AU2022201933A1

AU2022201933A1 - Electrical protection device

Info

Publication number: AU2022201933A1
Application number: AU2022201933A
Authority: AU
Inventors: Claude Burnot
Original assignee: Schneider Electric Industries SAS
Current assignee: Schneider Electric Industries SAS
Priority date: 2021-03-26
Filing date: 2022-03-21
Publication date: 2022-10-13
Also published as: EP4064314C0; FR3121270A1; FR3121270B1; EP4064314B1; CN115132542A; EP4064314A1

Abstract

Electrical protection device, comprising: a switching mechanism (10); a tripping device (8) for switching the switching mechanism in the event of an electrical fault, and an indicator (15). To signal an electrical fault even if the tripping device produces a weak force, provision is made for a drawer (130), which is mobile between an actuation position for placing the indicator in a primary signalling position and an initial position for allowing the indicator to be placed in a secondary signalling position; a drawer spring (132), which tends to displace the drawer from the initial position to the actuation position; and a lock (131), which is mobile between a holding position for holding the drawer in the initial position and a release position for allowing the displacement of the drawer, the tripping device displacing the lock to the release position in the event of an electrical fault. 3/11 FIG 3 N CJ (D ( x xrilf -T 11I M xN x 0

Description

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ELECTRICAL PROTECTION DEVICE

PRIORITY This application claims priority from French Patent Application n° FR 2103126 filed March 26, 2021. The entire content of this priority application is hereby incorporated by reference.

BACKGROUND The present invention relates to an electrical protection device. An electrical installation of a building generally comprises an electrical switchboard, connecting this electrical installation to a collective electricity distribution network and comprising a variety of devices for protecting, controlling and monitoring the electrical installation. Known electrical protection devices include, in particular, a circuit breaker, which aims to protect the electrical installation, or a person, from an electrical fault in an electrical circuit of the installation, by opening the electrical circuit. For example, the circuit breaker is tripped by an overload, a short circuit or a differential electrical fault within this circuit. For a user to be able to easily identify an electrical fault which might be detected by the protection device, it is known practice to provide signalling at the front, notifying the user that an electrical fault has been detected, or even notifying as to the type of electrical fault in question. EP2975628B1 describes a signalling device for an electrical protection apparatus, which includes a magnetic tripping device, for opening the circuit when a fault of short-circuit type occurs, and a thermal tripping device, for opening the circuit when a fault of overload type occurs. The signalling device comprises an "any-fault" signalling means, which is activated to signal the tripped state of the apparatus when an electrical fault occurs, regardless of whether this fault is an overload or a short circuit. The signalling device also comprises a "second" signalling means, which is able to be activated to signal the tripped state of the

apparatus exclusively when an electrical fault of short-circuit type occurs. This signalling device therefore allows the user to easily determine the type of fault that led to the apparatus being tripped. While this known device is particularly suitable for specifically signalling a fault of short-circuit type, there is a need to specifically identify other types of faults. To signal the fault of short-circuit type, the second signalling means of this known device is displaced by the striker of the magnetic tripping device under the effect of the short circuit, the movement of the striker being transmitted to the signalling means via a lever. While a magnetic tripping device displaces the striker with a relatively large force when the magnetic fault occurs, which is able to trigger the opening of the contacts and displace the signalling means, other types of tripping devices do not generate such force. For example, the constant need miniaturize tripping devices in order to miniaturize the protection device results in having tripping devices that generate a smaller force. According to another example, some tripping devices generate a weak force simply because of how they operate. This is particularly the case for some differential tripping devices implementing a differential sensor and a relay powered only by the energy from the differential fault detected by the differential sensor, the relay then generating a particularly weak force. Generally speaking, the weak force generated by these tripping devices may prove to be insufficient to both open the contacts and displace a signalling means.

SUMMARY The subject of the invention is an electrical protection device comprising a housing and a first conductive path, which comprises a mobile contact which is housed in the housing and which is mobile between a conduction position, in which the mobile contact electrically connects a first input terminal to a first output terminal belonging to the first conductive path, 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 also comprises a switching mechanism, which is housed in the housing and which is configured to switch between an armed configuration, in which the switching mechanism places the mobile contact in the conduction position, and a tripped configuration, in which the switching mechanism places the mobile contact in the isolation position. The electrical protection device also comprises a first tripping device, which is housed in the housing and which is configured to trigger switching of the switching mechanism from the armed configuration to the tripped configuration when the first tripping device is excited by an electrical fault of a first type. The electrical protection device also comprises a first indicator, which is housed in the housing and which is mobile with respect to the housing between a primary signalling position and a secondary signalling position, the first indicator being visible from the exterior of the housing for at least one signalling position of the first indicator from among the primary signalling position and the secondary signalling position.

According to the invention, the electrical protection device further comprises: a drawer, which is mobile with respect to the housing between an actuation position, in which the drawer places the first indicator in the primary signalling position, and an initial position, in which the drawer allows the first indicator to be placed in the secondary signalling position; a drawer spring, which applies an actuation force to the drawer tending to displace the drawer from the initial position to the actuation position; and a lock, which is mobile between a holding position, in which the lock holds the drawer in the initial position, when the drawer is in the initial position, and a release position, in which the lock allows the drawer to be displaced from the initial position to the actuation position, the first tripping device being configured to displace the lock from the holding position to the release position when the first tripping device is excited. One aspect of the invention is to make provision for the first indicator to be actuated by the drawer, under the action of the drawer spring, rather than directly by the tripping device. Before the occurrence of an electrical fault of the first type, the drawer is in the initial position, being held there by the lock in the holding position, against the actuating force applied by the drawer spring to the drawer. When an electrical fault of the first type occurs, the tripping device releases the drawer by actuating the lock to the release position, which requires a weak force on the part of the tripping device. Nevertheless, provision may advantageously be made for the drawer spring to produce a relatively large actuating force to displace the drawer from the initial position to the actuation position such that the drawer drives the first indicator from the secondary signalling position to the primary signalling position without difficulty, and independently of the force produced by the first tripping device. In this way, the drawer, the drawer spring and the lock act as a mechanical force amplifier, thereby enabling the first tripping device to actuate the first indicator even if the first tripping device generates a relatively weak force. Advantageously, provision may thus be made for the first tripping device to be particularly compact and/or to be tripped only by energy from the electrical fault, without providing any other energy. The invention is particularly suitable in the case where the first tripping device is a differential tripping device. Preferably, the switching mechanism is configured to place the first indicator in the secondary signalling position when the switching mechanism is placed in the armed configuration. Preferably, the switching mechanism comprises a stirrup, which is mounted so as to pivot with respect to the housing between an armed position, for placing the mobile contact in the conduction position, the switching mechanism being in the armed configuration when the stirrup is in the armed position, and a tripped position, for placing the mobile contact in the isolation position, the switching mechanism being in the tripped configuration when the stirrup is in the tripped position. Preferably, when the mobile contact is displaced towards the isolation position and the drawer is in the actuation position, the mobile contact displaces the drawer towards the initial position. Preferably, for the switching mechanism to place the first indicator in the secondary signalling position when the switching mechanism is placed in the armed configuration, the stirrup is configured to drive the first indicator to the secondary signalling position when the stirrup is displaced to the armed position. Preferably, the electrical protection device further comprises a second conductive path, which is electrically isolated from the first conductive path and which comprises a second input terminal and a second output terminal. Preferably, the first tripping device is a differential tripping device, which comprises: a differential sensor, configured to be excited when a differential current exceeds a predetermined threshold, the differential current being equal to a difference between a first current flowing in the second conductive path and a second current flowing in the first conductive path, and a relay, configured to drive the lock from the holding position to the release position just under the action of electrical energy from the differential sensor and generated under the effect of the differential current when the differential current exceeds the predetermined threshold. Preferably, to be mobile between the primary signalling position and the secondary signalling position, the first indicator is rotatably mobile with respect to the housing about an indicator axis. Preferably, to be mobile between the initial position and the actuation position, the drawer is translatably mobile with respect to the housing along a drawer axis that is fixed with respect to the housing and orthoradial with respect to the indicator axis. Preferably, the electrical protection device further comprises a stop, which is configured to obstruct the displacement of the first indicator from the secondary signalling position to the primary signalling position and to obstruct the displacement of the first indicator from the primary signalling position to the secondary signalling position. Preferably, to be mobile between the holding position and the release position, the lock is pivotable with respect to the housing about a lock axis. Preferably, the electrical protection device further comprises a lock spring, which applies a holding force to the lock tending to displace the lock from the release position to the holding position. Preferably, the electrical protection device further comprises a switching control, which is actuable between a closing position and an opening position. Preferably, the switching mechanism comprises: a stirrup spring, which exerts a tripping force tending to switch the switching mechanism from the armed configuration to the tripped configuration; a latch, which is configured to change between: a locking configuration, in which the latch slaves the position of the switching control to the configuration of the switching mechanism such that the switching mechanism is in the tripped configuration when the switching control is in the opening position and in the armed configuration when the switching control is in the closing position, and an unlocking configuration, in which the latch allows the switching mechanism to be switched to the tripped configuration under the action of the tripping force even if the switching control is in the closing position. Preferably, to have the first tripping device trigger the switching of the switching mechanism from the armed configuration to the tripped configuration, the drawer is configured to place the latch in the unlocking configuration when the drawer is in the actuation position. Preferably, the electrical protection device further comprises: a second tripping device, which is housed in the housing and which is configured to place the latch in the unlocking configuration so as to switch the switching mechanism to the tripped configuration when the second tripping device is excited by an electrical fault of a second type, and a second indicator, which is housed in the housing and which is mobile with respect to the housing between a primary signalling position and a secondary signalling position, the second indicator being visible from the exterior of the housing for at least one signalling position of the second indicator from among the secondary signalling position and the primary signalling position. Preferably, the latch is configured to place the second indicator in the primary signalling position when the switching mechanism is switched to the tripped configuration when the latch is in the unlocking configuration. Preferably, the switching mechanism is configured to place the second indicator in the secondary signalling position when the switching mechanism is placed in the armed configuration. Preferably, the housing comprises a front comprising a window. Preferably, the first indicator comprises a light, the position of which with respect to the window is different when the first indicator is in the secondary signalling position and when the first indicator is in the primary signalling position.

DRAWINGS The invention will be better understood and other advantages thereof will become apparent in the light of the following description, disclosing some examples complying with the principle of the invention, illustrated by the following appended drawings:

[FIG 1] Figure 1 is a perspective view of an electrical switchboard comprising an electrical protection device, according to one embodiment in accordance with the invention.

[FIG 2] Figure 2 is a perspective view of the electrical protection device of Figure 1, shown in a first configuration.

[FIG 3] Figure 3 is a side view of the electrical protection device of the preceding figures, shown in the first configuration.

[FIG 4] Figure 4 is a side view of the electrical protection device of the preceding figures, seen from the opposite angle with respect to Figure 3, and shown in the first configuration.

[FIG 5] Figure 5 is a view similar to that of Figure 3, the electrical protection device being shown in a second configuration.

[FIG 6] Figure 6 is a view similar to that of Figure 4, the electrical protection device being shown in the second configuration.

[FIG 7] Figure 7 is a view similar to that of Figure 3, the electrical protection device being shown in a fourth configuration.

[FIG 8] Figure 8 is a view similar to that of Figure 4, the electrical protection device being shown in a sixth configuration.

[FIG 9] Figure 9 is a view similar to that of Figure 3, but enlarged, showing just part of the electrical protection device, in a seventh configuration.

[FIG 10] Figure 10 is a view similar to that of Figure 4, but enlarged, showingjust part of the electrical protection device, in the same configuration as in Figures 3 and 4, in an eighth configuration.

[Fig 11] Figure 11 is a perspective view of part of the electrical protection device of the preceding figures.

DETAILED DESCRIPTION Figure 1 shows an electrical switchboard according to the invention. The electrical switchboard is configured so as to be integrated into an electrical installation, fitted for example in a building. The electrical switchboard comprises multiple electrical protection devices. The electrical switchboard is modular, in that the electrical protection devices may be arranged differently, interchanged and/or replaced, and in that it is possible to remove and/or add electrical protection devices, according to the needs of the electrical installation into which the switchboard is to be integrated. The electrical protection devices may be of multiple types.

In the example of Figure 1, the electrical switchboard comprises electrical protection devices 1 of a first type and electrical protection devices 19 of a second type. A width direction X1, a depth direction Y1 and a height direction ZI are defined, which are perpendicular to one another and are fixed with respect to one of the devices 1, in accordance with the invention, and which is shown on its own in Figures 2 to 9. The electrical switchboard comprises a fastening rail 18, to which the electrical protection devices 1 and 19 are securely attached. The fastening rail 18 is advantageously arranged with a horizontal orientation. The device 1 is advantageously mounted on the rail 18 such that the direction X1 is parallel to the rail. More generally, the electrical protection devices 1 and 19 are juxtaposed along the rail 18, against one another, in the direction X1. The device 1 is advantageously mounted on the rail 18 such that the direction ZI is directed upwards. The device 1 is arranged in the direction Y1 with respect to the rail 18. The electrical switchboard further comprises a supply comb 17, which extends parallel to the rail 18, while being arranged above the rail 18. The comb 17 is connected to the devices 1 and 19 in order to supply them with electrical power. More specifically, the comb 17 comprises connectors 16 via which the comb 17 is connected to the devices 1 and 19. The connectors 16 are distributed into multiple groups, all of the connectors 16 of the same group being electrically connected to one another and electrically isolated from the connectors 16 belonging to the one or more other groups. Preferably, provision is made for at least two groups of connectors 16, in the case of a single-phase installation. In this case, one group of connectors 16 is brought to a neutral potential of the electrical installation, such that this group of connectors 16 delivers electrical power to the devices 1 and 19 at the neutral potential. In this case, another group of connectors 16 is brought to a phase potential of the electrical installation, such that this group of connectors 16 delivers electrical power to the devices 1 and 19 at the phase potential. Provision may be made for other groups of connectors 16, in particular in the case of a three-phase installation, where two other groups of connectors 16 are brought to phase potentials that are distinct from the preceding groups. Advantageously, in this case, as visible in Figure 1, some protection devices, such as the devices 1, are connected to just two groups of connectors 16, so as to be supplied by one phase and the neutral, i.e. single-phase, while others, such as the devices 19, are supplied by the three phases and the neutral, i.e. three-phase. As shown in Figures 2 to 9, the device 1 comprises a housing 2. The directions XI, Y1 and ZI are fixed with respect to the housing 2. The housing 2 constitutes an essentially closed and electrically insulating envelope. The housing 2 advantageously comprises a front 20 and a back 21, distributed in the depth direction Yl, with the front 20 in the direction Y1 with respect to the back 21. The housing 2 advantageously comprises a lower end 22 and an upper end 23 which are distributed in the direction ZI, with the upper end 23 in the direction ZI with respect to the lower end 22. The housing 2 advantageously comprises a right-hand side 24 and a left-hand side 25, which are preferably planar and parallel to one another, and are distributed along the direction X1, with the left-hand side 25 in the direction X1 with respect to the right-hand side 24, the left-hand side 25 being arranged to the left of the right-hand side 24 in the configuration with the device 1 mounted on the electrical switchboard. The front 20 and the back 21, along with the sides 24 and 25, connect the ends 22 and 23 to one another in the direction ZI. The front 20, the back 21 and the ends 22 and 23 connect the sides 24 and 25 to one another in the direction X1. The sides 24 and 25 and the ends 22 and 23 connect the back 21 to the front 20, in the direction Y1. Preferably, the front 20 comprises a protruding portion 95, a set-back portion 96 and a set-back portion 97. The set-back portion 96 connects the protruding portion 95 to the end 22, while the set-back portion 97 connects the protruding portion 95 to the end 23. The protruding portion 95 is arranged so as to protrude in the direction Y1 with respect to the portions 96 and 97. In Figures 3, 5, 7 and 9, the side 24 and the protruding portion 95 of the front 20 are omitted to reveal the content of the housing 2. In Figures 4, 6 and 8, the side 25 and the protruding portion 95 of the front 20 are omitted to reveal the content of the housing 2. Preferably, the housing 2 comprises an internal partition 27 visible in Figures 3 to 9, which extends parallel to the directions Y1 and ZI and separates an internal volume of the housing 2 into a right-hand compartment 28, visible in Figures 3, 5, 7 and 9, and into a left hand compartment 29, visible in Figures 4, 6 and 8. The compartments 28 and 29 are distributed along the direction X1. The compartment 28 is delimited by the partition 27 and the side 24 in the direction X1, by the ends 22 and 23 in the direction Z1, and by the front 20 and the back 21 in the direction Yl. The compartment 29 is delimited by the partition 27 and the left-hand side 25 in the direction X1, by the ends 22 and 23 in the direction ZI, and by the front 20 and the back 21 in the direction Y1. In order to be integrated into the electrical switchboard, the device 1 is designed to be fastened to the fastening rail 18 via the housing 2. For this purpose, the device 1 advantageously comprises, on the back 21, any appropriate fastening means, such as, for example, a snap-in clip 26 as visible in Figures 2 to 8, via which the device 1 is able to be fixedly attached to the rail 18, preferably by hand without any tools. When the device 1 is mounted on the electrical switchboard, the back 21 of the housing 2 is directed towards the rail 18 and the front 20 is opposite the rail 18. Preferably, when two devices 1 are juxtaposed within the electrical switchboard as shown in Figure 1, the left-hand side 25 of a first device 1 is against the right-hand side 24 of a second device 1. In the present example, the device 1 comprises a conductive path 3, visible in Figures 3, 5 and 7, and a conductive path 4, visible in Figures 4, 6 and 8, each conductive path forming one of the poles of the device 1. The conductive path 3 comprises an input terminal 31, an output terminal 32, a mobile contact 33 and a fixed contact 34, which are visible in Figures 3, 5 and 7. The conductive path 4 comprises an input terminal 41, an output terminal 42, a mobile contact 43 and a fixed contact 44, which are visible in Figures 4, 6 and 8. Each conductive path 3 or 4 constitutes a separate pole of the device 1. Preferably, the path 3 constitutes a phase pole, while the path 4 constitutes a neutral pole. In other words, each conductive path is intended to be brought to a separate potential. Preferably, the device 1 is designed to be used at a low voltage, that is to say a voltage of between 100 V (volts) and 600 V, for example a voltage of 230 V. Within the device 1, the conductive paths 3 and 4 are preferably electrically isolated from one another. For this purpose, each conductive path is essentially, if not entirely, arranged in one of the respective compartments 28 or 29 of the housing 2. Here, the conductive path 3 is arranged in the right-hand compartment 28 and the conductive path 4 is arranged in the left-hand compartment 29. The internal partition 27 is advantageously interposed between the paths 3 and 4 so as to guarantee that they are electrically isolated from one another. The input terminals 31 and 41 are arranged at the upper end 23 of the housing 2, so as to be able to be electrically connected to the connectors 16 of the supply comb 17 belonging to the electrical switchboard. In practice, for each terminal 31 and 41 respectively at one of the connectors 16, the connector 16 in question is plugged into the input terminal in question. Each input terminal advantageously has a respective cavity, open at the end 23 in order to receive the connector 16 in question, and a respective screw, the head of which emerges, for example, at the front 20, here in the set-back portion 97, in order to hold this input terminal and this connector together and ensure good electrical contact between them. Here, the input terminal 31 is connected to one connector 16 belonging to a first group of connectors of the supply comb 17 brought to the phase potential, whereas the input terminal 41 is connected to another connector 16 belonging to a second group of connectors of the supply comb 17 brought to the neutral potential.

As a variant, any terminal described here may be of a type other than a screw terminal. For example, any terminal may be an automatic terminal, a plug-in terminal or a quick connector terminal. The output terminals 32 and 42 are preferably arranged at the lower end 22 of the housing 2, so as to be able to be electrically connected to an electrical circuit of the electrical installation, supplying power to receiving loads, for example, in the case of a building, household appliances and/or lights. Depending on the position of the contacts 33 and 43, these receiving loads might or might not then be supplied with the electrical power provided to the input terminals 31 and 41 by the supply comb 17, through the device 1. Each output terminal advantageously has a respective cavity, open at the end 22 in order to receive a respective connector of the circuit to be supplied with power, and a respective screw, the head of which emerges, for example, at the front 20, here in the set-back portion 96, in order to hold this input terminal and this connector together and ensure good electrical contact between them. As visible in Figures 3, 5 and 7, the fixed contact 34 is here fixed with respect to the housing 2, and is electrically connected to the input terminal 31. The mobile contact 33 is here electrically connected to the output terminal 32. Here, the fixed contact 34 is arranged in the direction ZI with respect to the mobile contact 33. The mobile contact 33 preferably comprises a conductive end 35, performing the function of an electrical contact, and which is electrically connected to the output terminal 32. The mobile contact 33 preferably comprises a contact carrier 36 that carries the end 35. The mobile contact 33 is able to pivot, with respect to the housing 2, via the contact carrier 36, about a mobile contact axis X33, parallel to the direction XI. This pivoting is performed between a conduction position, shown in Figure 3, and an isolation position, shown in Figure 5. In the conduction position of the mobile contact 33, the conductive end 35 is in electrical contact with the fixed contact 34, thereby electrically connecting the input terminal 31 to the output terminal 32. In the isolation position, the end 35 of the mobile contact 33 is spaced from the fixed contact 34, so as to be electrically isolated therefrom, thereby breaking the electrical connection between the terminals 31 and 32, such that the terminals 31 and 32 are electrically isolated from one another. As visible in Figures 4, 6 and 8, the fixed contact 44 is here fixed with respect to the housing 2, and is electrically connected to the input terminal 41. The mobile contact 43 is here electrically connected to the output terminal 42. The fixed contact 44 is here arranged in the direction ZI with respect to the mobile contact 43.

The mobile contact 43 preferably comprises a conductive end 45, performing the function of an electrical contact, and which is electrically connected to the output terminal 42. The mobile contact 43 also comprises a contact carrier 46 that carries the end 45. The mobile contact 43 is able to pivot, with respect to the housing 2, via the contact carrier 46, about the axis X33, i.e. about the same axis as that of the mobile contact 33. However, provision could be made for the pivoting of the contacts 33 and 43 to occur about two distinct, preferably parallel, axes. This pivoting of the contact 43 is performed between a conduction position, shown in Figure 4, and an isolation position, shown in Figure 6. In the conduction position of the mobile contact 43, the conductive end 45 is in electrical contact with the fixed contact 44, thereby electrically connecting the input terminal 41 to the output terminal 42. In the isolation position, the end 45 of the mobile contact 43 is spaced from the fixed contact 44, so as to be electrically isolated therefrom, thereby breaking the electrical connection between the terminals 41 and 42, such that the terminals 41 and 42 are electrically isolated from one another. The mobile contacts 33 and 43 are advantageously able to pivot independently with respect to the housing 2. When they move from their respective isolation position to their respective conduction position, the mobile contacts 33 and 43 advantageously rotate in the same direction. In particular, the conductive ends 35 and 45 are then displaced opposite to the direction ZI, that is to say towards the output terminals 32 and 42, that is to say towards the lower end 22. The device 1 comprises an arc extinguishing chamber 9, which is shown in Figures 3, 5 and 7. The arc extinguishing chamber 9 aims to give the device 1 an extinguishing capability by dissipating any electric arc that might occur when the mobile contact 33 moves from the conduction position to the isolation position, that is to say when it moves away from the fixed contact 34. The arc extinguishing chamber 9 is advantageously arranged in the right hand compartment 28, between the fixed contact 34 of the input terminal 31, along the back 21. The input terminal 31 is interposed between the arc extinguishing chamber 9 and the upper end 23. The arc extinguishing chamber 9 comprises for example a stack of metal sheets 91, sometimes called fins or separators, superposed at a distance from one another, here along the direction Y1. The sheets 91 are, for example, held between the internal partition 27 and the right-hand edge 24 of the housing 2. The arc extinguishing chamber 9 advantageously comprises isolating cheeks, not shown, between which the sheets 91 are arranged. The arc extinguishing chamber 9 advantageously comprises two switching horns 92 and 93. The horn

92 is electrically connected to the path 3, in the continuation of the fixed contact 34. The horn 93 is electrically connected to the path 3, between the mobile contact 33 and the output terminal 32. The horn 92 is preferably curved towards the interior of the arc extinguishing chamber 9, i.e. towards the sheets 91, and is arranged facing the horn 93. Thus, when the contact 33 is switched to the isolation position, the potential electric arc is guided to the sheets 91 via the horns 92 and 93, so as to be split and extinguished within the chamber 9. The electrical protection device 1 further comprises at least one tripping device. In the example illustrated, the protection device comprises three tripping devices 6, 7 and 8, which are configured so as each to be excited by an electrical fault of a distinct respective predetermined type. Each tripping device 6, 7 and 8 is designed to individually trigger placing of the contacts 33 and 43 in the isolation position, when the tripping device 6, 7 or 8 in question is excited. The tripping device 6, visible in Figures 3, 5 and 7, is configured so as to be excited by a short-circuit electrical fault that is liable to occur between the conductive paths 3 and 4 or between the conductive path 3 and ground. The tripping device 6 is therefore in particular excited by a short circuit that might occur downstream of the output terminals 32 and 42, on the electrical circuit supplied with power through the device 1, or on one of its loads. In this case, this is a phase-to-neutral short circuit or phase-to-ground short circuit. Here, the tripping device 6 is arranged in the right-hand compartment 28, and connected in series on the conductive path 3. In the direction ZI, the tripping device 6 is arranged between the input terminal 31 and the fixed contact 34. In the direction Yl, the tripping device 6 is arranged between the arc extinguishing chamber 9 and the front 20 of the housing 2. In the direction X1, the tripping device 6 is arranged between the right-hand side 24 of the housing and the internal partition 27 of the housing. The tripping device 6 is sometimes called a magnetic tripping device. In particular, the tripping device 6 is in the form of a magnetic actuator, which here comprises an electromagnetic winding 61 and a mobile core 62. The core 62 is visible only in Figure 7. The input terminal 31 is electrically connected to the fixed contact 34 via the tripping device 6, in particular the electromagnetic winding 61. When a short circuit occurs between the conductive paths 3 and 4, or between the conductive path 3 and ground, in particular downstream of the output terminals 32 and 42, the intensity of the current flowing in the winding 61 suddenly becomes very high, so as to generate an electromagnetic force at the winding 61 large enough to displace the mobile core 62 from a rest position, shown in Figures 3 and 5, to a tripped position, shown in Figure 7, with respect to the housing 2. Here, the displacement of the core 62 from the rest position to the tripped position takes place in a direction opposite to the direction ZI, that is to say towards the lower end 22 of the housing. Once the fault has ended, the current flowing in the winding 61 is no longer high enough to hold the core 62 in the tripped position, such that the core 62 is advantageously returned to the rest position, for example by a spring belonging to the tripping device 6, not shown. The tripping device 7, visible in Figures 3, 5 and 7, is configured so as to be excited by an electrical fault of another predetermined type, specifically an overload electrical fault that is liable to occur between the conductive paths 3 and 4. The tripping device 7 is therefore in particular excited by an overload that might occur downstream of the output terminals 32 and 42, on the electrical circuit supplied with power through the device 1, or on one of its loads. This type of fault may occur when one or more loads connected to this electrical circuit impose an excessively high current demand. Here, the tripping device 7 is arranged in the right-hand compartment 28, and connected in series on the conductive path 3. In the direction ZI, the tripping device 7 is arranged between the output terminal 32 and the mobile contact 33. In the direction Yl, the tripping device 7 is arranged between the back 21 and the front 20 of the housing 2. In the direction X1, the tripping device 7 is arranged between the right-hand side 24 of the housing and the internal partition 27 of the housing. The tripping device 7 is sometimes called a thermal tripping device. In particular, the tripping device 7 is in the form of a thermal actuator, which is formed here by an electrically conductive bimetal strip. When a sufficiently large electric current flows through the bimetal strip for a long enough time, the bimetal strip is heated through Joule heating and deforms. The mobile contact 33 is electrically connected to the output terminal 32 via the tripping device 7, that is to say here via the bimetal strip. Preferably, a flexible braid 71, belonging to the path 3, electrically connects the mobile contact 43 to the tripping device 7. When an overload occurs, in particular downstream of the output terminals 32 and 42, the strength of the current flowing in the bimetal strip forming the tripping device 7 raises the temperature of the bimetal strip until it is caused to deform. Once the fault has ended, the bimetal strip cools down and returns to its initial shape. The tripping device 8 is configured so as to be excited by an electrical fault of another predetermined type, specifically a differential electrical fault that is for example liable to occur between the conductive paths 3 and 4. The tripping device 8 is therefore in particular excited by a current leak to ground, which may occur downstream of the output terminals 32 and 42, thus causing a difference between the value of the strength of the current flowing within the conductive path 3 and the value of the strength of the current flowing within the conductive path 4. More specifically, the tripping device 8 is excited when a differential current exceeds a predetermined value, for example 30 mA (milliamperes), this differential current being equal to the difference between the current flowing in the path 3 and the current flowing in the path 4. Here, the tripping device 8 extends at the same time into the compartments 28 and 29, passing through the internal partition 27. In the direction Z, the tripping device 8 is advantageously arranged between the output terminals 32 and 42, on the one hand, and the mobile contacts 33 and 43, on the other hand. The tripping device 8 is sometimes called a differential tripping device. Preferably, the tripping device 8 comprises a differential sensor 81 that extends at the same time into the compartments 28 and 29, being arranged along the back 21 of the housing 2. Preferably, as is visible in Figures 4, 6 and 8, the tripping device 8 comprises a relay 82 that extends only into the left-hand compartment 29, being, for example, arranged between the front 20 and the differential sensor 81. The relay 82 comprises here a mobile rod 83, which is displaced with respect to the housing 2 between a rest position, shown in Figures 4 and 6, and a tripped position, shown in Figure 8, when the tripping device 8 is excited. Here, the displacement of the mobile rod 83 from the rest position to the tripped position takes place in the direction ZI, that is to say towards the upper end 23. The differential sensor 26 comprises, for example, a ferromagnetic torus, carrying two electromagnetic windings, one formed by the path 3 and the other formed by the path 4. The electromagnetic winding of the path 3 is advantageously formed by a part of the path 3 that electrically connects the mobile contact 33 to the output terminal 32. More specifically, the electromagnetic winding of the path 3 electrically connects the tripping device 7 and the output terminal 32. The electromagnetic winding of the path 4 is advantageously formed by a part of the path 4 that electrically connects the mobile contact 43 to the output terminal 42. For example, the mobile contact 43 and the differential sensor 81 are electrically connected using a braid, not shown. The torus of the differential sensor 81 advantageously bears a third winding, which is not visible in the figures, connected to the relay 82. Because the three windings of the tripping device 8 are wound around the same torus, an electric current is induced within the winding connected to the relay 82 when the differential current of the paths 3 and 4 is non-zero. The third winding then electrically supplies the relay 82 with the induced current. Preferably, the displacement of the rod 83 from the rest position to the tripped position is actuated by the relay 82 only on the basis of the electric current induced by the sensor 81. Thus, no other energy source is envisaged for the tripping device 8. More generally, the relay 82 is preferably configured to actuate the displacement of the rod 83 to the tripped position just under the action of the electrical energy from the differential sensor 81, when the differential current exceeds the predetermined threshold. Once the mobile rod 83 has reached the tripped position, it should be returned to the rest position so as to rearm the relay 82 and thus allow the relay 82 to actuate the rod 83 again in the event of a differential fault, as explained below. The electrical protection device 1 also comprises a switching mechanism 10. The switching mechanism 10 is housed in the housing 2, partially in the compartment 28 and in the compartment 29. The switching mechanism 10 is configured so as to switch between an armed configuration, shown in Figures 3 and 4, in which the mechanism 10 places the mobile contacts 33 and 43 in the conduction position, and a tripped configuration, shown in Figures 5 and 6, in which the switching mechanism 10 places the mobile contacts 33 and 43 in the isolation position. In the present example, the switching mechanism 10 comprises a stirrup 101, visible in Figures 3 to 9. The stirrup 101 is able to pivot with respect to the housing 2 about a stirrup axis X101, parallel to the axis X33. The stirrup 101 extends at the same time into the compartments 28 and 29, being borne by the internal partition 27, straddling it. When the mechanism 10 is in the armed configuration, the stirrup 101 is in a first orientation, called the "armed position" with respect to the housing 2, about the axis X101. When the mechanism 10 is in the tripped configuration, the stirrup 101 is in a second orientation, called "tripped position", about the axis X1O1. The mechanism 10 actuates the mobile contacts 33 and 43 via the stirrup 101. In particular, the stirrup 101 comprises a plate 102, arranged in the compartment 29, and a plate 103, sometimes called the counter-plate, arranged in the compartment 28. The plates 102 and 103 are fixed with respect to one another, being arranged on either side of the internal partition 27. The plates 102 and 103 pivot as one about the axis X101, following the same movement as the stirrup 101 in its entirety. As shown in Figures 4, 6 and 8, the stirrup 101 comprises, for example, a cam 105, here formed by the plate 102. The cam 105 is arranged in the left-hand compartment 29. The stirrup 101 drives the mobile contact 43 via the cam 105, from the conduction position to the isolation position, when the stirrup 101 is pivoted from the armed position to the tripped position. To drive the mobile contact 66 in rotation, the cam 105 bears against the contact carrier 46. The switching mechanism 10 advantageously comprises a spring 106, called the "contact spring", which is arranged in the left-hand compartment 29 bearing both on the stirrup 101, here on the plate 102, and on the mobile contact 43, here on the contact carrier 36. Thus, when the stirrup 101 is pivoted from the tripped position to the armed position, the stirrup 101 drives the contact 43 from the isolation position to the conduction position via the spring 106. Provision is made for the spring 106 to apply a force to the contact 43, by bearing on the stirrup 101, preferably on the cam 105, which tends to press the mobile contact 43 against the fixed contact 44, when the stirrup 101 is in the armed position. This force makes it possible to ensure satisfactory contact pressure between the mobile contact 43 and the fixed contact 44. As shown in Figures 3, 5 and 7, the stirrup 101 comprises, for example, a cam 107, here formed by the plate 103. The cam 107 is arranged in the right-hand compartment 28. The stirrup 101 drives the mobile contact 33 from the conduction position to the isolation position, when the stirrup 101 is pivoted from the armed position to the tripped position. To drive the mobile contact 33 in rotation in this direction, the cam 107 bears against the contact carrier 36. The switching mechanism 10 advantageously comprises a spring 108, called the "contact spring", which is arranged in the right-hand compartment 28 bearing both on the stirrup 101, in particular on the plate 103, and on the mobile contact 33, in particular on the contact carrier 36. Thus, when the stirrup 101 is pivoted from the tripped position to the armed position, the stirrup 101 drives the contact 33 from the isolation position to the conduction position via the spring 108. Provision is made for the contact spring 108 to apply a force to the contact 33, by bearing on the plate 103, preferably on the cam 107, which tends to press the mobile contact 33 against the fixed contact 34, when the stirrup 101 is in the armed position. This force makes it possible to ensure satisfactory contact pressure between the mobile contact 33 and the fixed contact 34. The switching mechanism 10 further comprises a spring 109, called the "stirrup spring", visible in Figures 4, 6 and 8. The stirrup spring 109 is arranged here in the left-hand compartment 29 of the housing 2. The stirrup spring 109 applies a force, called the "tripping force", to the stirrup 101, here via the plate 102, by bearing on the housing 2, which tends to displace the stirrup 101 from the armed position to the tripped position. In other words, the tripping force tends to switch the mechanism 10 from the armed configuration to the tripped configuration. In the example illustrated, the stirrup spring 109 is a helical torsion spring, mounted on the internal partition 27, a first branch 110 of which bears against an end stop formed by the partition 27 of the housing 2 and a second branch 111 of which bears against an end stop belonging to the plate 102, to apply the triggering force to the stirrup 101. The electrical protection device 1 also comprises a switching control 5. The control 5 is designed to be actuated by a user, between an opening position and a closing position. The switching control 5 takes the form here of a stick, which is able to pivot, with respect to the housing 2, about a stick axis X5, parallel to the axis X1, between a closing position, shown in Figures 3 and 4, and an opening position, shown in Figures 5 and 6. The switching control 5 here comprises a base 51, via which the stick is attached to the housing 2 so as to be able to pivot. The base 51 is arranged through an opening belonging to the front 20, while closing off this opening. In particular, the control 5 passes through the protruding portion 95 of the front 20, through which said opening is made. In the direction of the axis X5, the base 51 advantageously extends on either side of the internal partition 27. In other words, the control 5 is advantageously centred in the direction X1, on the front 20. The switching control 5 comprises a handle 52, carried by the base 51, and via which a user is able to actuate the control 5 in rotation. To be accessible to the user, the handle 52 is arranged outside the housing 2. The switching mechanism 10 advantageously comprises a spring 53, called the "control spring", visible in Figures 4, 6 and 8. The control spring 53 applies a force to the control 5 by bearing on the housing 2, which tends to return the control 5 from the closing position to the opening position. For example, the control spring 53 is a helical torsion spring, housed inside the base 51 about the stick axis X5, and one branch of which bears on the control 5 and another branch of which bears on the internal partition 27. The position of the control 5, visible from the exterior of the housing 2, visually indicates to the user the current configuration controlled for the device 1, namely placing the contacts 33 and 43 in the isolation position when the control 5 is in the opening position, and placing the contacts 33 and 43, in the conduction position when the control 5 is in the closing position. The switching mechanism 10 advantageously comprises a connecting rod 54, visible in Figures 4, 6 and 8. The connecting rod 54 is for example arranged in the left-hand compartment 29. The connecting rod 54 comprises an end 55 attached to the control 5, in particular to the base 51. By way of this end 55, the connecting rod 54 is able to pivot with respect to the control 5 about an axis that is parallel and non-coincident with the stick axis X5.

Thus, the rotation of the control 5 is linked to a crank movement, i.e. a circular arc around the axis X5, of the end 55. The connecting rod 54 comprises an end 56, opposite the end 55. As explained below, the connecting rod 54 can be slaved to or released from the stirrup 101, in order to slave or decouple the position of the control 5 to or from that of the stirrup 101. In the present example, the end 56 is received in a channel 112, made in the plate 102, in order to be guided along this channel 112. This channel 112 allows a circular displacement of the end 56 with respect to the plate. This circular displacement takes place here in a plane parallel to the directions Y1 and ZI. The switching mechanism 10 advantageously comprises a locking latch 115, visible in Figures 3 to 10. As visible in Figures 4, 6, 8 and 10, at least part of the latch 115 is arranged in the same compartment as that of the connecting rod 54, so as to interact therewith, here the left-hand compartment 29. At least part of the latch 115 extends into the one or more compartments housing the tripping devices 6, 7 and 8, so as to interact mechanically therewith, here the compartments 28 and 29. The latch 115 is advantageously carried by the stirrup 101. The latch 115 moves between a locking configuration, shown in Figures 3 to 6 and 10, and an unlocking configuration, shown in Figures 7 to 9. As explained below, each tripping device 6, 7 and 8 is configured so as to switch the locking latch 115 from the locking configuration to the unlocking configuration, directly or indirectly, when said tripping device 6, 7 or 8 in question is excited by an electrical fault of the type predetermined for this tripping device. In the present example, the latch 115 comprises a lock 116 and a hook 117 that interact with one another. The hook 117 extends here at the same time into the compartments 28 and 29, so as to be visible in Figures 3 to 10. In practice, provision is made for the hook 117 to extend at the same time into the one or more compartments receiving the tripping devices so as to be actuated thereby, directly or indirectly. The hook 117 also extends into the compartment where the lock 116 is located in order to interact therewith. The hook 117 is carried by the stirrup 101, while being able to pivot with respect to the stirrup 101 about an axis X117, called the "hook axis", here parallel and non-coincident with the stirrup axis X1O1. This pivoting is brought about when the latch 115 moves between the locking and unlocking configurations. Here, the lock 116 extends into the left-hand compartment 29, so as to be visible in particular in Figures 4, 6, 8 and 10. However, in the example, a portion of the lock 116 can be seen in Figures 3, 5, 7 and 9, projecting beyond the stirrup 101, namely an arm 148 discussed further below. In practice, provision is made for the lock 116 to extend, for the most part, into the same compartment as that of the connecting rod 54 so as to interact therewith. The lock 116 is carried by the stirrup 101, while being able to pivot with respect to the stirrup 101 about an axis X116, called the "lock axis", here parallel and non-coincident with the axis X101. In the locking configuration, the hook 117 is in an orientation called the "holding orientation", in which the hook 117 holds the lock 116 in an orientation called the "capture orientation". For this purpose, the hook 117 comprises, for example, a radial arm 118 against which the lock 116 rotationally abuts. In the unlocking configuration, the hook 117 is in an orientation called "unhooking orientation", in which the hook 117 allows the lock 116 to be pivoted with respect to the stirrup 101 out of its capture orientation. In the present example, at the angle of Figure 4, the hook 117 pivots clockwise so as to change from the holding orientation to the unhooking orientation. In other words, in the locking configuration of the locking latch 115, the hook 117 and the lock 116 are in contact, such that the lock 116 is prevented from rotating about the lock axis X116 by the hook 117, while in the unlocking configuration, the hook 117 and the lock 116 are not in contact, such that the lock 116 is not prevented from pivoting about the lock axis X116 by the hook 117. The switching mechanism 10 advantageously comprises a spring 119, called "latch spring", visible in Figures 3, 5, 7 and 9. Here, the latch spring 119 is provided in the right hand compartment 28. The spring 119 applies a force to the hook 117, bearing on the plate 103 of the stirrup 101, which tends to return the hook 117 to the holding orientation. For the latch 115 to return to the locking configuration, the hook 117 is allowed to be moved from the unhooking orientation to the holding orientation by the lock 116 under the action of the spring 119, when the lock 116 is once again in the capture orientation. For example, the spring 119 is a helical torsion spring, one branch of which bears on the stirrup 101, here on the plate 103, and another branch of which bears on the hook 117. In the locking configuration of the latch 115, the end 56 of the connecting rod 54 is captured by the locking latch 115, in particular by the lock 116, itself held in the capture orientation by the hook 117 which is in the holding orientation. Specifically, the end 56 is accommodated in a hole 120 through the lock 116 so as to prevent the end 56 from displacing along the channel 112 of the stirrup 101. In the locking configuration of the latch 115, the second end 56 is attached to the stirrup 101 and is pivotable with respect to said stirrup 101, here through cooperation of the end 56 with the hole 120 and the channel 112. As a result, in the locking configuration of the latch 115, the position of the switching control 5 is subject to the position of the stirrup 101, via the connecting rod 54 and the latch 115. In this situation, when the control 5 is in the opening position, the stirrup 101 is in the tripped position, i.e. the mechanism 10 is in the tripped configuration. When the control 5 is in the closing position, the stirrup 101 is in the armed position, i.e. the mechanism 10 is in the armed configuration. In the locking configuration of the latch 115, when the control 5 is actuated from the opening position to the closing position by the user, the stirrup 101 is placed in the armed position, via the connecting rod 54, the second end 56 of which is captured by the latch 115 so as to drive the stirrup 101. Since the stirrup 101 is placed in the armed position, it places the mobile contacts 33 and 43 in the conduction position, via the springs 106 and 108. In the locking configuration of the latch 115, when the switching control 5 is placed in the opening position by the user, the stirrup 101 is placed in the tripped position, via the connecting rod 54, the end 56 of which is captured by the locking latch 115 so as to drive the stirrup 101. Since the stirrup 101 is placed in the tripped position, it places the contacts 33 and 43 in the isolation position, via the cams 105 and 107. When the locking latch 115 is in the locking configuration, the stirrup 101 is in the armed position and the switching control 5 is in the closing position, the stirrup 101 and the switching control 5 hold one another in position. In this case, the stirrup 101 is held in the armed position counter to the stirrup spring 109 by the control 5, via the connecting rod 54, and the control 5 is held in the closing position counter to the control spring 53, via the connecting rod 54. To obtain this mutual holding, provision is made, when the locking latch 115 is in the locked configuration, the stirrup 101 is in the armed position and the control 5 is in the closing position, for the connecting rod 54 to be in a "locking" orientation, as shown in Figure 4. Here, the connecting rod 54 is in the locking orientation when the end 55 is positioned in a direction opposite the direction Y1 with respect to a straight line, parallel to the directions Y1 and Z Iand passing through the stick axis X5 and the end 56. When the user actuates a pivoting of the control 5 to the opening position, the end 55 is displaced in a circular arc so as to come closer to this straight line. When the ends 55 and 56 are aligned with the axis X5, and when the end 55 is arranged in the direction Y1 with respect to said straight line, the connecting rod 54 is no longer in the locking orientation, such that it is no longer ensured that the stirrup 101 and the control 5 hold one another in position. Then, under the effect of the springs 53 and 109, the stirrup 101 is displaced to the tripped position and the control 5 is returned to the opening position. When the stirrup 101 is in the tripped position and the control 5 is in the opening position, they are held in these positions by the springs 53 and 109. In summary, when the latch 115 is in the locking configuration and the control 5 is in the closing position, the control 5 places the mechanism 10 in the armed configuration. When the latch 115 is in the locking configuration and the control 5 is in the opening position, the control 5 places the mechanism 10 in the tripped configuration. Each tripping device 6, 7 and 8 is individually configured so as to trip the switching mechanism 10 being placed in the tripped configuration, while the switching mechanism 10 was in the armed configuration, when said tripping device 6, 7 or 8 is excited by the electrical fault of the type predetermined for this tripping device 6, 7 or 8. This leads to the mobile contacts 33 and 43 being placed in the isolation position by the switching mechanism 10 when the electrical fault occurs, to end the electrical fault. For this, each tripping device 6, 7 and 8 is designed to trigger, directly or indirectly, switching of the latch 115 from the locking configuration to the unlocking configuration. When the latch 115 is in the unlocking configuration, the end 56 of the connecting rod 54 is free to move along the channel 112 of the stirrup 101. In practice, the unlocking configuration of the latch 115 allows rotation of the lock 116 about the lock axis X116, the lock 116 being held by the hook 117, then in the unhooking orientation. In other words, in the unlocking configuration of the latch 115, the position of the control 5 is no longer slaved to the position of the stirrup 101. Thus released, the connecting rod 54 no longer holds the stirrup 101 and the switching control 5 in position with one another. The control 5 is then returned to the opening position under the action of the control spring 53 and the stirrup 101 is returned to the tripped position under the action of the stirrup spring 109, the stirrup 101 then driving the mobile contacts 33 and 43 into the isolation position. In particular, the stirrup 101 may be displaced between the armed position and the tripped position, regardless of whether the control 5 is in the closing position or in the opening position, since displacement of the end 56 with respect to the stirrup 101 is allowed by the latch 115 along the channel 112. In particular, in the unlocking configuration, the latch 115 allows the switching mechanism 10 to switch from the armed configuration to the tripped configuration, i.e. the stirrup 101 to go from the armed position to the tripped position, even if the control is in the closing position. This displacement of the stirrup 101 is performed automatically under the action of the stirrup spring 109, applying the tripping force to the stirrup 101. While the latch 115 was still in the unlocking configuration, between the moment when the stirrup 101 left the armed position but had not yet reached the tripped position, the lock 116 reaches an orientation called the "transition orientation", distinct from the capture orientation, under the action of the end 56 of the connecting rod 54. Between the transition orientation and the capture orientation of the lock 116, the end 56 of the connecting rod 54 is advantageously at an end opposite the channel 112. The device 1 is configured so that, when the stirrup 101 has reached the tripped position and, preferably, the control 5 is in the opening position, the connecting rod 54 has returned the lock 116 to the capture orientation. Under the action of the spring 119, the hook 117 is then returned to the holding position to once again hold the lock 116 in the capture orientation. The latch 115 is then once again in the locking configuration, and the control 5 is then once again slaved to the mechanism 10. If the tripping device 8 was the cause of the latch 115 being placed in the unlocking configuration, the configuration shown in Figure 9 is then reached. More generally, provision is made for the switching mechanism 10, in particular the control spring 53, to return the switching control 5 to the opening position when the switching mechanism 10 is placed in the tripped configuration, whether this be through the action of the user on the switching control 5 itself or under the action of tripping performed by one of the tripping devices 6, 7 or 8, freeing the movement of the stirrup 101 with respect to the movement of the control 5. This situation is shown in Figure 9, for the case in which the tripping device 8 was the cause of the latch 115 being placed in the unlocking configuration. To change the locking latch 115 from the locking configuration, shown in Figure 3, to the unlocking configuration, the magnetic tripping device 6 actuates for example a rocker 121 belonging to the switching mechanism 10, the rocker 121 driving the hook 117 to the unhooked position, as shown in Figure 7. Here, the rocker 121 is attached to the housing 2, for example to the internal partition 27, while being able to pivot with respect to the housing 2 about a rocker axis X121 parallel to the stirrup axis X101, between an initial position, shown in Figures 3 and 5, and a switching position, shown in Figure 7. The tripping device 6 is configured to place the latch 115 in the unlocking position so as to switch the mechanism 10 to the tripped configuration when the tripping device 6 is excited by an electrical fault of short-circuit type. In practice, the magnetic tripping device 6 drives the rocker 121 from the initial position to the switching position under the effect of the displacement of the mobile core 62 to the tripped position. The mobile core 62 bears against a first end of the rocker 121, here in a direction opposite the direction ZI. The rocker 121 has a second end, which bears against a limb belonging to the hook 117, in the direction ZI, such that the hook 117 pivots to the unhooking orientation under the action of the pivoting of the rocker 121 to the switching position, counter to the force of the latch spring 119. Once the electrical fault has ended, the mobile core 62 returns to its initial position, and allows the rocker 121 to be returned to the initial position, the rocker 121 thus allowing the hook 117 to be returned to the holding orientation. Under the action of the latch spring 119, the hook 117 returns the rocker 121 to the initial position, while the hook 117 is itself returned to the holding orientation by the latch spring 119. Optionally, to provide faster displacement of the mobile contact 33 from its conduction position to its isolation position when the mobile core 62 is displaced from its rest position to its tripped position, the core 62 also directly drives the mobile contact 33 to the isolation position, via the contact carrier 36. Thus, under the effect of the impact of the mobile core 62, the mobile contact 33 is displaced directly to the isolation position counter to the force generated by the spring 108, without awaiting pivoting of the stirrup 101. With the stirrup 101 then switching rapidly to the tripped position, the contacts 33 and 43 are finally both held in the isolation position. The tripping device 7 is configured to place the latch 115 in the unlocking position so as to switch the mechanism 10 to the tripped configuration when the tripping device 7 is excited by an electrical fault of overload type. To change the locking latch 115 from the locking configuration to the unlocking configuration, provision may be made for the thermal tripping device 7 also to actuate the rocker 121 from the initial position to the switching position, here via a tie rod 122, belonging to the switching mechanism 10, visible in Figures 3, 5 and 7. In the example, the tie rod 122 comprises a first end, attached to the bimetal strip forming the tripping device 7 and guided in translation in a rail formed in the internal partition 27, and a second end fastened to the rocker 121. Thus, through the deformation of the bimetal strip under the effect of an overload electrical fault, the bimetal strip drives the rocker 121 via the tie rod 122 and while being guided by the rail formed in the internal partition 27 in a direction opposite the direction Z1. To change the locking latch 115 from the locking configuration, shown in Figure 4, to the unlocking configuration, the differential tripping device 8 engages a mechanical force amplifier, as shown in particular in Figure 8. The mechanical force amplifier is entirely distinct from the mechanism 10, and essentially comprises a drawer 130, a lock 131, a drawer spring 132, as well as preferably a lock spring 133 and a rearming leg 134. In the present example, the mechanical force amplifier is entirely contained in the compartment 29.

The drawer 130 is mobile, with respect to the housing 2, between an initial position, shown in Figure 4, and an actuation position, shown in Figure 8. For this, the drawer 130 slides with respect to the housing 2 along an axis R130, which is fixed with respect to the housing 2 and is called the "drawer axis". The axis R130 is preferably contained in a plane parallel to the directions Y1 and ZI. Here, the axis R130 is oblique with respect to the directions Y1 and Z1. The drawer 130 is preferably displaced in the direction of the direction ZI so as to be displaced to the actuation position. To be guided in translation, the drawer 130 comprises, for example, two oblong holes, the longest length of which is parallel to the axis R130, and via which the drawer 130 slides on two respective rods belonging to the housing 2, here protruding from the partition 27, parallel to the direction X1. The drawer spring 132 applies a force called the "actuating force" to the drawer 130, which tends to displace the drawer 130 from the initial position to the actuation position. For this, the drawer spring 132 advantageously bears on the housing 2. The drawer spring 132 is here a compression spring oriented parallel to the axis R130, which is interposed between a wall of the housing 2 and a bearing portion of the drawer 130. The spring 132 then pushes the drawer 130 to its tripped position. When the drawer 130 is displaced from the initial position to the actuation position, the drawer 130 drives the latch 115 from the locking configuration to the unlocking configuration. For this, the drawer 130 advantageously comprises a bumper 135 which bears, along the axis R130, against a limb belonging to the hook 117 when the drawer 130 is in the actuation position, as shown in Figure 8. The hook 117 is then switched by the drawer 130 to the unhooking position. The latch 115 thus unlocked allows the displacement of the stirrup 101 to the tripping configuration, causing the displacement of the contacts 33 and 43 to the isolation position. The lock 131 is mobile between a holding position, shown in Figures 4 and 6, in which the lock 131 holds the drawer 130 in the initial position if the drawer is in the initial position, and a release position, shown in Figure 8, in which the lock 131 allows the drawer 130 to be displaced from the initial position to the actuation position. For example, the lock 131 is attached to the housing 2, in particular to the partition 27. To be mobile in this way, the lock 131 is preferably pivotable with respect to the housing 2, about an axis X131 that is fixed with respect to the housing, here parallel to the direction X1. Preferably, for reasons of compactness, a portion of the lock 131 along the axis X131 passes through one of the oblong holes of the drawer 130, participating in guiding the drawer 130. The lock spring 133 exerts a force, called the "holding force", on the lock 131, which tends to displace the lock 131 from the release position to the holding position. For the lock 131 to be able to hold the drawer 130 in the initial position, provision is advantageously made for the drawer 130 to comprise a locking notch 136, which mechanically cooperates with a locking limb belonging to the lock 131, when the lock 131 is in the holding position and when the drawer 130 is in the armed position, counter to the actuating force produced by the spring 132. In this situation, the lock 131 bears against the drawer 130, in the opposite direction to its displacement to the actuation position, here in the direction opposite the direction Z. To bear in this way, provision is made here for the locking limb of the lock 131 to mechanically cooperate with the notch 136. Conversely, when the lock 131 is in the release position, and regardless of the position of the drawer 130, the lock 131 no longer has an influence on the drawer 130, the limb of the lock 131 being away from the notch 136. Thus, the lock 131 allows the displacement of said drawer 130, in particular under the action of the spring 132. Advantageously, provision is made, when the drawer 130 is in the release position, for the drawer to hold the lock 131 in the release position. When the drawer 130 is displaced from the actuation position to the initial position, or even beyond the initial position as shown in Figure 6, the drawer 130 allows the lock 131 to be returned to the holding position under the action of the spring 133. Preferably, when the drawer 130 has been placed in the actuation position, it can be returned to the initial position, and even beyond, by the contact 43, when the contact 43 is displaced from the conduction position to the isolation position. The contact 43 then drives the drawer 130 to the initial position counter to the spring 132, when the contact 43 is displaced from the conduction position to the isolation position under the action of the spring 109 transmitted to the contact 43 by the stirrup 101. For this, provision is made, for example, for the contact carrier 46 to bear directly against the drawer 130 along the axis R130, in the opposite direction to the direction ZI. Making provision for the drawer 130 to be returned even beyond the initial position by the contact 43 makes it possible to ensure that the lock 131 is returned to its holding position. The rearming leg 134 is attached to the housing 2, in particular to the partition 27, and is mobile between a first position, shown in Figure 4, and a second position, shown in Figure 8, or even up to a third position, shown in Figure 6, beyond the second position. To be mobile in this way, the rearming leg 134 is advantageously pivotable with respect to the housing 2 about an axis X134 parallel to the direction XI. As shown in Figure 8, when a differential fault occurs, the mobile rod 83 is actuated to its tripped position, here in the direction ZI, so as to drive the rearming leg from its first position to its second position. Under the action of the displacement of the mobile rod 83 by the relay 82, the rearming leg 134 drives the lock 131 from its holding position to its release position, against the action of the spring 133. More specifically, the leg 134 drives the lock 131 via an actuating limb belonging to the lock 131. Since the lock 131 is in the unlocking position, the drawer 130 is allowed to be displaced from the initial position to the actuation position, under the action of the spring 132. In doing so, the drawer 130 switches the latch 115 from the locking configuration to the unlocking configuration. The released stirrup 101 switches the contacts 33 and 43 from the conduction position to the isolation position, while itself switching from the armed position to the tripped position. During its pivoting to the isolation position, the contact 43 bears against the drawer 130 so as to return the drawer 130 to the armed position, counter to the action of the spring 132, or even, preferably, beyond the armed position. In doing so, the drawer 130 drives the leg 134 to the first position, or even beyond the first position, to the third position. For this, the drawer 130 comprises, for example, an end stop 137, which bears against the leg 134 in the direction opposite the direction ZI. The mobile rod 83 is therefore returned, by the leg 134, to its initial position, or even beyond the initial position, such that the tripping device 8 is rearmed. Making provision for the drawer 130 to be returned even beyond the initial position by the contact 43 advantageously makes it possible to ensure that the leg 134 is returned to a position, here the third position, in which it is certain that the tripping device 8 is rearmed, the rod 83 having been pushed far enough. When the drawer 130 is displaced to the armed position, the drawer 130 allows the lock 131 to be returned to the locking position by the spring 133. In this situation, the force amplifier and the tripping device 8 are returned to their original configuration, so as to allow new tripping if a new fault occurs. At that time, the stirrup 101 is in the tripped position, the contacts 33 and 43 are in the isolation position and the control 5 is in the opening position. This situation is partially shown in Figure 9. As a variant, for the case in which it is not necessary to rearm the tripping device 8, the presence of the leg 134 is optional, and provision may be made for the rod 83 to actuate the lock 131 directly. In this case, it is also not necessary for the contact to return the drawer 130 beyond the initial position, but simply for the drawer 130 to be returned to the initial position. In any case, the force amplifier mentioned above allows the tripping device 8 to cause the mechanism 10 to be placed in the tripped configuration, in particular by using the force produced by the drawer spring 132, even if the rod 83 actuating force produced by the relay

82 is particularly weak. In particular, it is by allowing the drawer 130 to be actuated by the spring 132 that the tripping device 8 triggers the switching of the switching mechanism to the tripped configuration, the drawer 130 placing the latch 115 in the unlocking configuration when the drawer 130 reaches the actuation position, this being allowed by the lock 131 placed in the release position by the tripping device 8. This principle applies to the particular tripping device 8 described here, but could apply to any other type of tripping device that generates a weak force. As a variant, each tripping device mentioned above may be replaced with a tripping device of another type, configured to be excited by a fault of another predetermined type, to cause the mechanism 10 to be placed in the tripped configuration. Figure 11 shows a detail of the device 1 at the protruding portion 95 of the front 20, in which a part of the front 20 has been omitted in order to reveal the content thereof. The device 1 further comprises an indicator 14 and an indicator 15 which are housed in the housing 2, and which are visible in particular in Figures 10 and 11, but which are visible in Figures 3 to 9. Each indicator 14 and 15 is a mechanical indicator, i.e. a moving part as illustrated, or a set of moving parts. The respective position of each indicator 14 and 15 with respect to the housing 2 aims to visually inform the user as to the current configuration of the device 1, in particular without needing to open the housing 2. The indicator 14 is advantageously arranged along the front 20, here along the protruding portion 95. The indicator 14 is mobile, with respect to the housing 2, between a secondary signalling position, shown in Figures 3 to 8 and 10, and a primary signalling position, shown in Figures 9 and 11. To be mobile in this way, the indicator 14 is advantageously slidably guided by the housing 2, along an axis Z14, called the "indicator axis", which is here parallel to the direction ZI. In particular, provision is made for the axis Z14 to be orthoradial with respect to the axis X1O1, i.e. perpendicular to a radius originating at the axis X101 while being at a distance from the axis X1O1. For example, provision is made for the housing 2 to comprise guide rails 141 and 142, which are advantageously formed in the thickness of the protruding portion 95, in the vicinity of the front 20, for guiding the sliding of the indicator 14. Here, the rails 141 and 142 are parallel to the axis Z14, and arranged on either side of the indicator 14, preferably facing one another, while being, for example, distributed parallel to the direction X1. The indicator 14 advantageously bears a light 143. Preferably, in the secondary signalling position, the light 143 is in the direction ZI with respect to the primary signalling position. The front 20 bears a window 144, shown in Figure 2, and shown in dashed line in

Figure 11. Preferably, the window is made through the front 20 at the location of the portion 95. For example, the window 144 is arranged in the direction Z Iwith respect to the control 5, so as to be more readily visible when the control 5 is in the opening position, with the handle 52 directed in the opposite direction to the direction ZI, i.e. away from the window 144. Optionally, the window 144 is glazed, the user being able to look through the glazing by virtue of its transparency. When the indicator 14 is in the primary signalling position, the light 143 is offset with respect to the window 144, so as not to be visible, or to be only partially visible, through the window 144. This is the case in Figure 2. When the indicator 14 is in the primary signalling position, the light 143 is aligned so as to be visible through the window 144 as shown in Figure 11, or at least to be more visible than in the secondary signalling position. Thus, by observing the window 144 from outside the housing 2, the user is informed of the current position of the indicator 14, and therefore of the current configuration of the device 1. More generally, the position of the light 143 with respect to the window 144 is different when the indicator 14 is in the primary signalling position and in the secondary signalling position, so that the user can identify the current position of the indicator 14 through the window 144. More generally, provision is made for the indicator 14 to be visible from the exterior of the housing 2, here through the window 144, for at least one signalling position of the indicator 14, from among the primary signalling position and the secondary signalling position. Preferably, the device 1 comprises two stops 145, which are formed by the housing 2, and two stops 146, each stop 146 being formed by the indicator 14. For example, the stops 145 are each formed within one of the rails 141 and 142. One of the stops 145 formed by the rail 142 is visible in Figure 11. For example, each stop 146 is formed at the end of a respective elastic lug, belonging to the indicator 14, both visible in Figure 11. Preferably, the stops 146 and the elastic lugs are formed on either side of the indicator, and are distributed parallel to the direction X1. The stops 145 and 146 are configured to obstruct the displacement of the indicator 14 from the secondary signalling position to the primary signalling position and to obstruct the displacement of the indicator 14 from the primary signalling position to the secondary signalling position. In other words, each stop 145 bears respectively on one of the corresponding stops 146 when the indicator 14 is displaced from one signalling position to the other, the opposite signalling position being reached only by the stop 145 passing each stop 146, involving here an elastic deformation of the elastic lugs of the indicator 14. Providing these stops 145 and 146 makes it possible to ensure that the indicator 14 holds itself in place in each of its two signalling positions, while still allowing the indicator

14 to be displaced to the other signalling position, when sufficient force is exerted on the indicator 14 for the stops 145 and 146 to pass one another. The indicator 14 is in the primary signalling position, as shown in Figures 9 and 11, to indicate to the user that the contacts 33 and 43 have been placed in the isolation position by one of the tripping devices 6, 7 or 8. The indicator 14 is in the secondary signalling position, as shown in Figures 3 to 8 and 10, when the contacts 33 and 43 are in the conduction position and when the contacts 33 and 43 are in the isolation position, these having been placed in the isolation position through the control 5 being placed in the opening position, even though no tripping device 6, 7 and 8 has been excited. Thus, in the secondary signalling position, the indicator 14 indicates to the user that no electrical fault has occurred. When the control 5 is displaced from the opening position to the closing position by the user, the indicator 14 is placed or held in the secondary signalling position. Given this operation, the indicator 14 is therefore an "any-fault" indicator. To obtain this operation of the indicator 14, provision is advantageously made for the latch 115 to be configured to place the indicator 14 in the primary signalling position when the latch 115 is placed in the unlocking position, when the mechanism 10 is placed in the tripped configuration, in particular when the stirrup 101 is placed in the tripped position. Conversely, the switching mechanism 10 is configured to place the indicator 14 in the secondary signalling position, when the switching mechanism 10 is placed in the armed configuration, in particular when the stirrup 101 is placed in the armed position, preferably regardless then of the configuration of the latch 115. Specifically, when any of the tripping devices 6, 7 or 8 is excited, the latch 115 is switched to the unlocking configuration, then inevitably allowing switching of the mechanism 10 to the tripped configuration under the action of the spring 109. The indicator 14 then indicates that this event has taken place by being placed in the primary signalling position, until the switching mechanism 10 returns to the armed configuration, necessarily under the action of the control 5 displaced by the user. When the mechanism 10 is once again in the armed configuration, the device 1 is ready to once again trip in the event of the occurrence of one of the electrical faults mentioned above, which the secondary signalling position of the indicator 14 represents. During these displacements of the indicator 14, the stops 145 and 146 are passed each time under the action of the mechanism 10, by virtue of the tripping force provided by the spring 109. More specifically, it is the stirrup 101, during its displacement from the tripped position to the armed position, that displaces the indicator 14 to the secondary signalling position. To that end, the stirrup 101, in particular the plate 102, comprises an arm 149, via which the stirrup 101 bears against an arm 148 belonging to the indicator 14 in the direction of the direction ZI to drive the indicator 14 to the secondary signalling position. The arms 148 and 149 are visible in particular in Figure 10, as well as in Figures 3 to 9. When the indicator 14 is in the secondary signalling position and the stirrup 101 is in the armed position, as shown in Figures 3, 4 and 10, the arms 148 and 149 advantageously bear against one another. When the indicator 14 is in the secondary signalling position and the stirrup 101 is in the tripped position, as shown in Figures 5 and 6, the arms 148 and 149 are distanced from one another, so as to enable the indicator 14 to be placed in the primary signalling position. More specifically, for the latch 115 to be able to actuate the indicator 14, provision is advantageously made for the lock 116 to comprise an arm 147 for driving the indicator 14 via the arm 148 belonging to the indicator 14. The arm 147 is visible in particular in Figure 10, as well as in Figures 3 to 9. When the latch 115 is placed in the unlocking configuration through excitation of one of the tripping devices 6, 7 or 8, as explained above, the lock 116 is displaced out of the capture orientation, namely to the transition orientation, when the stirrup 101 is between the armed position and the tripped position, under the effect of the displacement of the connecting rod 54 and of the stirrup 101 actuated by the springs 53 and 109. The stirrup 101 bearing the latch 115, the latch 115, and in particular the lock 116, is displaced in its entirety by the stirrup 101 when the stirrup is displaced to the tripped position. Provision is made for the arm 147 to be radially further away from the stirrup axis X101 when the lock 116 is in the transition orientation than when the lock is in the capture orientation. As a result, when the stirrup 101 is displaced from the armed position to the tripped position when the latch 115 is still in the unlocking configuration, the arm 148 comes to bear against the arm 147, in the opposite direction to the direction ZI, and drives the displacement of the indicator 14 to the primary signalling position. When the stirrup 101 reaches the tripped position and the control 5 has reached the opening position, the lock 116 has assumed the capture orientation to allow the latch 115 to return to the locking configuration under the action of the spring 119. When the indicator 14 is in the primary signalling position and the stirrup 101 is in the tripped position, as shown in Figures 3, 4 and 10, the arms 148 and 149 advantageously bear against one another. When the indicator 14 is in the secondary signalling position and the stirrup 101 is in the tripped position, as shown in Figures 5 and 6, the arms 148 and 149 are distanced from one another, so as to enable the indicator 14 to be placed in the primary signalling position.

The indicator 15 is advantageously arranged along the front 20, here along the protruding portion 95. The indicator 15 is mobile, with respect to the housing 2, between a secondary signalling position, shown in Figures 3 to 7, 10 and 11, and a primary signalling position, shown in Figures 8 and 9. To be mobile in this way, the indicator 15 is advantageously attached to the housing 2 so as to be pivotable with respect to the housing 2, about an axis X15, called the "indicator axis", which is here parallel to the direction X1. In particular, provision is made for the drawer axis R130 to be orthoradial with respect to the indicator axis X15, i.e. perpendicular to a radius originating at the axis X15 while being at a distance from the axis X15. To that end, provision is made, for example, for the indicator 15 to be mounted on a pivot borne by the partition 27. The indicator 15 advantageously bears a light 153. Preferably, in the secondary signalling position, the light 153 is in the direction ZI with respect to the primary signalling position. Preferably, when the two indicators 14 and 15 are both in the primary signalling position, or both in the secondary signalling position, the lights 143 and 153 are aligned parallel to the direction X1, and are arranged side by side, the light 143 being, for example, in the direction X1 with respect to the light 153. The front 20 bears a window 154, shown in Figure 2, and shown in dashed line in Figure 11. Preferably, the window 154 is made through the front 20 at the location of the portion 95. For example, the window 154 is arranged in the direction ZI with respect to the control 5, so as to be more readily visible when the control 5 is in the opening position, with the handle 52 directed in the opposite direction to the direction ZI, i.e. away from the window 154. Optionally, the window 144 is glazed, the user being able to look through the glazing by virtue of its transparency. Preferably, the windows 144 and 154 are arranged side by side and arranged parallel to the direction X1, with, for example, the window 144 in the direction X1 with respect to the window 154. When the indicator 15 is in the secondary signalling position, the light 153 is offset with respect to the window 154, so as not to be visible, or to be only partially visible, through the window 154. This is the case in Figure 2. When the indicator 15 is in the primary signalling position, the light 153 is aligned so as to be visible through the window 154, or at least to be more visible than in the primary signalling position. Thus, by observing the window 154 from outside the housing 2, the user is informed of the current position of the indicator 15, and therefore of the current configuration of the device 1. More generally, the position of the light 153 with respect to the window 154 is different when the indicator 15 is in the primary signalling position and in the secondary signalling position, so that the user can identify the current position of the indicator 15 through the window 154. More generally, provision is made for the indicator 15 to be visible from the exterior of the housing 2, here through the window 154, for at least one signalling position of the indicator 15, from among the primary signalling position and the secondary signalling position.

Preferably, the device 1 comprises a stop 155, formed by the housing 2, and a stop 156, formed by the indicator 15, which are visible in particular in Figure 1, the stop 156 being more readily visible in Figure 10. For example, the stop 155 is formed by the partition 27. For example, the stop 156 is formed at the end of an elastic lug belonging to the indicator 15. Preferably, the stops 155 and 156 are arranged radially with respect to the axis X15, so as to be able to cooperate mechanically with one another to prevent a rotation of the indicator 15 with respect to the housing 2 about the axis X15. In other words, the stops 155 and 156 are configured to obstruct the displacement of the indicator 15 from the secondary signalling position to the primary signalling position and to obstruct the displacement of the indicator 15 from the primary signalling position to the secondary signalling position. In particular, the stops 155 and 156 bear against one another when the indicator 15 is displaced from one signalling position to the other, the opposite signalling position being reached only by the stop 155 passing the stop 156, involving here an elastic deformation of the elastic lug bearing the stop 156. Providing these stops 155 and 156 makes it possible to ensure that the indicator 15 holds itself in place in each of the two signalling positions, while still allowing the indicator 15 to be displaced to the other signalling position, when sufficient force is exerted on the indicator 15 for the stops 155 and 156 to pass one another. The indicator 15 is in the primary signalling position, as shown in Figures 8 and 9, to indicate to the user that the contacts 33 and 43 have been placed in the isolation position by the tripping device 8. Thus, the indicator 15 allows the user to determine the type of fault that has caused the contacts 33 and 43 to be placed in the isolation position by the device 1, here a differential fault. The indicator 15 is therefore a "specific-fault" indicator. The indicator 15 is in the secondary signalling position, as shown in Figures 3 to 7, 10 and 11, when the contacts 33 and 43 are in the conduction position and when the contacts 33 and 43 are in the isolation position, these having been placed in the isolation position through the control 5 being placed in the opening position, even though no tripping device 6, 7 and 8 has been excited. Thus, in the secondary signalling position, the indicator 15 indicates to the user that no electrical fault has occurred, similarly to the indicator 14. When the control 5 is displaced from the opening position to the closing position by the user, the indicator 15 is placed or held in the secondary signalling position. By observing that the indicator 15 is in the secondary signalling position and that the indicator 14 is in the primary signalling position, the user can infer that the contacts 33 and 43 have been placed in the isolation position by a tripping device other than the tripping device 8, namely either the tripping device 6 or the tripping device 7. Besides the specific information given by the indicator 15, the combination of the two indicators 14 and 15 gives the user the means to very accurately infer the current configuration of the device 1, and in particular the type of electrical fault that might have occurred. To obtain this operation of the indicator 15, provision is advantageously made for the drawer 130 to be configured to place the indicator 15 in the primary signalling position when the drawer 130 is placed in the actuation position from the initial position. Provision is also made for the mechanism 10 to be configured to place the indicator 15 in the secondary signalling position when the switching mechanism 10 is placed in the armed configuration, preferably regardless of the position of the drawer 130. When the tripping device 8 is excited, the drawer 130 is displaced to the actuation position, such that the indicator 15 indicates that this event has taken place by being placed in the primary signalling position by the drawer 130. The other tripping devices 6 and 7 and the control 5 do not act on the drawer; the indicator 15 is displaced only when it is the tripping device 8 that is excited. The indicator 15 is actuated under the action of the spring 132 via the drawer 130, such that provision may be made for the tripping device 8 to produce only a weak force when it is excited. Furthermore, when the drawer 130 has not changed to the actuation position, the indicator 15 remains in the secondary signalling position, in particular despite the latch 115 potentially being placed in the unlocking configuration by the tripping device 6 or the tripping device 7, and/or the mechanism 10 being placed in the tripped configuration by the control 5. Preferably, for the drawer 130 to be able to actuate the indicator 15 from the secondary signalling position to the primary signalling position, provision is made for the drawer 130 to comprise an arm 157, which bears against an arm 158 belonging to the indicator 15, in the direction of the direction ZI, which displaces the light 153 in the direction opposite the direction ZI. The indicator 15 then pivots to the primary signalling position. Thus, the arm 157 does not oppose the return of the drawer 130 in the opposite direction, to the initial position, under the action of the contact 43. Specifically, a space is made between the arm 157 and the arm 158, parallel to the axis R130, when the drawer 130 is in the initial position and the indicator 15 is in the primary signalling position. Reciprocally, by virtue of this space between the arm 157 and 158, the drawer 130 then allows the indicator 15 to be returned to the secondary signalling position at a later time.

Provision is advantageously made for the stirrup 101, during its displacement from the tripped position to the armed position, to displace the indicator 15 to the secondary signalling position. For this, provision is made, for example, for the arm 149 of the stirrup 101 to drive an arm 159 belonging to the indicator 15, by bearing against the arm 159 in the direction of the direction ZI, when the indicator 15 was in the primary signalling position and the stirrup 101 is displaced from the tripped position to the armed position. More specifically, as visible in Figure 9, the arm 149 advantageously hooks onto the arm 159, when the stirrup 101 is displaced from the armed position to the tripped position, so as then to be able to drive the indicator 15 by bearing in the direction of the direction ZI. To that end, the arm 149 comprises, for example, a hook, projecting in the opposite direction to the direction X1 and visible in particular in Figures 3 and 7, and the arm 159 comprises a complementary hook, projecting in the direction X1 and visible in Figures 4, 8 and 10. The hooks are turned towards one another parallel to the direction ZI, once the stirrup 101 has reached the tripped position, when the indicator 15 is in the primary signalling position. When the stirrup 101 goes from the armed position to the tripped position when the indicator 15 is in the primary signalling position, the hooks pass one another, for example through temporary elastic bending of the arm 159. During the displacement of the stirrup 101 from the tripped position to the armed position when the arms 149 and 159 are hooked together, the indicator 15 reaches the secondary signalling position. At that time, the hooks unhook from one another, the arm 149 then being offset in the direction Y1 with respect to the arm 159, because of the stirrup 101 and the indicator 15 being displaced in rotation about distinct axes X101 and X15. Therefore, what is obtained is that when the control 5 is displaced from the opening position to the closing position by the user, the indicator 15 is placed or held in the secondary signalling position. During these displacements of the indicator 15, the stops 155 and 156 are passed each time under the action of the mechanism 10 or of the drawer 130, by virtue of the force provided either by the spring 109 or by the spring 132, depending on the direction of displacement of the indicator 15. In the present example, the device 1 also comprises a test system, which comprises a test control 99, borne by the portion 95 of the front so as to be actuated by a user. Here, the control 5 is arranged in the direction Z Iwith respect to the control 99. The test system further comprises a test circuit, which is configured to be selectively placed in a test configuration by pressing the test control 99. In test configuration, the test circuit intentionally creates an electrical fault of the predetermined type for one of the tripping devices 8. Preferably, the test circuit creates a differential electrical fault. Once the control 99 has been released, the test circuit no longer creates any electrical fault. Any feature described for one embodiment or variant in the foregoing may be implemented for the other embodiments and variants described above, insofar as 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. Electrical protection device, comprising: - a housing; - a first conductive path, which comprises a mobile contact which is housed in the housing and which is mobile between: a conduction position, in which the mobile contact electrically connects a first input terminal to a first output terminal belonging to the first conductive path, and • an isolation position, in which the first input terminal and the first output terminal are electrically isolated from one another; - a switching mechanism, which is housed in the housing and which is configured

to switch between: • an armed configuration, in which the switching mechanism places the mobile contact in the conduction position, and Sa tripped configuration, in which the switching mechanism places the mobile contact in the isolation position; - a first tripping device, which is housed in the housing and which is configured to

trigger switching of the switching mechanism from the armed configuration to the tripped configuration when the first tripping device is excited by an electrical fault of a first type; - a first indicator, which is housed in the housing and which is mobile with respect

to the housing between a primary signalling position and a secondary signalling position, the first indicator being visible from the exterior of the housing for at least one signalling position of the first indicator from among the primary signalling position and the secondary signalling position; characterized in that the electrical protection device further comprises: - a drawer, which is mobile with respect to the housing between an actuation

position, in which the drawer places the first indicator in the primary signalling position, and an initial position, in which the drawer allows the first indicator to be placed in the secondary signalling position; - a drawer spring, which applies an actuation force to the drawer tending to displace

the drawer from the initial position to the actuation position; and

- a lock, which is mobile between a holding position, in which the lock holds the drawer in the initial position when the drawer is in the initial position, and a release position, in which the lock allows the drawer to be displaced from the initial position to the actuation position, the first tripping device being configured to displace the lock from the holding position to the release position when the first tripping device is excited.

2. Electrical protection device according to Claim 1, in which the switching mechanism is configured to place the first indicator in the secondary signalling position when the switching mechanism is placed in the armed configuration.

3. Electrical protection device according to Claim 2, in which: - the switching mechanism comprises a stirrup, which is mounted so as to pivot

with respect to the housing between: • an armed position for placing the mobile contact in the conduction position, the switching mechanism being in the armed configuration when the stirrup is in the armed position, and Sa tripped position for placing the mobile contact in the isolation position, the switching mechanism being in the tripped configuration when the stirrup is in the tripped position; - when the mobile contact is displaced towards the isolation position and the drawer

is in the actuation position, the mobile contact displaces the drawer towards the initial position; and - for the switching mechanism to place the first indicator in the secondary

signalling position when the switching mechanism is placed in the armed configuration, the stirrup is configured to drive the first indicator to the secondary signalling position when the stirrup is displaced to the armed position.

4. Electrical protection device according to any one of the preceding claims, in which: - the electrical protection device further comprises a second conductive path, which

is electrically isolated from the first conductive path and which comprises a second input terminal and a second output terminal; and - the first tripping device is a differential tripping device, which comprises: Sa differential sensor, configured to be excited when a differential current exceeds a predetermined threshold, the differential current being equal to a difference between a first current flowing in the second conductive path and a second current flowing in the first conductive path, and a relay, configured to drive the lock from the holding position to the release position just under the action of electrical energy from the differential sensor and generated under the effect of the differential current, when the differential current exceeds the predetermined threshold.

5. Electrical protection device according to any one of the preceding claims, in which: - to be mobile between the primary signalling position and the secondary signalling position, the first indicator is rotatably mobile with respect to the housing) about an indicator axis ; and - to be mobile between the initial position and the actuation position, the drawer is translatably mobile with respect to the housing along a drawer axis (R130) that is fixed with respect to the housing and orthoradial with respect to the indicator axis.

6. Electrical protection device according to any one of the preceding claims, further comprising a stop , which is configured to obstruct the displacement of the first indicator from the secondary signalling position to the primary signalling position and to obstruct the displacement of the first indicator from the primary signalling position to the secondary signalling position.

7. Electrical protection device according to any one of the preceding claims, in which: - to be mobile between the holding position and the release position, the lock is pivotable with respect to the housing about a lock axis; and - the electrical protection device further comprises a lock spring, which applies a holding force to the lock tending to displace the lock from the release position to the holding position.

8. Electrical protection device according to any one of the preceding claims, in which: - the electrical protection device further comprises a switching control, which is actuable between a closing position and an opening position; - the switching mechanism comprises: a stirrup spring , which exerts a tripping force tending to switch the switching mechanism from the armed configuration to the tripped configuration; a latch, which is configured to change between: 0 a locking configuration, in which the latch slaves the position of the switching control to the configuration of the switching mechanism such that the switching mechanism is in the tripped configuration when the switching control is in the opening position and in the armed configuration when the switching control is in the closing position, and o an unlocking configuration, in which the latch allows the switching mechanism to be switched to the tripped configuration under the action of the tripping force even if the switching control is in the closing position; and - to have the first tripping device trigger the switching of the switching mechanism from the armed configuration to the tripped configuration, the drawer is configured to place the latch in the unlocking configuration when the drawer is in the actuation position.

9. Electrical protection device according to Claim 8, in which: - the electrical protection device further comprises:

Sa second tripping device, which is housed in the housing and which is configured to place the latch in the unlocking configuration so as to switch the switching mechanism to the tripped configuration when the second tripping device is excited by an electrical fault of a second type, and Sa second indicator, which is housed in the housing and which is mobile with respect to the housing between a primary signalling position and a secondary signalling position, the second indicator being visible from the exterior of the housing for at least one signalling position of the second indicator from among the secondary signalling position and the primary signalling position; - the latch is configured to place the second indicator in the primary signalling

position when the switching mechanism is switched to the tripped configuration when the latch is in the unlocking configuration; and - the switching mechanism is configured to place the second indicator in the

secondary signalling position when the switching mechanism is placed in the armed configuration.

10. Electrical protection device according to any one of the preceding claims, in which: - the housing comprises a front comprising a window; and - the first indicator comprises a light, the position of which with respect to the

window is different when the first indicator is in the secondary signalling position and when the first indicator is in the primary signalling position.