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: An electrical switch device with separable contacts is provided with a shunt conductor adapted to receive one end of the arc that is struck when the contacts separate after it has jumped a dielectric gap. The shunt conductor determines an interim arc current path in which is a current limiter device.

Abstract: An electromechanical switch of the contactor or circuit-breaker type with adjacent contacts, which are provided on respective mobile and fixed contact parts. This arrangement defines a narrow ionization slot which is maintained at the start of contact opening in order to cause a secondary arc to fire substantially perpendicular to the contact opening direction constituting a shunting arc to eliminate the time duration of the contacts and switch legs.

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 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 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 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: A movable contact bridge (12) is associated with contact carrier (7) by means of a stirrup (28), a pressure spring (25) and a resilient blade (45). The stirrup has two hooks (35, 36) which hold the blade in place and facilitate removal and positioning thereof because of the gap (60) separating these hooks. This contact bridge is advantageously used in contactors of minimum rated power greater than 100 amps.

Abstract: A multipolar switch has elements which can be readily assembled and combined for obtaining closing conracts or opening contacts. The body of the apparatus comprises a mounting base and an upper portion, the mounting base receiving an operating member which is movable in translation, the upper portion receiving a cover to close laterally some housings for terminals, some passageways for the retention of contacts, and some breaking chambers.

Abstract: A contactor has a body constituted by a base common to two parallel walls each having on its internal face a rib to guide fixed elements of a removable electro-magnet having means to cooperate with the ribs. The fixed elements form a slide having resilient locking means cooperating with stop means on an adjacent wall such that, in a first position, the core is disposed opposite the armature, the core being assembled to the body by first support members, and the winding being secured to the body by its own independent support members. In a second position, the core remains engaged with the body and extends from the body so that the winding support means are freed from the rib, and the winding can be separated from the core.

Abstract: An arc blowing element comprises two parallel arms and a stem disposed in the neighborhood of a support for a fixed contact, and a deflector coupled to an extremity of that arm which is remote from the contact and to which it is perpendicular, in order to extend up to the arc extinction chamber.

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.

Abstract: The present invention relates to a guidance system for the movable element of a contactor.The shaped sections constituting the walls have channels formed during the extrusion thereof wherein are located pivoting and elastic restoring members which guide the contact unit.