Abstract: The device includes two breaking areas formed at each side of a contact bridge carrying main contacts that can be separated from fixed contacts located in the breaking areas and fixed to main conductors. The main conductors each have shaped extensions in the break areas that are configured to cooperate with shaped extensions associated with arc collection parts positioned nearby. The shaping of the extensions and the spacing therebetween encourage a particular direction of arc migration relative to arcs created when the moveable contacts carried by the contact bridge are separated from the fixed contacts. Further, arc migration control is provided in the form of magnetic fields provided in each breaking area. Each arc collection part is connected through a shunt conductor and a single direction of current flow establishing component to make a direct electrical connection to the main conductor associated with the other area.

Abstract: Contactor-circuit breaker housing firstly power poles and an electromagnet serving to activate the moving contacts in contactor mode and including a fixed magnetic circuit, a moving magnetic circuit and a coil whose electric supply is controlled by a switch, and secondly at least one current sensor serving to control a releasing electromagnet. The activating electromagnet and the releasing electromagnet are constituted by a single electromagnet whose moving magnetic circuit is a pivoting pallet linked mechanically to the contact-holders of the poles and having a weak moment of inertia. An electric unit is provided for the rapid reduction of the magnetic flux, triggered by an electronic control device associated with the current sensor.

Abstract: An electromagnetic switch device which features a mobile assembly having contacts cooperating with fixed contacts and displaced by a solenoid. The switch also features an analog sensor for measuring the position of the mobile assembly and electronics for processing the output signal of the position sensor to control the coil current.

Abstract: An electric circuit-breaker of the magnetic arc extinction type includes a fixed contact member comprising two electrically insulative parts. An auxiliary part of the fixed contact member is connected to an auxiliary terminal and includes an arc deflector branch so disposed that when the contacts open the current flows in opposite directions in this branch and in the mobile contact member.

Abstract: A reversing contactor apparatus in a single case is disclosed, comprising electro-mechanical locking means.These means which comprise a mobile mechanical locking piece, further having surfaces for actuating locking switches, are placed substantially in the plane of a median dividing wall, on each side of which each of the two contactors of the apparatus are disposed; these conductors connect these switches in series to each contactor coil and, respectively, to a connection terminal.

Abstract: A pole piece (14a) of the movable core (12) moves in an air gap (25a) between external (61) and internal (16) pole pieces. A pole flange (14b) of the same core (12) moves in an air gap (25b) between a portion (30b) of the external pole piece (61) and a magnetic lobe (36) which is in contact with this latter. A permanent return magnet (17) is disposed between the internal (16) and external (61) pole pieces. The magnet (17), the internal pole piece (16) andthe lobe (36) are maintained in a cage (60) of plastic material snap fastened by hooks (78, 80) on the external pole piece (61). Three cross pieces (75, 76, 77) connectingtwo longitudinal walls of the cage to each other, suitably separate the different magnetic components. The force of attraction of the magnet (17) prevents the pole pieces (16, 61) from leaving it.

Abstract: A variable composition switching device realizable by the assembling of modular elements and including at least one circuit breaker module i.e. switch module and at least one control and/or protection module. The circuit breaker module consists of a case with two opposing junction sides allowing for assembly by juxtaposition of several circuit breaker modules, one assembly side comprising a duct orifice of the thruster of the curcuit breaker device and two assembly areas of a control and/or protection module. The control modules include suitable means for activating the thruster.

Abstract: A symmetrical monostable polarized electromagnet is provided in which a fixed permanent magnetic structure and a mobile magnetizable structure passing through the coil are dimensioned so that the starting movement from the rest position of said mobile structure for given ampere turns may be produced with certainty through adjustment of air gaps, whereas return from the working position is provided by the presence of second air gaps and/or by the action of a variable slope recall spring.The invention reduces particularly the remanent holding effects appearing in the working position as well as the power required for supplying the coil for causing a change of state thereof when the coil is at rest.

Abstract: A polarized electromagnet with bi or monostable operation is provided in which two flux channelling pieces of rectangular shape are disposed one in the other and are magnetically associated by means of permanent magnets, whose axes, parallel to that of the coil, pass substantially through the carcase of said coil, inside which slides a core provided with two plates when the operation is to be bistable.

Abstract: A variable composition switching device which comprises one basic modular component incorporating at least one controllable switching device, one direct switching control modular component and/or one indirect switching control modular component. This indirect switching control component acts on the basic modular component through a potential energy accumulation tripping device.

Abstract: An improved supply circuit for electromagnets. The supply circuit comprises a bridge rectifier, an attracting winding positioned in the diagonal of the bridge rectifier, a holding winding placed on the magnetic circuit of the electromagnet, and an isolating contact which isolates the bridge at the end of the pulling-in course of the movable member of the magnetic circuit. The holding winding being connected in parallel across the system formed by the isolating contact and the bridge rectifier.