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EP0547985A1 - Cartridge fuse with operation indicator - Google Patents

Cartridge fuse with operation indicator Download PDF

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Publication number
EP0547985A1
EP0547985A1 EP92420469A EP92420469A EP0547985A1 EP 0547985 A1 EP0547985 A1 EP 0547985A1 EP 92420469 A EP92420469 A EP 92420469A EP 92420469 A EP92420469 A EP 92420469A EP 0547985 A1 EP0547985 A1 EP 0547985A1
Authority
EP
European Patent Office
Prior art keywords
lever
striker
button
microswitch
fuse
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
EP92420469A
Other languages
German (de)
French (fr)
Other versions
EP0547985B1 (en
Inventor
Joel Viscogliosi
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.)
Ferraz SA
Original Assignee
Ferraz 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 Ferraz SA filed Critical Ferraz SA
Publication of EP0547985A1 publication Critical patent/EP0547985A1/en
Application granted granted Critical
Publication of EP0547985B1 publication Critical patent/EP0547985B1/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
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
    • H01H85/303—Movable indicating elements
    • H01H85/306—Movable indicating elements acting on an auxiliary switch or contact

Definitions

  • the present invention relates to fuse cartridges intended for the protection of electrical circuits and it relates more particularly to those which are equipped with an operating indicator capable of permanently informing as to the state of the incorporated fuse or fuses.
  • the body of cartridges of this type generally comprises an insulating envelope which is closed by lateral connection heads provided with connection knives and which encloses a mass of siliceous material inside which at least one fusible element is embedded connected to the aforementioned heads.
  • a conductor wire of very reduced section which retains, against a spring or other elastic means, a striker mounted in a cavity formed in the envelope, which striker, when released, is capable of acting against the actuation button of a microswitch connected to the power supply of an alarm circuit.
  • microswitches of the bistable type have a larger size and a significantly higher cost than those of the monostable type.
  • their operation usually involves a more pronounced actuation force, which results in associating with the striker a more powerful thrust spring and a conductive retaining wire with a larger section.
  • the present invention mainly intends to remedy, and this by arranging the cartridge so that it is capable of being fitted with a monostable microswitch capable of operating in the manner of a bistable microswitch.
  • the invention essentially consists in interposing between the striker and the actuation button of the microswitch an intermediate lever which, as a result of its cam-shaped profile, is capable of affecting two stable positions and thus conferring at the actuation button the two desired stable positions.
  • the cartridge considered is similar to that which has been described in detail in French patent No. 1,560,404 mentioned above.
  • the space thus defined by the body 1-2 contains a siliceous mass 4 in which is embedded at least one fusible strip 5, the ends of which are made integral with the heads 2.
  • These are also connected to each other by a conductive wire 6 of very reduced section, which runs along the internal wall of the casing 1 and which is shaped to determine a central loop suitable for ensuring the retention, against its spring 7, of a striker 8 slidably mounted in a lateral cavity of said envelope.
  • a striker 8 is associated with a microswitch 9 carried by an insulating support 10 fixed to the body 1-2 by two small lateral brackets 11, which microswitch ensures the control of an electric alarm circuit connected to its terminals 9a .
  • the support 10 is largely hollowed out and supports in its notch a fixed transverse axis 14 on which the lever 13 is mounted for the latter 13.
  • the latter provided with two wings 13a and 13b oriented perpendicularly to one another, is profiled in its central part to present two ranges 13c and 13d, themselves oriented square.
  • the wing 13b is located immediately above the central boss 8a of the usual cap 8b which covers the striker 8, while the part 13c forms a support for the actuation button 12, urged by elastic means 12a incorporated into the microphone -switch 9.
  • the internal mechanism of the microswitch 9 can be absolutely arbitrary, in particular of the bistable type, since it is the intermediate lever or cam 13 which gives the actuation button 12 two perfectly stable positions.
  • lever 13 can be provided sufficiently wide to ensure the actuation of two microswitches 9, mounted side by side on the insulating support 10.

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  • Fuses (AREA)
  • Soil Working Implements (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

Cartouche à fusibles, du genre comprenant d'une part un percuteur (8) retenu à l'encontre de moyens élastiques (7) par un fil conducteur (6) branché entre les têtes de connexion (2) en parallèle avec au moins un élément fusible (5) de manière à fondre avec ce dernier sous l'effet d'une surintensité accidentelle, d'autre part un micro-interrupteur (9) dont le bouton (12) est destiné à être actionné par ledit percuteur pour alimenter un circuit d'alarme en cas de fusion de l'élément (5), caractérisée en ce qu'entre le bouton (12) et le percuteur (8) est interposé un levier basculant (13) profilé à la manière d'une came afin de conférer au microinterrupteur (9) deux positions stables de fonctionnement, quel que soit son mécanisme intérieur. <IMAGE>Fuse cartridge, of the type comprising on the one hand a striker (8) retained against elastic means (7) by a conductive wire (6) connected between the connection heads (2) in parallel with at least one element fuse (5) so as to melt with the latter under the effect of an accidental overcurrent, on the other hand a microswitch (9) whose button (12) is intended to be actuated by said striker to supply a circuit alarm in case of fusion of the element (5), characterized in that between the button (12) and the striker (8) is interposed a rocking lever (13) profiled in the manner of a cam in order to give the microswitch (9) two stable operating positions, regardless of its internal mechanism. <IMAGE>

Description

La présente invention a trait aux cartouches à fusibles destinées à la protection des circuits électriques et elle concerne plus particulièrement celles qui sont équipées d'un indicateur de fonctionnement propre à informer de manière permanente quant à l'état du ou des fusibles incorporés.The present invention relates to fuse cartridges intended for the protection of electrical circuits and it relates more particularly to those which are equipped with an operating indicator capable of permanently informing as to the state of the incorporated fuse or fuses.

On sait que le corps des cartouches de ce type comprend généralement une enveloppe isolante qui est fermée par des têtes latérales de connexion pourvues de couteaux de branchement et qui renferme une masse de matière siliceuse à l'intérieur de laquelle est noyé au moins un élément fusible relié aux têtes précitées. En parallèle avec ce fusible, il est en outre prévu entre les têtes un fil conducteur à section très réduite qui retient, à l'encontre d'un ressort ou autre moyen élastique, un percuteur monté dans une cavité ménagée dans l'enveloppe, lequel percuteur, lorsqu'il est libéré, est propre à agir contre le bouton d'actionnement d'un micro-interrupteur branché sur l'alimentation d'un circuit d'alarme.It is known that the body of cartridges of this type generally comprises an insulating envelope which is closed by lateral connection heads provided with connection knives and which encloses a mass of siliceous material inside which at least one fusible element is embedded connected to the aforementioned heads. In parallel with this fuse, there is also provided between the heads a conductor wire of very reduced section which retains, against a spring or other elastic means, a striker mounted in a cavity formed in the envelope, which striker, when released, is capable of acting against the actuation button of a microswitch connected to the power supply of an alarm circuit.

On conçoit qu'en service normal, l'intégralité du courant est véhiculée par le fusible, de sorte que le percuteur, maintenu par son fil conducteur, est à la position escamotée. Par contre, en cas de surintensité accidentelle, le fusible et le fil conducteur sont détruits par fusion, de sorte que sous l'effet de son ressort, le percuteur vient actionner le micro-interrupteur et le circuit d'alarme qui lui est associé.It is understood that in normal service, the entire current is conveyed by the fuse, so that the striker, held by its conductive wire, is in the retracted position. On the other hand, in the event of accidental overcurrent, the fuse and the conducting wire are destroyed by fusion, so that under the effect of its spring, the striker comes to actuate the microswitch and the alarm circuit which is associated with it.

Cet agencement est bien connu en pratique et a notamment été décrit en détail dans le Brevet français N° 1 560 404 du 26 Décembre 1966 au nom de LU-CIEN FERRAZ ET CIE.This arrangement is well known in practice and has in particular been described in detail in French Patent No. 1,560,404 of December 26, 1966 in the name of LU-CIEN FERRAZ ET CIE.

Il va de soi que si l'on entend obtenir une sécurité d'emploi maximale, il y a lieu de faire en sorte que le circuit d'alarme soit maintenu alimenté aussi longtemps que l'opérateur n'a pas remplacé la cartouche fusible et ré-armé le percuteur. Aussi doit-on avoir recours en pratique à des micro-interrupteurs du type bistable qui comportent une position de repos et une position de fonctionnement, le passage de l'une à l'autre s'effectuant moyennant une pression passa- gère sur le bouton d'actionnement.It goes without saying that if maximum safety is to be obtained, it is necessary to ensure that the alarm circuit is kept supplied as long as the operator has not replaced the fuse cartridge and re-cocked the striker. So we must have recourse in practice to microswitches of the bistable type which comprise a rest position and an operating position, the passage from one to the other being effected by a passing pressure on the button. actuation.

Or, les micro-interrupteurs du type bistable présentent un encombrement plus important et un coût nettement plus élevé que ceux du type monostable. En outre, leur fonctionnement implique le plus souvent un effort d'actionnement plus accentué, ce qui aboutit à associer au percuteur un ressort de poussée plus puissant et un fil conducteur de retenue à plus forte section.However, microswitches of the bistable type have a larger size and a significantly higher cost than those of the monostable type. In addition, their operation usually involves a more pronounced actuation force, which results in associating with the striker a more powerful thrust spring and a conductive retaining wire with a larger section.

C'est à ces inconvénients qu'entend principalement remédier la présente invention, et ce en agen- çant la cartouche de façon à ce qu'elle soit susceptible d'être dotée d'un micro-interrupteur monostable propre à fonctionnera la manière d'un micro-interrupteur bistable.It is to these drawbacks that the present invention mainly intends to remedy, and this by arranging the cartridge so that it is capable of being fitted with a monostable microswitch capable of operating in the manner of a bistable microswitch.

A cet effet, l'invention consiste essentiellement à interposer entre le percuteur et le bouton d'actionnement du micro-interrupteur un levier intermédiaire qui, par suite de son profil en forme de came, est propre à affecter deux positions stables et à conférer ainsi au bouton d'actionnement les deux positions stables désirées.To this end, the invention essentially consists in interposing between the striker and the actuation button of the microswitch an intermediate lever which, as a result of its cam-shaped profile, is capable of affecting two stable positions and thus conferring at the actuation button the two desired stable positions.

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer :

  • Fig. 1 montre, en demi-coupe axiale, l'agencement général d'une cartouche à fusibles établie conformément à la présente invention.
  • Fig. 2, 3 et 4 illustrent à plus grande échelle la structure et le fonctionnement du système indicateur de fonctionnement de la cartouche suivant fig. 1.
The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing:
  • Fig. 1 shows, in axial half-section, the general arrangement of a fuse cartridge established in accordance with the present invention.
  • Fig. 2, 3 and 4 illustrate on a larger scale the structure and operation of the cartridge operation indicator system according to fig. 1.

Dans son agencement général, la cartouche considérée est semblable à celle qui a été décrite en détail dans le brevet français N° 1 560 404 sus-mentionné. On trouve une enveloppe isolante 1, fermée latéralement par deux têtes de connexion 2 dont chacune est pourvue d'un couteau de branchement 3. L'espace ainsi défini par le corps 1-2 renferme une masse siliceuse 4 dans laquelle est noyée au moins une lame fusible 5 dont les extrémités sont rendues solidaires des têtes 2. Celles-ci sont en outre reliées l'une à l'autre par un fil conducteur 6 à section très réduite, qui longe la paroi interne de l'enveloppe 1 et qui est conformé pour déterminer une boucle centrale propre à assurer la retenue, à l'encontre de son ressort 7, d'un percuteur 8 monté à coulissement dans une cavité latérale de ladite enveloppe. Ace percuteur 8 est associé un micro-interrupteur 9 porté par un support isolant 10 fixé au corps 1-2 par deux petites équerres latérales 11, lequel micro-interrupteurassu- re la commande d'un circuit électrique d'alarme branché sur ses bornes 9a.In its general arrangement, the cartridge considered is similar to that which has been described in detail in French patent No. 1,560,404 mentioned above. There is an insulating jacket 1, closed laterally by two connection heads 2 each of which is provided with a connection knife 3. The space thus defined by the body 1-2 contains a siliceous mass 4 in which is embedded at least one fusible strip 5, the ends of which are made integral with the heads 2. These are also connected to each other by a conductive wire 6 of very reduced section, which runs along the internal wall of the casing 1 and which is shaped to determine a central loop suitable for ensuring the retention, against its spring 7, of a striker 8 slidably mounted in a lateral cavity of said envelope. A striker 8 is associated with a microswitch 9 carried by an insulating support 10 fixed to the body 1-2 by two small lateral brackets 11, which microswitch ensures the control of an electric alarm circuit connected to its terminals 9a .

Alors que dans la construction classique le percuteur 8, une fois libéré moyennant fusion du fil conducteur 6, vient directement agir contre le bouton d'actionnement 12 du micro-interrupteur 9, conformément à l'invention on interpose entre lesdits percuteur et bouton un levier basculant 13 profilé à la manière d'une came.While in conventional construction the striker 8, once released by melting the conductive wire 6, directly acts against the actuating button 12 of the microswitch 9, in accordance with the invention interposed between said striker and button a lever tilting 13 shaped like a cam.

Comme particulièrement visible en fig. 2, le support 10 est largement évidé et supporte dans son échancrure un axe transversal fixe 14 sur lequel est monté fou le levier 13. Ce dernier, pourvu de deux ailes 13a et 13b orientées perpendiculairement l'une à l'autre, est profilé dans sa partie centrale pour présenter deux portées 13c et 13d, elles-mêmes orientées à l'équerre. L'aile 13b se trouve disposée immédiatement au-dessus du bossage central 8a de la coiffe usuelle 8b qui recouvre le percuteur 8, tandis que la partie 13c forme appui pour le bouton d'actionnement 12, sollicité par des moyens élastique 12a incorporés au micro-interrupteur 9.As particularly visible in fig. 2, the support 10 is largely hollowed out and supports in its notch a fixed transverse axis 14 on which the lever 13 is mounted for the latter 13. The latter, provided with two wings 13a and 13b oriented perpendicularly to one another, is profiled in its central part to present two ranges 13c and 13d, themselves oriented square. The wing 13b is located immediately above the central boss 8a of the usual cap 8b which covers the striker 8, while the part 13c forms a support for the actuation button 12, urged by elastic means 12a incorporated into the microphone -switch 9.

Lorsque la cartouche est parcourue par un courant électrique d'intensité inférieure à celle nominale, les pièces se trouvent à la position d'attente illustrée en fig. 2. Le levier 13, dont le profil est tel qu'il se trouve substantiellement équilibré sur son axe 14, est retenu à cette position par la friction résultant de la pression exercée par le bouton 12 contre la portée 13c ; la portée 13d est en appui contre une traverse 10a du support 10. Si l'on redoute l'effet des vibrations susceptibles d'être imparties à la cartouche, on peut améliorer cette retenue soit en prévoyant un relief ou dent 13e en bout de la portée 13c, soit en décalant l'axe 14 par rapport à l'axe vertical du bouton d'actionnement 12.When the cartridge is traversed by an electric current of intensity lower than that nominal, the parts are in the standby position illustrated in fig. 2. The lever 13, whose profile is such that it is substantially balanced on its axis 14, is retained in this position by the friction resulting from the pressure exerted by the button 12 against the bearing 13c; the bearing 13d is in abutment against a cross member 10a of the support 10. If one dreads the effect of the vibrations likely to be imparted to the cartridge, one can improve this retention either by providing a relief or tooth 13e at the end of the range 13c, or by shifting the axis 14 relative to the vertical axis of the actuation button 12.

La libération du percuteur 8 sous l'effet de la fusion simultanée de la lame fusible 5 et du fil de retenue 6 provoque le déplacement du percuteur 8 sous l'action de son ressort 7 et un effet de poussée contre l'aile 13b du levier 13, lequel bascule à la manière illustrée en fig. 3, jusqu'à venir affecter la position de signalisation représentée en fig. 4. Le bouton 12 coulisse vers le bas sous l'effet de son ressort 12a, de sorte que le micro-interrupteur 9 commande la circuit d'alarme branché sur ses bornes 9a.The release of the striker 8 under the effect of the simultaneous fusion of the fusible blade 5 and the retaining wire 6 causes the striker 8 to move under the action of its spring 7 and a pushing effect against the wing 13b of the lever 13, which switches in the manner illustrated in FIG. 3, until it affects the signaling position shown in fig. 4. The button 12 slides down under the effect of its spring 12a, so that the microswitch 9 controls the alarm circuit connected to its terminals 9a.

Cette position est parfaitement stable, et ce même si l'on suppose que, pour une raison quelconque, le bossage 8ade la coiffe 8bdu percuteur 8 vient à cesser son action de poussée contre l'aile 13b. En effet le bouton 12, sollicité par son ressort 12a, exerce son action contre une rampe profilée 13f prévue sur le levier 13 entre les portées 13c et 13d, de sorte qu'en tout état de cause ledit levier est maintenu appliqué contre un appui 1 Ob ménagé à cet effet dans le support 10.This position is perfectly stable, even if it is assumed that, for some reason, the boss 8ade the cap 8bdu striker 8 comes to stop its pushing action against the wing 13b. Indeed the button 12, biased by its spring 12a, exerts its action against a profiled ramp 13f provided on the lever 13 between the ranges 13c and 13d, so that in any event said lever is kept applied against a support 1 O b provided for this purpose in the support 10.

Il convient d'observer qu'en plus du circuit électrique d'alarme ainsi mis en état de marche, le fonctionnement de la cartouche est rendu visible extérieurement, du fait que l'aile 13a du levier 13 a quitté la position suivant fig. 2 pour laquelle elle était appliquée contre la paroi du micro-interrupteur 9, pour affecter la position oblique en saillie illustrée en fig. 4.It should be observed that in addition to the electric alarm circuit thus put into working order, the operation of the cartridge is made visible externally, owing to the fact that the wing 13a of the lever 13 has left the position according to FIG. 2 for which it was applied against the wall of the microswitch 9, to affect the projecting oblique position illustrated in FIG. 4.

On comprend en tout état de cause que le mécanisme intérieur du micro-interrupteur 9 peut être absolument quelconque, notamment du type bistable, puisque c'est le levier intermédiaire ou came 13 qui confère au bouton d'actionnement 12 deux positions parfaitement stables.It is understood in any event that the internal mechanism of the microswitch 9 can be absolutely arbitrary, in particular of the bistable type, since it is the intermediate lever or cam 13 which gives the actuation button 12 two perfectly stable positions.

Il va de soi que pour le réarmement du micro-interrupteur 9 après remplacement de la cartouche fusible, il suffit de manoeuvrer manuellement le levier 13 pour le faire passer de la position de fig. 4 à celle suivant fig. 2.It goes without saying that for resetting the microswitch 9 after replacing the fuse cartridge, it suffices to manually maneuver the lever 13 to move it from the position of FIG. 4 to that according to fig. 2.

On conçoit en particulier que le levier 13 peut être prévu suffisamment large pour assurer à lui seul l'actionnement de deux micro-interrupteurs 9, montés côte à côte sur le support isolant 10.It will be appreciated in particular that the lever 13 can be provided sufficiently wide to ensure the actuation of two microswitches 9, mounted side by side on the insulating support 10.

Claims (4)

1. Cartouche à fusibles, du genre comprenant d'une part un percuteur (8) retenu à l'encontre de moyens élastiques (7) par un fil conducteur (6) branché entre les têtes de connexion (2) en parallèle avec au moins un élément fusible (5) de manière à fondre avec ce dernier sous l'effet d'une surintensité accidentelle, d'autre part un micro-interrupteur (9) dont le bouton (12) est destiné à être actionné par ledit percuteur pour alimenter un circuit d'alarme en cas de fusion de l'élément (5), caractérisée en ce qu'entre le bouton (12) et le percuteur (8) est interposé un levier basculant (13) profilé à la manière d'une came afin de conférer au micro-interrupteur (9) deux positions stables de fonctionnement, quel que soit son mécanisme intérieur.1. Fuse cartridge, of the type comprising on the one hand a striker (8) retained against elastic means (7) by a conductive wire (6) connected between the connection heads (2) in parallel with at least a fuse element (5) so as to melt with the latter under the effect of an accidental overcurrent, on the other hand a microswitch (9) whose button (12) is intended to be actuated by said striker to supply an alarm circuit in the event of a melting of the element (5), characterized in that between the button (12) and the striker (8) is interposed a rocking lever (13) profiled in the manner of a cam in order to give the microswitch (9) two stable operating positions, whatever its internal mechanism. 2. Cartouche suivant la revendication 1, caractérisée en ce que le levier (13) comporte deux portées (13c et 13d) orientées à 90° l'une par rapport à l'autre et agencées de manière à former appuis l'une (13c) pour le bouton (12) à la position d'attente, l'autre (13d) contre une traverse fixe (10a) en vue de limiter le déplacement angulaire dudit levier et de définir ainsi la position d'attente, ces deux portées étant réunies l'une à l'autre par une rampe (13f) formant appui pour le bouton (12) lorsque le levier a basculé en position de signalisation.2. Cartridge according to claim 1, characterized in that the lever (13) has two bearing surfaces (13c and 13d) oriented at 90 ° relative to each other and arranged so as to form supports one (13c ) for the button (12) in the standby position, the other (13d) against a fixed crosspiece (10a) in order to limit the angular displacement of said lever and thus define the standby position, these two bearing surfaces being joined to each other by a ramp (13f) forming support for the button (12) when the lever has switched to the signaling position. 3. Cartouche suivant la revendication 2, caractérisée en ce qu'entre la rampe (13f) et l'extrémité correspondante de la portée (13c), le levier (13) présente un relief ou dent (13e) apte à assurer une meilleure retenue dudit levier à la position d'attente.3. Cartridge according to claim 2, characterized in that between the ramp (13f) and the corresponding end of the seat (13c), the lever (13) has a relief or tooth (13e) capable of ensuring better retention from said lever to the standby position. 4. Cartouche suivant l'une quelconque des revendications 1 à 3, caractérisée en ce que le levier (13) comporte deux ailes opposées dont l'une (13b) est conformée pour recevoir l'action du percuteur (8) tandis que l'autre (13a) forme organe de signalisation assurant la visualisation de l'état de l'élément fusible (5).4. Cartridge according to any one of claims 1 to 3, characterized in that the lever (13) has two opposite wings, one of which (13b) is shaped to receive the action of the striker (8) while the other (13a) forms a signaling device ensuring the visualization of the state of the fuse element (5).
EP92420469A 1991-12-19 1992-12-18 Cartridge fuse with operation indicator Expired - Lifetime EP0547985B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9116143A FR2685544B1 (en) 1991-12-19 1991-12-19 OPERATION INDICATOR TYPE FUSE CARTRIDGE.
FR9116143 1991-12-19

Publications (2)

Publication Number Publication Date
EP0547985A1 true EP0547985A1 (en) 1993-06-23
EP0547985B1 EP0547985B1 (en) 1997-04-02

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EP92420469A Expired - Lifetime EP0547985B1 (en) 1991-12-19 1992-12-18 Cartridge fuse with operation indicator

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US (1) US5260679A (en)
EP (1) EP0547985B1 (en)
AT (1) ATE151197T1 (en)
DE (1) DE69218740T2 (en)
DK (1) DK0547985T3 (en)
ES (1) ES2101068T3 (en)
FR (1) FR2685544B1 (en)

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FR2740903A1 (en) * 1995-11-08 1997-05-09 Ferraz OPERATING INDICATOR TYPE FUSE CARTRIDGE
WO2013038213A3 (en) * 2011-09-17 2013-05-10 Kopcic Nikola Indicator assembly for remote electrical signalling of fuse element status of low voltage hrc fuse links
EP4099358A1 (en) * 2021-06-01 2022-12-07 SALTEK s.r.o. Overcurrent protection device, particularly for the protection of surge arresters

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US5657002A (en) * 1995-12-27 1997-08-12 Electrodynamics, Inc. Resettable latching indicator
US6696969B2 (en) * 2000-06-30 2004-02-24 Cooper Technologies, Inc. Compact fused disconnect switch
DE10039996A1 (en) * 2000-08-11 2002-02-28 Weber Control B V Handgrip for LV high power fuse has mechanical display device for indicating fuse operating condition by its position relative to outer surface of handgrip
US6784783B2 (en) 2000-10-24 2004-08-31 Cooper Technologies Company Compact fused disconnect switch
AU2002235947A1 (en) * 2002-02-15 2003-09-04 Grupo Ormazabal, S.A. Transmission system for tripping a fuse holder
FI116331B (en) * 2004-02-03 2005-10-31 Abb Oy fuse holder
JP4861737B2 (en) * 2006-03-30 2012-01-25 東芝三菱電機産業システム株式会社 Power converter
HRP20100161A2 (en) * 2010-03-18 2011-09-30 Kopčić Nikola Condition indicator of melting part of cartridge of low-voltage highly-effective fuses
DE102016208578A1 (en) * 2016-05-19 2017-11-23 Siemens Aktiengesellschaft Protective device with a fuse and method for electrical monitoring and signaling the triggering of a protective device, in particular a fuse
WO2023230161A1 (en) * 2022-05-26 2023-11-30 Hubbell Incorporated Compact recloser

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DE7528974U (en) * 1975-09-12 1976-01-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen Low-voltage, high-performance fuse with a display device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1377588A (en) * 1963-09-27 1964-11-06 Ferraz & Cie Lucien Improvements to fuse-holder cartridges with remote signaling device
FR1560404A (en) * 1966-12-26 1969-03-21
DE7528974U (en) * 1975-09-12 1976-01-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen Low-voltage, high-performance fuse with a display device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2740903A1 (en) * 1995-11-08 1997-05-09 Ferraz OPERATING INDICATOR TYPE FUSE CARTRIDGE
EP0773573A1 (en) * 1995-11-08 1997-05-14 Ferraz Cartridge fuse with operation indicator
WO2013038213A3 (en) * 2011-09-17 2013-05-10 Kopcic Nikola Indicator assembly for remote electrical signalling of fuse element status of low voltage hrc fuse links
EP4099358A1 (en) * 2021-06-01 2022-12-07 SALTEK s.r.o. Overcurrent protection device, particularly for the protection of surge arresters

Also Published As

Publication number Publication date
US5260679A (en) 1993-11-09
ES2101068T3 (en) 1997-07-01
ATE151197T1 (en) 1997-04-15
FR2685544B1 (en) 1994-04-01
DE69218740T2 (en) 1997-07-10
EP0547985B1 (en) 1997-04-02
DE69218740D1 (en) 1997-05-07
DK0547985T3 (en) 1997-09-29
FR2685544A1 (en) 1993-06-25

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