Abstract: A current sensor for an electrical device including a primary circuit in which a primary current flows. A magnetic circuit includes two identical U-shaped elements between which two studs for air gaps are located. A secondary circuit includes two similar coils of a cylindrical shape, mounted in series and encircling the air gaps, wherein these two coils are made in a continuous way with only one winding operation without any electrical connection between both coils. The winding of the primary circuit encircles one of the two coils. The sensor is designed so that it may be adapted to several nominal ranges of primary current by varying the number of passages of the primary circuit between coils, the number of windings of the secondary circuit, and the thickness of the air gaps.

Abstract: A switching device such as a proximity detector or limit switch, equipped with a body housing a switching block and closed by a cover.

Abstract: This invention relates to a mounting assembly for a detection device (10) provided with a front detection face (19), a back face, a first side face (13) and a stop side face (11) opposite to the first side face (13). The mounting assembly comprises a removable mounting part (20) that comprises an attachment plate (29), a stop lip (21) comprising stop means (22) cooperating with corresponding means (12) on the stop side face (11) of the device (10), click fit means (23) cooperating with corresponding means on the first side face (13) of the device (10) and elastic pressure means (25) pressing on the back of the device (10). The mounting assembly also comprises a fixed mounting part (30) composed of a base plate (31) fixed to a mounting plate (32), the base plate (31) being designed to hold a removable mounting part (20) and the mounting plate (32) being designed to hold the mounting assembly on an arbitrary support.

Abstract: This invention relates to a system for limitation of the output current from a speed controller for three-phase asynchronous electric motors, comprising a PWM type converter in which the electronic switches are controlled by a microcontroller circuit (Mc), characterized by the fact that the microcontroller circuit comprises means (LIC) of calculating the modulus of the current vector using motor phase current measurements, and comparing it with a limitation set value in order to obtain a limitation error (y) and to calculate a correction voltage (&Dgr;V) that is added to the control voltage (V) applied to the motor.

Abstract: A drive mechanism of a circuit breaker comprises a master mechanism and a slave mechanism. The master mechanism is composed of an energy storage sub-assembly comprising an energy storage spring driven by a loading shaft, and an opening and closing sub-assembly driving a switching shaft. The master mechanism is controlled by a closing latch and an opening latch. The slave mechanism comprises a closing assistance spring connected to the loading shaft by means of a loading cam and a multifunctional lever. Rotation of the loading shaft loads the assistance spring and commands relaxation thereof. The assistance spring drives the switching shaft by means of an arm operating in conjunction with a crank in the form of a hook. At the end of closing travel, the arm uncouples from the crank and withdraws so as not to hamper opening of the mechanism. The assistance mechanism enables the energy delivered globally by the drive mechanism to be increased.

Abstract: A switchgear apparatus comprises a vacuum cartridge one contact of which is fixedly secured to a metal rod protruding out from the cartridge. A flexible metallic electrical connector designed to electrically connect the rod to a busbar is provided, at one of its ends, with a bored hole in which one end of the rod is inserted. The joint between the flexible electrical connector and the rod is achieved by means of a braze implementing a metallic filler compound having a low melting temperature, so as not to damage the cartridge when the brazing operation is performed.

Abstract: A breaking module for an electrical switchgear apparatus comprises a vacuum cartridge comprising a body and a support frame of the cartridge. The cartridge is provided with a metal rod movable in translation and driving a movable contact. A collar both performs radial positioning of the body of the cartridge with respect to the frame and constitutes a guide sheath of the rod. For fitting, the collar can be opened so as to insert the rod radially therein. Once the body of the cartridge has been encircled, the collar is inserted radially in guide grooves of the frame.

Abstract: An electromechanical contactor that houses an electromagnet and a mobile contact carrier within one body. The electromagnet 20 is situated at the rear of the body 10 and a command wiring plane PB is situated at the front of the power wiring plane PA. The command terminals B and the control terminals C are arranged in a forward command/control terminal block 60. The coil terminals 26 are connected to the command terminals B by transverse conductors 27 housed in grooves made between an internal surface of the body and an external surface of an arch-shaped casing.

Abstract: The device comprises modelling means representative of an inverse model of the current transformer. These modelling means receive on input the instantaneous values of the secondary current measured in a first secondary winding of the current transformer and, by means of an integrator, the integral of the secondary voltage measured at the terminals of a secondary winding of the current transformer. The modelling means supply on output the instantaneous values of the associated primary current, corrected in case of saturation of the transformer. The secondary voltage can be supplied by the first secondary winding or by an additional second secondary winding, arranged around the first one.

Abstract: DC electromagnet comprising a magnetic circuit equipped with a yoke and a magnetic core fixed at its ends with vanes and capable of axial displacement. The magnetic core 21 is smooth and the vanes 22,23 are shrink fitted and fixed to the ends of the smooth core. One of the vanes 22 is fixed to the core in a reference position and is then put into contact with the associated flange 25 of yoke 14, and the other vane 23 is shrink fitted and pushed into an adjustable position determined by bringing the yoke 14 into contact with the other flange 26.

Abstract: Method for configuring the operating mode of an optical detector, by recognition, following an emission in a first operating mode M1, by means of the receiving system. The latter then confirms the detector in the first operating mode or switches it over into a second operating mode M2 according to whether there is recognition of the first mode. Automatic validation or validation carried out by the operator confirms the recognized operating mode.

Abstract: Optical detector capable of operating in proximity mode or in proximity with background elimination mode.

Abstract: The trip device with phase reconstitution comprises a processing unit comprising means for phase reconstitution receiving signals representive of the current signals supplied by sensors. The means for phase reconstitution comprise means for determining signals representative of the amplitudes of the current signals supplied by the two sensors, means for determining a signal representative of a phase shift between signals representative of the signals supplied by the two sensors and means for determining a signal representative of a phase current reconstituted according to the signals representative of the amplitudes and to the signal representative of a phase shift of the signals supplied by the two sensors. The circuit breaker comprises such a trip device.

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 component of a generally cylindrical luminous signaling column housing plural conductors that are substantially parallel to the axis of the cylinder and a printed circuit bearing plural LED luminous sources. The printed circuit is oriented such that its main plane is parallel to the axis of the component and bears plural LEDs on each surface. The cylindrical luminous signaling column includes a cylindrical inner surface provided with light-diffusing reliefs.

Abstract: The invention relates to a signaling device (1), in particular for industrial purposes, composed of several, at least two optical and/or acoustic signal transmitters, that are arranged essentially linearly next to each other and/or one above the other and connected to a power source via power lines, wherein the signal transmitters respectively have a case (3) in which power consumers (4) for generating an optical and/or acoustic signal are arranged, wherein adjacently arranged cases (3) are interconnected via a coupling member (27), and wherein the power consumers (4) can be connected to each other and/or to the power lines.

Abstract: A magnetic trip with a fixed magnetic circuit polarized by a permanent magnet.

Abstract: A ball actuator 10 comprises a case 12 supporting a striker 14 with an energy storage spring 16, a control rod 18 movable in translation in a direction parallel to a geometric axis 19, detent balls 20 and control balls 22. When the rod is moved in translation by an electromagnetic relay 100, the control balls 22 escape and enable the detent balls 20 to be freed so that the striker 14 is released. Each control ball 22 is in contact with two detent balls 20 and with the rod 18 so that the forces applied to the rod 18 by the control balls 20 are much lower than the forces exerted by the striker 14 on the detent balls 22. A high-efficiency actuator is thus achieved requiring a low operating energy and with small overall dimensions.

Abstract: The present invention relates to a self-adaptable proximity detector delivering a binary output signal (23) for the presence or absence of a target (19). The detector (10) includes a processing unit (15) and operates according to a short learning mode (AC) for an adjustment relative to its environment, according to a long learning mode (AL) for an adjustment relative to its environment and to a target (19), and according to a working mode corresponding to normal operation.

Abstract: A pole of a low-voltage limiting electrical power circuit breaker comprises a stationary contact defining a contact area, at least one movable contact finger and an arc extinguishing chamber. The finger is pivotally mounted on a movable support, itself linked to an opening mechanism. A spring biases the finger to a contact position. The lateral branches of a U-shaped magnetic circuit bound the contacts on each side, with interposed insulating side walls which form a passage between the contact area and the arc extinguishing chamber. This passage forms a constriction at the inlet of the chamber. The pole comprises in addition a receiving surface of an electric arc root, situated between the contact area and the constriction and electrically connected to the contact area and which is extended towards the inside of the chamber by a narrower part.