EP0542636A1 - Multipole circuit-breaker being composed of single-pole units - Google Patents

Multipole circuit-breaker being composed of single-pole units Download PDF

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Publication number
EP0542636A1
EP0542636A1 EP92420356A EP92420356A EP0542636A1 EP 0542636 A1 EP0542636 A1 EP 0542636A1 EP 92420356 A EP92420356 A EP 92420356A EP 92420356 A EP92420356 A EP 92420356A EP 0542636 A1 EP0542636 A1 EP 0542636A1
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EP
European Patent Office
Prior art keywords
circuit breaker
box
bar
breaker according
blocks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP92420356A
Other languages
German (de)
French (fr)
Other versions
EP0542636B1 (en
Inventor
Philippe Perrier
Jean-Pierre Nereau
Robert Morel
Jean-Pierre Nebon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schneider Electric SE
Original Assignee
Merlin Gerin SA
Schneider Electric SE
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Application filed by Merlin Gerin SA, Schneider Electric SE filed Critical Merlin Gerin SA
Publication of EP0542636A1 publication Critical patent/EP0542636A1/en
Application granted granted Critical
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2041—Rotating bridge
    • H01H1/2058—Rotating bridge being assembled in a cassette, which can be placed as a complete unit into a circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H01H73/045—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H01H2071/1036—Interconnected mechanisms having provisions for four or more poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes

Definitions

  • the invention relates to a low-voltage, multi-pole, double-jacker circuit breaker, each pole of which comprises, a single-pole breaking block having a parallelepiped box with two large side faces, made of molded plastic, and contacts associated with a breaking chamber housed in said block, several blocks being mounted side by side in a molded case to constitute the multipole circuit breaker.
  • a circuit breaker of the type mentioned, comprises for each pole an individual block constituted by a bulb, in this case by a molded plastic box containing the contacts and the breaking chambers.
  • the advantages of such modular systems are well known, in particular the reduction in manufacturing and assembly costs. They nevertheless impose constraints on the respective positioning of the different modules, in this case of connection between the moving parts of the different unipolar blocks.
  • a known circuit breaker comprises a rotary shaft which crosses all of the unipolar blocks to drive the movable contacts of these blocks in simultaneous rotation. The presence of this rotating shaft imposes constraints on positioning and architecture.
  • the object of the present invention is to produce a multipole circuit breaker, of the modular type, having a mechanical connection between the unipolar blocks compatible with the use of a contact bridge.
  • the circuit breaker according to the invention is characterized in that a movable contact is arranged in a rotary contact bridge which cooperates with two opposite fixed contacts, that the contact bridge is carried by a section of rotary bar, which extends transversely substantially in the center of said box while being inserted and guided laterally by the two large lateral faces of the box while being able to struggle in limited translation parallel to these large faces, that the sections of bars of the various juxtaposed blocks are mechanically secured by two parallel connecting bars which extend perpendicular to said large faces and pass through diametrically opposite orifices, made with little clearance, formed in successive bar sections, that the two connecting bars are coupled to a crank with two diametrically opposite arms, and that a control mechanism, fixed to the upper part of one of the blocks, comprises two metal flanges carrying the bearing of said crank and a lower connecting rod actuating said crank.
  • Each unipolar block constitutes a breaking assembly housed in an insulating envelope in the form of a box, and these blocks are grouped in a second envelope constituted by the casing of the multipolar circuit breaker.
  • the contact bridge of each unipolar block is mounted floating on a section of bar and the rigid mechanical connection between the various sections of bar, is carried out by the two bars which extend parallel to the bar, and are offset from the axis of rotation of the latter.
  • the bar section is positioned in the axial direction by the two large faces of the housing which frame it, but it is free to move in the other directions to compensate for manufacturing or positioning irregularities.
  • the two diametrically opposite connecting bars rigidly secure the successive sections of bar, while leaving free the central part of the section for the passage of the contact bridge.
  • the large faces of the box have openings in the form of an arc of a circle for the passage with link rods, the only other openings being those for the exhaust of the cut-off gases at the rear of the chambers.
  • the circuit breaker control mechanism is associated with one of the unipolar blocks, preferably with the central block, and it is arranged to be placed on the upper face of the box by registering in the width of the box.
  • Such a mechanism can, in this case, be used for the entire range of single-pole or multi-pole circuit breakers, which facilitates the manufacture of such a range of circuit breakers.
  • the mechanism is of the lever type, in particular pivoting, and with a toggle for controlling the rotation of a crank with two diametrically opposite arms.
  • One of said connecting bars is coupled to each arm of the crank to rotate the bar sections.
  • the mechanism comprises two lateral flanges, each of which carries a bearing of a crank and these lateral flanges serve as fastening parts to the associated unipolar block, for example using alignment rods, which connect the different unipolar blocks and the spacers.
  • the spacers between two adjacent blocks ensure modularity between circuit breakers of the same range, in this case between a single-pole circuit breaker and a multi-pole circuit breaker, as described in detail in the French patent application filed jointly, and entitled " Range of low voltage circuit breakers with molded case ".
  • the spacer plate has, opposite the curved openings of the large lateral faces of each box, two curved openings centered on the axis of the bar for the passage of the two connecting bars.
  • the section of bar of generally cylindrical shape made of an insulating material, comprises on the one hand a diametrical lumen traversed by the contact bridge, and on the other hand two orifices offset angularly and perpendicular to the lumen for the passage without clearance of the bars which are thus electrically isolated from the contact bridge.
  • the curved openings of the large lateral faces are crossed with the eu by the connecting bars which only partially close these openings.
  • the curved lights are capped by the bottom of the section of bar opposite the large face. improved by inserting between the bottom and the large face a flexible disc secured to the connecting bars which pass through it without play. During an internal overpressure the disc is pressed against the large lateral face by closing the curved openings.
  • the contact bridges of the various modular blocks extend in a plane substantially parallel to the bottom of the housing and each contact bridge, cooopere on the one hand, with a fixed contact located above this plane and on the other hand, on the opposite side with a fixed contact located below this plane.
  • Each fixed contact is connected to a connection pad, and the pad connected to the fixed contact arranged below the plane is close to the front face of the box, while the pad connected to the other fixed contact is in the vicinity from the bottom of the box.
  • This arrangement gives the unipolar block a certain symmetry and facilitates the connection of a trip unit which can either be integrated into the circuit breaker box or be attached to the small side face of the circuit breaker box.
  • the trigger block is common to the different unipolar blocks, but it is conceivable to produce modular systems each associated with one of the unipolar blocks.
  • the trigger block is arranged on the side of the pads on the front face of the unipolar blocks.
  • the modularity of the system facilitates the realization of a range of circuit breakers from a limited number of sub-assemblies.
  • the system is particularly simple and the double envelope, as well as the double cutoff, give it remarkable performance.
  • Figure 1 is a schematic exploded perspective view of a circuit breaker according to the invention.
  • FIG. 2 is a perspective view on an enlarged scale of a single-pole unit and of the associated control mechanism of the circuit breaker according to FIG. 1.
  • Figure 3 is a cross-sectional view of the unipolar block.
  • Figure 4 is an axial sectional view of the bar section, showing the sealing valves.
  • a multipolar circuit breaker with molded housing 10 comprises four unipolar blocks 11 of generally parallelepiped shape, and arranged side by side in the housing 10.
  • Each unipolar block comprises a box 12 of molded plastic material having a bottom 13, a front face 14, two large parallel side faces 15,16 and two small parallel faces 17,18.
  • a contact bridge 19 carried by a section of bar 20 extending perpendicularly to the large lateral faces 15, 16.
  • the movable contact bridge 19 cooperates, on one side with a fixed contact 22, and on the opposite side with a fixed contact 23 and on each pair of contacts 19, 22; 19,23 is associated with a breaking chamber 24 with deionization plates.
  • the movable contact bridge 19 is mounted floating on the bar section 20, by means of two opposite springs in the manner described in detail in French Patent No. 2,622,347.
  • the axis of rotation 21 of the contact bridge 19 is substantially in the center of the box 12, and in the closed position the contact bridge 19 extends in a median plane, substantially parallel to the bottom 13 of the box 12.
  • the fixed contact 22 is disposed above this median plane, and is connected to a contact pad 25, near the front face 14, of the box 12.
  • the other contact opposite 23 is arranged below this median plane, and is connected to a track 26 near the bottom 13 of the box 12.
  • the unipolar block 11 is an independent unit constituting one of the poles of the circuit breaker, and the association of several unipolar blocks allows the production of a multipole circuit breaker.
  • the unipolar blocks 11 are joined by their large lateral faces 15, 16, with the interposition of a spacer plate 27 defining an interval between the successive blocks.
  • the bar sections 20 of the different unipolar blocks 11 are mechanically connected by two connecting bars 28 which extend parallel to the axis of rotation 21, and which pass without clearance through the orifices 29 formed in the bar sections 20.
  • the bars connecting 28 are eccentric with respect to the axis of rotation 21, and the large lateral faces 15, 16, and the spacer plates 27, have elongated slots 30 of curved shape, allowing the passage with clearance of the connecting bars 28 with a possibility of travel suitable for the rotational movement of the bar sections 20.
  • the bar section 20 in the form of a cylindrical nut made of an insulating material, is framed laterally with little play by the two large faces 15, 16, but it is free to move slightly in the other directions to compensate for manufacturing irregularities or positioning.
  • the contact bridge 19, in the form of a bar, passes through a lumen 33 formed according to a diameter in the bar section 20 and this lumen 33 is angularly offset relative to the orifices 29 for passage of the connecting bars 28 perpendicular to the contact bridge 19 .
  • a mechanism 32 On the front face 14 of one of the central unipolar blocks 11, is fixed a mechanism 32, of a standard type, having a control lever 31 and a toggle.
  • the mechanism 32 comprises two external metal flanges 34, extending in parallel while being spaced apart by a distance corresponding substantially to the width of the unipolar block 11.
  • These flanges 34 are fixed, at their lower part 35, to the unipolar block 11 by alignment rods 37 which extend perpendicular to the large faces 15,16 and pass through aligned orifices 38,39 respectively flanges 34 and boxes 12.
  • Each flange 34 carries a bearing 40 of a crank 42 with axis 41 controlled by the mechanism 32 to perform a limited rotation alternately respectively for the opening and closing of the circuit breaker.
  • Each crank 42 has two opposite arms 43, each crossed without play by one of the connecting bars 28. A rotation of the cranks 42 is transmitted by means of the two bars 28, which struggle in the curved slots 30, to the different bar sections 20 for opening and closing the contacts
  • the mechanism 32 is common to all of the unipolar blocks 11, and this mechanism is housed in the housing 10, only the handle 31 being accessible from the outside for controlling the circuit breaker.
  • the bars 28 constitute a rigid connection between the sections 20 which form a bar articulated by the bearings 40 on the two flanges 34.
  • the imperfections in positioning or manufacturing do not affect the movement of the contact bridge 19 guided by the bar section 20, the latter being mounted with play in the box 12. From standard unipolar blocks 11, it is possible to manufacture a whole range of circuit breakers with molded casing, the double jacket constituted by the box 12 and the casing 10, as well as the floating mounting of the contact bridge 19 guaranteeing remarkable performances of the circuit breaker.
  • the circuit breaker comprises a trip block (not shown) which is either integrated into the housing 10, or attached to the small external face of the latter.
  • the trigger of the electronic or electromechanical type can be common to all the unipolar blocks 11, or possibly be of the modular type, associated with each pole unit 11.
  • At the rear of the breaking chambers 24 are provided exhaust openings 44 cut-off gases outside the box 12, the only other openings of the latter being the curved openings 30 for passage of the connecting bars 28.
  • the quasi-tightness of the box 12, in particular in its central part promotes cutting, the arc being blown towards the cutting chambers 34. In referring to FIG. 4, it can be seen that this sealing is improved by the small clearance between the front part 45 of the bar section 20 and the internal surface of the large face 15, 16.
  • a flexible disc 46 is interposed between the bar section 20 and the large face 15, 16 facing the curved openings 30.
  • the disc 46 operates as a valve coming to be pressed against the faces 15, 16 during an internal overpressure to close off the openings 30.
  • the connecting bars 28 pass through holes made in the disc 46 which moves with these bars with little play.
  • Other sealing means for example with a drawer, can be envisaged.

Abstract

A low voltage multipole circuit breaker having a double housing, each pole including a single-pole breaking unit having a parallelepipedic plastic box having two extended side faces. Contacts are further provided and are associated with an extinguishing chamber housed within the single-pole breaking unit. Several units are mounted side by side in the parallelepipedic box to form a multipole circuit breaker.

Description

L'invention est relative à un disjoncteur multipolaire basse tension à double enveloppe, dont chaque pôle comprend, un bloc unipolaire de coupure ayant une boîte parallélélipèdique à deux grandes faces latérales, en matière plastique moulée, et des contacts associés à une chambre de coupure logés dans ledit bloc, plusieurs blocs étant montés côte à côte dans un boîtier moulé pour constituer le disjoncteur multipolaire.The invention relates to a low-voltage, multi-pole, double-jacker circuit breaker, each pole of which comprises, a single-pole breaking block having a parallelepiped box with two large side faces, made of molded plastic, and contacts associated with a breaking chamber housed in said block, several blocks being mounted side by side in a molded case to constitute the multipole circuit breaker.

Un disjoncteur, du genre mentionné, comporte pour chaque pôle un bloc individuel constitué par une ampoule, en l'occurrence par une boîte en matière plastique moulée contenant les contacts et les chambres de coupure. Les avantages de tels systèmes modulaires sont bien connus, en particulier les réductions des coûts de fabrication et de montage. Ils imposent néanmoins des contraintes de positionnement respectif des différents modules, en l'occurrence de liaison entre les parties mobiles des différents blocs unipolaires. Un disjoncteur connu comporte un arbre rotatif qui traverse l'ensemble des blocs unipolaires pour entraîner en rotation simultanée, les contacts mobiles de ces blocs. La présence de cet arbre rotatif impose des contraintes de positionnement et d'architecture.A circuit breaker, of the type mentioned, comprises for each pole an individual block constituted by a bulb, in this case by a molded plastic box containing the contacts and the breaking chambers. The advantages of such modular systems are well known, in particular the reduction in manufacturing and assembly costs. They nevertheless impose constraints on the respective positioning of the different modules, in this case of connection between the moving parts of the different unipolar blocks. A known circuit breaker comprises a rotary shaft which crosses all of the unipolar blocks to drive the movable contacts of these blocks in simultaneous rotation. The presence of this rotating shaft imposes constraints on positioning and architecture.

La présente invention a pour but de réaliser un disjoncteur multipolaire, du type modulaire, ayant une liaison mécanique entre les blocs unipolaires compatible avec l'emploi d'un pont de contacts.The object of the present invention is to produce a multipole circuit breaker, of the modular type, having a mechanical connection between the unipolar blocks compatible with the use of a contact bridge.

Le disjoncteur selon l'invention est caractérisé en ce qu'un contact mobile est agencé en pont de contacts rotatif qui coopère avec deux contacts fixes opposés, que le pont de contact est porté par un tronçon de barreau rotatif, qui s'étend transversalement sensiblement au centre de ladite boîte en étant intercalé et guidé latéralement par les deux grandes faces latérales de la boîte tout en pouvant se débattre en translation limitée parallèlement à ces grandes faces, que les tronçons de barreau des différents blocs juxtaposés sont mécaniquement solidarisés par deux barres de liaison parallèles qui s'étendent perpendiculairement auxdites grandes faces et traversent à faible jeu des orifices diamétralement opposés,ménagés dans les tronçons de barreau successifs, que les deux barres de liaison sont accouplées à une manivelle à deux bras diamétralement opposés, et qu'un mécanisme de commande, fixé à la partie supérieure de l'un des blocs, comporte deux flasques métalliques portant le palier de ladite manivelle et une bielle inférieure actionnant ladite manivelle.The circuit breaker according to the invention is characterized in that a movable contact is arranged in a rotary contact bridge which cooperates with two opposite fixed contacts, that the contact bridge is carried by a section of rotary bar, which extends transversely substantially in the center of said box while being inserted and guided laterally by the two large lateral faces of the box while being able to struggle in limited translation parallel to these large faces, that the sections of bars of the various juxtaposed blocks are mechanically secured by two parallel connecting bars which extend perpendicular to said large faces and pass through diametrically opposite orifices, made with little clearance, formed in successive bar sections, that the two connecting bars are coupled to a crank with two diametrically opposite arms, and that a control mechanism, fixed to the upper part of one of the blocks, comprises two metal flanges carrying the bearing of said crank and a lower connecting rod actuating said crank.

Chaque bloc unipolaire constitue un ensemble de coupure logé dans une enveloppe isolante en forme de boîte, et ces blocs sont groupés dans une deuxième enveloppe constituée par le boîtier du disjoncteur multipolaire. Le pont de contact de chaque bloc unipolaire est monté flottant sur un tronçon de barreau et la liaison mécanique rigide entre les différents tronçons de barreau, est réalisée par les deux barres qui s'étendent parallèlement au barreau, et sont excentrées par rapport à l'axe de rotation de ce dernier.Each unipolar block constitutes a breaking assembly housed in an insulating envelope in the form of a box, and these blocks are grouped in a second envelope constituted by the casing of the multipolar circuit breaker. The contact bridge of each unipolar block is mounted floating on a section of bar and the rigid mechanical connection between the various sections of bar, is carried out by the two bars which extend parallel to the bar, and are offset from the axis of rotation of the latter.

Le tronçon de barreau est positionné dans la direction axiale par les deux grandes faces du boîtier qui l'encadrent, mais il est libre de bouger dans les autres directions pour compenser les irrégularités de fabrication ou de positionnement. Les deux barres de liaison, diamétralement opposées, solidarisent rigidement les tronçons successifs de barreau, tout en laissant libre la partie centrale du tronçon pour le passage du pont de contacts. Les grandes faces de la boîte ont des ouvertures en forme d'arc de cercle pour le passage avec'eu de barres de liaison, les seules autres ouvertures étant celles d'échappement des gaz de coupure à l'arrière des chambres.The bar section is positioned in the axial direction by the two large faces of the housing which frame it, but it is free to move in the other directions to compensate for manufacturing or positioning irregularities. The two diametrically opposite connecting bars rigidly secure the successive sections of bar, while leaving free the central part of the section for the passage of the contact bridge. The large faces of the box have openings in the form of an arc of a circle for the passage with link rods, the only other openings being those for the exhaust of the cut-off gases at the rear of the chambers.

Selon un développement de l'invention, le mécanisme de commande du disjoncteur est associé à l'un des blocs unipolaires, de préférence au bloc central, et il est agencé pour être disposé sur la face supérieure de la boîte en s'inscrivant dans le gabarit en largeur de la boîte. Un tel mécanisme peut, dans ce cas, être utilisé pour l'ensemble de la gamme de disjoncteurs unipolaires ou multipolaires, ce qui facilite la fabrication d'une telle gamme de disjoncteurs. Le mécanisme est du type à manette, notamment pivotante, et à genouillère de commande en rotation d'une manivelle à deux bras diamétralement opposés. A chaque bras de la manivelle est accouplée l'une desdites barres de liaison pour entraîner en rotation les tronçons de barreau.According to a development of the invention, the circuit breaker control mechanism is associated with one of the unipolar blocks, preferably with the central block, and it is arranged to be placed on the upper face of the box by registering in the width of the box. Such a mechanism can, in this case, be used for the entire range of single-pole or multi-pole circuit breakers, which facilitates the manufacture of such a range of circuit breakers. The mechanism is of the lever type, in particular pivoting, and with a toggle for controlling the rotation of a crank with two diametrically opposite arms. One of said connecting bars is coupled to each arm of the crank to rotate the bar sections.

Le mécanisme comporte deux flasques latéraux dont chacun porte un palier d'une manivelle et ces flasques latéraux servent de pièces de fixation au bloc unipolaire associé, par exemple à l'aide de tiges d'alignement, qui relient les différents blocs unipolaires et les entretoises.Les entretoises entre deux blocs adjacents assurent la modularité entre les disjoncteurs d'une même gamme, en l'occurrence entre un disjoncteur unipolaire et un disjoncteur multipolaire, de la manière décrite en détail dans la demande de brevet français déposée conjointement, et intitulée"Gamme de disjoncteurs basse tension à boîtier moulé". La plaque entretoise présente en regard des ouvertures incurvées des grandes faces latérales de chaque boîte, deux lumières incurvées centrées sur l'axe du barreau pour le passage des deux barres de liaison.The mechanism comprises two lateral flanges, each of which carries a bearing of a crank and these lateral flanges serve as fastening parts to the associated unipolar block, for example using alignment rods, which connect the different unipolar blocks and the spacers. .The spacers between two adjacent blocks ensure modularity between circuit breakers of the same range, in this case between a single-pole circuit breaker and a multi-pole circuit breaker, as described in detail in the French patent application filed jointly, and entitled " Range of low voltage circuit breakers with molded case ". The spacer plate has, opposite the curved openings of the large lateral faces of each box, two curved openings centered on the axis of the bar for the passage of the two connecting bars.

On voit que les tronçons de barreau sont positionnés par rapport au mécanisme par les barres de liaison solidaires de la manivelle, tandis que les boîtes sont positionnées par les tiges d'alignement. Les inperfections de fabrication sont compensées par le faible jeu entre le tronçon de barreau et la boîte. Le tronçon de barreau,de forme générale cylindrique en un matériau isolant, comporte d'une part une lumière diamétrale traversée par le pont de contacts, et d'autre part deux orifices décalés angulairement et perpendiculaires à la lumière pour le passage sans jeu des barres de liaison qui sont ainsi isolées électriquement du pont de contacts. Les lumières incurvées des grandes faces latérales sont traversées avec'eu par les barres de liaison qui n'obturent que partiellement ces lumières. Pour disposer d'une partie centrale de la boîte quasi étanche et favoriser ainsi le déplacement de l'arc vers les chambres de coupure, les lumières incurvées sont coiffées par le fond du tronçon de barreau en regard de la grande face.L'étanchéité peut être améliorée en intercalant entre le fond et la grande face un disque souple solidaire des barres de liaison qui le traversent sans jeu. Lors d'une surpression interne le disque est plaqué contre la grande face latérale en obturant les lumières incurvées.We see that the bar sections are positioned relative to the mechanism by the connecting bars integral with the crank, while the boxes are positioned by the alignment rods. Manufacturing imperfections are compensated for by the small clearance between the bar section and the box. The section of bar, of generally cylindrical shape made of an insulating material, comprises on the one hand a diametrical lumen traversed by the contact bridge, and on the other hand two orifices offset angularly and perpendicular to the lumen for the passage without clearance of the bars which are thus electrically isolated from the contact bridge. The curved openings of the large lateral faces are crossed with the eu by the connecting bars which only partially close these openings. For have a central part of the almost watertight box and thus favor the displacement of the arc towards the breaking chambers, the curved lights are capped by the bottom of the section of bar opposite the large face. improved by inserting between the bottom and the large face a flexible disc secured to the connecting bars which pass through it without play. During an internal overpressure the disc is pressed against the large lateral face by closing the curved openings.

Dans la position fermée du disjoncteur,les ponts de contacts des différents blocs modulaires s'étendent dans un plan sensiblement parallèle au fond du boîtier et chaque pont de contacts, cooopère d'une part, avec un contact fixe situé au dessus de ce plan et d'autre part, du côté opposé avec un contact fixe situé en dessous de ce plan. Chaque contact fixe est relié à une plage de connexion, et la plage connectée au contact fixe disposé au dessous du plan,est à proximité de la face avant de la boîte, tandis que la plage connectée à l'autre contact fixe, est au voisinage du fond de la boîte. Cette disposition confère une certaine symétrie au bloc unipolaire et facilite la connexion d'un bloc déclencheur qui peut être, soit intégré au boîtier du disjoncteur, soit être accolé à la petite face latérale du boîtier du disjoncteur. Le bloc déclencheur est commun aux différents blocs unipolaires,mais il est concevable de réaliser des systèmes modulaires chacun associé à l'un des blocs unipolaires. Le bloc déclencheur est disposé du côté des plages sur la face avant des blocs unipolaires.In the closed position of the circuit breaker, the contact bridges of the various modular blocks extend in a plane substantially parallel to the bottom of the housing and each contact bridge, cooopere on the one hand, with a fixed contact located above this plane and on the other hand, on the opposite side with a fixed contact located below this plane. Each fixed contact is connected to a connection pad, and the pad connected to the fixed contact arranged below the plane is close to the front face of the box, while the pad connected to the other fixed contact is in the vicinity from the bottom of the box. This arrangement gives the unipolar block a certain symmetry and facilitates the connection of a trip unit which can either be integrated into the circuit breaker box or be attached to the small side face of the circuit breaker box. The trigger block is common to the different unipolar blocks, but it is conceivable to produce modular systems each associated with one of the unipolar blocks. The trigger block is arranged on the side of the pads on the front face of the unipolar blocks.

La modularité du système facilite la réalisation d'une gamme de disjoncteurs à partir d'un nombre limité de sous-ensembles. Le système est particulièrement simple et la double enveloppe, ainsi que la double coupure lui confèrent des performances remarquables.The modularity of the system facilitates the realization of a range of circuit breakers from a limited number of sub-assemblies. The system is particularly simple and the double envelope, as well as the double cutoff, give it remarkable performance.

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre, d'un mode de mise en oeuvre de l'invention, donné à titre d'exemple non limitatif et représenté aux dessins annexés dans lesquels:Other advantages and characteristics will emerge more clearly from the description which follows, of a mode of implementation. work of the invention, given by way of nonlimiting example and shown in the accompanying drawings in which:

La figure 1 est une vue schématique en perspective éclatée d'un disjoncteur selon l'invention.Figure 1 is a schematic exploded perspective view of a circuit breaker according to the invention.

La figure 2 est une vue en perspective à échelle agrandie d'un bloc unipolaire et du mécanisme de commande associé du disjoncteur selon la figure 1.FIG. 2 is a perspective view on an enlarged scale of a single-pole unit and of the associated control mechanism of the circuit breaker according to FIG. 1.

La figure 3 est une vue en coupe transversale du bloc unipolaire.Figure 3 is a cross-sectional view of the unipolar block.

La figure 4 est une vue en coupe axiale du tronçon de barreau, montrant les clapets d'étanchéité.Figure 4 is an axial sectional view of the bar section, showing the sealing valves.

Sur les figures, un disjoncteur multipolaire à boîtier moulé 10 comporte quatre blocs unipolaires 11 de forme générale parallélélipèdique, et disposés côte à côte dans le boîtier 10. Chaque bloc unipolaire comporte une boîte 12 en matière plastique moulée ayant un fond 13, une face avant 14, deux grandes faces latérales parallèles 15,16 et deux petites faces parallèles 17,18. A l'intérieur de la boîte 12, est logé un pont de contacts 19, porté par un tronçon de barreau 20 s'étendant perpendiculairement aux grandes faces latérales 15,16. Le pont de contacts mobile 19 coopère, d'un côté avec un contact fixe 22, et du côté oppposé avec un contact fixe 23 et à chaque paire de contacts 19,22; 19,23 est associée une chambre de coupure 24 à tôles de désionisation. Le pont de contacts mobile 19 est monté flottant sur le tronçon de barreau 20, par l'intermédiaire de deux ressorts opposés de la manière décrite en détail dans le brevet français n°2.622.347. L'axe de rotation 21 du pont de contacts 19 est sensiblement au centre de la boîte 12, et en position de fermeture le pont de contacts 19, s'étend dans un plan médian, sensiblement parallèle au fond 13 de la boîte 12. Le contact fixe 22 est disposé au dessus de ce plan médian, et est raccordé à une plage de contact 25, à proximité de la face avant 14, de la boîte 12. D'une manière symétrique, l'autre contact opposé 23 est disposé en dessous de ce plan médian, et est relié à une plage 26 voisine du fond 13 de la boîte 12.In the figures, a multipolar circuit breaker with molded housing 10 comprises four unipolar blocks 11 of generally parallelepiped shape, and arranged side by side in the housing 10. Each unipolar block comprises a box 12 of molded plastic material having a bottom 13, a front face 14, two large parallel side faces 15,16 and two small parallel faces 17,18. Inside the box 12, is housed a contact bridge 19, carried by a section of bar 20 extending perpendicularly to the large lateral faces 15, 16. The movable contact bridge 19 cooperates, on one side with a fixed contact 22, and on the opposite side with a fixed contact 23 and on each pair of contacts 19, 22; 19,23 is associated with a breaking chamber 24 with deionization plates. The movable contact bridge 19 is mounted floating on the bar section 20, by means of two opposite springs in the manner described in detail in French Patent No. 2,622,347. The axis of rotation 21 of the contact bridge 19 is substantially in the center of the box 12, and in the closed position the contact bridge 19 extends in a median plane, substantially parallel to the bottom 13 of the box 12. The fixed contact 22 is disposed above this median plane, and is connected to a contact pad 25, near the front face 14, of the box 12. In a symmetrical manner, the other contact opposite 23 is arranged below this median plane, and is connected to a track 26 near the bottom 13 of the box 12.

Le bloc unipolaire 11 est une unité indépendante constituant, l'un des pôles du disjoncteur, et l'association de plusieurs blocs unipolaires permet la réalisation d'un disjoncteur multipolaire. Les blocs unipolaires 11 sont accolés par leurs grandes faces latérales 15,16, avec interposition d'une plaque entretoise 27 définissant un intervalle entre les blocs successifs. Les tronçons de barreau 20 des différents blocs unipolaires 11 sont reliés mécaniquement par deux barres de liaison 28 qui s'étendent parallèlement à l'axe de rotation 21, et qui traversent sans jeu des orifices 29 ménagés dans les tronçons de barreau 20. Les barres de liaison 28 sont excentrées par rapport à l'axe de rotation 21, et les grandes faces latérales 15,16, et les plaques entretoises 27, présentent des lumières allongées 30 de forme incurvée, permettant le passage avec jeu des barres de liaison 28 avec une possibilité de débattement approprié au mouvement de rotation des tronçons de barreau 20.The unipolar block 11 is an independent unit constituting one of the poles of the circuit breaker, and the association of several unipolar blocks allows the production of a multipole circuit breaker. The unipolar blocks 11 are joined by their large lateral faces 15, 16, with the interposition of a spacer plate 27 defining an interval between the successive blocks. The bar sections 20 of the different unipolar blocks 11 are mechanically connected by two connecting bars 28 which extend parallel to the axis of rotation 21, and which pass without clearance through the orifices 29 formed in the bar sections 20. The bars connecting 28 are eccentric with respect to the axis of rotation 21, and the large lateral faces 15, 16, and the spacer plates 27, have elongated slots 30 of curved shape, allowing the passage with clearance of the connecting bars 28 with a possibility of travel suitable for the rotational movement of the bar sections 20.

Le tronçon de barreau 20, en forme de noix cylindrique en un matériau isolant, est encadré latéralement à faible jeu par les deux grandes faces 15,16, mais il est libre de se déplacer légèrement dans les autres directions pour compenser les irrégularités de fabrication ou de positionnement. Le pont de contacts 19, en forme de barre, traverse une lumière 33 ménagée suivant un diamètre dans le tronçon de barreau 20 et cette lumière 33 est décalée angulairement par rapport aux orifices 29 de passage des barres de liaison 28 perpendiculaires au pont de contacts 19.The bar section 20, in the form of a cylindrical nut made of an insulating material, is framed laterally with little play by the two large faces 15, 16, but it is free to move slightly in the other directions to compensate for manufacturing irregularities or positioning. The contact bridge 19, in the form of a bar, passes through a lumen 33 formed according to a diameter in the bar section 20 and this lumen 33 is angularly offset relative to the orifices 29 for passage of the connecting bars 28 perpendicular to the contact bridge 19 .

Sur la face avant 14 de l'un des blocs unipolaires centraux 11, est fixé un mécanisme 32, d'un type standard, ayant une manette de commande 31 et une genouillère. Le mécanisme 32 comporte deux flasques métalliques externes 34, s'étendant parallèlement en étant écartés d'une distance correspondant sensiblement à la largeur du bloc unipolaire 11. Ces flasques 34 sont fixés, à leur partie inférieure 35, sur le bloc unipolaire 11 par des tiges d'alignement 37 qui s'étendent perpendiculairement aux grandes faces 15,16 et traversent des orifices alignés 38,39 respectivement des flasques 34 et des boîtes 12. Chaque flasque 34 porte un palier 40 d'une manivelle 42 à axe 41 commandée par le mécanisme 32 pour effectuer une rotation limitée alternée respectivement pour l'ouverture et la fermeture du disjoncteur. Chaque manivelle 42 comporte deux bras opposés 43, chacun traversé sans jeu par l'une des barres de liaison 28. Une rotation des manivelles 42 est transmise par l'intermédiaire des deux barres 28, qui se débattent dans les lumières incurvées 30, aux différents tronçons de barreau 20 pour ouvrir et fermer les contacts 19,22,23.On the front face 14 of one of the central unipolar blocks 11, is fixed a mechanism 32, of a standard type, having a control lever 31 and a toggle. The mechanism 32 comprises two external metal flanges 34, extending in parallel while being spaced apart by a distance corresponding substantially to the width of the unipolar block 11. These flanges 34 are fixed, at their lower part 35, to the unipolar block 11 by alignment rods 37 which extend perpendicular to the large faces 15,16 and pass through aligned orifices 38,39 respectively flanges 34 and boxes 12. Each flange 34 carries a bearing 40 of a crank 42 with axis 41 controlled by the mechanism 32 to perform a limited rotation alternately respectively for the opening and closing of the circuit breaker. Each crank 42 has two opposite arms 43, each crossed without play by one of the connecting bars 28. A rotation of the cranks 42 is transmitted by means of the two bars 28, which struggle in the curved slots 30, to the different bar sections 20 for opening and closing the contacts 19,22,23.

Le mécanisme 32 est commun à l'ensemble des blocs unipolaires 11, et ce mécanisme est logé dans le boîtier 10, seule la manette 31 étant accessible de l'extérieur pour la commande du disjoncteur. Les barres 28 constituent une liaison rigide entre les tronçons 20 qui forment un barreau articulé par les paliers 40 sur les deux flasques 34. Les imperfections de positionnement ou de fabrication n'affectent pas le mouvement du pont de contacts 19 guidé par le tronçon de barreau 20, ce dernier étant monté avec jeu dans la boîte 12. A partir de blocs unipolaires standards 11, il est possible de fabriquer toute une gamme de disjoncteurs à boîtier moulé, la double enveloppe constituée par la boîte 12 et le boîtier 10, ainsi que le montage flottant du pont de contacts 19 garantissant des performances remarquables du disjoncteur.The mechanism 32 is common to all of the unipolar blocks 11, and this mechanism is housed in the housing 10, only the handle 31 being accessible from the outside for controlling the circuit breaker. The bars 28 constitute a rigid connection between the sections 20 which form a bar articulated by the bearings 40 on the two flanges 34. The imperfections in positioning or manufacturing do not affect the movement of the contact bridge 19 guided by the bar section 20, the latter being mounted with play in the box 12. From standard unipolar blocks 11, it is possible to manufacture a whole range of circuit breakers with molded casing, the double jacket constituted by the box 12 and the casing 10, as well as the floating mounting of the contact bridge 19 guaranteeing remarkable performances of the circuit breaker.

Le disjoncteur comporte un bloc de déclenchement (non représenté) qui est, soit intégré au boîtier 10, soit accolé à la petite face externe de ce dernier. Le déclencheur du type électronique ou électromécanique peut être commun à l'ensemble des blocs unipolaires 11, ou éventuellement être du type modulaire, associé à chaque unité polaire 11. A l'arrière des chambres de coupure 24 sont prévues des ouvertures 44 d'échappement des gaz de coupure vers l'extérieur de la boîte 12, les seules autres ouvertures de cette dernière étant les lumières incurvées 30 de passage des barres de liaison 28. La quasi étanchéité de la boîte 12, notamment dans sa partie centrale favorise la coupure, l'arc étant soufflé vers les chambres de coupures 34. En se référant à la figure 4, on voit que cette étanchéité est améliorée par le faible jeu entre la partie frontale 45 du tronçon de barreau 20 et la surface interne de la grande face 15,16. Selon un développement de l'invention, un disque souple 46 est intercalé entre le tronçon de barreau 20 et la grande face 15,16 en regard des lumières incurvées 30. Le disque 46 fonctionne en clapet venant se plaquer sur les faces 15,16 lors d'une surpression interne pour obturer les lumières 30. Les barres de liaison 28 traversent à faible jeu des trous ménagés dans le disque 46 qui se déplace avec ces barres. D'autres moyens d'obturation, par exemple à tiroir sont envisageables.The circuit breaker comprises a trip block (not shown) which is either integrated into the housing 10, or attached to the small external face of the latter. The trigger of the electronic or electromechanical type can be common to all the unipolar blocks 11, or possibly be of the modular type, associated with each pole unit 11. At the rear of the breaking chambers 24 are provided exhaust openings 44 cut-off gases outside the box 12, the only other openings of the latter being the curved openings 30 for passage of the connecting bars 28. The quasi-tightness of the box 12, in particular in its central part promotes cutting, the arc being blown towards the cutting chambers 34. In referring to FIG. 4, it can be seen that this sealing is improved by the small clearance between the front part 45 of the bar section 20 and the internal surface of the large face 15, 16. According to a development of the invention, a flexible disc 46 is interposed between the bar section 20 and the large face 15, 16 facing the curved openings 30. The disc 46 operates as a valve coming to be pressed against the faces 15, 16 during an internal overpressure to close off the openings 30. The connecting bars 28 pass through holes made in the disc 46 which moves with these bars with little play. Other sealing means, for example with a drawer, can be envisaged.

L'invention n'est bien entendu nullement limitée au mode de mise en oeuvre plus particulièrement décrit.The invention is of course by no means limited to the mode of implementation more particularly described.

Claims (10)

Disjoncteur multipolaire basse tension à double enveloppe, dont chaque pôle comprend, un bloc unipolaire (11) de coupure ayant une boîte (12) parallélélipèdique à deux grandes faces latérales (15,16), en matière plastique moulée, et des contacts (19,22,23) associés à une chambre de coupure (24) logés dans ledit bloc (11), plusieurs blocs (11) étant montés côte à côte dans un boîtier moulé (10) pour constituer le disjoncteur multipolaire, caractérisé en ce qu'un contact mobile est agencé en pont de contacts (19) rotatif qui coopère avec deux contacts fixes opposés (22,23), que le pont de contact (19) est porté par un tronçon de barreau rotatif (20), qui s'étend transversalement sensiblement au centre de ladite boîte (12) en étant intercalé et guidé latéralement par les deux grandes faces latérales (15,16) de la boîte (12) tout en pouvant se débattre en translation limitée parallèlement à ces grandes faces (15,16), que les tronçons de barreau (20) des différents blocs (11) juxtaposés sont mécaniquement solidarisés par deux barres de liaison (28) parallèles qui s'étendent perpendiculairement auxdites grandes faces (15,16) et traversent à faible jeu des orifices (29) diamétralement opposés, ménagés dans les tronçons de barreau (20) successifs, que les deux barres de liaison (28) sont accouplées à une manivelle (42) à deux bras (43) diamétralement opposés, et qu'un mécanisme de commande (32), fixé à la partie supérieure (14) de l'un des blocs (11), comporte deux flasques métalliques (34) portant les paliers (40) de ladite manivelle (42) et une bielle inférieure actionnant ladite manivelle.Low-voltage multi-pole double-circuit circuit breaker, each pole of which comprises a unipolar block (11) of cut-off having a box (12) paralleleliped with two large lateral faces (15,16), of molded plastic, and contacts (19, 22,23) associated with a breaking chamber (24) housed in said block (11), several blocks (11) being mounted side by side in a molded case (10) to constitute the multipole circuit breaker, characterized in that a movable contact is arranged in a rotary contact bridge (19) which cooperates with two opposite fixed contacts (22,23), that the contact bridge (19) is carried by a section of rotary bar (20), which extends transversely substantially in the center of said box (12) while being inserted and guided laterally by the two large lateral faces (15,16) of the box (12) while being able to struggle in limited translation parallel to these large faces (15,16) , that the bar sections (20) different juxtaposed blocks (11) are mechanically secured by two parallel connecting bars (28) which extend perpendicularly to said large faces (15, 16) and pass through diametrically opposite orifices (29), made with little clearance, formed in the sections of successive bar (20), that the two connecting bars (28) are coupled to a crank (42) with two diametrically opposed arms (43), and that a control mechanism (32), fixed to the upper part (14 ) of one of the blocks (11), comprises two metal flanges (34) carrying the bearings (40) of said crank (42) and a lower connecting rod actuating said crank. Disjoncteur selon la revendication 1, caractérisé en ce que ledit mécanisme (32) est délimité latéralement par lesdits deux flasques (34) parallèles dont l'écartement correspond à celui desdites grandes faces (15,16) d'un bloc unipolaire (11).Circuit breaker according to claim 1, characterized in that said mechanism (32) is delimited laterally by said two parallel flanges (34) whose spacing corresponds to that of said large faces (15, 16) of a unipolar block (11). Disjoncteur selon la revendication 1 ou 2, caractérisé en ce que lesdites deux grandes faces latérales (15,16) comportent chacune deux lumières incurvées (30) pour le passage avec jeu et le débattement desdites deux barres de liaison (28).Circuit breaker according to claim 1 or 2, characterized in that said two large lateral faces (15,16) each have two curved openings (30) for passage with play and the movement of said two connecting bars (28). Disjoncteur selon la revendication 3, caractérisé en ce que la face frontale (45) du tronçon de barreau (20) en regard de la grande face latérale (15,16) associée est agencée pour coiffer à faible jeu lesdites deux lumières incurvées (30) en limitant les fuites de gaz à travers ces lumières vers l'extérieur de la boîte (12) et réaliser une boîte dont la partie centrale est quasi étanche.Circuit breaker according to claim 3, characterized in that the front face (45) of the section of bar (20) opposite the large side face (15,16) associated is arranged to cover at low clearance said two curved lights (30) by limiting gas leaks through these lights to the outside of the box (12) and making a box whose central part is almost sealed. Disjoncteur selon la revendication 4, caractérisé en ce qu'entre ladite face frontale (45) et la grande face latérale (15,16) est intercalé un disque souple (46) qui est solidaire en rotation desdites barres (28) et qui coiffe lesdites lumières, de façon à constituer un clapet d'obturation des lumières lors d'une surpression interne de la boîte.Circuit breaker according to claim 4, characterized in that between said front face (45) and the large lateral face (15,16) is interposed a flexible disc (46) which is integral in rotation with said bars (28) and which covers said bars lights, so as to constitute a shutter valve for the lights during an internal overpressure of the box. Disjoncteur selon l'une quelconque des revendications précédentes, caractérisé en ce que des plaques entretoises (27) sont intercalées entre des blocs unipolaires (11) adjacents, que l'ensemble des blocs unipolaires (11) et des entretoises (27) sont reliés par des tiges d'alignement (37) et que les plaques entretoises comportent des lumières incurvées (30) pour le passage des barres de liaison (28).Circuit breaker according to any one of the preceding claims, characterized in that spacer plates (27) are interposed between adjacent single-pole blocks (11), that all of the single-pole blocks (11) and spacers (27) are connected by alignment rods (37) and that the spacer plates have curved slots (30) for the passage of the connecting bars (28). Disjoncteur selon la revendication 6, caractérisé en ce que les tiges d'alignement (37) traversent sans jeu des orifices (38) ménagés dans les flasques (34) du mécanisme (32).Circuit breaker according to claim 6, characterized in that the alignment rods (37) pass through holes (38) formed in the flanges (34) of the mechanism (32) without play. Disjoncteur selon l'une quelconque des revendications précédentes, caractérisé en ce que le mécanisme (32) comporte une manette (31) de commande manuelle, et que le mécanisme est logé dans ledit boîtier (11) qui comporte une lumière de passage de la manette.Circuit breaker according to any one of the preceding claims, characterized in that the mechanism (32) comprises a handle (31) for manual control, and that the mechanism is housed in said housing (11) which comprises a light for passing the handle . Disjoncteur selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit tronçon de barreau (20) est en un matériau isolant ayant une fenêtre (33) de passage du pont de contact (19), monté flottant suivant un diamètre dudit tronçon (20) et que les orifices (29) de passage des deux barres de liaison (28) sont décalés angulairement par rapport audit diamètre.Circuit breaker according to any one of the preceding claims, characterized in that the said bar section (20) is made of an insulating material having a window (33) for passage of the contact bridge (19), mounted floating along a diameter of said section (20) and that the orifices (29) for passage of the two connecting bars (28) are offset angularly with respect to said diameter. Disjoncteur selon l'une quelconque des revendications précédentes, careactérisé en ce qu'une manivelle (42) est disposée sur chaque côté de la boîte (12) et que les barres de liaison(28) traversent tous les tronçons de barreau (20) et les deux manivelles (42).Circuit breaker according to any one of the preceding claims, characterized in that a crank (42) is arranged on each side of the box (12) and that the connecting bars (28) pass through all the sections of bar (20) and the two cranks (42).
EP92420356A 1991-10-15 1992-10-09 Multipole circuit-breaker being composed of single-pole units Expired - Lifetime EP0542636B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9112793 1991-10-15
FR9112793A FR2682531B1 (en) 1991-10-15 1991-10-15 MULTIPOLAR CIRCUIT BREAKER WITH SINGLE POLE BLOCKS.

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EP0542636A1 true EP0542636A1 (en) 1993-05-19
EP0542636B1 EP0542636B1 (en) 1996-04-17

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EP (1) EP0542636B1 (en)
JP (1) JP3392442B2 (en)
KR (1) KR100299551B1 (en)
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AT (1) ATE137058T1 (en)
AU (1) AU659219B2 (en)
BR (1) BR9203982A (en)
CA (1) CA2080063C (en)
DE (1) DE69209972T2 (en)
ES (1) ES2087493T3 (en)
FR (1) FR2682531B1 (en)
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ZA (1) ZA927903B (en)

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Publication number Priority date Publication date Assignee Title
EP0617449A1 (en) * 1993-03-25 1994-09-28 Schneider Electric Sa Switching apparatus
DE4423277B4 (en) * 1993-07-06 2004-08-19 Circuit Breaker Industries Ltd., Elandsfontein Circuit breakers with a common tripping mechanism
WO1995008837A1 (en) * 1993-09-24 1995-03-30 Schneider Electric S.A. Switching apparatus
FR2710453A1 (en) * 1993-09-24 1995-03-31 Telemecanique Contactor-circuit breaker device.
US6087609A (en) * 1996-07-27 2000-07-11 Kloeckner-Moeller-Gmbh Circuit breaker, arcing chamber housing for a circuit breaker and housing module for an arcing chamber housing
WO2000054297A1 (en) * 1999-03-08 2000-09-14 Moeller Gmbh Multipole circuit-breaker
US6259338B1 (en) 1999-03-08 2001-07-10 Moeller Gmbh Multipole circuit breaker
FR2826174A1 (en) * 2001-06-19 2002-12-20 Moeller Gmbh MULTIPOLAR CUTTING APPARATUS HAVING DOUBLE HOUSING
WO2011033184A1 (en) 2009-09-18 2011-03-24 Schneider Electric Industries Sas Functional spacer for separating bulbs in a multipolar cutoff device, and circuit breaker
WO2011033183A1 (en) 2009-09-18 2011-03-24 Schneider Electric Industries Sas Assembly of double-casing multipolar cutoff device, and circuit breaker including same
US8829369B2 (en) 2009-09-18 2014-09-09 Schneider Electric Industries Sas Functional separating spacer of the cartridges in a multipole switchgear device and circuit breaker
US9064645B2 (en) 2009-09-18 2015-06-23 Schneider Electric Industries Sas Assembly of a multipole switchgear device with double enclosure and circuit breaker comprising the same
US9129768B2 (en) 2009-10-15 2015-09-08 Siemens Aktiengesellschaft Multipole electrical switching device
US9087652B2 (en) 2010-08-24 2015-07-21 Siemens Aktiengesellschaft Electrical switch and method for mounting a switching unit of an electrical switch
EP2733720A1 (en) 2012-11-19 2014-05-21 Schneider Electric Industries SAS Thermal-magnetic tripping device for tripping a polyphase circuit breaker
US9024711B2 (en) 2012-11-19 2015-05-05 Schneider Electric Industries Sas Thermal-magnetic trip device for tripping a multiphase circuit breaker
WO2020124175A1 (en) 2018-12-21 2020-06-25 Weg Drives & Controls - Automação Ltda Switch module in a moulded casing for a circuit breaker and circuit breaker in a modular moulded casing
US11942299B2 (en) 2018-12-21 2024-03-26 Weg Drives And Controls Automação Ltda Switch module in a molded casing for a circuit breaker and circuit breaker in a modular molded casing

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BR9203982A (en) 1993-04-27
FR2682531B1 (en) 1993-11-26
AU659219B2 (en) 1995-05-11
AU2639792A (en) 1993-04-22
ZA927903B (en) 1993-04-21
TW214013B (en) 1993-10-01
KR930008897A (en) 1993-05-22
CA2080063C (en) 2002-12-10
MX9205923A (en) 1993-04-01
JP3392442B2 (en) 2003-03-31
CN1071785A (en) 1993-05-05
MY107991A (en) 1996-07-15
DE69209972T2 (en) 1996-10-31
EP0542636B1 (en) 1996-04-17
CA2080063A1 (en) 1993-04-16
KR100299551B1 (en) 2001-10-22
JPH0628964A (en) 1994-02-04
FR2682531A1 (en) 1993-04-16
CN1028935C (en) 1995-06-14
ATE137058T1 (en) 1996-05-15
DE69209972D1 (en) 1996-05-23
US5281776A (en) 1994-01-25
ES2087493T3 (en) 1996-07-16

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