EP0028958A1 - Schutzschalter, sein Auslösemechanismus - Google Patents

Schutzschalter, sein Auslösemechanismus Download PDF

Info

Publication number
EP0028958A1
EP0028958A1 EP80401516A EP80401516A EP0028958A1 EP 0028958 A1 EP0028958 A1 EP 0028958A1 EP 80401516 A EP80401516 A EP 80401516A EP 80401516 A EP80401516 A EP 80401516A EP 0028958 A1 EP0028958 A1 EP 0028958A1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
movable contact
pallet
breaker according
spring
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
EP80401516A
Other languages
English (en)
French (fr)
Other versions
EP0028958B1 (de
Inventor
Norbert Signorelli
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.)
Legrand SA
Original Assignee
Legrand 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 Legrand SA filed Critical Legrand SA
Publication of EP0028958A1 publication Critical patent/EP0028958A1/de
Application granted granted Critical
Publication of EP0028958B1 publication Critical patent/EP0028958B1/de
Expired legal-status Critical Current

Links

Images

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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • 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
    • H01H71/1027—Interconnected mechanisms comprising a bidirectional connecting member actuated by the opening movement of one pole to trip a neighbour pole
    • 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
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms
    • H01H71/405—Combined electrothermal and electromagnetic mechanisms in which a bimetal forms the inductor for the electromagnetic mechanism
    • 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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/58—Manual reset mechanisms which may be also used for manual release actuated by push-button, pull-knob, or slide
    • 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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/505—Latching devices between operating and release mechanism
    • H01H2071/506—Latching devices between operating and release mechanism using balls or rollers in the latching device

Definitions

  • the present invention relates generally to the circuit breakers, whether it is a simple monopolar circuit breaker, or whether it is one of the poles of a multipolar circuit breaker.
  • such a circuit breaker comprises, in a housing, a first contact, which is fixed, a second contact, which is movably mounted between a latching position and a tripping position, and which is biased towards the latter by an opening spring, an engagement and trigger handle, which is movably mounted between an engagement position and a trigger position, and which is biased towards this trigger position by a return spring , a locking mechanism, which is established between the engagement and trigger handle and the housing, and which is capable of disengageably holding said engagement and trigger handle in the engagement position, a hooking mechanism , which is established between the latching and tripping lever and the movable contact, and which comprises two latching members capable of engaging disengageably one with the other for maintaining the movable contact in the latching position, and at least one triggering member, magnetic and / or thermal.
  • the triggering device in question causes the breakage of the latching mechanism, that is to say the release, relative to each other, of the latching members that this mechanism, and this results in the release of the movable contact, which, under the stress of its spring opening, then passes from its engagement position to its trigger position.
  • the fastening members at which the breaking of the fastening mechanism is made up of specific parts, having by themselves no direct action on the movable contact.
  • one of the problems to be solved in the production of a circuit breaker is the obtaining, under a determined volume, of high performance, and in particular of a high breaking capacity, and, for obtaining high performance, requires, among other things, that the opening of the moving contact can be done very quickly, lé - time between the occurrence of a default and the full opening of the moving contact to be in practice in addition to the order of a thousandth of a second.
  • such an acceleration mechanism is usually formed by an electromagnetic circuit traversed by the current to be controlled, the same one which moreover constitutes an electromagnetic triggering member.
  • the present invention generally relates to a provision allowing, at equal or even higher performance, to overcome if desired the implementation of an acceleration mechanism, and also having other advantages.
  • circuit breaker of the kind mentioned above and characterized in that one of the attachment members of its attachment mechanism is an integral part of the opening spring of the movable contact.
  • this opening spring is a torsion spring, one of the end branches of which is engaged with a fixed stop fixed to the housing, and which constitutes a fastening member by the other of its end branches.
  • one of the attachment members is constituted by a part, namely the opening spring, capable by itself of acting directly on the movable contact, without other intermediary .
  • the opening time of the movable contact is advantageously reduced ; as soon as the latching mechanism has broken and the end branch forming the latching member of the opening spring of the movable contact is thus released, this opening spring immediately causes the starting of the movable contact, without a any catch-up.
  • this end branch forming a hooking member and therefore its moment of inertia, are so reduced that they practically do not intervene in the movement of the movable contact and that they therefore introduce no delay. at the start of it.
  • Photographic examination by ultra-fast camera of the triggering process also shows that the bending of which is the object in the engagement position, this end branch forming a hooking member for the opening spring, in particular to ensure the corresponding contact pressure, is recovered, this end branch then returning to its initial rectilinear configuration of rest, only after the movable contact has passed into the tripping position, and in any case only after the arc which started when the moving contact was triggered and the fixed contact left the moving contact.
  • the overall mass of the parts to be moved when triggered is reduced, the speed of movement of this mass, at equal energy, is increased, and therefore, reduces the opening time accordingly of the mobile contact.
  • Such a circuit breaker generally comprises a case 10.
  • this box is formed of two shells 11, 11 ′ of unequal importance which are suitably faced with one another, and which are suitably connected to each other by screws or rivets in place thanks to.passages 12.
  • the shoemaker 10 forms, at its lower part, a fixing sole 13 adapted, in cooperation with an elastic claw 14, to allow attachment thereof to a rail of the type known as a hat 15, as shown schematically in broken lines in Figure 1.
  • the housing 10 laterally contains two connection terminals 16A, 16B, which are accessible from the outside.
  • each of these connection terminals consists of a bracket 17A, 17B, engaged in sliding on a metal strip 18A, 18B, and a screw 19A, 19 B , engaged in screwing on said bracket.
  • the housing 10 contains a first contact 20A, which is fixed, and which, in the embodiment shown, is formed by an extension of the metal strip 1 8 A of the connection terminal 16A, this extension locally carrying this effect a contact pad 21, and, in relation to the latter, a second contact 20B, which is mounted movably between an engagement position, FIGS. 1 and 2, for which it is in abutment against the fixed contact 20A, and a tripping position, FIGS. 11 and 12, for which it is remote from the fixed contact 20A.
  • a first contact 20A which is fixed, and which, in the embodiment shown, is formed by an extension of the metal strip 1 8 A of the connection terminal 16A, this extension locally carrying this effect a contact pad 21, and, in relation to the latter, a second contact 20B, which is mounted movably between an engagement position, FIGS. 1 and 2, for which it is in abutment against the fixed contact 20A, and a tripping position, FIGS. 11 and 12, for which it is remote from the fixed contact 20A.
  • the movable contact 20 B is of relatively small dimensions.
  • the movable contact 20B is rotatably mounted on a support pin 23, which extends transversely in the housing 10, and which, according to one aspect of the invention, is conductive, for electrical connection between this movable contact 20B and the corresponding connection terminal 16B.
  • this support pin 23 is engaged in a retaining flange 24, and, at the other of its ends, it is in continuity with a bent bracket 25, the assembly being formed from a section of round wire suitably bent.
  • bracket 25 On the end of the bracket 25 is fixed, for example by welding, to one end of a bimetallic strip 2 6 which extends longitudinally in the housing 10, one of the connection terminals 16A, 16B to the other, and which, at its other end, is fixed, for example by welding, to a wing 27, folded square for this purpose, of the metal strip 18B of the connection terminal 16B.
  • connection terminal is made successively through the metal strip 1 8B , the bimetallic strip 2 6 , and the section of round wire constituting the bracket 25 and the support axis 23, without any braid capable of hampering the movement of this movable contact 20B.
  • the bimetal-2 6 which forms a thermal trigger member, is fixed at each of its ends, in the manner of a recessed beam.
  • the movable contact 20B is biased towards its tripping position by an opening spring 29.
  • the central torsional part 33 of the opening spring 29 extends generally around the support axis 23 of the movable contact 20B, and the mass of this spring 29 is thus essentially concentrated in the vicinity of this support axis.
  • the middle torsion 33 of the opening spring 29 is split-into two portions.s, namely a first portion 34, which is the largest, and which s 'extends from a first side of the movable contact 20B, in continuity with the fixed end branch 30 of this opening spring 29, and a second portion 34', which is the least important, and which extends from the 'other side of the movable contact 20B, in. continuity with the free end branch 32 of said opening spring 29.
  • the second portion 34 'of the central torsion part 33 of the opening spring 29, that which is in continuity with the free end branch 32 of this spring, is reduced to a fraction of a turn, half of turns for example, as shown.
  • the housing 10 also contains an interlocking and tripping lever 37 which is mounted therein movable between a latching position, FIGS. 1 and 2, and a tripping position, FIG. 11.
  • this interlocking and triggering lever 37 forms a slide with linear displacement, which is mounted movable longitudinally in the housing 10, from one of the connection terminals 16A, 16B to the other.
  • This slide which is hollow, and generally forms a box open laterally and at each of its ends, is engaged on the bimetallic strip 26, at a distance from the latter.
  • the cover 39 On the surface, the cover 39 carries a gripping projection 41, which is accessible from the outside of the housing 10, through a passage 44 provided for this purpose therein.
  • the engagement and trigger lever 37 thus formed is biased towards its trigger position by a return spring 42; it is, in the embodiment shown, a torsion spring, the branches of which are symmetrical to each other, are each respectively in engagement, one with the metal strip 18 B of the connection terminal 16B, by virtue of a drilling thereof, the other with the engagement and tripping lever 37, also by virtue of a drilling thereof, FIG. 7, and of which installation can thus be easily ensured, either manually or automatically.
  • this locking mechanism 43 comprises a free rolling member 45, which consists of a single roller extending transversely in the housing 10, and which is capable of cooperating in locking with a notch 47 with oblique sides formed transversely to the surface of an intermediate floor 46 of this housing 10, integral, in the embodiment shown, with the shell 11 'thereof.
  • This roller 45 is disposed between two shoulders 48, 49 of the engagement and trigger lever 37, formed by means of a slot affecting the sole 38 of the latter.
  • the housing 10 contains another trigger member, which is an electromagnetic trigger member, and which, in the usual manner, is formed by a cylinder head 50 and a pallet 51 pivotally mounted with respect to this cylinder head.
  • the cylinder head 50 and the pallet 51 are housed inside the engagement and trigger lever 37 and are carried by the latter, so that this engagement and trigger lever 37, this cylinder head 50, and this pallet 51 belong jointly to the same mobile assembly.
  • the cylinder head 50 forms longitudinally a gutter, by which it is engaged on the bimetallic strip 26, at a distance from the latter, on the side of this bil # me opposite to the flange 40 of the interlocking and tripping lever 37.
  • the pallet 51 is arranged on the other side of the bimetallic strip 26 vis-à-vis the cylinder head 50, and therefore extends between this bimetallic strip 26 and the flange 40 of the engagement and tripping lever 37.
  • interlocking means are provided between the cylinder head 50 and the pallet 51.
  • the cylinder head 50 and the armature 51 each have, facing each other, a pair of lugs 53, 54, and the interlocking means in question comprise, for each pair of legs 53, 54, a pin 55 which is carried projecting by one of them and which is engaged in a bowl or a hole 56 on the other.
  • the pins 55 thus provided are projecting from the pallet 51 and are formed by simple local stamping thereof; vice versa, these pins 55 can be formed on the cylinder head 50.
  • the interlocking means thus formed have a double function: on the one hand they provide a pivoting mounting of the pallet 51 with respect to the cylinder head 50, perpendicular to the axis of the central torsion part 33 of the spring opening 29, and on the other hand they couple this cylinder head 50 and this pallet 51 longitudinally to one another.
  • the bolt 50 and the pallet 51 are free from any connection with the engagement and trigger lever 37, their tabs 53, 54 being engaged, with, longitudinally, a large clearance, either in a buttonhole or in a notch of the sole 38 of this interlocking and tripping lever 37, and their possible connection with the interlocking and tripping lever 37 being effected by means of the roller 45, as will be detailed later.
  • the cylinder head 50 is fixed with respect to the engagement and disengagement lever 37.
  • the latter is preferably, as shown, adjustable in position.
  • the cylinder head 50 is subjected to a retaining spring 58 which applies it against an adjustable stop 39, and the latter is formed by a screw which is engaged in screwing in a threaded bore 60 of the flange 40 of the interlocking and tripping lever 37 and which crosses with clearance a notch 61 provided for this purpose in the pallet 51, Figures 2, 3 and 7.
  • the retaining spring 58 of the cylinder head 50 is constituted by a pin spring which, by its median zone, bears on a boss 62 of the engagement and tripping lever 37, and which, by one of its wings , relates to the cylinder head 50.
  • this same spring 58 bears on the pallet 51, FIG. 7, and constitutes for the latter a biasing spring urging this pallet 51 in the direction of a determined position, specified below.
  • the biasing spring of this pallet 51 is in one piece with the cylinder head retaining spring 50.
  • the pallet 51 carries transversely, beyond the latching and tripping lever, a screw 63, the barrel 64 of which is engaged in screwing in an insulating sleeve 6 5 itself force-fitted in a passage 66 of the pallet 51, and the head 68 of which is disposed beyond the bimetallic strip 26 vis-à-vis the pallet 51 and is interposed on the deformation path of this bimetallic strip 26 when the latter is the 'subject to heating.
  • the sleeve-65 avoids any short-circuit and also serves as a brake for the screw 63, whose screwing or unscrewing allows the adjustment of the thermal tripping threshold.
  • the cylinder head 50 comprises an oblique ramp 70. formed by means of a notch 71 of this cylinder head, this ramp 70 being disposed on the side of this notch 71 furthest from the movable contact 20B.
  • the pallet 51 has a notch 72 in which it spans game with the roller 4 of 5, but none of the flanks or sides of this recess is intended to cooperate with the latter.
  • the housing 10 also contains a latching mechanism, which is established between the latching and tripping lever 37 and the movable contact 20B, and which comprises two latching members capable of engaging disengageably, one with the other to maintain this movable contact 20 B in the latching position.
  • a latching mechanism which is established between the latching and tripping lever 37 and the movable contact 20B, and which comprises two latching members capable of engaging disengageably, one with the other to maintain this movable contact 20 B in the latching position.
  • one of these attachment members forms an integral part of the opening spring 29 of the movable contact 20B.
  • the other hooking member is constituted by a lug 7 4 which is carried transversely projecting from the pallet 51, at the end of a lug 69 already carrying the screw 63.
  • This lug is in practice formed by a small needle of hard and smooth steel forcibly engaged in a passage 75 of the tab 69 in question.
  • the free end branch 32 of the opening spring 29 is, at its free end, engaged in a guide groove 76.
  • this guide groove is formed in the engagement and trigger handle 37, on the underside of the cover 39 thereof.
  • this end-free branch 32 forming an attachment member is well determined, and it is through this that the determined position of the pallet 51 is defined in the direction of which this pallet 51 is permanently biased by spring 58.
  • the housing 10 comprises, in line with the fixed and mobile contacts 20A, 20B, an arc extinguishing chamber 79; usually, it is equipped with a plurality of deionization plates 80, one of the end plates forming an arc horn 81A and is in connection with the metal strip 1 8 A of the connection terminal 16A, while that the other of said end plates forms an arc horn 81B and is in continuity with the flange 24 in which is engaged the support axis 23 of the movable contact 20B.
  • this arc extinguishing chamber 79 are particularly large, this essentially occupying the internal volume of the housing 10.
  • the end branch forming an attachment member 32 of the opening spring 29 of the movable contact 20B is engaged with the lug 74 of the pallet 51, the roller 45 of g e verrouilla- mechanism is engaged in the notch 47 of the housing 10, the cylinder head 50 covers the roll 45 by the inclined ramp 70 of the notch 71, and, together, the engagement and release lever 37 also carries on this roller 45 by its shoulder 48, FIGS. 1 to 9.
  • the roller 45 is then subjected to a double stress, one due to the cylinder head 50, the other due to the engagement and trigger lever 37.
  • the opening spring 29 acts on the pallet 51, according to the arrow F of FIG. 2, and, by the pins 55, this acts, in the same direction, on the cylinder head 50.
  • This cylinder head 50 being in contact with the roller 45 by its inclined ramp 70, this results, at this level, in the application to the roller 45 of a force F1 of horizontal component F 'l and of vertical component F "1, FIG. 9 .
  • this resultant R 1 is located below the edge A of this locking notch 47 against which the roller 45 rests.
  • the opening spring 29 assumes, in addition to the attachment and the locking described above, a double function: on the one hand, urging by its cross-member 35 the movable contact 20B according to arrow F4 in FIG. 2, it maintains this movable contact 20B against the fixed contact 20A, with all the necessary contact pressure, and on the other hand, it jointly maintains the movable contact 20 B in contact with its support pin 23, for good electrical contact between these two members .
  • the roller 45 is therefore no longer held in the locking notch 47: by displacement along the inclined ramp 70 of the cylinder head 50, it escapes this locking notch 47 and releases the movable assembly formed jointly by the engagement and release lever 37, the cylinder head 50 and the pallet 51, and therefore the opening spring 29.
  • the return to the latching position is done by moving the latching and tripping lever 37 in the opposite direction, according to arrow F5 in FIG. 11.
  • the engagement and trigger lever 37 indeed drives the roller 45, which in turn drives the cylinder head 50, and therefore the pallet 51, the latter being engaged with the cylinder head 50 by its pins 55.
  • the movable contact 20B has come into contact with the fixed contact 20A before the roller 45 enters the locking notch 47.
  • the opening spring 29 still assumes a double function, of penetration and contact pressure.
  • the latter which is engaged with the cylinder head 50 by its pins 55, therefore pivots about a pivot axis which extends substantially perpendicular to the axis of the central torsion part 34 of the opening spring 29 .
  • this opening spring 29 causes without delay or delay the starting of the movable contact 20B in the direction of its tripping position, FIG. 12.
  • the return spring 42 associated with the interlocking and triggering lever 37 which is then the only one acting on it, causes the unlocking of the mobile assembly in the constitution of which it participates, the roller 45 not being more subject to the sole force F2 resulting from this return spring and this compelling it to escape the locking notch 47.
  • the spring 58 brings the pallet 51 back to its determined rest position, for which it bears against the free end branch 32 of the opening spring 29.
  • the circuit breaker can therefore be reset, using the engagement and tripping lever 37, according to the process described above.
  • the opening spring 29, which previously ensured the attachment has the function of developing the opening force necessary for the passage of the movable contact 20B from its latching position to its position of trigger.
  • the adjustment of the threshold, or magnetic trigger current, in which this magnetic trigger intervenes is done by action on the screw 59 which determines the position of the yoke 50 of the magnetic trigger member corresponding.
  • the adjustment of the circuit breaker rating is therefore done by simply varying the air gap of its magnetic trip member, which allows with the same parts, very simply to produce a full range of circuit breakers of different ratings, in a range which can easily extend, for example from 10 to 40 amps.
  • the bimetallic strip 26 causes the breaking of the attachment previously assured between the lug 7 4 of this pallet 51 and the free end branch 32 of the opening spring 29, and therefore, according to the process described above, the transition to the tripping position of the assembly.
  • the setting of the threshold value, or thermal trip current. corresponding, is carried out by acting on the screw 64, to allow the variation of desirable distances between the head 68 of this screw and the bimetallic strip 26.
  • circuit breaker concerned has been assumed to be monopolar.
  • circuit breakers can be associated with each other, for the constitution of poles of a multipole assembly.
  • Each of the poles of the multipole circuit breaker thus formed is similar to that described above.
  • each of these poles further comprises, longitudinally, a zipper 99, and, on the other hand, transversely, it is associated with them,.
  • a common slide 100 As a whole, a common slide 100.
  • the pull tab 99 has two shoulders 101, 102 by which it frames the free end branch 32, forming a member for hooking the opening spring 29, and, at its other end, it carries a lug 103.
  • the slider 100 which extends transversely from poles to poles by crossing the housings 10 thereof by means of windows 105 provided for this purpose therein, has, for each of these poles, on two opposite edges, two inclined ramps, one, 106, for action of the lug 103 of the corresponding pull tab 99, the other, 107, for action on the pallet 51 of this pole.
  • the slide 100 then acts on the pallets 51 of the set of poles and therefore causes the tripping of those which are still in the latching position.
  • each opening spring 29 causes, by its free end branch 32, which comes to bear on the shoulder 101 of the corresponding pull tab 99, the return to its initial position, and the pallets 51 also cause, by action on the inclined ramps 107 of the slide 100, the return to the initial position of this one.
  • the bimetallic strip constitutes the conductor passing through the electromagnetic tripping member
  • another conductor may be substituted for it, in particular when several passages of such a conductor are necessary.
  • this bimetallic strip constituting directly by itself the conductor of the thermal trip member subjected to heating, it may be substituted for it a calibrated conductor indirectly heating such a bimetallic strip.
  • the opening spring advantageously ensures by itself, as will have been noted, a multiplicity of functions, and, in particular, by its elastic branch of bending, the elastic return of the member d 'hooking that constitutes this branch, and the opening of the movable contact.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
EP19800401516 1979-10-26 1980-10-24 Schutzschalter, sein Auslösemechanismus Expired EP0028958B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7926588 1979-10-26
FR7926588A FR2468991A1 (fr) 1979-10-26 1979-10-26 Disjoncteur et son mecanisme d'accrochage

Publications (2)

Publication Number Publication Date
EP0028958A1 true EP0028958A1 (de) 1981-05-20
EP0028958B1 EP0028958B1 (de) 1983-11-09

Family

ID=9231070

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800401516 Expired EP0028958B1 (de) 1979-10-26 1980-10-24 Schutzschalter, sein Auslösemechanismus

Country Status (3)

Country Link
EP (1) EP0028958B1 (de)
DE (1) DE3065550D1 (de)
FR (1) FR2468991A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0144799A2 (de) * 1983-11-24 1985-06-19 BROWN, BOVERI & CIE Aktiengesellschaft Leitungsschutzschalter
FR2563375A1 (fr) * 1984-04-24 1985-10-25 Legrand Sa Disjoncteur a fonction differentielle
FR2587829A1 (fr) * 1985-09-20 1987-03-27 Telemecanique Electrique Interrupteur de protection a biellette elastique
FR2598254A1 (fr) * 1986-05-05 1987-11-06 Legrand Sa Appareillage electrique a contact mobile flottant, en particulier disjoncteur.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1105968B (de) * 1960-04-14 1961-05-04 Continental Elektro Ind Ag Schaltvorrichtung fuer elektrische Selbstschalter
FR2337414A1 (fr) * 1975-12-29 1977-07-29 Ellenberger & Poensgen Interrupteur levier de commande basculant
US4092623A (en) * 1976-07-21 1978-05-30 Mechanical Products Circuit breaker
FR2417177A1 (fr) * 1978-02-10 1979-09-07 Legrand Sa Mecanisme d'accrochage et disjoncteur comportant un tel mecanisme
FR2420839A1 (fr) * 1978-03-22 1979-10-19 Legrand Sa Disjoncteur, son mecanisme de declenchement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1105968B (de) * 1960-04-14 1961-05-04 Continental Elektro Ind Ag Schaltvorrichtung fuer elektrische Selbstschalter
FR2337414A1 (fr) * 1975-12-29 1977-07-29 Ellenberger & Poensgen Interrupteur levier de commande basculant
US4092623A (en) * 1976-07-21 1978-05-30 Mechanical Products Circuit breaker
FR2417177A1 (fr) * 1978-02-10 1979-09-07 Legrand Sa Mecanisme d'accrochage et disjoncteur comportant un tel mecanisme
FR2420839A1 (fr) * 1978-03-22 1979-10-19 Legrand Sa Disjoncteur, son mecanisme de declenchement

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0144799A2 (de) * 1983-11-24 1985-06-19 BROWN, BOVERI & CIE Aktiengesellschaft Leitungsschutzschalter
EP0144799A3 (en) * 1983-11-24 1985-07-10 Brown, Boveri & Cie Aktiengesellschaft Electric switch
FR2563375A1 (fr) * 1984-04-24 1985-10-25 Legrand Sa Disjoncteur a fonction differentielle
EP0161968A1 (de) * 1984-04-24 1985-11-21 Legrand Schalter mit Differentialfunktion
FR2587829A1 (fr) * 1985-09-20 1987-03-27 Telemecanique Electrique Interrupteur de protection a biellette elastique
EP0218497A1 (de) * 1985-09-20 1987-04-15 Telemecanique Schutzschalter mit federnder Lasche
FR2598254A1 (fr) * 1986-05-05 1987-11-06 Legrand Sa Appareillage electrique a contact mobile flottant, en particulier disjoncteur.

Also Published As

Publication number Publication date
EP0028958B1 (de) 1983-11-09
FR2468991A1 (fr) 1981-05-08
DE3065550D1 (en) 1983-12-15
FR2468991B1 (de) 1981-11-13

Similar Documents

Publication Publication Date Title
EP0486389B1 (de) Schutzschalter
EP0179677B1 (de) Schaltvorrichtung mit variabler Zusammensetzung
EP0570647B1 (de) Schaltschloss für Schutzschalter und Schutzschalter, mit diesem integriert
EP0848404B1 (de) Selektives Auslöseblock für Mehrpoliger Leistungsschalter
FR2495825A1 (fr) Disjoncteur multipolaire synchronise, constitue par plusieurs ensembles et comprenant une tige de liaison mutuelle
EP2333805B1 (de) Ferngesteuerte Unterbrechungsvorrichtung, und mit dieser Unterbrechungsvorrichtung ausgestattete Stromverteilungsvorrichtung
EP0161120A1 (de) Anordnung zur Lastunterbrechung und sichtbaren Trennung eines elektrischen Stromkreises
BE1004514A3 (fr) Appareil interrupteur a contacts commandables par un electroaimant.
EP0028958B1 (de) Schutzschalter, sein Auslösemechanismus
CH686853A5 (fr) Appareil interrupteur de protection accouplable à un module de commande et/ou à un module de signalisation.
FR2686453A1 (fr) Interrupteur differentiel.
EP0013642A1 (de) Strombegrenzender Selbstschalter für Niederspannung
EP0325501B1 (de) Automatische Schalter, insbesondere Differential- und Schutzschaltern
EP0004508B1 (de) Selbstschalter mit einem, elastischen Rückstellmitteln unterworfenen beweglichen Verriegelungsteil
FR2614467A1 (fr) Appareil interrupteur de protection a mecanisme de declenchement simplifie
EP0193440B1 (de) Schutzschalter
FR2777110A1 (fr) Disjoncteur differentiel multipolaire
EP2333804B1 (de) Schalvorrichtung mit einer Kontaktverschweissungsanzeige
EP0310469B1 (de) Schutzschalter mit Blende zum Unterbrechen des Lichtbogens
EP0130208B1 (de) Schalter mit bedientem öffnen und schliessen und mit automatischer öffnung im fall eines überstromes
EP0072285B1 (de) Vorrichtung zum Öffnen von beweglichen Kontakten von Schaltern zum Begrenzen von Kurzschlussströmen
FR2628261A1 (fr) Disjoncteur a mecanisme a franchissement de point mort
EP0054499B1 (de) Schalter mit Trennung des Nulleiters
EP0008558A1 (de) Selbstschalter mit beweglichem, auf einem beweglichen Rastelement schwenkbar gelagertem, Kontakthebel
FR2600210A1 (fr) Disjoncteur a deux circuits de commutation dont l'un est protege

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE DE GB IT NL

ITCL It: translation for ep claims filed

Representative=s name: JACOBACCI CASETTA & PERANI S.P.A.

17P Request for examination filed

Effective date: 19810701

DET De: translation of patent claims
ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE DE GB IT NL

REF Corresponds to:

Ref document number: 3065550

Country of ref document: DE

Date of ref document: 19831215

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19841231

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19871031

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19881013

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19891024

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19891031

BERE Be: lapsed

Owner name: LEGRAND S.A.

Effective date: 19891031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19900501

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19900703