AU2022203451A1 - Electrical protection device - Google Patents

Abstract

An electrical protection device (1) comprising: a slider (10), to which the mobile contact (43) of a conduction track (4) is attached; a contact spring (13), applying a contact force (F13) to the mobile contact, driving the slider; a switching control (5); and a trip (8). For a miniaturized and rapid tripping, the device (1) comprises a hook (15), borne by the slider and able to move, between: a locked position, to slave the configuration of the switching control to the position of the slider, and an unlocked position to allow the slider to be moved from the "set" position to the tripped position even if the switching control is in a closed configuration. The trip causes the hook to flip into the unlocked position, being excited to do so by an electrical fault of a first type. 1/8 Fig1 CINj / L J L

Description

1/8

Fig1

CINj

L J L / ELECTRICAL PROTECTION DEVICE

PRIORITY This application claims priority from French Patent Application n° FR 2105285 filed May 20, 2021. The entire content of this priority application is hereby incorporated by reference.

TECHNICAL FIELD The present invention relates to an electrical protection device.

BACKGROUND EP1884976A1 describes a switching device that can be incorporated into an electrical distribution board of an electrical installation. The switching device comprises a handlever which, in order to control the opening and closing of two mobile contacts, controls a mobile core by means of a connecting rod. The mobile contacts are themselves attached to the mobile core by a respective connecting rod so as to be actuated by the mobile core. In order to define the travel of each mobile contact under the action of the movement of the mobile core, the housing comprises a respective curved rail for each mobile contact, which guides one end of the mobile contact. For each mobile contact there is also provided a respective spring which keeps the mobile contact in contact with a fixed contact when the mobile contact is in the closed position, or in contact with a pin formed by the housing, when the mobile contact is in the open position, thereby keeping the mobile contact some distance away from the fixed contact. The switching device also comprises an electromagnetic actuator and a thermal actuator, which are configured to trip the mobile contacts into an open position. To do that, these actuators cause the flipping of a lever which releases the mobile core, thereby allowing the mobile contacts to be returned to the open position, together with the handlever, by means of the mobile core. There is an ever-present need to miniaturize this type of device, for example in order to incorporate even more functions into a housing without increasing the size of the device and/or in order to reduce the size of the device within the electrical distribution board. Furthermore, it is desirable to make provision that, in the event of an electrical fault, the mobile contacts open very rapidly, in order to provide good protection. The invention therefore notably seeks to obtain a novel electrical protection device that is miniaturized and that trips rapidly in the event of electrical fault.

SUMMARY The subject of the invention is an electrical protection device comprising: a housing; a first conduction track comprising a first mobile contact which is mobile with respect to the housing, between: a conduction position in which the first mobile contact electrically connects a first input terminal to a first output terminal belonging to the first conduction track, and an isolation position in which the first input terminal and the first output terminal are electrically isolated from one another. The electrical protection device further comprises a slider, to which the first mobile contact is attached, the slider being able to slide with respect to the housing along a slider axis, between a set position in which the first mobile contact is in the conduction position, and a tripped position in which the first mobile contact is in an isolation position; a first contact spring, applying a first contact force to the first mobile contact by bearing against the housing, the first mobile contact having a tendency to drive the slider towards the tripped position when the slider is in the set position, under the action of the first contact force; a switching control which is configured to move between a closed configuration and an open configuration; and a first trip, configured to be excited by an electrical fault of a first type. According to an aspect of the invention, the electrical protection device further comprises a first hook which is borne by the slider, being mobile with respect to the slider between: a locked position, for slaving the configuration of the switching control to the position of the slider, so that the slider is in the tripped position when the switching control is in the open configuration, and so that the slider is in the set position when the switching control is in the closed configuration, the switching control thus keeping the slider in the set position, and an unlocked position in which the first hook allows the slider to be moved from the set position to the tripped position even if the switching control is in the closed configuration. According to an aspect of the invention, the first trip is configured to trip a flipping of the first hook from the locked position to the unlocked position when the first trip is excited by an electrical fault of the first type. One aspect of the invention is that of making provision for the slider to be selectively slaved to, and released from, the switching control, using the first hook borne by the slider itself. When no electrical fault is occurring, an assembly comprising the slider and the first contact is advantageously slaved to the switching control so that a user can control the first mobile contact via the switching control. When an electrical fault is occurring, the slider is released by moving of the first hook into an unlocked position so that the first mobile contact is quickly placed in an isolation position under the action of thefirst contact spring, whatever the configuration of the switching control. Provision is advantageously made for the switching control then to be returned to the open configuration by separate means. Unlike the provisions made by the prior art, the idea of carrying the first hook on the slider allows these two elements to be physically grouped with one another in order to improve the overall compactness of the electrical protection device while at the same time allowing the first trip to flip the first mobile contact very quickly into the isolation position when an electrical fault of the first type occurs. As a preference, the switching control comprises: a handlever which is rotationally mobile with respect to the housing about a handlever axis, the slider axis being orthoradial with respect to the handlever axis; a control rod which comprises: a primary end via which the control rod is attached to the handlever being able to pivot with respect to the handlever about a primary axis parallel to the handlever axis; and a secondary end which is captured by the first hook when the first hook is in the locked position, so as to slave the configuration of the switching control and the position of the slider. As a preference, the handlever is rotationally mobile: as far as a closed orientation, when the switching control is in the closed configuration, in which the handlever is rotationally in abutment against the housing, and as far as an open orientation, when the switching control is in the open configuration. As a preference, the switching control comprises a control spring which applies a control force to the handlever, with respect to the housing, tending to cause the handlever to rotate as far as the open orientation. As a preference, the control rod is arranged in such a way that, when the configuration of the switching control is slaved to the position of the slider, and the switching control is in the closed position and the slider is in the set position: the slider keeps the handlever rotationally in abutment against the housing, in the closed orientation, by means of the control rod under the action of the first mobile contact receiving the first contact force, and the control rod opposes a movement of the slider towards the tripped position by bearing against the handlever which is itself rotationally in abutment against the housing in the closed orientation. As a preference, the electrical protection device further comprises: a second hook which is bome by the slider, being mobile with respect to the slider independently of the first hook between a locked position and an unlocked position; a second trip configured to trip a flipping of the second hook from the locked position to the unlocked position when the second trip is excited by an electrical fault of a second type. As a preference, in order to be mobile with respect to the slider, the first hook and the second hook are able to pivot independently with respect to the slider about the one same hook axis, such that: when the first hook and the second hook are in the locked position, the secondary end is captured radially between the first hook and the second hook, thus slaving the configuration of the switching control to the position of the slider; when the first hook is in the unlocked position while the second hook is in the locked position, the first hook is distant from the secondary end, thus allowing the slider to be moved from the set position to the tripped position; and when the second hook is in the unlocked position while the first hook is in the locked position, the second hook is distant from the secondary end, thus allowing the slider to be moved from the set position to the tripped position. As a preference, when the secondary end is captured radially between the first hook and the second hook and the slider is in the set position: the secondary end comes to bear radially against a first cam surface belonging to the first hook, while the first cam surface is positioned at a first angle with respect to the primary axis, about the secondary end; and the secondary end comes to bear radially against a second cam surface belonging to the second hook, while the second cam surface is positioned at a second angle with respect to the primary axis, about the secondary end, so that the secondary end is interposed between the first cam surface and the second cam surface and so that the first angle and the second angle have different values. As a preference, the electrical protection device comprises a trigger, which is bome by the slider being mobile with respect to the slider between: a retention position in which the trigger holds the first hook in the locked position, and a release position in which the trigger allows the first hook to transition from the locked position to the unlocked position. As a preference, the first trip is configured to move the trigger from the retention position to the release position in order to trigger the flipping of the first hook from the locked position to the unlocked position when the first trip is excited by an electrical fault of the first type. As a preference, the electrical protection device comprises a trigger spring that tends to return the trigger to the retention position and the first hook to the locked position, when the trigger is in the release position and the first hook is in the unlocked position. As a preference, the trigger is able to pivot with respect to the slider about a first trigger axis, and comprises: a retention end which, when the trigger is in the retention position, collaborates mechanically with a catching end belonging to the first hook so that the trigger holds the first hook in the locked position; and an actuation end by means of which the first trip moves the trigger from the retention position to the release position when the first trip is excited by an electrical fault of the first type.

As a preference, the electrical protection device further comprises a reset lever portion, which is bome by the slider being mobile with respect to the slider between an uncaught position and a reset position, the reset lever portion being configured to: drive the trigger from the retention position to the release position when the reset lever portion is driven from the reset position to the uncaught position, and reset the first trip when the reset lever portion is driven from the uncaught position to the reset position. As a preference, the first trip is configured to move the trigger from the retention position to the release position by moving the reset lever portion from the reset position to the uncaught position. As a preference, the housing comprises a reset pin for driving the reset lever portion from the uncaught position to the reset position under the action of a movement of the slider from the set position to the tripped position. As a preference, the electrical protection device comprises an indicator, which is mobile with respect to the housing between an initial position and an indicating position. As a preference, the trigger is configured to move the indicator as far as the indicating position when the trigger is moved from the retention position as far as the release position. As a preference, the slider is configured to move the indicator as far as the initial position when the slider is moved from the tripped position to the set position. As a preference, the first conduction track comprises a first fixed contact against which the first mobile contact bears in a first direction of contact perpendicular to the slider axis when the first mobile contact is in the conduction position, for electrically connecting the first input terminal to the first output terminal, the first mobile contact being at some distance from the first fixed contact when the first mobile contact is in the isolation position, so that the first input terminal and the first output terminal are isolated from one another. As a preference, the first contact spring is configured so that the first contact force keeps the first mobile contact pressed against the first fixed contact in the first direction of contact when the first mobile contact is in the conduction position. As a preference, the electrical protection device comprises: a second conduction track electrically isolated from the first conduction track and comprising a second mobile contact and a second fixed contact, the second mobile contact being attached to the slider and being mobile with respect to the housing, between: a conduction position in which the slider is in the set position and the second mobile contact is pressed against the second fixed contact in a second direction of contact which is the opposite direction to the first direction of contact so as to electrically connect a second input terminal to a second output terminal belonging to the second conduction track, and an isolation position in which the slider is in a tripped position and the second mobile contact is positioned away from the second fixed contact so that the second input terminal and the second output terminal are electrically isolated from one another. As a preference, the electrical protection device comprises a second contact spring, applying a second contact force to the second mobile contact by bearing against the housing, the second mobile contact tending to drive the slider towards the tripped position when the slider is in the set position, under the action of the second contact force, the second contact spring being configured so that the second contact force keeps the second mobile contact pressed against the second fixed contact in the second direction of contact when the second mobile contact is in the conduction position.

DRAWINGS The invention will be better understood and further advantages thereof will become apparent in the light of the following description, which sets out examples in accordance with the principle of the invention and which are illustrated by the following attached figures.

[FIG 1] Figure 1 is a side view of an electrical protection device according to one embodiment according to the invention, the electrical protection device being shown in a closed configuration, in which a switching control is in a closed configuration, mobile contacts are in a conduction position, a slider is in a set position, hooks are in a locked position and triggers are in a retention position.

[FIG 2] Figure 2 is a side view of the electrical protection device of Figure 1, from a different angle, the electrical protection device being shown in the closed configuration.

[FIG 3] Figure 3 is a partial side view of the device of the preceding figures, from the same angle as in Figure 1, in which the electrical protection device is shown in an open configuration, in which the switching control is in the open configuration, the mobile contacts are in the isolation position, the slider is in the tripped position, the hooks are in the locked position and the triggers are in the retention position.

[FIG 4] Figure 4 is a partial side view of the device of the preceding figures, from the same angle as in Figure 2, in which the electrical protection device is shown in the open configuration.

[FIG 5] Figure 5 is a partial side view of the device of the preceding figures, from the same angle as in Figure 1, in which the electrical protection device is shown in a first tripped configuration, in which the switching control is in the closed configuration, the mobile contacts are in the isolation position, the slider is in the tripped position, one of the hooks is in the unlocked position and its trigger is in the release position, while the other hook is in the locked position and its associated trigger is in the retention position.

[FIG 6] Figure 6 is a partial side view of the device of the preceding figures, from the same angle as in Figure 2, in a second tripped configuration in which the switching control is in the closed configuration, the mobile contacts are in the isolation position, the slider is in the tripped position, one of the hooks is in the locked position and its trigger is in the release position, while the other hook is in the locked position and its associated trigger is in the retention position.

[FIG 7] Figure 7 is a perspective view of part of the electrical protection device of the preceding figures.

[FIG 8] Figure 8 is a side view of part of the electrical protection device, in the same configuration and from the same angle as Figure 1.

DETAILED DESCRIPTION Figures 1 to 6 show an electrical protection device 1 according to a first embodiment of the invention. The device 1 is configured to be incorporated into a modular electrical distribution board, for an electrical installation, for example equipping a building. The device 1 of the present example comprises a housing 2, conduction tracks 3 and 4, a switching control 5 and trips 6, 7 and 8, an arc-extinguishing chamber 9, a slider 10, contact springs 12 and 13 and hooks 14 and 15. In Figures 1 to 6, the housing 2 has been sectioned in order to show its internal contents. The device 1 defines a width direction X1, a depth direction Y1, and a height direction ZI, which are mutually perpendicular and fixed with respect to the housing 2. As a preference, when the device 1 is incorporated into the electrical distribution board, the height direction Z Iis directed vertically upwards. The housing 2 constitutes an essentially closed and electrically insulating casing. The housing 2 advantageously comprises a front 21 and a back 22, distributed in the direction Yl, with the front 21 in the direction Y1 with respect to the back 22. The housing 2 advantageously comprises a lower end 23 and an upper end 24 distributed in the direction ZI, with the upper end 24 in the direction ZI with respect to the lower end 23. The housing advantageously comprises a right side and a left side, the sides preferably being planar and parallel, distributed in the direction X1, with the left side in the direction X1 with respect to the right side. The front 21 and the back 22 as well as the left and right sides connect the end 23 to the end 24 in the direction Z1. The front 21 and the back 22 each connect the right side to the left side in the direction X1. Each side connects the back 22 to the front 21 in the direction Y1. As a preference, the housing 2 comprises an internal partition 25 which extends parallel to the directions Y1 and ZI and divides an internal volume of the housing 2 into a right-hand compartment 26 visible in Figures 1, 3 and 5, and a left-hand compartment 27 visible in Figures 2, 4 and 6. The right-hand compartment 26 and left-hand compartment 27 are distributed in the direction X1. The right-hand compartment 26 is delimited by the partition 25 and the right side in the direction X1, by the ends 23 and 24 in the direction ZI, and by the front 21 and the back 22 in the direction Yl. The left-hand compartment 27 is delimited by the partition 25 and the left side in the direction X1, by the ends 23 and 24 in the direction Z1, and by the front 21 and the back 22 in the direction Y. In order to be incorporated into the electrical distribution board, the device 1 is advantageously designed to be fixed to a rail belonging to the electrical distribution board. For that, the device 1 advantageously comprises, on the back 22, any suitable fixing means, such as a clip-on clamp, by means of which the device 1 can be fixedly attached to said rail. Therefore, the direction X1 is parallel to the rail. The same rail can thus support several protection devices of the same type as the device 1, positioned side-by-side next to one another along the rail, side against side, parallel to the direction X1. The device 1 is preferably a two-pole device, in so far as it comprises two conduction tracks 3 and 4 as illustrated in the figures. As an alternative, provision is made for the device 1 to be a single-pole device, comprising just one of the conduction tracks 3 and 4, or a multipole device, comprising more of such conduction tracks, for example a four-pole device with four conduction tracks. Provision is made for each conduction track to comprise an input terminal, an output terminal, a mobile contact and a fixed contact. The track 3 comprises an input terminal 31, an output terminal 32, a mobile contact 33 and a fixed contact 34, which are visible in Figures 1, 3 and 5. The track 4 comprises an input terminal 41, an output terminal 42, a mobile contact 43 and a fixed contact 44, which are visible in Figures 2, 4 and 6. As a preference, each conduction track is electrically isolated from the other conduction tracks. For that, as a preference, each conduction track is positioned wholly inside one of the respective compartments of the housing. Here, the track 3 is positioned in the compartment 26 and the track 4 is positioned in the compartment 27. The internal partition 25 is interposed between the tracks 3 and 4 to ensure that they are electrically isolated from one another.

The inlet terminals 31 and 41 are preferably positioned at the upper end 24 so that they can be electrically connected to respective power supply means belonging to the electrical distribution board. For example, the terminal 31 is connected to afirst comb busbar belonging to the electrical distribution board, while the input terminal 41 is connected to a second comb busbar belonging to the electrical distribution board. Each conduction track constitutes a distinct pole of the device 1. As a preference, the track 3 constitutes a phase pole, while the track 4 constitutes a neutral pole. In other words, each conduction track is designed to be raised to a distinct potential. As a preference, the device 1 is designed to be used at low voltage, which means to say at a voltage of between 100 V (volts) and 600 V, for example a voltage of 230 V. The output terminals 32 and 42 are preferably positioned at the lower end 23 so as to be able to be electrically connected to an electric circuit powering receiver loads, for example, in the case of a building, household electrical or lighting appliances. These electrical loads are therefore powered with the electrical power supplied to the input terminals 31 and 41 via the device 1. The fixed contact 34 is fixed relative to the housing 2 and is electrically connected to the terminal 31. The mobile contact 33 is electrically connected to the terminal 32. The fixed contact 34 is positioned in the direction ZI with respect to the mobile contact 33. As a preference, the mobile contact 33 comprises a conducting end 35 and an attachment end 36 which are positioned in a plane parallel to the directions Y1 and ZI. The mobile contact 33 is mobile between a conduction position shown in Figure 1 and an isolation position shown in Figures 3 and 5. This movement is in the plane parallel to the directions Y1 and Z1. The housing 2 comprises a curved guide rail 38 borne by the partition 25 to guide the end 36 of the contact 33 in a curved linear path, in the plane parallel to the directions Y1 and ZI. Thus, in the conduction position, the end 36 is positioned at a first end of the curved guide rail 38. In the isolation position, the end 36 is positioned at a second end of the curved guide rail 38, situated in the directions Y1 and Z Iwith respect to the first end. As it passes from one end of the curved guide rail 38 to the other, the end 36 advantageously describes a curve in the plane parallel to the directions Y1 and Z1, which is preferably centred on the fixed contact 34. In the conduction position, the mobile contact 33 is in electrical contact with the fixed contact 34, and this electrically connects the input terminal 31 to the output terminal 32. In particular, the mobile contact 33 is then pressed against the fixed contact 34 in a direction of contact Z34 which is parallel to and in the same direction as the direction Zi. In particular, the mobile contact 33 is pressed against the fixed contact 34 via the end 35. This pressure is preferably a point load, which is to say that the end 35 is not prevented from rotating about an axis parallel to the direction X1. In the conduction position, the mobile contact 33 is some distance away from a flip-over pin 28 belonging to the housing 2, in a direction opposite to the direction of contact Z34. The pin 28 is for example borne by the partition 25. The fixed contact 34 is positioned in the direction Zi and in an opposite direction to the direction Y1 with respect to the flip-over pin 28. The flip-over pin 28 is positioned between the slider 10 and the fixed contact 34. In the conduction position, the end 36 of the contact 33 is positioned at the end of the rail 38 which is in the opposite direction to the direction Z1, thereby ensuring that the contact 33 is distant from the flip-over pin 28 while still being in contact with the fixed contact 34, the mobile contact 33 therefore being positioned obliquely, with the end 35 in the direction Z Iwith respect to the end 36. In the isolation position, the mobile contact 33 is some distance away from the fixed contact 34 so as to be electrically isolated therefrom, thereby breaking the electrical connection between the terminals 31 and 32 so that the terminals 31 and 32 are electrically isolated from one another. In particular, the conducting end 35 is distant from the fixed contact 34 in an opposite direction to the direction of contact Z34. In the isolation position, the mobile contact 33 is pressed against the flip-over pin 28, in the direction Z34. In particular, the mobile contact 33 comes to bear against the pin 28 via a bearing surface provided between its ends 35 and 36. This bearing surface of the mobile contact 33 and the pin 28 have complementing shapes so as to achieve pressure in a plane parallel to the directions Y1 and Z1, and this has a tendency to orient the contact 33 in an orientation, in this instance substantially parallel to the direction Y1, in which the conducting end 35 is distant from the fixed contact 34. When the mobile contact 33 is in the isolation position, the end 36 of the mobile contact 33 is positioned at the end of the rail 38 that is in the direction Z, so that the mobile contact 33 overall is pivoted about an axis parallel to the direction X1, with respect to its orientation in the conduction position. The contact spring 12 is preferably positioned in the compartment 26. The purpose of the contact spring 12 is to apply, through elasticity, a force F12 referred to as the "contact force" to the mobile contact 33 by bearing against the housing 2. This force F12 is directed obliquely, so that it has a component in the direction Zi and, at least when the contact 33 is in the conduction position, a component in the direction Y. For that, for example, the spring 12 is a torsion spring which is attached to the contact 33 at a point intermediate between the ends and 36 and is attached to the housing 2 via the partition 25, in the direction ZI and Y1 with respect to its point of attachment on the contact 33. Provision is advantageously made for the point of attachment of the spring 12 to the contact 33 to be at the height of the pin 28. The component of the force F12 in the direction ZI keeps the contact 33 pressed against the contact 34 for the conduction position, and keeps the contact 33 pressed against the pin 28 for the isolation position. The fixed contact 44 is fixed with respect to the housing 2 and is electrically connected to the terminal 42. The mobile contact 43 is electrically connected to the terminal 41. The mobile contact 43 is positioned in the direction Z1 with respect to the fixed contact 44. As a preference, the mobile contact 43 comprises a conducting end 45 and an attachment end 46 which are positioned in a plane parallel to the directions Y1 and ZI. The mobile contact 43 is mobile between a conduction position shown in Figure 2 and an isolation position shown in Figures 4 and 6. This movement occurs in the plane parallel to the directions Y1 and ZI. In other words, the movement of the mobile contacts 33 and 43 occurs in parallel. The movements of the mobile contacts 33 and 43 mirror one another about a plane parallel to the directions Y1 and ZI, with an offset in the direction X1. The housing 2 comprises a curved guide rail 48 bome by the partition 25 on an opposite face relative to the rail 38. The curved guide rail 48 guides the end 46 of the contact 43 in a curved linear path in the plane parallel to the directions Y1 and ZI. Thus, in the conduction position, the end 46 is positioned at a first end of the curved guide rail 48. In the isolation position, the end 46 is positioned at a second end of the curved guide rail 48, situated in an opposite direction to the direction ZI with respect to the first end. On transitioning from one end of the curved guide rail 48 to the other, the end 46 advantageously describes a curve in the plane parallel to the directions Y1 and ZI, preferably centred on the fixed contact 44. In the conduction position, the mobile contact 43 is in electrical contact with the fixed contact 44, and this electrically connects the input terminal 41 to the output terminal 42. In particular, the mobile contact 43 therefore presses against the fixed contact 44 in a direction of contact Z44 which is parallel to and in the opposite direction from the direction ZI. In other words, the direction Z44 is the opposite of the direction Z34. In particular, the mobile contact 43 presses against the fixed contact 44 via the end 45. This pressure is preferably a point load, which is to say that the end 45 is not prevented from rotating about an axis parallel to the direction X1. In the conduction position, the mobile contact 43 is some distance away from a flip-over pin 29 belonging to the housing 2, in an opposite direction to the direction of contact Z34. The pin 29 is for example borne by the partition 25 on an opposite face with respect to the one that bears the pin 28. The pin 29 is positioned in the directions Y1 and ZI with respect to the fixed contact 44. The pin 29 is positioned between the slider 10 and the fixed contact 44. In the conduction position, the end 46 of the contact 43 is positioned at the end of the rail 48 that is in the direction Z, ensuring that the contact 43 is distant from the flip-over pin 29 while still being in contact with the fixed contact 44, the mobile contact 43 therefore being positioned obliquely with the end 46 in the direction ZI with respect to the end 45. When the contacts are in the conduction position, they are therefore arranged in a cross shape or in a V shape relative to one another. In the isolation position, the mobile contact 43 is some distance away from the fixed contact 44 so as to be electrically isolated therefrom, and this breaks the electrical connection between the terminals 41 and 42 so that the terminals 41 and 42 are electrically isolated from one another. In particular, the conducting end 45 is distant from the fixed contact 44 in a direction opposite to the direction of contact Z44. In the isolation position, the mobile contact 43 presses against the flip-over pin 29, in the direction Z44. In particular, the mobile contact 43 comes to bear against the pin 29 via a bearing surface provided between its ends 45 and 46. This bearing surface of the mobile contact 43 and the pin 23 have complementing shapes to obtain pressure in a plane parallel to the directions Y1 and Z1, this having a tendency to orient the contact 43 in an orientation, here substantially parallel to the direction Y1, in which the conducting end 45 is distant from the fixed contact 44. When the mobile contact 43 is in the isolation position, the end 46 of the mobile contact 43 is positioned at the end of the rail 48 that is the opposite to the direction ZI so that the mobile contact 43 overall is pivoted about an axis parallel to the direction X1 with respect to its orientation in the conduction position. In the example illustrated, in the isolation position, the contacts 33 and 43 are parallel to one another. The contact spring 13 is preferably positioned in the compartment 27. The contact spring 13 has the function of applying, through elasticity, a force F13 known as the "contact force" to the mobile contact 43, by bearing against the housing 2. This force F13 is directed obliquely so as to have a component in a direction opposite to the direction ZI and, at least when the contact 33 is in the conduction position, a component in the direction Yl. For that, for example, the spring 13 is a torsion spring which is attached to the contact 43 at a point intermediate between the ends 45 and 46, and attached to the housing 2 via the partition 25 in a direction opposite to the direction ZI and in the direction Y1 with respect to its point of attachment to the contact 43. Provision is advantageously made for the point of attachment of the spring 13 to the contact 43 to be at the height of the pin 29. In other words, the springs 12 and 13 are arranged in a cross or in a V shape. The component of the force F13 opposite to the direction ZI keeps the contact 43 pressed against the contact 44 for the conduction position, and keeps the contact 43 pressed against the pin 29 for the isolation position. The arc-extinguishing chamber 9 seeks to give the device 1 the ability to break circuits by dissipating any electrical arc that may be created when the contacts 33 and 43 move from the conduction position to the isolation position. As a preference, the arc-extinguishing chamber 9 is positioned in the compartment 26, between the fixed contact 34 and the input terminal 31, along the back 22 of the housing 2. The arc-extinguishing chamber 9 comprises for example a stack of metal plates 91, sometimes referred to as splitters or separators, superposed some distance from one another, here in the direction Yl. The chamber 9 advantageously comprises insulating end plates between which the plates 91 are positioned. The plates 91 are, for example, held between the partition 25 and the right side of the housing 2. The fixed contact 34 is preferably extended by an arcing horn 92 belonging to the chamber 9 and bent over towards the inside of the arc extinguishing chamber 9. The arc-extinguishing chamber 9 also advantageously comprises a switching horn 93, electrically connected to the track 3, between the contact 33 and the terminal 32. The horns 92 and 93 are positioned facing one another. Thus, when the contact 33 is flipped over into the isolation position, any electrical arc that might be formed is conducted as far as the plates 91 by the horns 92 and 93 to be split and extinguished within the chamber 9. The input terminal 31 is interposed between the chamber 9 and the upper end 24. The trip 6 is configured to be excited by an electrical fault of a predetermined type, namely an electrical fault of the short circuit type, which is liable to occur between the conduction tracks 3 and 4 or between the conduction track 3 and electrical earth. The trip 6 is therefore notably excited by a short circuit that may occur downstream of the output terminals 32 and 42, on the electric circuit powered by the device 1 or on one of the loads thereof. In this instance, this is a phase-neutral or phase-earth short circuit. Here, the trip 6 is positioned, essentially, inside the compartment 26 and it is connected in series to the conduction track 3. In the direction Z1, the trip 6 is positioned between the terminal 31 and the fixed contact 34. In the direction Y1, the trip 6 is positioned between the arc extinguishing chamber 9 and the front 21.

The trip 6 takes the form of a magnetic actuator which here comprises an electromagnetic winding 61 and a mobile core 62 as best visible in Figures 1 and 5. The input terminal 31 is electrically connected to the fixed contact 34 via the trip, particularly by the electromagnetic winding 61. When a short circuit occurs between the tracks 3 and 4 or between the track 3 and electrical earth, notably downstream of the terminals 32 and 42, the strength of the current flowing through the winding 61 suddenly becomes very high so as to generate enough of an electromagnetic force to move the mobile core 62 from a rest position shown in Figure 1 to a tripped position shown in Figure 5 with respect to the housing 2. Here, the movement of the core 62 from the rest position to the tripped position occurs in an opposite direction to the direction ZI. Once the fault disappears, the current circulating through the winding 61 is no longer high enough to keep the core 62 in the tripped position, so that the core 62 is advantageously returned to the rest position, for example by a spring belonging to the trip 6 and not depicted. The trip 7 is configured to be excited by an electrical fault of another predetermined type, namely an electrical fault of the overload type, which is liable to occur between the conduction tracks 3 and 4. The trip 7 is therefore notably excited by an overload that may occur downstream of the output terminals 32 and 42 on the electric circuit powered via the device 1 or on one of the loads thereof. This type of fault may occur when one or more loads connected to this electric circuit make excessive demands for current. Here, the trip 7 is positioned entirely inside the compartment 26 and connected in series with the conduction track 3. In the direction Z1, the trip 7 is positioned between the terminal 32 and the mobile contact 33. The trip 7 takes the form of a thermal actuator which here is formed of an electrically conducting and heat-deformable bimetal strip. The mobile contact 33 is electrically connected to the output terminal 32 via the trip 7, namely via the bimetal strip. When an overload occurs, notably downstream of the terminals 32 and 42, the strength of the current circulating in the bimetal strip raises the temperature of the bimetal strip to the point of causing it to deform. When the fault disappears, the bimetal strip cools and reverts to its initial shape. The trip 8 is configured to be excited by an electrical fault of another predetermined type, namely an electrical fault of the differential type, which is liable to occur between the conduction tracks 3 and 4 or between the conduction track 3 and electrical earth. The trip 8 is therefore notably excited by an earth current leak, which might occur downstream of the output terminals 32 and 42, therefore causing a difference in values between the strength of the current circulating in the track 3 and the strength of the current circulating in the opposite direction in the track 4. Here, the trip 8 extends into both the compartments 26 and 27, passing through the partition 25. In the direction Z1, the trip 8 is advantageously positioned between, on the one hand, the output terminals 32 and 42 and, on the other hand, the contacts 33, 34, 43 and 44. As a preference, the trip 8 comprises a differential sensor 81 which extends into both the compartments 26 and 27, being positioned along the back 22 of the housing 2, and a relay 82 which extends only in the compartment 27, being positioned between the front 21 and the differential sensor 81. The differential sensor 81 for example comprises a ferromagnetic torus bearing two electromagnetic windings, one formed by the track 3 and the other formed by the track 4. The electromagnetic winding of the track 3 is advantageously formed by part of the track 3 which connects the mobile contact 33 to the terminal 32, more specifically by a part of the track 3 between the trip 7 and the output terminal 32. The electromagnetic winding of the track 4 is advantageously formed by a part of the track 4 between the fixed contact 44 and the output terminal 42. When there is an established difference in current strength between the tracks 3 and 4 that exceeds a certain threshold, an electromagnetic field is generated at the torus of the differential sensor 81. The relay 82 is configured to be actuated when this threshold is crossed, and this has the effect of actuating the movement of a mobile rod 83 belonging to the relay 82, from a rest position shown in Figures 2 and 6 to a trip position with respect to the housing 2. Here, the movement of the mobile rod 83 from the rest position to the tripped position occurs in the direction ZI. Once the mobile rod 83 has reached the tripped position, it needs to be returned to the rest position in order to reset the relay 82 and thus allow the relay 82 to actuate the rod 83 once again in the event of a differential fault, as explained hereinafter. The slider 10 is partially visible in Figures 1 to 6 and is best visible in Figure 7. The slider 10 comprises a part 101 which extends in the compartment 26 and a part 102 which extends in the compartment 27. The slider 10 passes through the partition 25. The slider 10 is attached to the housing 2 via an intermediate part that connects the parts 101 and 102, being able to slide with respect to the housing 2 along a slider axis Y10. The slider axis Y10 is advantageously parallel to the direction Y1 and fixed with respect to the housing 2. The axis Y10 is perpendicular to the directions Z34 and Z44. As a preference, the slider 10 slides along a cut-out made in the partition 25. The slider 10 slides with respect to the housing between a position referred to as the "set position", shown in Figures 1 and 2, and a position referred to as the "tripped position", shown in Figures 3 to 6. As a preference, the tripped position is in the direction Y1 with respect to the set position. As a preference, the slider 10 is prevented from rotating with respect to the housing 2. As a preference, the slider 10 is fixed with respect to the housing 2 in the directions X1 and ZI. The mobile contact 33 is attached to the slider 10 via the attachment end 36. In particular, the device 1 comprises a link rod 37 by means of which the contact 33 is attached to the slider 10, via an arm 103 formed by the part 101. The mobile contact 33 is able to pivot with respect to the link rod 37 about a first axis parallel to the direction X1 and centred on the attachment end 36. The link rod 37 is itself able to pivot with respect to the slider 10 about a second axis parallel to the direction X1. Thanks to this linkage via the link rod 37, the movement of the contact 33 is linked to the movement of the slider 10, and vice versa. It then follows that, when the slider 10 is driven from the tripped position to the set position, the slider 10 drives the contact 33 from the isolation position to the conduction position, via the link rod 37. When the slider 10 is driven from the set position to the tripped position, the slider 10 drives the contact 33 from the conduction position to the isolation position, via the link rod 37. Reciprocally, when the contact 33 is driven from the conduction position to the isolation position, the contact 33 drives the slider 10 from the set position to the tripped position, via the link rod 37. It then follows that the contact 33 transmits to the slider 10, via the link rod 37, the component of the force F12 in the direction Yl. The force F12 therefore has a tendency to return the slider 10 to the tripped position, and the contact 33 towards the isolation position. The spring 12 therefore performs two functions, namely of tending to return the assembly including the contact 33 and the slider 10 in the direction Y1 and of bringing the contact 33 to bear in the direction Z34. The mobile contact 43 is attached to the slider 10 via the attachment end 46. In particular, the device 1 comprises a link rod 47 by means of which the contact 43 is attached to the slider 10, via an arm 104 formed by the part 102. As a preference, the arms 103 and 104 are positioned one on each side of a plane containing the slider axis Y1O and parallel to the direction X1, the arm 104 being in the direction ZI with respect to the arm 103. The mobile contact 43 is able to pivot with respect to the link rod 47 about a first axis parallel to the direction X1 and centred on the attachment end 46. The link rod 47 is itself able to pivot with respect to the slider 10 about a second axis parallel to the direction X1. Thanks to this linkage via the link rod 47, the movement of the contact 43 is linked to the movement of the slider 10, and vice versa. It then follows that, when the slider 10 is driven from the tripped position to the set position, the slider 10 drives the contact 43 from the isolation position to the conduction position, via the link rod 47. When the slider 10 is driven from the set position to the tripped position, the slider 10 drives the contact 43 from the conduction position to the isolation position, via the link rod 47. Reciprocally, when the contact 43 is driven from the conduction position to the isolation position, the contact 43 drives the slider 10 from the set position to the tripped position, via the link rod 47. It then follows that the contact 43 transmits to the slider 10, via the link rod 47, the component of the force F13 in the direction Yl. The force F13, in addition to the force F12, therefore has a tendency to return the slider towards the tripped position, and the contact 43 towards the isolation position. The spring 13 therefore performs two functions, namely of tending to return the assembly including the contact 43 and the slider 10 in the direction Y1, and of bringing the contact 43 to bear in the direction Z44. As the directions Z33 and Z44 are opposite directions, the system is in equilibrium in the direction ZI. The hooks 14 and 15 are visible in Figures 1 to 6, but are best visible in Figures 7 and 8. The hooks 14 and 15 are attached to the slider 10. More specifically, the hook 14 is borne by the part 101, being arranged entirely inside the compartment 26, while the hook 15 is borne by the part 102, being positioned entirely inside the compartment 27. In other words, the slider 10 is positioned between the hooks 14 and 15, in the direction X1. In particular, the hook 14 comprises an attachment end 141 by means of which the hook 14 is attached to the slider 10, and a catching end 142, which is free with respect to the slider 10. In particular, the hook 15 comprises an attachment end 151, by means of which the hook 15 is attached to the slider 10, and a catching end 152 which is free with respect to the slider 10. The catching end 142 and the catching end 152 are positioned one on each side of a plane containing the axis Y1O and parallel to the direction X1. In other words, the hooks 14 and 15 are arranged like a gripper. As a preference, the catching end 142 and the arm 103 are positioned one on each side of this plane. As a preference, the catching end 152 and the arm 104 are positioned one on each side of this plane. With respect to the slider 10, the hook 14 is mobile between a position referred to as the "locked position", shown in Figures 1, 3, 7 and 8, and a position referred to as the "unlocked position", shown in Figure 5. In order to be mobile with respect to the slider 10, provision is preferably made for the hook 14 to be able to pivot with respect to the slider 10 about an axis X14 referred to as "hook axis", which is perpendicular to the slider axis Y1O and fixed with respect to the slider 10. The axis X14 is parallel to the direction X1. The axis X14 passes through the end 141. As a preference, the axis X14 intersects the axis Y10. In the locked position, provision is advantageously made for the catching end 142 to be closer to the end 152 than in the unlocked position.

With respect to the slider 10, the hook 15 is mobile between a position referred to as the "locked position", shown in Figures 2, 4, 7 and 8, and a position referred to as the "unlocked position", shown in Figure 6. The hook 15 is mobile independently of the hook 14, which means to say that the hook 15 can adopt the locked position or the unlocked position regardless as to whether the hook 14 is in the locked or unlocked position, and vice versa. In order to be mobile with respect to the slider 10, provision is preferably made for the hook 15 to be able to pivot with respect to the slider 10. As a preference, this pivoting of the hook 15 is also performed about the hook axis X14. In the locked position, provision is advantageously made for the catching end 152 to be closer to the end 142 than in the unlocked position. In other words, in passing from the locked position to the unlocked position the hooks 14 and 15 are separated from one another. The switching control 5 is advantageously positioned on the front face 21 of the housing 2. In this example, the switching control 5 comprises a handlever 51, which is to say a lever, that passes through the front 21. The handlever 51 comprises a base 52 by means of which the handlever 51 is mounted with the ability to pivot with respect to the housing 2 about a handlever axis X51 parallel to the direction X1 and fixed with respect to the housing 2. The handlever axis X51 is perpendicular to the slider axis Y10. More specifically, the slider axis Y10 is orthoradial to the handlever axis X51, which is to say orthogonal to a radius passing through the slider axis Y10. By rotating the handlever 51, the handlever 51 is able to move between a closed orientation shown in Figures 1, 2, 5 and 6 and an open orientation shown in Figures 3 and 4. When the handlever 51 is in the closed orientation, the switching control 5 is in a closed configuration. When the handlever 51 is in the open orientation, the switching control 5 is in an open configuration. The handlever 51 also comprises a handle 53, projecting out of the housing 2 and by means of which a user can actuate the handlever 51 to rotate it, and also allowing the current position of the handlever 51 to be seen. As a preference, the rotational travel of the handlever 51 with respect to the housing 2 is confined between the open and closed positions, by the handlever 51 coming into abutment in the open position against the housing 2, in a first direction of rotation, and in the closed position against the housing 2 in an opposite direction of rotation. In order to achieve such abutments, provision is made for example for the base 52 to come into abutment against the housing 2 when the handlever 51 is in the aforementioned positions. The switching control 5 advantageously comprises a spring 57, partially depicted in Figure 1 and omitted from the other figures and referred to as a "control spring" which, through elasticity, applies a force, referred to as "control force" to the handlever 51 by bearing against the housing 2. The control force produces a turning moment on the handlever 51, which tends to return the handlever towards the open orientation, from the closed orientation. This spring 57 for example takes the form of a torsion spring, in torsion about an axis parallel to the direction X1 and housed inside the base 52 of the handlever. The switching control 5 also comprises a control link rod 54 which is visible in Figures 1 to 6, being shown in broken line in Figures 3 and 5. The link rod 54 comprises a primary end 55, by means of which the link rod 54 is attached to the base 52 of the handlever 51. Via the primary end 55, the link rod 54 is able to pivot with respect to the base 52 about a primary axis X55. The primary axis X55 is parallel to the handlever axis X51, being positioned radially with respect to the handlever axis X51. To obtain this connection, the primary end 55 for example takes the form of a shaft extending along the axis X55 and housed in a bearing formed by the base 52. The rotation of the handlever 51 drives the end 55 of the link rod 54 in a crank-like movement about the axis X51 with respect to the housing 2. The link rod 54 also comprises a secondary end 56, by means of which the link rod 54 can collaborate mechanically with the slider 10, as explained below. The secondary end 56 advantageously takes the form of a shaft, centred on a secondary axis X56 of the link rod 54. The shaft here has a circular cross section centred on the axis X56. The end 56 is shown in Figures 7 and 8, in addition to Figures 1 to 6. The axes X55 and X66 are parallel to one another and to the direction X1. The secondary axis X56 is advantageously parallel to the hook axis X14. The link rod 54 advantageously comprises two arms 58 and 59 for connecting the ends and 56, the arm 58 being positioned in the compartment 26 while the arm 59 is positioned in the compartment 27. As an alternative, it is possible to provide a single arm for connecting the ends 55 and 56. Structurally, the link rod 54 defines a force axis R54 which intersects the axes X55 and X56 being perpendicular to these axes X55 and X56. The link rod 54 is configured to transmit forces along this axis R54, via the ends 55 and 56. For any configuration of the control 5, the end 56 is positioned along the slider axis Y1, or in the vicinity of the axis Y1O. In the direction Y1, the end 56 may come into abutment against the slider 10, particularly against a driving surface 105 belonging to said slider, as visible in Figures 3 and 7. The driving surface 105 advantageously forms a bridge accepting the shaft of the end 56, which can then come into radial contact with the driving surface 105. The bridge formed by the driving surface 105 is open in a direction opposite to the direction Y1. When the hooks 14 and 15 are both in the locked position, the end 56 is captured radially between the hooks 14 and 15 in a direction opposite to the direction Y, and in particular in a direction parallel to the axis R54, directed in the direction extending from the end 55 towards the end 56. The hooks 14 and 15 are positioned one on each side of the end 56, being one on each side of the axis Y10, in particular being in radial contact with the end 56 on each side of the axis R54. Thus, when the hooks 14 and 15 are in the locked position, the end 56 can come into abutment against the hooks 14 and 15 along the force axis R54, in the direction opposite to the direction Y1 so that the end 56 drives the slider 10 in the opposite direction to the direction Y1 via the hooks 14 and 15. In this situation, the configuration of the switching control 5 is slaved to the position of the slider 10 with respect to the housing 2 via the hooks 14 and 15 and the surface 105. In particular, when the hooks 14 and 15 are in the locked position for capturing the end 56 and also the slider 10 is in the set position and also the control 5 is in the closed configuration, the end 56 bears radially, in a predetermined way, against a cam surface 143 belonging to the hook 14 and against a cam surface 153 belonging to the hook 15. More generally, the end 56 is received between the surfaces 105, 143 and 153 which surround it about the axis X56 in order to capture the end 56 between them. As visible in Figure 8, the surfaces 143 and 153 face towards one another, being oblique with respect to one another and positioned one on each side of the axis R54. In other words, the surfaces 143 and 153 are arranged in a V and accommodate the end 56 between them. Thus, through a bell-crank effect, the radial pressure of the end 56 against the surface 143 brings the end 56 to bear against the surface 153, and radial pressure of the end 56 against the surface 153 brings the end 56 to bear against the surface 143. Through pressing radially against both surfaces 143 and 153 simultaneously, the result is that the end 56 bears along the axis R54 against the assembly including the hooks 14 and 15 and the slider 10, on the one hand, via the surfaces 143 and 153. In practice, the surface 143 faces in the opposite direction to the direction ZI whereas the surface 153 faces in the same direction as the directions Y1 and ZI. The surface 143 is formed between the end 141 and the end 142. The surface 153 is formed between the end 151 and the end 152. The surface 143 is advantageously tangential to the curved surface of the shaft that forms the end 56, at the point at which these surfaces are in contact. The surface 153 is advantageously tangential to the curved surface of the shaft that forms the end 56, at the point at which these surfaces are in contact. As shown in Figures 1, 2 and 8, when the end 56 is radially captured between the hooks 14 and 15 in the locked position, and also the slider 10 is in the set position and also the control 5 is in the closed configuration, the cam surface 43 is positioned at an angle A143 with respect to the axis X55, about the axis X56 and the cam surface 153 is positioned at an angle A153 with respect to the axis X55, about the axis X56. The angle A143 is measured in a forwards direction about the axis X56, between the axis X55 and the point of contact between the shaft of the end 56 and the surface 143, while the angle A153 is measured in a reverse direction about the axis X56, between the axis X55 and the point of contact between the shaft of the end 56 and the surface 153. Through the design of the device 1, these angles A143 and A153 are predetermined, notably by the shape of the hooks 14 and 15. Provision is made for the angle A143 and the angle A153 both to have a predetermined respective value between 90 and 1800. Provision may advantageously be made, as it has in the figures, for the value of the angle A143 to be different from that of the angle A153. Here, the angle A153 is smaller than the angle A143 and equates for example to two thirds of the angle A143. For example, as is the case in the figures, the angle A153 has a value between 92° and 1000 while the angle A143 has a value between 130 and 160. Because of this difference in value between the angles A143 and A153 a greater force needs to be applied in order to keep the hook 14 in the locked position than in order to keep the hook 15 in the locked position. As shown in Figures 1 and 2, when the control 5 and the slider 10 are slaved to one another and also the control 5 is in the closed configuration, the slider 10 is kept in the set position and the contacts 33 and 43 are kept in the isolation position. In this situation, the link rod 54 is arranged in such a way that the axis X51 is positioned in the direction ZI with respect to the force axis R54. Thus, under the action of the forces F12 and F13 applied to the contacts 33 and 43 and transmitted to the slider 10 and then to the hooks 14 and 15, the hooks apply forces to the end 56, and these forces are transmitted to the handlever 51 along the axis R54 by the end 55, tending to cause the link rod to pivot towards the closed position. The slider 10 therefore keeps the control 5 in the closed configuration via the hooks 14 and 15 and the link rod 54, against the action of the spring 57. In other words, the link rod 54 is arranged in such a way that, when the configuration of the switching control 5 is slaved to the position of the slider 10 by the hooks 14 and 15 entering the locked position, the slider 10 keeps the handlever 51 rotationally in abutment against the housing 2 in the closed orientation, via the link rod 54, under the action of the forces F12 and F13 in respect of their component in the direction Yl. Reciprocally, because the control 5 is in abutment in the closed configuration, the control 5 keeps the slider 10 in the set position against the action of the forces F12 and F13, via the hooks 14 and 15 in the locked position and the end 56. The slider 10 is therefore prevented from moving as far as the tripped position, as the link rod 54 is interposed between the handlever 51, rotationally in abutment in the closed orientation. This then keeps the contacts 33 and 43 in the conduction position. When the hooks 14 and 15 are in the locked position and also a user flips the control 5 from the closed configuration to the open configuration, in this instance by flipping the handlever 51 from the closed orientation to the open orientation, the slider 10 is driven from the set position to the tripped position, firstly by the link rod 54 and then under the action of the forces F12 and F13. In detail, when the control 5 leaves the closed configuration, the link rod 54 allows the slider 10 to be moved towards the tripped position under the action of the springs 12 and 13, while at the same time retaining the slider 10 via the surfaces 143 and 153. At that instant, the positions of the slider 10 and of the end 56 are slaved to one another. When the control 5 has left the closed configuration, the link rod 54 pivots as the end 55 driven by the handlever 51 gradually moves. During this pivoting, the axis R54 pivots closer towards the axis X51. When the axis R54 intersects the axis X51, which is to say when the axes X51, X55 and X56 are aligned, the link rod 54 no longer holds the slider 10 in the set position. The slider 10 is then driven towards the tripped position under the action of the forces F12 and F13 via the contacts 33 and 43 while the contacts 33 and 43 are driven towards the isolation position. Under the action of the forces F12 and F13, the slider 10 also drives the control 5 towards the open configuration, via the link rod 54 which is oriented in such a way as to cause the handlever 51 to pivot into the open orientation. The device 1 then reaches the configuration shown in Figures 3 and 4 where the slider 10 is in the tripped position, the contacts 33 and 43 are in the isolation position and the control 5 is in the open configuration. In this situation, the axis R54 is arranged in the direction Z Iwith respect to the axis X51, as shown in Figures 3 and 4. As shown in Figures 5 and 6, when one of the two hooks 14 and 15 is in the unlocked position, the slider 10 is no longer retained by the secondary end 56 of the link rod 54 in the direction Y1O which means that the slider 10 can be returned from the set position to the tripped position under the action of the forces F12 and F13, via the contacts 33 and 43 which are themselves returned from their conduction position to their isolation position. In other words, the slider 10 can be moved from the set position to the tripped position even if the switching control 5 is in the closed configuration, as soon as one of the hooks 14 and 15 is in the unlocked position. While the slider 10 moves towards the tripped configuration, the control 5 is returned to its open configuration under the action of the spring 57 because the handlever 51 is no longer held in the closed orientation by the link rod 54, since the end 56 of the link rod 54 is freed of the hooks 14 and 15 and therefore of the forces F12 and F13 which have tended to keep the handlever 51 in abutment in the closed orientation. More specifically, as shown in Figure 5, when the hook 14 is in the unlocked position while the hook 15 is in the locked position, the hook 14 is pivoted away from the secondary end 56. In particular, the cam surface 143 no longer presses radially against the shaft formed by the secondary end 56. Therefore, the secondary end 56 and the hook 15 can slide relative to one another since the end is no longer kept pressed against the surface 153 by the surface 143 in a direction opposite to the direction Z1. That allows the slider 10 to be moved from the set position to the tripped position. As shown in Figure 6, when the hook 15 is in the unlocked position while the hook 14 is in the locked position, the hook 15 is pivoted away from the secondary end 56. In particular, the cam surface 153 no longer presses radially against the shaft formed by the secondary end 56. Therefore, the secondary end 56 and the hook 14 can slide relative to one another since the end 56 is no longer kept pressed against the surface 143 by the surface 153 in the direction ZI. This allows the slider 10 to be moved from the set position to the tripped position. As a preference, the protection device comprises a trigger 16 which is borne by the slider 10 and which is visible in Figures 1, 3, 5, 7 and 8. More specifically, the trigger 16 is borne by the part 101, particularly by an arm 106 of the part 101, being positioned entirely in the compartment 26. The arms 103 and 106 are positioned one on each side of a plane containing the axis Y10 and parallel to the direction X1. In other words, the hook 14 extends along the arm 106. The surface 105 is advantageously provided between the two arms 103 and 106 which are arranged as a fork. The trigger 16 is able to pivot with respect to the slider 10 about an axis X16, referred to as "trigger axis" which in this instance passes through the arm 106 and which is fixed relative to the slider 10. As a preference, the axis X16 is parallel to the axis X14 and does not coincide with the axis X14. Through this pivoting, the trigger 16 is mobile with respect to the slider 10 between a retention position shown in Figures 1, 3, 7 and 8 and a release position shown in Figure 5. As a preference, in passing from the retention position to the release position the trigger 16 pivots in the opposite direction to the hook 14 when the hook passes from the locked position to the unlocked position. The trigger 16 comprises a retention end 161 and an actuating end 162 which are positioned one on each side of the axis X16. As shown in Figures 1, 3, 7 and 8, when the hook 14 is in the locked position and also the trigger 16 is in the retention position, the retention end 161 collaborates mechanically with the catching end 142 of the hook 14 so that the trigger 16 keeps the hook 14 in the locked position. For that, the retention end 161 and the catching end 142 have complementing shapes, which mean that the trigger 16 prevents the hook 14 from rotating towards the unlocked position. In particular, when the hook 14 pivots from the locked position to the unlocked position, the end 142 describes a circular path, the end 161 and the axis X16 of the trigger 16 being aligned on a tangent to this circular path when the trigger is in the retention position, thereby causing the hook 14 to be blocked in the locked position by the trigger 16. As shown in Figure 8, the end 161 has a radial surface 166 which presses in a radial direction, with respect to the axis X16, against the end 142. The force with which the end 142 presses against the surface 166 is essentially dependant on the value of the angle A143 since, under the action of the springs 12 and 13, the end 56 of the link rod pushes the hook 14 to pivot towards its unlocked position, the hook 14 nevertheless being kept in the locked position by the orthoradial bearing of the end 142 against the end 161. In addition, provision is advantageously made for the pivoting of the trigger 16 towards the retention position to be confined to the retention position by the end 161 coming into orthoradial abutment, with respect to the axis X16, against the hook 14. For that, the end 161 comprises for example an antirotation surface 167 which comes to bear in an orthoradial direction, with respect to the axis X16, against the hook 14. When the hook 14 is in the locked position and also the trigger 16 is flipped to the release position, the end 161 is moved in the direction Y1 with respect to the end 142 so that the trigger 16 no longer keeps the hook 14 in the locked position. Therefore, the hook 14 can be brought into the unlocked position by collaboration with the end 56 of the link rod 54 under the action of movement of the slider 10 towards the tripped position, under the action of the forces F12 and F13, the slider 10 thus driving the hook 14 in its movement, via the end 141. Causing the hook 14 to flip by flipping the trigger 16 demands particularly little effort. A trigger spring 163 is advantageously provided. The spring 163 is designed to apply a force to the trigger 16, preferably by bearing on the hook 14, tending to keep the trigger 16 in the retention position when the hook 14 is in the locked position and also the trigger 16 is in the retention position. In this particular example, provision is made for the two tabs of the spring 163 to tend to separate through elasticity. In other words, the spring 163 applies antagonist forces to the end 142 and to the end 162. As shown in Figure 5, by the surface 167 coming into orthoradial abutment against the hook 14, the trigger 16 is kept in the release position by the hook 14 when the hook 14 is itself kept in the unlocked position by the end 56 of the link rod 54, then away from the surface 105. The spring 163 is designed to apply a force to the trigger 16 by bearing against the hook 14, tending to return the hook 14 to the locked position and to return the trigger 16 to the retention position when the hook 14 is no longer retained in the unlocked position by the end 56, namely in particular when the end 56 is positioned against the surface 105. This situation can occur when the slider 10 is in the tripped position and also the control 5 is in the open configuration. As shown in Figures 1 and 5, the trips 6 and 7 are configured to trip a flipping of the hook 14 from the locked position to the unlocked position when one of these trips 6 and 7 is excited by its respective electrical fault, namely a short circuit in the case of the trip 6 and an overload in the case of the trip 7, and also the slider is in the set position. More specifically, when the trip 6 is excited by a short circuit, the mobile core 62 is moved from the rest position to the tripped position visible in Figure 5 and therefore strikes the end 162 of the trigger 16. As it does so, the core 62 moves the trigger 16 from the retention position to the release position. As seen previously, the trigger 16 therefore allows the hook 14 to move from the locked position to the unlocked position. As a result, under the action of the springs 12 and 13, the contacts 33 and 43 move into the isolation position, the slider 10 moves into the tripped position, and the control 5 moves into the open configuration. When the trip 7 is excited by an overload, it deforms, so as to drive the end 162 of the trigger 16, via a link rod 164 connecting the end 162 to one end of the bimetal strip that forms the trip 7. In so doing, the trip 7 moves the trigger 16 from the retention position to the release position. As seen previously, the trigger 16 then allows the hook 14 to pass from the locked position to the unlocked position. As a result, under the action of the springs 12 and 13, the contacts 33 and 43 move into the isolation position, the slider 10 moves into the tripped position, and the control 5 moves into the open configuration. Because of the lever arm that there is between the end 162 and the axis X16, the trips 6 and 7 can cause the contacts 33 and 43 to move towards the isolation position with very little effort. When the trip 6 or 7 is excited by its corresponding fault, the movement of the contacts 33 and 43 towards the isolation position is executed whatever the configuration of the control 5, because the slider 10 is released from the end 56 of the link rod 54 by the movement of the hook 14 into the unlocked position. The control 5 is then returned towards the open position under the action of its spring 57 alone. As a preference, the protection device comprises a trigger 17 which is borne by the slider 10 and which is visible in Figures 2, 4, 6, 7 and 8. More specifically, the trigger 17 is borne by the part 102, particularly by an arm 107 of the part 102, being positioned fully in the compartment 27. The arms 104 and 107 are positioned one on each side of a plane containing the axis Y10 and parallel to the direction X1. The arm 107 and the arm 106 are positioned on each side of the same plane. The hook 15 extends along the arm 107. The surface 105 is advantageously provided between the two arms 104 and 107 which are arranged as a fork. The trigger 17 is able to pivot with respect to the slider 10 about an axis X17, referred to as "trigger axis", which in this instance passes through the arm 107 and which is fixed relative to the slider 10. As a preference, the axis X17 is parallel to the axis X14 and does not coincide with the axis X14. Through this pivoting, the trigger 17 is mobile relative to the slider 10 between a retention position shown in Figures 2, 4, 7 and 8 and a release position shown in Figure 6. As a preference, on moving from the retention position to the release position, the trigger 17 pivots in the opposite direction to the hook 15 when the hook 15 moves from the locked position into the unlocked position. The trigger 17 comprises a retention end 171 and an actuating end 172 which are positioned one on each side of the axis X17. The ends 171 and 172 are visible in particular in Figure 8. As shown in Figures 2, 4, 7 and 8, when the hook 15 is in the locked position and also the trigger 17 is in the retention position, the retention end 171 collaborates mechanically with the catching end 152 of the hook 15, so that the trigger 17 keeps the hook 15 in the locked position. For that, the retention end 171 and the catching end 152 have complementing shapes, which mean that the trigger 14 blocks the rotation of the hook 15 towards the unlocked position. In particular, when the hook 15 pivots from the locked position to the unlocked position, the end 152 describes a circular path, the end 171 and the axis X17 of the trigger 17 being aligned on a tangent to this circular path when the trigger 17 is in the retention position, thereby causing the hook 15 to be blocked in the locked position by the trigger 17. As shown in Figure 8, the end 171 has a radial surface 177 which bears in a radial direction, with respect to the axis X17, against the end 152. The force with which the end 152 bears against the surface 177 is essentially dependant on the value of the angle A153 since, under the action of the springs 12 and 13, the end 56 of the link rod pushes the hook 15 to pivot towards its unlocked position, the hook 15 nevertheless being kept in the locked position by the orthoradial bearing of the end 152 against the end 171. In addition, provision is advantageously made for the pivoting of the trigger 17 towards the retention position to be confined to the retention position by the end 171 coming into orthoradial abutment, with respect to the axis X17, against the hook 15. For that, the end 171 comprises for example an antirotation surface 176 which comes to bear in an orthoradial direction, with respect to the axis X17, against the hook 15. Provision is advantageously made for the geometry of the end 171 to be similar to that of the end 161 and for the geometry of the end 152 to be similar to that of the end 142. Thus, the ends 171 and 152 shown in Figure 8 also illustrate the shape of the ends 161 and 142, which are arranged symmetrically, and the way in which these collaborate mechanically. When the hook 15 is in the locked position and also the trigger 17 is flipped into the release position, the end 171 is moved in the direction Y1 with respect to the end 152 so that the trigger 17 no longer keeps the hook 15 in the locked position. Therefore, the hook 15 can be brought into the unlocked position by collaboration with the end 56 of the link rod 54, under the action of a movement of the slider 10 towards the tripped position under the action of the forces F12 and F13, the slider 10 thus driving the hook 15 in its movement, via the end 151. Causing the hook 15 to flip by flipping the trigger 17 demands particularly little effort. The force required to flip the trigger 17 is even lower than that required to flip the trigger 16, because of the difference in value of the angles A143 and A153, since the force with which the hook 15 presses against the surface 176 is lower than the force with which the hook 14 presses against the surface 166. Because of this difference between the angles A143 and A153, provision may advantageously be made for the trigger 17 to be actuated using an actuator that produces a low force, such as the trip 8, as explained hereinafter, reserving actuation of the trigger 16 for actuators that produce a more significant force, such as the trip 6 and the trip 7, as explained above. A trigger spring 173 is advantageously provided. The spring 173 is designed to apply a force to the trigger 17, preferably by bearing against the hook 15, tending to keep the trigger 17 in the retention position when the hook 15 is in the locked position and also the trigger 17 is in the retention position. In this particular example, provision is made for the two lugs of the spring 173 to tend to move apart through elasticity. In other words, the spring 173 applies antagonist forces to the end 152 and to the end 172. As shown in Figure 6, through the surface 177 of the end 172 coming into orthoradial abutment against the hook 15, the trigger 17 is kept in the release position by the hook 15 when the hook 15 is itself kept in the unlocked position by the end 56 of the link rod 54, now away from the surface 105. The spring 173 is designed to apply a force to the trigger 17 by bearing against the hook 15, tending to return the hook 15 to the locked position and to return the trigger 17 to the retention position when the hook 15 is no longer kept in the unlocked position by the end 56, namely in particular when the end 56 is positioned against the surface 105. This situation may occur when the slider 10 is in the tripped position and also the control 5 is in the open configuration. As a preference, the device 1 further comprises a reset lever portion 18, visible in Figures 2, 4, 6, 7 and 8. The lever portion 18 is borne by the slider 10, able to move with respect to the slider between a reset position, shown in Figures 2, 4, 6, 7 and 8 and a disconnected position. In particular, the lever portion 18 is attached to the part 102 so as to be housed entirely in the compartment 27. In this particular example, the lever portion 18 comprises an attachment end 181 by means of which the lever portion 18 is attached to the slider 10, an actuating end 182 and an intermediate shoulder 183. More specifically, the lever portion 18 is attached to the arm 107. In order thus to be able to move between the reset and disconnected positions, provision is advantageously made for the lever portion 18 to pivot about the axis X17. The movement of the lever portion 18 is independent of that of the trigger 17, apart from their interactions mentioned below. In passing from the reset position to the disconnected position, the end 182 is moved in the direction of the direction ZI, namely the lever portion 18 is pivoted in the same direction as the trigger 17 when the trigger is pivoted from the retention position to the release position. The lever portion 18 is arranged along the trigger 17 with the end 181 level with the end 171 and the end 182 level with the end 172. The trigger 17 is arranged in the direction ZI with respect to the lever portion 18. The lever portion 18 is configured to drive the trigger 17 from the retention position to the release position when the lever portion 18 is itself driven from the reset position to the disconnected position. In other words, when the lever portion 18 is pivoted towards the disconnected position, the end 182 comes to bear orthoradially against the end 172 so as to drive the trigger towards the release position by driving the end 172. The housing 2 comprises a reset pin 184, visible notably in Figure 6. In this instance, the pin 184 is borne by the partition 25 and arranged in the compartment 27. When the lever portion 18 is in the disconnected position and also the slider 10 is moved from the set position towards the tripped position, the lever portion 18 is driven in the same translational movement in the direction Yl. The pin 184 is arranged in such a way that the lever portion 18 comes into contact with the pin 184 via the shoulder 183 and this, under the action of the movement of the slider 10 towards the tripped position, returns the lever portion 18 to the reset position.

Specifically, the pin 184 slides along the lever portion 18 and makes the lever portion rotate through mechanical collaboration with the shoulder 183. As shown in Figures 2 and 6, the trip 8 is configured to trip a flipping of the hook 15 from the locked position towards the unlocked position when the trip 8 is excited by its respective electrical fault, namely in this instance a differential fault. More specifically, when the trip 8 is excited by a differential fault and also the slider is in the set position, the relay 82 moves the mobile rod 83 from the rest position shown in Figure 2 to the tripped position in which the rod 83 is moved in the direction ZI with respect to the housing 2. Therefore, the rod 83 reaches the actuating end 182 of the lever portion 18 and drives the lever portion 18 from the reset position to the disconnect position via the end 182. This has the effect of causing the lever portion 18 to drive the trigger 17 from the retention position to the release position. In other words, it is preferably by means of the lever portion 18 that the trip 8 drives the trigger 17 from the retention position to the release position. As the trigger 17 is in the release position, the hook 15 is no longer held in the locked position. As seen earlier, the hook 15 then moves into the unlocked position under the action of the springs 12 and 13, and this causes the slider to move from the set position to the tripped position at the same time as the contacts 33 and 43 move from the conduction position to the isolation position. Because of the lever arm that there is between the end 182 and the axis X17, the trip 8 may cause the contacts 33 and 43 to move towards the isolation position with very little effort. When the trip 8 is excited by the differential fault, the movement of the contacts 33 and 43 towards the isolation position is executed regardless of the configuration of the control 5, because the slider 10 is released from the end 56 of the link rod 54 by the fact that the hook 15 has adopted the unlocked position. The control 5 is therefore returned towards the open position under the action of its spring 57 alone. Before the slider 10 reaches the tripped position, the lever portion 18 is returned to the reset position by collaboration with the pin 184, under the action of the movement of the slider 10 driven by the forces F12 and F13. By moving back into the reset position, the end 182 of the lever portion drives the mobile rod 83 from the trip position to the rest position in the opposite direction to the direction Z1. In other words, the lever portion 18 is configured to reset the relay 82 of the trip 8 when the lever portion 18 is driven from the disconnected position to the reset position. As an alternative, in cases where the trip 18 does not need to be reset, or will be reset by some other means, the presence of the lever portion 18 is optional and provision may be made for the trip 8 to actuate the trigger 17 directly, in a way similar to that adopted for the trip 6 with the trigger 16. Advantageously, the device 1 comprises an indicator 165 which is rotationally mobile with respect to the housing 2 about an axis parallel to the direction X1, between an initial position visible in Figure 1, and an indicating position visible in Figure 5. In the indicating position, an indicating end 169 belonging to the indicator 165 is visible from outside the housing 2, being placed in the opening of a window belonging to the housing 2, formed through the front face 21. In the initial position, the indicating end 169 is not visible from outside the housing 2, being offset with respect to said window in the housing 2. The trigger 16 is configured to move the indicator 165 into the indicating position when the trigger 16 is moved from the retention position to the release position. For this purpose, the trigger 16 comprises for example a radial protrusion 168 which drives the rotation of a driving end 160 of the indicator 165, visible in Figure 3, when the trigger 16 is itself pivoted towards the release position while the slider 10 is in the set position. The slider 10 is configured to return the indicator 165 to the initial position when the slider 10 is moved from the tripped position into the set position. For that purpose, provision is made for example for the arm 106 of the slider 10 to comprise a protrusion 108 which drives the rotation of the driving end 160 when the slider 10 moves towards the set position and also the indicator 165 is in the indicating position. The indicator 165 is thus able to indicate to the user when one of the trips 6 or 7 has been excited by an electrical fault, the indicator 165 being reinitialized once the user has reset the device 1 by causing the control 5 to move from the open configuration to the closed configuration. As an alternative or in addition, an indicator 175 with an indicating end 179 which is similar to the indicator 165 and its indicating end 169 is provided. The indicator 175 is actuated independently of the indicator 165, by the trigger 17 or the lever portion 18, towards an indicating position so as to indicate to the user when the trip 8 has been excited as a result of a differential fault. The indicator 175 is returned to an initial position by the slider 10 when the control 5 is returned to the closed configuration once the fault has disappeared. Advantageously, the device 1 comprises an indicator 110, which is rotationally mobile with respect to the housing 2 about an axis parallel to the direction X1 between a position indicating closure, as visible in Figure 2, and a position indicating openness, visible in Figures 4 and 6. Whatever its position, the indicating end 111 belonging to the indicator 110 is visible from outside the housing 2, being positioned in the opening of a window belonging to the housing 2, formed through the front face 21. Depending on its position, a different part of the indicating end 111 may be visible through the window, or come to face pointers, in order to indicate whether the contacts 33 and 43 are in the isolation or the conduction position. The position of the indicator 110 is slaved to the position of the slider 10, preferably by direct driving of the indicator 110 by the part 102 of the slider 10. The position of the indicator 110 thus allows the user to know the position of the slider 10 and therefore of the contacts 33 and 43 so as to detect a possible fault with the device 1, notably if the configuration of the control does not correspond to the position that the contacts 33 and 43 ought to adopt. The device 1, thanks to its internal mechanism, allows one or more particularly compact mechanical indicators to be provided easily, so as to signal the status of the mechanism to the user without the need to open the housing 2. More generally, the device 1 is configured so that when no electrical fault is occurring, the contacts 33 and 43 can be flipped between their isolation position and their conduction position by actuating the control 5 between the open and closed configurations, and so that, when an electrical fault occurs while the contacts 33 and 43 are in the conduction position, the contacts are flipped into the isolation position, even in the eventuality that the control 5 is kept in the closed configuration. The device 1 is designed for several types of trip, notably the trip 8 which needs to be reset and of which the force produced by the relay 82 is particularly low. The device 1 is particularly compact and easily allows three trips 6, 7 and 8 and two conduction tracks 3 and 4 electrically isolated from one another to be housed in the one same housing 2. Any feature described in the foregoing in respect of one particular embodiment or variant may be implemented in the other embodiments and variants described in the foregoing, in so far as this is technically feasible. The reference to any prior art in this specification is not, and should not be taken as, an acknowledgement or any form of suggestion that such prior art forms part of the common general knowledge. It will be understood that the terms "comprise" and "include" and any of their derivatives (e.g. comprises, comprising, includes, including) as used in this specification, and the claims that follow, is to be taken to be inclusive of features to which the term refers, and is not meant to exclude the presence of any additional features unless otherwise stated or implied. It will be appreciated by those skilled in the art that the disclosure is not restricted in its use to the particular application or applications described. Neither is the present disclosure restricted in its preferred embodiment with regard to the particular elements and/or features described or depicted herein. It will be appreciated that the disclosure is not limited to the embodiment or embodiments disclosed, but is capable of numerous rearrangements, modifications and substitutions without departing from the scope as set forth and defined by the following claims.

Claims (1)

1.- Electrical protection device comprising: - a housing; - a first conduction track comprising a first mobile contact which is mobile with respect to the housing, between: • a conduction position in which the first mobile contact electrically connects a first input terminal to a first output terminal belonging to the first conduction track, and • an isolation position in which the first input terminal and the first output terminal are electrically isolated from one another; - a slider, to which the first mobile contact is attached, the slider being able to slide with respect to the housing along a slider axis, between a set position in which the first mobile contact is in the conduction position, and a tripped position in which the first mobile contact is in an isolation position; - a first contact spring, applying a first contact force to the first mobile contact by bearing against the housing, the first mobile contact having a tendency to drive the slider towards the tripped position when the slider is in the set position, under the action of the first contact force; - a switching control which is configured to move between a closed configuration and an open configuration; and - a first trip, configured to be excited by an electrical fault of afirst type; characterized in that: - the electrical protection device further comprises a first hook which is borne by the slider, being mobile with respect to the slider between: • a locked position, for slaving the configuration of the switching control to the position of the slider so that the slider is in the tripped position when the switching control is in the open configuration, and so that the slider is in the set position when the switching control is in the closed configuration, the switching control thus keeping the slider in the set position, and • an unlocked position in which the first hook allows the slider to be moved from the set position to the tripped position even if the switching control is in the closed configuration; and

- the first trip is configured to trip a flipping of the first hook from the locked position to the unlocked position when the first trip is excited by an electrical fault of the first type. 2.- Electrical protection device according to Claim 1, wherein the switching control comprises: - a handlever which is rotationally mobile with respect to the housing about a handlever

axis, the slider axis being orthoradial with respect to the handlever axis; - a control rod which comprises: • a primary end via which the control rod is attached to the handlever being able to pivot with respect to the handlever about a primary axis parallel to the handlever axis; and • a secondary end which is captured by the first hook when the first hook is in the

locked position, so as to slave the configuration of the switching control and the position of the slider. 3.- Electrical protection device according to Claim 2, wherein: - the handlever is rotationally mobile: • as far as a closed orientation, when the switching control is in the closed

configuration, in which the handlever is rotationally in abutment against the housing, and • as far as an open orientation, when the switching control is in the open

configuration; - the switching control comprises a control spring which applies a control force to the

handlever, with respect to the housing, tending to cause the handlever to rotate as far as the open orientation; and - the control rod is arranged in such a way that, when the configuration of the switching control is slaved to the position of the slider, and the switching control is in the closed position and the slider is in the set position: • the slider keeps the handlever rotationally in abutment against the housing in the

closed orientation with respect to the control rod under the action of the first mobile contact receiving the first contact force, and • the control rod opposes a movement of the slider towards the tripped position by bearing against the handlever which is itself rotationally in abutment against the housing in the closed orientation. 4.- Electrical protection device according to either one of Claims 2 and 3, wherein:

- the electrical protection device further comprises: • a second hook which is borne by the slider, being mobile with respect to the slider

independently of the first hook between a locked position and an unlocked position; • a second trip configured to trip a flipping of the second hook from the locked position to the unlocked position when the second trip is excited by an electrical fault of a second type; and - in order to be mobile with respect to the slider, the first hook and the second hook are able to pivot independently with respect to the slider about the one same hook axis, such that: • when the first hook and the second hook are in the locked position, the secondary end is captured radially between the first hook and the second hook, thus slaving the configuration of the switching control to the position of the slider; • when the first hook is in the unlocked position while the second hook is in the locked position, the first hook is distant from the secondary end, thus allowing the slider to be moved from the set position to the tripped position; and • when the second hook is in the unlocked position while the first hook is in the locked position, the second hook is distant from the secondary end, thus allowing the slider to be moved from the set position into the tripped position. 5.- Electrical protection device according to Claim 4, wherein, when the secondary end is captured radially between the first hook and the second hook and the slider is in the set position: - the secondary end comes to bear radially against a first cam surface belonging to the

first hook, while the first cam surface is positioned at a first angle with respect to the primary axis, about the secondary end; and - the secondary end comes to bear radially against a second cam surface belonging to

the second hook, while the second cam surface is positioned at a second angle with respect to the primary axis about the secondary end, so that the secondary end is interposed between the first cam surface and the second cam surface and so that the first angleand the second angle have different values. 6.- Electrical protection device according to any one of the preceding claims, wherein: - the electrical protection device comprises a trigger which is borne by the slider being

mobile with respect to the slider between:

• a retention position in which the trigger holds the first hook in the locked position, and • a release position in which the trigger allows the first hook to transition from the locked position to the unlocked position; and - the first trip is configured to move the trigger from the retention position to the release position in order to trigger a flipping of the first hook from the locked position to the unlocked position when the first trip is excited by an electrical fault of the first type. 7.- Electrical protection device according to Claim 6, comprising a trigger spring, that tends to return the trigger to the retention position and the first hook to the locked position, when the trigger is in the release position and the first hook is in the unlocked position. 8.- Electrical protection device according to either one of Claims 6 and 7, wherein the trigger is able to pivot with respect to the slider about a first trigger axis, and comprises: - a retention end which, when the trigger is in the retention position, collaborates mechanically with a catching end belonging to the first hook so that the trigger holds the first hook in the locked position; and - an actuation end by means of which the first trip moves the trigger from the retention position to the release position when the first trip is excited by an electrical fault of the first type. 9.- Electrical protection device according to Claim 8, wherein: - the electrical protection device further comprises a reset lever portion, which is borne by the slider being mobile with respect to the slider between an uncaught position and a reset position, the reset lever portion being configured to: • drive the trigger from the retention position to the release position when the reset lever portion is driven from the reset position to the uncaught position, and • reset the first trip when the reset lever portion is driven from the uncaught position to the reset position; - the first trip is configured to move the trigger from the retention position to the release position by moving the reset lever portion from the reset position to the uncaught position; and - the housing comprises a reset pin for driving the reset lever portion from the uncaught position to the reset position under the action of a movement of the slider from the set position to the tripped position. 10.- Electrical protection device according to any one of Claims 6 to 9, wherein:

- the electrical protection device comprises an indicator which is mobile with respect to the housing between an initial position and an indicating position; - the trigger is configured to move the indicator as far as the indicating position when the trigger is moved from the retention position as far as the release position; and - the slider is configured to move the indicator as far as the initial position when the slider is moved from the tripped position to the set position. 11.- Electrical protection device according to any one of the preceding claims, wherein: - the first conduction track comprises a first fixed contact against which the first mobile contact bears in a first direction of contact perpendicular to the slider axis when the first mobile contact is in the conduction position, for electrically connecting the first input terminal to the first output terminal, the first mobile contact being at some distance from the first fixed contact when the first mobile contact is in the isolation position, so that the first input terminal and the first output terminal are isolated from one another; and - the first contact spring is configured so that the first contact force keeps the first mobile contact pressed against the first fixed contact in the first direction of contact when the first mobile contact is in the conduction position. 12.- Electrical protection device according to Claim 11, wherein the electrical protection device comprises: - a second conduction track electrically isolated from the first conduction track and comprising a second mobile contact and a second fixed contact, the second mobile contact being attached to the slider and being mobile with respect to the housing, between: o a conduction position in which the slider is in the set position and the second mobile contact is pressed against the second fixed contact in a second direction of contact which is the opposite direction to the first direction of contact so as to electrically connect a second input terminal to a second output terminal belonging to the second conduction track, and o an isolation position in which the slider is in the tripped position and the second mobile contact is positioned away from the second fixed contact so that the second input terminal and the second output terminal are electrically isolated from one another; and - a second contact spring applying a second contact force to the second mobile contact

by bearing against the housing, the second mobile contact tending to drive the slider towards the tripped position when the slider is in the set position, under the action of the second contact force, the second contact spring being configured so that the second contact force keeps the second mobile contact pressed against the second fixed contact in the second direction of contact when the second mobile contact is in the conduction position.