Abstract: A switchgear device, for breaking a bidirectional direct current in an electric line, having at least two connection terminals, and an even number of pairs of separable contacts, arc chutes associated with pairs of separable contacts, and tripping mechanisms associated with pairs of separable contacts and connected to one another by a mechanical link, each arc chute having an arc extinguishing chamber and permanent magnets for creating a polarity enabling an electric arc to be removed to an arc extinguishing chamber when current is flowing in the electric line in a predefined direction, the predefined direction being different for one half of the arc chutes.

Abstract: A switchgear device for breaking a bidirectional direct current in an electric line comprising at least two connection terminals, and an even number of pairs of separable contacts, of arc chutes associated with distinct pairs of separable contacts, and of tripping mechanisms associated with distinct pairs of separable contacts and connected to one another by a mechanical link, each arc chute being provided with an arc extinguishing chamber and with permanent magnets presenting a polarity enabling an electric arc to be removed to said arc extinguishing chamber when the current is flowing in the electric line in a predefined direction, said predefined direction being different for one half of the arc chutes.

Abstract: A protection and control assembly includes several multipole electrical switch devices each having a box (10,20,30) provided with input side and output side conducting connection strips, that project along a vertical axis on a horizontal connection area on the input side, and output side respectively, of the box (10,20,30) and that can be inserted in openings (44) of removable power terminal blocks (40,40?,50,50?,60). The assembly includes at least one connecting element (80,80?) that electrically connects the poles of a first and a second electrical device of the assembly, the connecting element (80) being arranged such that it is positioned firstly between the box (10) and a power terminal block (40,50) of the first device, and secondly between the box (20) and a removable power terminal block (40?,50?) of the second electrical device.

Abstract: Screw terminal connected to a conductor device mounted on a piece of electrical equipment to connect at least one conductor, composed of a connection cage and a screw, the cage and/or the screw being movable inside the terminal housing. A pressure device (30) composed of a head plate (31) and a pressure plate (32) connected to each other by two elastic symmetrical wings (33, 34) designed to store torque energy, the head plate being convex in shape and attached by the screw neck. The pressure plate can be applied against a conductor or against the conductor device on the equipment, and the elastic wings are concave in shape, with a concavity that is reduced as the pressure on the screw is increased.

Abstract: The invention relates to a protection and control assembly comprising several multipole electrical switch devices each having a box (10,20,30) provided with input side and output side conducting connection strips, that project along a vertical axis on a horizontal connection area on the input side, and output side respectively, of the box (10,20,30) and that can be inserted in openings (44) of removable power terminal blocks (40,40′,50,50′,60). The assembly comprises at least one connecting element (80,80′) that electrically connects the poles of a first and a second electrical device of the assembly, the connecting element (80) being arranged such that it is positioned firstly between the box (10) and a power terminal block (40,50) of the first device, and secondly between the box (20) and a removable power terminal block (40′,50′) of the second electrical device.

Abstract: An electric switch assembly including a multipolar quick-assembly appliance and a quick-connect appliance, wherein the body of an appliance, or its power terminal strip, is directly fixed and interlocked with to the body of an adjacent appliance. The interconnection between the various appliances is rapidly performed by multipolar blocks capable of being pressed on the front surfaces of appliances and being elastically plugged into their terminals.

Abstract: Screw terminal connected to a conductor device mounted on a piece of electrical equipment to connect at least one conductor, composed of a connection cage and a screw, the cage and/or the screw being movable inside the terminal housing.

Abstract: A switch assembly, particularly for a start-motor including a protection device and a contactor device, and an intermediate component for mechanical association and electrical interconnection between these two devices. The association component 30 has, to adapt a protection device 10 of fixed size to contactor devices 20 of different sizes, an adjustable part 36. The adjustable part 36 is located at the rear of the component 30, which it may be snapped onto in different positions staggered in depth, and offers a lock-on lug 35 located in the direction of the contactor device 20 and fitted with several support forms 39, 40 staggered in height.

Abstract: A pre-wiring device creating a logic function such as an inverter function or a star-delta start function between at least two multi-pole contactors located side by side and used particularly in electrical control equipment of motors. A same pre-wiring device allows connections to be made in an identical way to several sizes of contactors which reduces accordingly the number of different terminal bars to be designed and manufactured. According to a characteristic of the invention, this pre-wiring device includes an upstream pre-wiring terminal bar 30 fitted with metal pins 31 to be inserted into the upstream wiring terminal blocks 11 of the contactors. The pre-wiring device also includes a downstream pre-wiring terminal bar.

Abstract: A switch assembly, particularly for a start-motor including a protection device and a contactor device, and an intermediate component for mechanical association and electrical interconnection between these two devices.

Abstract: Electromechanical protection cutting apparatus comprising a magnetic tripping device and an arc-breaking screen which may be interleaved between at least one fixed contact and one movable contact during an opening caused by the tripping device. The stop (24) associated with the casing (11) of the apparatus to receive the breaking screen (12) is deformable and so arranged as not to restore immediately to the screen the kinetic energy received therefrom.

Abstract: The switch of the invention includes, for each pole, an insulating case having two lateral dividing walls one of which forms part of an open pole housing and the other belongs to a closure element of the case. Each pole includes a contact opening mechanism with which is associated a common transmission piece for coupling said pole with an adjacent pole. This piece is mounted for rotation in a bearing formed in the lateral dividing wall of the case. It has at one end a male coupling element and at a second end a female coupling element, these elements being of complementary shapes for allowing engagement of adjacent and coaxial coupling pieces by fitting together.

Abstract: The apparatus of the invention comprises a case housing a fixed contact and a mobile contact carried by a pivoting lever, with resilient return to the closure position, a rocking lever adapted for acting on the pivoting lever in the opening direction in response to an electric fault and a manual control member connected to the pivoting lever. A single spring exerts on the pivoting lever a first torque in the closure direction and on a drive piece blockable by the rocking lever a force adapted to generate on the lever a second torque antagonistic to and greater than the first one. With the manual control member a third torque antagonistic to and greater than the first one is exerted on the pivoting lever.

Abstract: The disclosure relates to a switching device which comprises a casing provided with an input terminal, an output terminal and, therebetween, an electric circuit including at least two separable contacts as well as a rotary screen presenting an interposable annular sector between the contacts and displaceable vis-a-vis a wall comprising an opening for the passage of at least one of the contacts. The wall delimits in the casing two volumes as well as a lamellar space enabling to provide for the rolling and cooling of the arc. The space communicates with a chamber which enables the gas expulsion with expansion to the chamber. The invention enables to obtain a simple and inexpensive way of reliably breaking the arc.