EP0318344A1 - Additional fault indicator for electrical switch device - Google Patents

Additional fault indicator for electrical switch device Download PDF

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Publication number
EP0318344A1
EP0318344A1 EP88402708A EP88402708A EP0318344A1 EP 0318344 A1 EP0318344 A1 EP 0318344A1 EP 88402708 A EP88402708 A EP 88402708A EP 88402708 A EP88402708 A EP 88402708A EP 0318344 A1 EP0318344 A1 EP 0318344A1
Authority
EP
European Patent Office
Prior art keywords
additive
signaling
lever
movable
assembly
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
EP88402708A
Other languages
German (de)
French (fr)
Other versions
EP0318344B1 (en
Inventor
Pierre Bouley
Serge Guenin
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.)
Telemecanique SA
Original Assignee
Telemecanique Electrique SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Telemecanique Electrique SA filed Critical Telemecanique Electrique SA
Publication of EP0318344A1 publication Critical patent/EP0318344A1/en
Application granted granted Critical
Publication of EP0318344B1 publication Critical patent/EP0318344B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main 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
    • H01H71/04—Means for indicating condition of the switching device

Definitions

  • the present invention relates to a signaling additive which can be housed in a removable manner in an electrical multipolar protection device such as a motor circuit breaker.
  • an additive in a motor circuit breaker of the type having in a housing: - at least two separable contacts per pole, - a magnetic and / or thermal trip unit which detects faults such as overloads or short-circuits affecting one or the other pole, - a mechanism for opening and closing of the contacts comprising a lock actuatable by the trigger, as well as an on push button and an off push button for manual control of the device.
  • the additive then comprises: an electrical signaling member which has a moving element between an armed position and a signaling position, the moving element being armed by the on push-button, - and a locking mechanism associated with the moving element and subject to the opening mechanism - closing so to maintain the crew in the armed position during manual actuation of the stop push-button and to release the mobile crew during a trip on fault.
  • the known signaling additives housed in motor circuit breakers have the disadvantage of being devoid of any display device which would allow the user to note that the device has tripped following an overcurrent fault.
  • the constitution of known signaling additives is complicated, which involves an additional cost due to the number of components required and to their assembly.
  • the object of the invention is in particular to allow the user to visually observe on the protection device a trip on fault, in conjunction with local or remote electrical signaling of this fault, and to distinguish between such a trigger and manual opening.
  • the signaling additive is housed under a cover of the electrical protection device; a visual fault indicator is associated in the housing of the additive with the electrical signaling member, this indicator being constituted by a lever whose movement is coupled to that of the moving assembly; a first opening and a second opening are respectively provided in the housing of the additive block and in the cover of the protective device to ensure direct visibility of the indicator of the additive.
  • the user can thus see directly on the protective device that an automatic triggering has occurred, while a remote control or signaling can be undertaken using the electrical signaling device.
  • the indicator lever can be driven by at least one bearing of the movable assembly, this bearing possibly advantageously constituting the pivot axis of the lever.
  • the movable assembly is preferably movable parallel to the direction in which the push button is pressed; the coupling of the indicator lever with the moving element is then such that the viewing range approaches the openings provided in the additive housing and in the cover of the device when the moving element moves away from it.
  • the protective device shown in the figures is a three-pole motor circuit breaker 10; it could of course be a protective device of a different type ensuring the functions of circuit breaker and / or thermal relay.
  • the motor circuit breaker 10 includes a base 11 and a cover 12 removably attached to the base.
  • a thermal and magnetic trip device 13 is provided on a first side of a flat block 14 which houses in a metal envelope a mechanism 15 for opening and closing of contacts 16. These contacts 16 are only illustrated in FIGS. 8 and 9 .
  • the mechanism 15 includes a trigger lock secured to the trigger 13, as well as a push button “on” 17 and a “stop” push button 18; the buttons 17, 18 can be moved in a direction defined by the arrow F (see Figures 1 and 4).
  • the motor circuit breaker is armed and the contacts are closed when button 17 is pressed; the contacts are open when button 18 is pressed.
  • a signaling additive 20 is added in the device 10, more precisely on the base 11, being covered by the cover 12 when the latter is fixed on the base.
  • the additive 20 has a housing 21 and, in this housing, on the one hand, an electrical fault signaling member 22 constituted by a switch and, on the other hand, a visual fault indicator 23 (see FIG. 7) coupled at the switch.
  • the additive 20 is removably attached to the compartment 14 of the circuit breaker using snap-fastening elements, not shown.
  • the additive has on the compartment side a first finger or other feeler element 24 movable in a direction parallel to the arrow F through a slot 25 in the housing 21 and a window 26 in the compartment; the movement of the finger 24 downwards is caused by the direct pressing of a bearing 17a of the start button 17 (FIGS. 8-10); its upward movement is produced by a return spring 27 applied to the movable part of the switch 22 ( Figures 11 - 13).
  • the signaling additive 20 comprises on the compartment side a second finger or other feeler element 28 movable along a curved path in a slot 29 formed in the housing 21 and in a corresponding window 30 in the compartment.
  • the displacement of the finger 28 takes place in the event of a fault exclusively and it is produced by percussion on this finger of a lever 31 belonging to the lock of the opening - closing mechanism 15 (see Figures 8 - 10).
  • the lever 31 only moves in the event of a fault detected by the trigger and it is subject, on the one hand, to a hook pin 32 associated with the trigger 13 and, on the other hand, to a balance 33 bracing the two push buttons 17, 18; the lever 31 controls via a pivoting lever 34 a contact carrier 35, which contact carrier ensures in the high position the closing of the contacts 16 (FIG. 8) and in the low position the separation of the contacts (FIGS. 9 and 10).
  • the mechanism 15 can be constituted differently.
  • the housing 21 of the additive also has an opening 36 (FIGS. 4 and 7) in which a pellet or display area specific to the fault indicator 23 may appear.
  • l opening 36 is located opposite another opening 37 (see FIG. 3) formed frontally on the cover; in this way, the user observes by observing the opening 37 the appearance of an automatic triggering which is certain to come from a fault.
  • the electrical signaling switch member 22 housed in the housing 21 of the additive comprises a movable assembly 40 provided with a substantially vertical bar 41 (FIGS. 7 and 11-14) which is integral, on the one hand, with the feeler finger 24, on the other hand, of a contact holder 42, and which is urged upwards by the return spring 27.
  • the contact holder 42 contains a contact bridge 43 which cooperates with fixed contacts 44 connected to the exterior of the box by electrical conductors 45.
  • the contact carrier 42 has a plane of symmetry XX parallel to the direction F and moves in this plane (FIG. 13); the bar 41 is offset laterally to one side 46 of the housing 21 along an axis YY parallel to XX to facilitate the installation of the visual indicator 23 ( Figure 13).
  • the signaling switch 22 is presently of the closing type in the event of a fault; it can also be of the opening type in the event of a fault, and this by simply changing the position of the contact bridge 43 and the fixed contacts 44.
  • the signaling additive comprises a blocking mechanism 50 associated with the moving element 40 and subject to the opening-closing mechanism 15 via the second feeler finger 28.
  • the locking mechanism 50 (see FIGS. 11-14) comprises a lever 51 able to pivot about an axis 52 and integral with the finger 28, the circular slot 29 for guiding the finger being consequently centered on the axis 52.
  • Au lever 51 is articulated at one end of a bar 53, the other end of which carries a spout 54 which cooperates with a hooking surface 55 provided on the movable assembly 40.
  • a ramp 56 adjacent to the surface 55 cooperates with an inclined face of the spout 54.
  • a hairpin spring 57 urges the bar 53 towards its hooking position in the armed position (see FIG. 11) of the switch 22 - visual indicator 23 fault assembly.
  • the switch member 22 is coupled with the visual fault indicator 23, the latter being constituted by a bent lever 60.
  • the lever 60 carries at one end at least one display area 61 capable of coming opposite opening 36 of housing 21 and light 37 of cover 12; at the other end, the lever 60 is articulated at 62 to a boss 63 of the bar 41 located on one side of this bar.
  • two fixed stops 64, 65 are provided which respectively limit the pivoting of the bent lever 60 in the normal position (FIG. 11) and in the fault signaling position (FIGS. 12, 13).
  • the bent lever 60 is articulated on a fixed axis 66 and linked to the housing 21, and its pivoting is generated by drive pins 67, 68 provided on the bar 41.
  • the pin 67 drives the bar towards the normal position indicated in dashes, while the pin 68 puts the bar in its signaling position of fault indicated in solid lines.
  • stops can be provided at other points of the housing 21 for the lever 60, for example at the level of the track 61 and the opening 36.
  • the arrangements shown avoid the use of a spring specific reminder for lever 60.
  • the hook 32 pivots and releases the lever 31 which is biased by a spring not indicated to pivot counterclockwise; therefore the lever 31, on the one hand, drives the lever 34 which lowers the contact carrier 35 and opens the main contacts 16, on the other hand, drives the feeler finger 28 which descends into the slot 30 of the compartment 14 and into the slot 29 of the additive along a circular path defined by the slot 29 and the lever 51 of the additive.
  • the bar 53 is retracted to the left and its spout 54 frees the range 55 of the mobile assembly 40, so that the latter rises rapidly under the effect of the spring 27.
  • the lever 60 is then constrained by the stop 65 to pivot counterclockwise towards the position of FIG. 12, the track 61 appearing at the level of the opening 36.
  • the motor circuit breaker lock comes in the state illustrated in FIG. 10, while the push buttons 17 and 18 are respectively removed and erased relative to compartment 14.
  • the bar 53 returns quickly with the finger 28 and the lever 51 in a position substantially identical to that of Figure 11, except that the inclined face of the spout 54 is applied against the ramp 56 of the crew mobile.
  • the circuit breaker is reset by depressing the button 17 to return to the "on" position in FIGS. 8 to 13; resetting the additive is easy since the range 17a of the button 17 drives down the feeler finger 24 and the moving element 40; the ramp 56 slides on the face 54, so that the bar 53 disappears slightly and then immediately comes to hang on the seat 55 under the effect of the spring 57.
  • the angled viewing lever 60 automatically returns to its position of Figure 11.
  • the axes of movement of the locking bar 53 and of the movable assembly 40 are substantially coplanar.
  • the electrical conductors 45 which connect the additive to the outside can be connected to terminals B (FIG. 12) provided on a wall of the housing 21 of the additive and accessible from the outside of the cover 12.
  • terminals B FIG. 12
  • the additive 20 is housed under the cover 12 in a small volume defined between a wall of the envelope of the block 14 and a wall of the cover, this volume having a thickness e comparable to that reserved for the trigger 13 and a height h adapted to the projection of the nose of the camera.
  • the switch 22 can be associated directly with the bar 53 of the locking mechanism by being provided for this purpose with a bistable retaining member.

Abstract

The invention relates to an additional fault indicator for a multipole electrical protection device such as a motor circuit-breaker. The additional part is housed under the cover of the protection device. In its casing (21), the lever (60) of a visual fault indicator (23) is coupled to the moving kit (40) of an electrical signalling interrupter (22), openings (36) being provided in the casing (21) and the cover in order to ensure direct visibility of the indicator (23). <IMAGE>

Description

La présente invention concerne un additif de signalisation logeable de manière amovible dans un appareil électrique de protection multipolaire tel qu'un disjoncteur-moteur.The present invention relates to a signaling additive which can be housed in a removable manner in an electrical multipolar protection device such as a motor circuit breaker.

Pour assurer une signalisation de défaut, il est connu de monter un additif dans un disjoncteur-moteur du type présen­tant dans un boîtier :
- au moins deux contacts séparables par pôle,
- un ensemble déclencheur magnétique et/ou thermique qui détecte les défauts tels que surcharges ou courts-circuits affectant l'un ou l'autre pôle,
- un mécanisme d'ouverture et de fermeture des contacts comprenant une serrure actionnable par le déclencheur, ainsi qu'un bouton-poussoir marche et un bouton-poussoir arrêt pour la commande manuelle de l'appareil.To ensure fault reporting, it is known to mount an additive in a motor circuit breaker of the type having in a housing:
- at least two separable contacts per pole,
- a magnetic and / or thermal trip unit which detects faults such as overloads or short-circuits affecting one or the other pole,
- a mechanism for opening and closing of the contacts comprising a lock actuatable by the trigger, as well as an on push button and an off push button for manual control of the device.

L'additif comporte alors :
- un organe de signalisation électrique qui présente un équipage mobile entre une position armée et une position de signalisation, l'équipage mobile étant armé par le bouton-poussoir marche,
- et un mécanisme de blocage associé à l'équipage mobile et assujetti au mécanisme d'ouverture - fermeture de manière à maintenir l'équipage en position armée lors d'un action­nement manuel du bouton-poussoir arrêt et à libérer l'équipage mobile lors d'un déclenchement sur défaut.The additive then comprises:
an electrical signaling member which has a moving element between an armed position and a signaling position, the moving element being armed by the on push-button,
- and a locking mechanism associated with the moving element and subject to the opening mechanism - closing so to maintain the crew in the armed position during manual actuation of the stop push-button and to release the mobile crew during a trip on fault.

Les additifs de signalisation connus logés dans les disjonc­teurs-moteur ont pour inconvénient d'être dépourvus de tout dispositif de visualisation qui permettrait à l'utilisateur de constater que l'appareil a déclenché consécutivement à un défaut de surintensité. En outre, la constitution des addi­tifs de signalisation connus est compliquée, ce qui entraîne un surcoût dû au nombre des constituants nécessaires et à leur assemblage.The known signaling additives housed in motor circuit breakers have the disadvantage of being devoid of any display device which would allow the user to note that the device has tripped following an overcurrent fault. In addition, the constitution of known signaling additives is complicated, which involves an additional cost due to the number of components required and to their assembly.

L'invention a en particulier pour but de permettre à l'uti­lisateur de constater visuellement sur l'appareil de protec­tion un déclenchement sur défaut, en conjugaison avec une signalisation électrique locale ou à distance de ce défaut, et de faire la distinction entre un tel déclenchement et une ouverture manuelle.The object of the invention is in particular to allow the user to visually observe on the protection device a trip on fault, in conjunction with local or remote electrical signaling of this fault, and to distinguish between such a trigger and manual opening.

Elle a également pour but de réaliser un additif logeable dans un appareil de protection multipolaire, combinant de manière simple et peu coûteuse une signalisation électrique et une visualisation des défauts électriques, cette combi­naison étant assurée par un couplage à faible nombre de pièces constituantes et d'assemblage facile.It also aims to produce an additive that can be accommodated in a multipolar protection device, combining electrical signaling and visualization of electrical faults in a simple and inexpensive manner, this combination being provided by a coupling with a low number of component parts and easy assembly.

Selon l'invention, l'additif de signalisation est logé sous un capot de l'appareil électrique de protection ; un indica­teur visuel de défaut est associé dans le boîtier de l'addi­tif à l'organe de signalisation électrique, cet indicateur étant constitué par un levier dont le mouvement est couplé à celui de l'équipage mobile ; une première ouverture et une deuxième ouverture sont respectivement prévues dans le boîtier du bloc additif et dans le capot de l'appareil de protection pour assurer la visibilité directe de l'indica­teur de l'additif.According to the invention, the signaling additive is housed under a cover of the electrical protection device; a visual fault indicator is associated in the housing of the additive with the electrical signaling member, this indicator being constituted by a lever whose movement is coupled to that of the moving assembly; a first opening and a second opening are respectively provided in the housing of the additive block and in the cover of the protective device to ensure direct visibility of the indicator of the additive.

L'utilisateur peut ainsi voir directement sur l'appareil de protection qu'il s'est produit un déclenchement automati­que, tandis qu'une commande ou une signalisation à distance peut être entreprise grâce à l'organe de signalisation électrique.The user can thus see directly on the protective device that an automatic triggering has occurred, while a remote control or signaling can be undertaken using the electrical signaling device.

Le levier indicateur peut être entraîné par au moins une portée de l'équipage mobile, cette portée pouvant constituer avantageusement l'axe de pivotement du levier.The indicator lever can be driven by at least one bearing of the movable assembly, this bearing possibly advantageously constituting the pivot axis of the lever.

L'équipage mobile est de préférence déplaçable parallèle­ment à la direction d'enfoncement du bouton-poussoir mar­che ; le couplage du levier indicateur avec l'équipage mobile est alors tel que la plage de visualisation se rapproche des ouvertures prévues dans le boîtier de l'addi­tif et dans le capot de l'appareil lorsque l'équipage mobile s'en éloigne.The movable assembly is preferably movable parallel to the direction in which the push button is pressed; the coupling of the indicator lever with the moving element is then such that the viewing range approaches the openings provided in the additive housing and in the cover of the device when the moving element moves away from it.

La description qui suit va expliciter les caractéristiques et avantages d'un mode de réalisation particulier de l'invention.The following description will explain the characteristics and advantages of a particular embodiment of the invention.

Au dessin annexé :

  • La figure 1 représente en élévation un disjoncteur-­moteur équipé de l'additif de signalisation selon l'invention ;
  • La figure 2 est une vue de côté du disjoncteur-moteur de la figure 1 ;
  • La figure 3 en est une vue de dessus ;
  • La figure 4 montre en perspective le disjoncteur-­moteur et l'additif désencliqueté ;
  • La figure 5 est une vue en élévation de l'additif du côté de la serrure du disjoncteur-moteur ;
  • La figure 6 est une vue de côté de l'additif de la figure 5 ;
  • La figure 7 est une élévation de l'additif ouvert du côté opposé à la serrure du disjoncteur-moteur ;
  • Les figures 8 à 10 représentent schématiquement le disjoncteur-moteur, respectivement à l'état marche, à l'instant où se produit un défaut de surintensité et à l'état déclenché ;
  • Les figures 11 à 13 montrent schématiquement l'additif de signalisation dans les mêmes phases respectives de fonctionnement ;
  • La figure 14 est une vue coupe selon A-A de la figure 11 ;
  • La figure 15 représente une variante de couplage du levier indicateur avec l'interrupteur de signalisa­tion électrique.
In the attached drawing:
  • Figure 1 shows in elevation a motor circuit breaker equipped with the signaling additive according to the invention;
  • Figure 2 is a side view of the motor circuit breaker of Figure 1;
  • Figure 3 is a top view;
  • Figure 4 shows in perspective the motor circuit breaker and the disengaged additive;
  • Figure 5 is an elevational view of the additive from the side of the motor circuit breaker lock;
  • Figure 6 is a side view of the additive of Figure 5;
  • Figure 7 is an elevation of the additive open on the side opposite the lock of the motor circuit breaker;
  • Figures 8 to 10 schematically represent the motor circuit breaker, respectively in the running state, at the time when an overcurrent fault occurs and in the tripped state;
  • Figures 11 to 13 schematically show the signaling additive in the same respective operating phases;
  • Figure 14 is a sectional view along AA of Figure 11;
  • FIG. 15 represents a variant of coupling of the indicator lever with the electrical signaling switch.

L'appareil de protection représenté sur les figures est un disjoncteur-moteur tripolaire 10 ; il pourrait bien entendu s'agir d'un appareil de protection de type différent assu­rant les fonctions de disjoncteur et/ou de relais thermique.The protective device shown in the figures is a three-pole motor circuit breaker 10; it could of course be a protective device of a different type ensuring the functions of circuit breaker and / or thermal relay.

Le disjoncteur-moteur 10 comprend un socle 11 et un capot 12 fixé de manière amovible au socle. Un déclencheur thermique et magnétique 13 est prévu sur un premier côté d'un bloc plat 14 qui loge dans une enveloppe métallique un mécanisme 15 d'ouverture et de fermeture de contacts 16. Ces contacts 16 ne sont illustrés que sur les figures 8 et 9.The motor circuit breaker 10 includes a base 11 and a cover 12 removably attached to the base. A thermal and magnetic trip device 13 is provided on a first side of a flat block 14 which houses in a metal envelope a mechanism 15 for opening and closing of contacts 16. These contacts 16 are only illustrated in FIGS. 8 and 9 .

Le mécanisme 15 comporte une serrure de déclenchement assujettie au déclencheur 13, ainsi qu'un bouton-poussoir "marche" 17 et un bouton-poussoir "arrêt" 18 ; les boutons 17, 18 sont déplaçables selon une direction définie par la flèche F (voir figures 1 et 4).The mechanism 15 includes a trigger lock secured to the trigger 13, as well as a push button "on" 17 and a "stop" push button 18; the buttons 17, 18 can be moved in a direction defined by the arrow F (see Figures 1 and 4).

Le disjoncteur-moteur est armé et les contacts sont fermés lorsqu'on enfonce le bouton 17 ; les contacts sont ouverts quand on appuie sur le bouton 18.The motor circuit breaker is armed and the contacts are closed when button 17 is pressed; the contacts are open when button 18 is pressed.

Un additif de signalisation 20 est rapporté dans l'appareil 10, plus précisément sur le socle 11, en étant recouvert par le capot 12 quand on fixe celui-ci sur le socle. L'additif 20 présente un boîtier 21 et, dans ce boîtier, d'une part, un organe de signalisation électrique de défaut 22 constitué par un interrupteur et, d'autre part, un indicateur visuel de défaut 23 (voir figure 7) couplé à l'interrupteur.A signaling additive 20 is added in the device 10, more precisely on the base 11, being covered by the cover 12 when the latter is fixed on the base. The additive 20 has a housing 21 and, in this housing, on the one hand, an electrical fault signaling member 22 constituted by a switch and, on the other hand, a visual fault indicator 23 (see FIG. 7) coupled at the switch.

L'additif 20 se fixe de façon amovible au compartiment 14 du disjoncteur à l'aide d'éléments d'encliquetage non repré­sentés.The additive 20 is removably attached to the compartment 14 of the circuit breaker using snap-fastening elements, not shown.

L'additif présente du côté du compartiment un premier doigt ou autre élément palpeur 24 déplaçable selon une direction parallèle à la flèche F à travers une lumière 25 du boîtier 21 et une fenêtre 26 du compartiment ; le déplacement du doigt 24 vers le bas est causé par l'appui direct d'une portée 17a du bouton marche 17 (figures 8 - 10) ; son dépla­cement vers le haut est produit par un ressort de rappel 27 appliqué à la partie mobile de l'interrupteur 22 (figures 11 - 13).The additive has on the compartment side a first finger or other feeler element 24 movable in a direction parallel to the arrow F through a slot 25 in the housing 21 and a window 26 in the compartment; the movement of the finger 24 downwards is caused by the direct pressing of a bearing 17a of the start button 17 (FIGS. 8-10); its upward movement is produced by a return spring 27 applied to the movable part of the switch 22 (Figures 11 - 13).

L'additif de signalisation 20 comprend du côté du comparti­ment un deuxième doigt ou autre élément palpeur 28 déplaça­ble selon une trajectoire courbe dans une fente 29 ménagée dans le boîtier 21 et dans une fenêtre correspondante 30 du compartiment.The signaling additive 20 comprises on the compartment side a second finger or other feeler element 28 movable along a curved path in a slot 29 formed in the housing 21 and in a corresponding window 30 in the compartment.

Le déplacement du doigt 28 a lieu en cas de défaut exclusi­vement et il est produit par percussion sur ce doigt d'un levier 31 appartenant à la serrure du mécanisme 15 d'ouver­ture - fermeture (voir figures 8 - 10). Le levier 31 ne se déplace qu'en cas de défaut détecté par le déclencheur et il est assujetti, d'une part, à un axe-crochet 32 associé au déclencheur 13 et, d'autre part, à un balancier 33 entretoi­sant les deux boutons-poussoir 17, 18 ; le levier 31 comman­de via un levier pivotant 34 un porte-contact 35, lequel porte-contact assure en position haute la fermeture des contacts 16 (figure 8) et en position basse la séparation des contacts (figures 9 et 10). Il va de soi que le mécanis­me 15 peut être constitué différemment.The displacement of the finger 28 takes place in the event of a fault exclusively and it is produced by percussion on this finger of a lever 31 belonging to the lock of the opening - closing mechanism 15 (see Figures 8 - 10). The lever 31 only moves in the event of a fault detected by the trigger and it is subject, on the one hand, to a hook pin 32 associated with the trigger 13 and, on the other hand, to a balance 33 bracing the two push buttons 17, 18; the lever 31 controls via a pivoting lever 34 a contact carrier 35, which contact carrier ensures in the high position the closing of the contacts 16 (FIG. 8) and in the low position the separation of the contacts (FIGS. 9 and 10). It goes without saying that the mechanism 15 can be constituted differently.

Le boîtier 21 de l'additif possède de plus une ouverture 36 (figures 4 et 7) dans laquelle peut apparaître une pastille ou plage de visualisation propre à l'indicateur de défaut 23. Quand le boîtier 21 est enfermé sous le capot 12, l'ouverture 36 est située en regard d'une autre ouverture 37 (voir figure 3) ménagée frontalement sur le capot ; de la sorte, l'utilisateur constate en observant l'ouverture 37 l'apparition d'un déclenchement automatique provenant à coup sûr d'un défaut.The housing 21 of the additive also has an opening 36 (FIGS. 4 and 7) in which a pellet or display area specific to the fault indicator 23 may appear. When the housing 21 is enclosed under the cover 12, l opening 36 is located opposite another opening 37 (see FIG. 3) formed frontally on the cover; in this way, the user observes by observing the opening 37 the appearance of an automatic triggering which is certain to come from a fault.

L'organe interrupteur de signalisation électrique 22 logé dans le boîtier 21 de l'additif comprend un équipage mobile 40 muni d'une barrette sensiblement verticale 41 (figures 7 et 11 - 14) qui est solidaire, d'une part, du doigt palpeur 24, d'autre part, d'un porte-contact 42, et qui est sollici­tée vers le haut par le ressort de rappel 27. Le porte-­contact 42 contient un pont de contact 43 qui coopère avec des contacts fixes 44 reliés à l'extérieur du boîtier par des conducteurs électriques 45. Le porte-contact 42 a un plan de symétrie X-X parallèle à la direction F et se déplace dans ce plan (figure 13) ; la barrette 41 est dépor­tée latéralement vers un côté 46 du boîtier 21 selon un axe Y-Y parallèle à X-X pour faciliter la mise en place de l'indicateur visuel 23 (figure 13).The electrical signaling switch member 22 housed in the housing 21 of the additive comprises a movable assembly 40 provided with a substantially vertical bar 41 (FIGS. 7 and 11-14) which is integral, on the one hand, with the feeler finger 24, on the other hand, of a contact holder 42, and which is urged upwards by the return spring 27. The contact holder 42 contains a contact bridge 43 which cooperates with fixed contacts 44 connected to the exterior of the box by electrical conductors 45. The contact carrier 42 has a plane of symmetry XX parallel to the direction F and moves in this plane (FIG. 13); the bar 41 is offset laterally to one side 46 of the housing 21 along an axis YY parallel to XX to facilitate the installation of the visual indicator 23 (Figure 13).

L'interrupteur de signalisation 22 est présentement du type à fermeture en cas de défaut ; il peut aussi bien être du type à ouverture en cas de défaut et cela par simple change­ment de position du pont de contact 43 et des contacts fixes 44.The signaling switch 22 is presently of the closing type in the event of a fault; it can also be of the opening type in the event of a fault, and this by simply changing the position of the contact bridge 43 and the fixed contacts 44.

L'additif de signalisation comprend un mécanisme de blocage 50 associé à l'équipage mobile 40 et assujetti au mécanisme 15 d'ouverture - fermeture via le deuxième doigt palpeur 28.The signaling additive comprises a blocking mechanism 50 associated with the moving element 40 and subject to the opening-closing mechanism 15 via the second feeler finger 28.

Le mécanisme de blocage 50 (voir figures 11 - 14) comporte un levier 51 apte à pivoter autour d'un axe 52 et solidaire du doigt 28, la fente circulaire 29 de guidage du doigt étant en conséquence centrée sur l'axe 52. Au levier 51 est articulée une extrémité d'une barrette 53 dont l'autre extrémité porte un bec 54 qui coopère avec une portée d'accrochage 55 prévue sur l'équipage mobile 40. Une rampe 56 adjacente à la portée 55 coopère avec une face inclinée du bec 54. Un ressort en épingle 57 sollicite la barrette 53 vers sa position d'accrochage dans la position armée (voir figure 11) de l'ensemble interrupteur 22 - indicateur visuel 23 de défaut.The locking mechanism 50 (see FIGS. 11-14) comprises a lever 51 able to pivot about an axis 52 and integral with the finger 28, the circular slot 29 for guiding the finger being consequently centered on the axis 52. Au lever 51 is articulated at one end of a bar 53, the other end of which carries a spout 54 which cooperates with a hooking surface 55 provided on the movable assembly 40. A ramp 56 adjacent to the surface 55 cooperates with an inclined face of the spout 54. A hairpin spring 57 urges the bar 53 towards its hooking position in the armed position (see FIG. 11) of the switch 22 - visual indicator 23 fault assembly.

A l'organe interrupteur 22 est couplé selon l'invention l'indicateur visuel de défaut 23, celui-ci étant constitué par un levier coudé 60. Le levier 60 porte à une extrémité au moins une plage de visualisation 61 apte à venir en regard de l'ouverture 36 du boîtier 21 et de la lumière 37 du capot 12 ; à l'autre extrémité, le levier 60 est articulé en 62 à un bossage 63 de la barrette 41 situé d'un côté de cette barrette. De l'autre côté de la barrette 41, il est prévu deux butées fixes 64, 65 qui limitent respectivement le pivotement du levier coudé 60 en position normale (figure 11) et en position de signalisation de défaut (figures 12, 13).According to the invention, the switch member 22 is coupled with the visual fault indicator 23, the latter being constituted by a bent lever 60. The lever 60 carries at one end at least one display area 61 capable of coming opposite opening 36 of housing 21 and light 37 of cover 12; at the other end, the lever 60 is articulated at 62 to a boss 63 of the bar 41 located on one side of this bar. On the other side of the bar 41, two fixed stops 64, 65 are provided which respectively limit the pivoting of the bent lever 60 in the normal position (FIG. 11) and in the fault signaling position (FIGS. 12, 13).

Dans la variante de réalisation de la figure 15, le levier coudé 60 est articulé sur un axe 66 fixe et lié au boîtier 21, et son pivotement est engendré par des tétons d'entraî­nement 67, 68 prévus sur la barrette 41. Le téton 67 entraî­ne la barrette vers la position normale indiquée en tirets, tandis que le téton 68 met la barrette dans sa position de signalisation de défaut indiquée en traits pleins. Il va de soi que des butées peuvent être prévues en d'autres points du boîtier 21 pour le levier 60, par exemple au niveau de la plage 61 et de l'ouverture 36. Les agencements représentés évitent l'emploi d'un ressort de rappel spécifique pour le levier 60.In the alternative embodiment of FIG. 15, the bent lever 60 is articulated on a fixed axis 66 and linked to the housing 21, and its pivoting is generated by drive pins 67, 68 provided on the bar 41. The pin 67 drives the bar towards the normal position indicated in dashes, while the pin 68 puts the bar in its signaling position of fault indicated in solid lines. It goes without saying that stops can be provided at other points of the housing 21 for the lever 60, for example at the level of the track 61 and the opening 36. The arrangements shown avoid the use of a spring specific reminder for lever 60.

Le fonctionnement de l'additif de signalisation sera mainte­nant expliqué en regard des figures 8 à 13.The operation of the signaling additive will now be explained with reference to FIGS. 8 to 13.

Dans l'état marche (figure 8), le bouton-poussoir marche 17 est enfoncé, le bouton-poussoir arrêt 18 est saillant et le levier 31 de la serrure est retenu par le crochet 32. De la sorte, le levier pivotant 34 maintient le porte-contact 35 en position haute et les contacts 16 sont donc fermés ; de plus, le doigt palpeur 28 reste à droite de la fenêtre 30. Il en résulte pour l'additif de signalisation (voir figure 11) que l'ensemble formé par le levier 51 et la barrette 53 reste poussé vers la droite par le ressort 57 ; le bec 54 reste donc accroché sur la portée 55 pour maintenir l'équipage mobile 40 en position basse, les contacts 43, 44 étant par conséquent séparés. Le levier indicateur 60 est contraint par la butée 64 vers une position où la plage 61 est dissimulée (figure 11).In the on state (FIG. 8), the on push button 17 is pressed, the stop push button 18 is protruding and the lever 31 of the lock is retained by the hook 32. In this way, the pivoting lever 34 maintains the contact carrier 35 in the high position and the contacts 16 are therefore closed; in addition, the feeler finger 28 remains to the right of the window 30. As a result, for the signaling additive (see FIG. 11), the assembly formed by the lever 51 and the bar 53 remains pushed to the right by the spring. 57; the spout 54 therefore remains attached to the bearing surface 55 to keep the moving element 40 in the low position, the contacts 43, 44 being consequently separated. The indicator lever 60 is constrained by the stop 64 towards a position where the track 61 is concealed (FIG. 11).

Lorsque survient un défaut de surcharge ou de court-circuit (voir figure 9), le crochet 32 pivote et libère le levier 31 qui est sollicité par un ressort non indiqué pour pivoter en sens antihoraire ; donc le levier 31, d'une part, entraîne le levier 34 qui fait descendre le porte-contact 35 et ouvre les contacts principaux 16, d'autre part, entraîne le doigt palpeur 28 qui descend dans la fente 30 du compartiment 14 et dans la fente 29 de l'additif selon une trajectoire circulaire définie par la fente 29 et le levier 51 de l'additif. Comme on le voit figure 12, la barrette 53 est rétractée vers la gauche et son bec 54 libère la portée 55 de l'équipage mobile 40, de sorte que celui-ci monte rapide­ment sous l'effet du ressort 27. Le levier 60 est alors contraint par la butée 65 de pivoter en sens antihoraire vers la position de la figure 12, la plage 61 apparaissant au niveau de l'ouverture 36.When an overload or short-circuit fault occurs (see Figure 9), the hook 32 pivots and releases the lever 31 which is biased by a spring not indicated to pivot counterclockwise; therefore the lever 31, on the one hand, drives the lever 34 which lowers the contact carrier 35 and opens the main contacts 16, on the other hand, drives the feeler finger 28 which descends into the slot 30 of the compartment 14 and into the slot 29 of the additive along a circular path defined by the slot 29 and the lever 51 of the additive. As can be seen in FIG. 12, the bar 53 is retracted to the left and its spout 54 frees the range 55 of the mobile assembly 40, so that the latter rises rapidly under the effect of the spring 27. The lever 60 is then constrained by the stop 65 to pivot counterclockwise towards the position of FIG. 12, the track 61 appearing at the level of the opening 36.

A l'état déclenché, la serrure du disjoncteur-moteur vient dans l'état illustré sur la figure 10, tandis que les boutons-poussoir 17 et 18 sont respectivement sorti et effacé par rapport au compartiment 14. Dans l'additif de signalisation (voir figure 13), la barrette 53 revient rapidement avec le doigt 28 et le levier 51 dans une posi­tion sensiblement identique à celle de la figure 11, à ceci près que la face inclinée du bec 54 est appliquée contre la rampe 56 de l'équipage mobile.In the tripped state, the motor circuit breaker lock comes in the state illustrated in FIG. 10, while the push buttons 17 and 18 are respectively removed and erased relative to compartment 14. In the signaling additive ( see Figure 13), the bar 53 returns quickly with the finger 28 and the lever 51 in a position substantially identical to that of Figure 11, except that the inclined face of the spout 54 is applied against the ramp 56 of the crew mobile.

Le réarmement du disjoncteur s'effectue par l'enfoncement du bouton 17 pour revenir à la position "marche" des figures 8 à 13 ; le réarmement de l'additif est aisé puisque la portée 17a du bouton 17 entraîne vers le bas le doigt palpeur 24 et l'équipage mobile 40 ; la rampe 56 glisse sur la face 54, si bien que la barrette 53 s'efface légèrement puis vient immédiatement après s'accrocher sur la portée 55 sous l'effet du ressort 57. Le levier coudé de visualisation 60 revient automatiquement à sa position de la figure 11.The circuit breaker is reset by depressing the button 17 to return to the "on" position in FIGS. 8 to 13; resetting the additive is easy since the range 17a of the button 17 drives down the feeler finger 24 and the moving element 40; the ramp 56 slides on the face 54, so that the bar 53 disappears slightly and then immediately comes to hang on the seat 55 under the effect of the spring 57. The angled viewing lever 60 automatically returns to its position of Figure 11.

On notera que les axes de déplacement de la barrette de blocage 53 et de l'équipage mobile 40 sont sensiblement coplanaires. Les conducteurs électriques 45 qui relient l'additif à l'extérieur peuvent être raccordés à des bornes B (figure 12) prévues sur une paroi du boîtier 21 de l'addi­tif et accessibles de l'extérieur du capot 12. On observera enfin que l'additif 20 se loge sous le capot 12 dans un faible volume défini entre une paroi de l'enveloppe du bloc 14 et une paroi du capot, ce volume ayant une épaisseur e comparable à celle réservée au déclencheur 13 et une hauteur h adaptée au saillant du nez de l'appareil.It will be noted that the axes of movement of the locking bar 53 and of the movable assembly 40 are substantially coplanar. The electrical conductors 45 which connect the additive to the outside can be connected to terminals B (FIG. 12) provided on a wall of the housing 21 of the additive and accessible from the outside of the cover 12. Finally, it will be observed that the additive 20 is housed under the cover 12 in a small volume defined between a wall of the envelope of the block 14 and a wall of the cover, this volume having a thickness e comparable to that reserved for the trigger 13 and a height h adapted to the projection of the nose of the camera.

Dans une autre variante non représentée, l'interrupteur 22 peut être associé directement à la barrette 53 du mécanisme de blocage en étant muni à cet effet d'un organe de retenue bistable.In another variant not shown, the switch 22 can be associated directly with the bar 53 of the locking mechanism by being provided for this purpose with a bistable retaining member.

Claims (8)

1. Additif de signalisation pour appareil de protec­tion multipolaire présentant dans un boîtier :
- au moins deux contacts séparables (16) par pôle,
- un ensemble déclencheur (13) magnétique et/ou thermique,
- un mécanisme (15) d'ouverture et de fermeture des contacts comprenant une serrure actionnable par le déclencheur ainsi qu'un bouton-poussoir marche (17) et un bouton-­poussoir arrêt (18) pour la commande manuelle de l'appa­reil,
l'additif (20) comportant :
- un organe de signalisation électrique (22) qui présente un équipage (40) mobile entre une position armée et une position de signalisation,
- l'équipage mobile étant déplaçable par le bouton-poussoir marche au moyen d'un élément palpeur (24),
- un mécanisme de blocage (50) associé à l'équipage mobile (40) et assujetti au mécanisme (15) d'ouverture - ferme­ture de manière à maintenir l'équipage en position de repos lors d'un actionnement manuel du bouton-poussoir arrêt et à libérer l'équipage mobile lorls d'un déclenche­ment sur défaut,
caractérisé en ce que :
- l'additif (20) est logé sous un capot (12) de l'appareil de protection,
- un indicateur visuel de défaut (23) est couplé dans le boîtier (21) de l'additif à l'organe de signalisation électrique (22),
- l'indicateur visuel étant constitué par un levier (60) dont le mouvement est couplé à celui de l'équipage mobile (40),
- une première ouverture (36) et une deuxième ouverture (37) sont respectivement prévues dans la boîtier du bloc additif et dans le capot de l'appareil de protection pour assurer la visibilité directe de l'indicateur visuel (23) du bloc additif.1. Signaling additive for multi-pole protective device with in a box:
- at least two separable contacts (16) per pole,
- a magnetic and / or thermal trip unit (13),
- a mechanism (15) for opening and closing the contacts comprising a lock actuatable by the trigger as well as an on push-button (17) and a stop push-button (18) for manual control of the device,
the additive (20) comprising:
- an electrical signaling member (22) which has an assembly (40) movable between an armed position and a signaling position,
- the moving element being movable by the operating push button by means of a feeler element (24),
- a locking mechanism (50) associated with the movable assembly (40) and subject to the opening mechanism (15) - closing so as to keep the crew in the rest position during manual actuation of the push button stop and release the moving equipment during a trip on fault,
characterized in that:
- the additive (20) is housed under a cover (12) of the protective device,
- a visual fault indicator (23) is coupled in the housing (21) of the additive to the electrical signaling member (22),
the visual indicator being constituted by a lever (60) the movement of which is coupled to that of the mobile assembly (40),
- a first opening (36) and a second opening (37) are respectively provided in the block housing additive and in the cover of the protective device to ensure direct visibility of the visual indicator (23) of the additive unit. 2. Additif de signalisation selon la revendication 1,
caractérisé en ce que le levier d'indication visuelle (60) est un levier pivotant coudé qui est articulé sur un axe (62) solidaire de l'équipage mobile (40), tandis qu'au moins une butée fixe (64, 65) est prévue dans le boîtier (21) de l'additif pour limiter le pivotement du levier.2. signaling additive according to claim 1,
characterized in that the visual indication lever (60) is an angled pivoting lever which is articulated on an axis (62) integral with the movable assembly (40), while at least one fixed stop (64, 65) is provided in the housing (21) of the additive to limit the pivoting of the lever. 3. Additif de signalisation selon la revendication 1,
caractérisé en ce que le levier d'indication visuelle (60) est un levier pivotant coudé articulé sur un axe fixe (66) du boîtier (21) de l'additif, l'équipage mobile (40) compor­tant au moins une portée d'entraînement (67, 68) associée au levier.3. signaling additive according to claim 1,
characterized in that the visual indication lever (60) is an angled pivoting lever articulated on a fixed axis (66) of the housing (21) of the additive, the moving element (40) comprising at least one bearing drive (67, 68) associated with the lever. 4. Additif de signalisation selon la revendication 3,
caractérisé en ce que l'équipage mobile comporte deux portées (67, 68) d'entraînement associées au levier pivotant coudé (60) pour entraîner celui-ci dans les deux sens.4. signaling additive according to claim 3,
characterized in that the movable assembly comprises two drive surfaces (67, 68) associated with the angled pivoting lever (60) to drive the latter in both directions. 5. Additif de signalisation selon les revendications 1 à 4,
caractérisé en ce que l'équipage mobile (40) de l'organe de signalisation électrique (22) est déplaçable selon un axe parallèle à la direction F de déplacement du bouton-poussoir marche (17) :
- le mécanisme de blocage (50) comprend une barrette (53) sensiblement transversale à l'équipage mobile et munie d'un bec (54) coopérant avec une portée d'accrochage (55) prévue sur l'équipage mobile,
- la barrette de blocage (53) étant sollicitée par un ressort (57) vers sa position d'accrochage de l'équipage mobile et étant liée à un élément palpeur (28) déplaçable en cas de défaut par le mécanisme (15) d'ouverture - fer­meture de manière à subir un effacement de décrochage en cas de déclenchement sur défaut.5. signaling additive according to claims 1 to 4,
characterized in that the movable assembly (40) of the electrical signaling member (22) can be moved along an axis parallel to the direction F of movement of the on push button (17):
the locking mechanism (50) comprises a bar (53) substantially transverse to the movable assembly and provided with a spout (54) cooperating with an attachment range (55) provided on the movable assembly,
- the locking bar (53) being biased by a spring (57) towards its position for hooking the movable assembly and being linked to a movable feeler element (28) in the event of a fault by the opening - closing mechanism (15) so as to undergo a dropout cancellation in the event of a trip on fault. 6. Additif de signalisation selon la revendication 5,
caractérisé en ce que les axes de déplacement de la barrette de blocage (53) et de l'équipage mobile (40) sont sensible­ment coplanaires.6. signaling additive according to claim 5,
characterized in that the axes of movement of the blocking bar (53) and of the movable assembly (40) are substantially coplanar. 7. Additif de signalisation selon l'une des revendi­cations 5 ou 6,
caractérisé en ce que le bec (54) de la barrette de blocage (53) présente une face inclinée applicable contre une rampe (56) de l'équipage mobile (40) dans la position de travail de l'organe de signalisation électrique.7. signaling additive according to one of claims 5 or 6,
characterized in that the spout (54) of the blocking bar (53) has an inclined face which can be applied against a ramp (56) of the mobile assembly (40) in the working position of the electrical signaling member. 8. Additif de signalisation selon l'une des revendi­cations 1 à 7,
caractérisé en ce que le bouton-poussoir marche (17) est directement applicable au moyen d'une portée (17a) sur un élément palpeur (24) solidaire de l'équipage mobile (40).8. signaling additive according to one of claims 1 to 7,
characterized in that the step push-button (17) is directly applicable by means of a bearing surface (17a) on a feeler element (24) integral with the mobile assembly (40).
EP19880402708 1987-11-26 1988-10-27 Additional fault indicator for electrical switch device Expired - Lifetime EP0318344B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8716393 1987-11-26
FR8716393A FR2623938B1 (en) 1987-11-26 1987-11-26 FAULT SIGNALING ADDITIVE FOR ELECTRIC PROTECTIVE APPARATUS

Publications (2)

Publication Number Publication Date
EP0318344A1 true EP0318344A1 (en) 1989-05-31
EP0318344B1 EP0318344B1 (en) 1993-12-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880402708 Expired - Lifetime EP0318344B1 (en) 1987-11-26 1988-10-27 Additional fault indicator for electrical switch device

Country Status (3)

Country Link
EP (1) EP0318344B1 (en)
DE (1) DE3886013T2 (en)
FR (1) FR2623938B1 (en)

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FR2659791A1 (en) * 1990-03-16 1991-09-20 Sprecher & Schuh Ag AUXILIARY SWITCH DEVICE FOR A MANUAL CONTROL MOTOR PROTECTION CIRCUIT BREAKER.
FR2674370A1 (en) * 1991-03-21 1992-09-25 Telemecanique PROTECTIVE SWITCHING APPARATUS ACCOUPABLE TO A CONTROL MODULE AND / OR A SIGNALING MODULE.
FR2675624A1 (en) * 1991-04-22 1992-10-23 Telemecanique ELECTROMECHANICAL SWITCHING DEVICE WITH FRONTAL ADJUSTER BLOCK.
EP1429361A2 (en) * 2002-12-14 2004-06-16 LG Industrial Systems Co., Ltd. Phase deficiency display device for molded case circuit breaker

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DE10047566A1 (en) * 2000-09-22 2002-04-18 Mueller Jean Ohg Elektrotech Blocking device for supply system isolating blade has element for transferring blocking force directly from contact arrangement to isolating blade in event of short circuit
DE102004056376A1 (en) * 2004-11-23 2006-06-01 Abb Patent Gmbh Device for indicating a tripping due to a short-circuit current in an electrical switching device
DE102004056300A1 (en) * 2004-11-23 2006-06-08 Abb Patent Gmbh Device for indicating and signaling a tripping of an electrical switching device by a short-circuit current

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FR2179766A1 (en) * 1972-04-12 1973-11-23 Asea Ab
EP0017817A1 (en) * 1979-04-12 1980-10-29 Siemens Aktiengesellschaft Auxiliary switch for protective circuit-breaking switches
DE3014553A1 (en) * 1980-04-16 1981-10-22 Condor-Werk Gebr. Frede KG Elektro- und Maschinenfabrik, 4722 Ennigerloh Manual motor resetting mechanism - is for motor protection switch and has lever pushed down to break remote indicator circuit by reset button
DE3402850A1 (en) * 1984-01-27 1985-08-01 Siemens AG, 1000 Berlin und 8000 München Protection circuit breaker having an overcurrent and short-circuit trip device
DE3603945A1 (en) * 1986-02-07 1987-08-13 Siemens Ag Add-on switch for protection circuit breakers

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FR2179766A1 (en) * 1972-04-12 1973-11-23 Asea Ab
EP0017817A1 (en) * 1979-04-12 1980-10-29 Siemens Aktiengesellschaft Auxiliary switch for protective circuit-breaking switches
DE3014553A1 (en) * 1980-04-16 1981-10-22 Condor-Werk Gebr. Frede KG Elektro- und Maschinenfabrik, 4722 Ennigerloh Manual motor resetting mechanism - is for motor protection switch and has lever pushed down to break remote indicator circuit by reset button
DE3402850A1 (en) * 1984-01-27 1985-08-01 Siemens AG, 1000 Berlin und 8000 München Protection circuit breaker having an overcurrent and short-circuit trip device
DE3603945A1 (en) * 1986-02-07 1987-08-13 Siemens Ag Add-on switch for protection circuit breakers

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2659791A1 (en) * 1990-03-16 1991-09-20 Sprecher & Schuh Ag AUXILIARY SWITCH DEVICE FOR A MANUAL CONTROL MOTOR PROTECTION CIRCUIT BREAKER.
FR2674370A1 (en) * 1991-03-21 1992-09-25 Telemecanique PROTECTIVE SWITCHING APPARATUS ACCOUPABLE TO A CONTROL MODULE AND / OR A SIGNALING MODULE.
FR2675624A1 (en) * 1991-04-22 1992-10-23 Telemecanique ELECTROMECHANICAL SWITCHING DEVICE WITH FRONTAL ADJUSTER BLOCK.
EP0511042A1 (en) * 1991-04-22 1992-10-28 Schneider Electric Sa Electromechanic switchgear with additive frontal block
EP1429361A2 (en) * 2002-12-14 2004-06-16 LG Industrial Systems Co., Ltd. Phase deficiency display device for molded case circuit breaker
EP1429361A3 (en) * 2002-12-14 2006-04-19 LG Industrial Systems Co., Ltd. Phase deficiency display device for molded case circuit breaker

Also Published As

Publication number Publication date
DE3886013D1 (en) 1994-01-13
DE3886013T2 (en) 1994-03-31
EP0318344B1 (en) 1993-12-01
FR2623938A1 (en) 1989-06-02
FR2623938B1 (en) 1990-04-13

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