituted by one or more lugs 45 present on a front portion of the horizontal face 41 of the power terminal block 40. When the power terminal block 40 is mounted against a housing 10,30 of a device, these pins are introduced into as many cavities 15a, 15b, respectively 35a, 35b, present on a front part of the connecting pads 14a, 14b, respectively 34a, 34b, of the housing. Preferably, these cavities 15a, 15b, 35a, 35b are of complementary shape to the 45. Once the terminal strips engaged in the openings 44 and before tightening the screws 42, the definitive positioning of the terminal block 40 is then done by sliding towards the rear of the horizontal face 41 along the connection range 14a, 14b, 34a, 34b as far as the stop against the bearing surface 13a, 13b, 33a, 33b. During this operation, the lugs 45 are engaged in the corresponding cavities 15a, 15b, 35a, 35b contributing to the maintenance and positioning of the terminal block against the housing 10,30.

The removable power terminal block 40 is advantageously symmetrical by relative to a median vertical plane so that the same terminal block 40 can indifferently be mounted downstream but also upstream of enclosures after turnaround. In the examples presented, the horizontal face 41 has two pins 45 disposed on either side of the median vertical plane.

In addition, the housing 10 shown in Figure 7 further comprises by construction a recess of a height H on a front part of the connection pads horizontal downstream 14a and upstream 14b, in front of the outlets of the downstream connection bars 19a and upstream 19b. The connection strips are then preferentially flush at the setback. This recess makes it possible to form connection areas horizontal downstream 16a and upstream 16b. These downstream link 16a and upstream 16b are therefore further away from the back side of the housing 10 and closer to each other than the downstream connection pads 14a and upstream 14b. The cavities downstream 15a and upstream 15b in this case are placed in front of the downstream link 16a and upstream 16b housing 10, so as to accommodate holding pins belonging to connecting elements or shims.

This recess serves to insert a multipole link element 80 such that that schematized in Figures 8 and 9. A connecting element 80 consists of a piece in insulating material of parallelepipedal shape. It has two horizontal faces opposed 84,86 and a rear face 81. First and second pins connecting conductors 82 and 83, which may be of similar section to the strips 19 connection boxes, out perpendicular to the first side horizontal 84, along the vertical axis X in the same direction. On the front of the second horizontal face 86, the connecting element 80 comprises holding pins 85 which can cooperate with cavities 15a, 15b, 25a, 25b of the housing 10,20. On the front of the first horizontal face 84, the connecting element 80 comprises cavities 87 which can cooperate with lugs 45,45 'of 40,40' power terminals.

In the case of three-pole devices, the first pins 82 and the second pins 83 thus each comprise three separate pins. Inside a connecting element 80, the first pins 82 are electrically connected to a at the second pins 83 is directly pole by pole, or differently depending on the desired logic function (see below).

The height H of a connecting element 80 (FIG. 8) is substantially equal to height H of the offset corresponding to the offset between a range of connection 14a, 14b and a connecting pad 16a, 16b (Fig. 7). Similarly, depth of a connecting element 80 is substantially equal to that of a range of link 16a, 16b. The connecting element 80 is therefore insertable between the housing of a device electrical and a removable power terminal block. So when the second side horizontally 86 of a connecting element is positioned on a connection area 16a, 16b, this connecting element 80 completely occupies the space created by the recess, of so that its first horizontal face 84 is at the same horizontal level as the beach connection 14a, 14b, thus not impeding the establishment of a terminal block power 40, but on the contrary contributing to its maintenance.

In addition, the pins 82, 83 are preferably flush with the rear face 81 of the connecting element 80, as shown in Figures 2 and 9, which allows, during the positioning a connecting element 80 in the assembly, to press the pins 82.83 in front of the terminal strips 19a, 19b, 29a, 29b. The pins and bars of connection in contact will then be maintained by clamping into openings 44 power terminal blocks 40.

When there is no link element 80 to be positioned on a link area 16a, 16b of a housing 10, the space created by the step between the ranges of connection and connection can then be easily filled by a shim 70 (see figure 10) of appropriate size, that is to say of a height H, of a depth equal to that of the connecting range and a width substantially equal to that of the housing 10, for improve the maintenance of a power terminal block on the housing.

A protection and control assembly 5 shown in FIGS. 2 includes three electrical switches. This set 5 aims to create a motor starter kit that can easily and without wiring an additional logical function, such as an inverting function (inversion of motor speed), a speed selection function (PV / GV switching: small speed / high speed), a star-delta start function, or others.

A first device, comprising a housing 10, and a second device, comprising a housing 20 identical to the housing 10, are of the contactor type. A third apparatus, comprising a housing 30, is of the circuit breaker type. The first device and the second apparatus are arranged next to each other in the same horizontal plane. They can be either juxtaposed against each other, or preferentially slightly spaced apart from one another to allow insertion between the two of a module of mechanical locking usable especially in the case of a reversing function. The third apparatus is arranged in a vertical plane above one or indifferently from the other of the first two devices.

In the assembly 5, the housing 30 is juxtaposed on the housing 10 (but could also be on the housing 20) in a direction parallel to the vertical axis X of the bars connection so that the downstream bearing surface 33a of the housing 30 is plated against the upstream support pad 13b of the housing 10. The overall size of the assembly 5 is therefore minimum since the enclosures of electrical apparatus 10,30 are directly on one another, with no space between them.

Upstream of the assembly 5, a removable upstream power terminal block 60 is mounted against the upstream connecting range 34b of the housing 30 of the third device. Tightening the screws of the upstream terminal block 60 makes it possible to fix it against the housing 30 and to electrically connecting the upstream connection strips 39b to conductors upstream. Similarly, downstream of the assembly 5, two downstream power terminals 50,50 'are mounted against the downstream connection pads 14a, respectively 24, housings 10, respectively 20. The tightening of the screws of these downstream terminal blocks 50, respectively 50 ', makes it possible to fix them against the housing 10, respectively 20, and electrically connect their downstream connection strips to downstream outside conductors. In addition, a power terminal block 40 'is placed in upstream of the housing 20 of the second device.

The difference between the support range and the connection range of a same horizontal face of all housings is designed so that when the housing 30 of third device is juxtaposed on the housing 10 of the first device by their beach of support, the space existing between the downstream connection zone 34a of the housing 30 and the upstream connection zone 14b of the housing 10 allows to house a terminal block of removable power 40 common to the housings 30 and 10. The holding pins 45 of this common power terminal block 40 are associated either with the cavities 35a, 35b of the housing 30, that is to the cavities 15a, 15b of the housing 10. This common terminal block 40 makes it possible to electrically connect the downstream connection bars 39a of the housing 30 with the upstream connection strips 19b of the housing 10, but also allows the fixation boxes 30 and 10 between them.

To effectively ensure this electrical connection, the downstream bars 39a housing 30 of the third device are slightly offset from the bars upstream 19b of the housing 10 of the first apparatus in a direction perpendicular to the axis vertical X bars. In the schematized examples, the downstream bars 39a of the housing 30 are shifted rearwardly with respect to the upstream strips 19b of the housing 10 (see Figure 2). This offset is sufficient to not interfere with the juxtaposition of enclosures 10 and 30 during the assembly of the assembly 5, but nevertheless allows, once the screws 42 of the common terminal block 40, that the downstream bars 39a of the third apparatus are overlap and are flush with the upstream strips 19b of the first device of to form a sufficient electrical contact area, consistent with the current electrical power likely to flow in the protection and control system 5.

Advantageously, the common terminal block 40 as well as the power terminal blocks 40 ', 50, 50' and 60, are all identical to the removable power terminal block 40 described previously. This reduces the number of different parts needed for assembly of the assembly 5 since all the power terminal blocks are interchangeable between them. They include holding pins 45,55,65 cooperating with the cavities of complementary shape of the housings 10, 20, 30 so as to facilitate the guiding, the positioning and the maintenance of the terminal blocks against the housings of electrical appliances.

In all of Figures 1 and 2, the housings 10 and 20 are interconnected by an upstream link element 80 and a multipolar downstream link element 80 'of for example, to perform an inverter function. The upstream link element 80 is inserted into the upstream connection ranges of the housings 10 and 20 so that the first pins 82 of the upstream connecting element 80 are in contact with the upstream strips 19b of the housing 10 and the second pins 83 of the connecting element upstream 80 are in contact with the upstream bars 29b of the housing 20. In accordance in FIGS. 2 and 5, the common terminal block 40 thus makes it possible to clamp the pins together. 82, the upstream bars 19b of the housing 10 and the downstream bars 39a of the housing 30. The terminal block 40 'allows it to clamp together the pins 83 and 29b upstream bars of the housing 20.

The downstream link element 80 'is inserted into the downstream link housings 10 and 20. The first pins of the downstream connecting element 80 'are therefore in contact with the downstream strips 19a of the housing 10 and clamped together by the terminal block 50. The second pins of the downstream link element 80 'are in contact with the downstream strips 29a of the housing 20 and clamped together by the terminal block 50 '.

The internal wiring of the connection pins inside the elements of link 80,80 'makes it possible to perform a logic function. For an inverter function with three-pole apparatus, the upstream link element 80 has a first pole of the first pins 82 which is internally connected to the same pole corresponding to the second pins 83, while the other two poles of first pins 82 are internally connected in reverse to the poles corresponding to the second pins 83. On the other hand, the poles of the first and second pins of the downstream link element 80 'are internally connected directly to a has a.

Thanks to this advantageous arrangement of the connecting elements 80,80 ', the assembly 5 is extremely simple to perform and does not present a clutter superior (center distance, height, depth) to that of a standard set of three electrical apparatus not including such connecting elements. The set 5 can so easily integrate into an existing cabinet or cabinet with other devices electric.

We can also design a similar protection and control system to the assembly 5 but having only one upstream link element 80 of which the pins 82,83 are connected internally directly pole to pole, without element of downstream link 80 '. This set then makes it possible to feed two contactors 10,20 from of the same upstream circuit breaker 30, for use in PV / GV switching, by example. The downstream connecting element 80 'absent can be replaced by two shims 70 between the housing 20 and the terminal block 50, and between the housing 30 and the terminal block 50 '.

Figure 10 shows another example of a protection and control according to the invention. This set 6 comprises a first apparatus 30, for example of circuit breaker type, and a second device 10, for example of the type contactor, placed next to the first apparatus 10. The assembly 6 comprises a terminal block removable upstream 60 for connecting the upstream connection strips 39b of the housing 30 of the first device with upstream outer conductors. The set 6 also includes a removable terminal block 50 for connecting the strips downstream connection 19a of the housing 10 of the second device with drivers downstream. The housings 10 and 30 are electrically connected to each other by a S-shaped serial link member 90 (see Fig. 11), having a portion central 91 located between two horizontal parts from which emerge first connection pins 92 and second connection pins 93, along an axis vertical, but in an opposite direction. Inside the element 90, the pins 92 and 93 are interconnected in direct pole by pole.

The first pins 92 are held in contact with the downstream strips 39a of the housing 30 with a removable terminal block 60 'and the second pins 93 are kept in contact with the upstream strips 19b of the housing 10 by means of a terminal block removable 50 '. The power terminal blocks 50, 50 ', 60, 60' are identical and interchangeable. Thus, the assembly 6 makes it possible to rapidly achieve an association in series of two electrical appliances (for example a circuit breaker / contactor) located one next to each other without the need for special cabling. The housings 10 and 30 are not not placed against each other, so as to authorize the insertion of the central part 91 of the connecting element 90 between the two. The width of the central portion 91 is example substantially equal to the width of a mechanical locking module used between two contactors, so as to standardize the differences between two electrical appliances located next to each other.

Advantageously, this arrangement makes it easy to make the connection and assembly of the assembly 6, even when the housings 10 and 30 of the devices are previously mounted on their support, frame, profile or platinum. Indeed, the element of 90 connection can then be mounted by the front of the set and position through holding pins, before the different power terminals are then positioned and screwed to obtain the assembly 6.

It is understood that one can, without departing from the scope of the invention, imagine other variants and refinements of detail and even consider the use of equivalent means.

Claims (10)

Protection and control assembly comprising a plurality of multipole electrical switchgear devices each having a housing (10, 20, 30) provided with upstream (19b, 29b, 39b) and downstream (19a, 29a, 39a) , which project from an upstream horizontal connection zone (14b, 24b, 34b), respectively downstream (14a, 24a, 34a), of the housing (10, 20, 30) along a vertical axis (X) and which are capable of being inserted into openings (44) of removable power terminals (40, 40 ', 50, 50', 60), characterized in that the assembly comprises at least one connecting element (80) which electrically connects the poles of a first and a second electrical device of the protection and control assembly, the connecting element (80) being arranged on the one hand between the housing (10) and a power terminal block (40). , 50) removable from the first electrical device, on the other hand between the housing (20) and a removable power terminal block (40 ', 50') d u second electrical appliance. Protection and control assembly according to Claim 1, characterized in that each connecting element (80) has first connection pins (82) connected to second connection pins (83) projecting along the vertical axis (X) and which are insertable into openings (44) of removable power terminals. Protection and control assembly according to claim 2, characterized in that the connecting pins (82, 83) of a connecting element (80) are pressed against the terminal strips of the electrical appliances. Protection and control assembly according to Claim 2, characterized in that the connecting element (80) has holding members (85) able to cooperate with complementary means (15a, 15b, 25a, 25b) arranged in the enclosures (10,20) electrical appliances. Protection and control assembly according to Claim 4, characterized in that the holding members consist of one or more lugs (85, 86) arranged on at least one horizontal face (81) of the connecting element (80). . Protection and control assembly according to claim 2, characterized in that the assembly comprises an upstream connecting element (80) whose first pins (82) are in contact with the upstream connection strips (19b) of the housing (10). ) of the first electrical device and whose second pins (83) are in contact with the upstream connection strips (29b) of the housing (20) of the second electrical device. Protection and control assembly according to claim 6, characterized in that the assembly comprises a downstream connecting element (80 ') whose first pins are in contact with the downstream connection strips (19a) of the housing (10) of the first electrical device and whose second pins are in contact with the downstream connection strips (29a) of the housing (20) of the second electrical device. Protection and control assembly according to Claim 7, characterized in that the upstream connecting element (80) connecting the upstream strips (19b, 29b) of the housings (10, 20) of two three-pole electrical appliances internally performs a function inversion of two poles of electrical devices. Protection and control assembly according to Claim 2, characterized in that the assembly comprises a series link element (90) comprising first pins (92) which are in contact with the downstream connection bars (39a) of the housing ( 30) of a first electrical apparatus and having second pins (93) which are in contact with the upstream connection strips (19b) of the housing (10) of a second electrical appliance, positioned next to the first electrical appliance. Switched electrical apparatus comprising a housing (10) provided with upstream (19b) and upstream (19a) upstream connection conductor strips (19a) projecting along a vertical axis (X) over an upstream horizontal (14b) downstream connection region, respectively downstream (14a), the housing (10) and which can be inserted into openings (44) of removable power terminals (40), characterized in that the electrical apparatus is adapted to be integrated in a protective assembly and control according to one of the preceding claims.

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