EP0948021B1 - Disjoncteur différentiel multipolaire - Google Patents

Disjoncteur différentiel multipolaire Download PDF

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Publication number
EP0948021B1
EP0948021B1 EP99400774A EP99400774A EP0948021B1 EP 0948021 B1 EP0948021 B1 EP 0948021B1 EP 99400774 A EP99400774 A EP 99400774A EP 99400774 A EP99400774 A EP 99400774A EP 0948021 B1 EP0948021 B1 EP 0948021B1
Authority
EP
European Patent Office
Prior art keywords
compartments
break
circuit breaker
balanced
multipolar
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.)
Expired - Lifetime
Application number
EP99400774A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0948021A1 (fr
Inventor
Alain Simond
Jean-Luc Evrard
Patrick Lenco
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 SNC
Legrand France SA
Original Assignee
Legrand SA
Legrand SNC
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, Legrand SNC filed Critical Legrand SA
Publication of EP0948021A1 publication Critical patent/EP0948021A1/fr
Application granted granted Critical
Publication of EP0948021B1 publication Critical patent/EP0948021B1/fr
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
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
    • H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with differential transformer
    • 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
    • H01H71/1009—Interconnected mechanisms
    • H01H2071/1036—Interconnected mechanisms having provisions for four or more poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • 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
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • 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
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures

Definitions

  • the present invention relates generally to multipole differential circuit breakers.
  • these multipolar differential circuit breakers comprise, on the one hand, a certain number of breaking compartments, on a per pole basis, and, on the other hand, for all of these breaking compartments, a compartment of differential protection.
  • It can for example be as bipolar differential circuit breakers as four-pole differential circuit breakers.
  • Each of the breaking compartments is associated with an input terminal and an output terminal, intervening therebetween with switch contacts, at least one of which is movable under the control of a mechanism commonly known as a "lock”. ".
  • this mechanism is itself under the control of at least one triggering member, such as for example a magnetic triggering member and / or a triggering member. thermal tripping, able to cause if necessary a command in opening of the switch contacts.
  • the pole is a neutral
  • a neutral which is for example the case when, in the case of a four-pole differential circuit breaker, such a neutral is associated with three phases, no triggering element is usually provided for, the corresponding mechanism being then simply under the control of the mechanism of any of the phases.
  • the differential protection compartment is equipped with a fault detector capable of delivering a differential current in response.
  • a fault capable of delivering a differential current in response.
  • a sensitive relay served by the fault detector
  • a mechanism also commonly called “lock”, able to intervene in tripping on the mechanism of at least one of the breaking compartments.
  • the present invention is more particularly the case where the multipole differential circuit breaker concerned is what is called a modular device.
  • the housing of such a modular device comprises, parallel to each other, two main faces, and its width, equal to the distance separating from one another these main faces, is a multiple of a given basic module common to all modular devices of the same type.
  • the breaking compartments are usually arranged parallel to each other, and they all have the same width equal to the basic module.
  • the differential protection compartment also extends most often to date parallel to the breaking compartments, being in practice attached to them at one or the other end of the alignment they form, and its width is, it, equal to three times the basic module.
  • the overall width of a four-pole differential circuit breaker for example is most often equal to seven times the basic module.
  • each of the breaking compartments remains equal to the basic module, and the differential protection compartment is distributed longitudinally between these breaking compartments, all happening as if the volume available inside the housing was shared. in two in a plane perpendicular to both the main faces of this housing and its attachment face, a portion of this volume being fragmented transversely between the various breaking compartments while the other is occupied longitudinally by the differential protection compartment .
  • the axis of the magnetic tripping member of each of the breaking compartments extends, in practice, and almost necessarily perpendicular to the fixing face of the housing, and the grip of this organ magnetic tripping being greater along this axis than transversely thereto, the available volume along the same axis for the arc extinguishing chamber usually associated with the switch contacts is reduced accordingly, to the detriment of the power cut.
  • differential protection compartment extends longitudinally over the entire width of the housing, transversely relative to the breaking compartments, the electrical connections to be provided between the many internal components of these various compartments are particularly complicated and difficult to achieve.
  • the present invention generally relates to an arrangement which, while leading to comparable compactness, advantageously avoids these disadvantages.
  • a multipolar differential circuit breaker of the kind comprising, in the same housing of width L equal to a multiple n of a basic module M, on the one hand, an even number n 1 of compartments of cutoff of the same width l 1 , all of which extend parallel to each other, and to each of which are associated an input terminal and an output terminal, and, secondly, a differential protection compartment,
  • the party is taken, according to the invention, to reduce the width of the breaking compartments to a fraction of the basic module.
  • the arrangement according to the invention also advantageously makes it possible, for at least some of the constituents to be used, to take advantage economically of embodiments already known and tested in the same field.
  • the mechanism of the cutoff compartments that is to say the "lock” of these, can advantageously be of the type of the one , for a bipolar phase neutral circuit breaker of width equal to the basic module, was the subject of the French patent filed on August 4, 1994 under No. 94 09691 and published under No. 2,723,470.
  • the mechanism of the differential protection compartment may advantageously be of the type which, for a neutral phase differential release device of overall width equal to twice the basic module, was the subject of the French patent filed May 31, 1994 under No. 94 06585 and published under No. 2,720,548.
  • the axis of the magnetic tripping member of the cutoff compartments can advantageously extend parallel to the fixing face of the housing, to the benefit of the available space for the arc extinguishing chamber to the right of this magnetic tripping member, and therefore to the benefit of the breaking capacity.
  • the coupling winding for the differential protection compartment is inserted between the input terminal and the magnetic trip.
  • the available volume downstream of the magnetic tripping member can advantageously be used full for the only arc extinguishing chamber, to the benefit, again, of the breaking capacity.
  • the coupling winding to the differential protection compartment is connected to the magnetic tripping member by a return section, which is parallel to the the axis of this magnetic tripping member, and which, for all the cutoff compartments, extends to the same level.
  • US 5,510,759 shows a device according to the preamble of claim 1.
  • a multipole differential circuit breaker 10, 10 ' according to the invention comprises, in the same case, in the same housing 11, 11' of width L equal to a multiple n of one base module M, on the one hand, an even number n 1 of cutoff compartments 12 of the same width l 1 , all of which extend parallel to each other, and to each of which are associated an input terminal 13E and an output terminal 13S, and, on the other hand, a differential protection compartment 15.
  • this multipolar differential circuit breaker 10, 10 ' is of the modular type.
  • its housing 11, 11 comprises, parallel to each other, two main faces 17, between which is measured its width L.
  • the multipole differential circuit breaker 10, 10 'according to the invention is intended to be attached to a support rail, not shown.
  • Its housing 11, 1 1 comprises, for this purpose, on its edge, that is to say perpendicular to its main faces 17, an attachment face 18, which, for example, and as visible in Figure 1 , comprises, in its middle part, a notch 19, by which it is adapted to be engaged on the support rail concerned, and by means of which intervene, for a snap on this support rail, one or more movable latches 20 .
  • the housing 11, 11 comprises, on its edge, in addition to its attachment face 18, on the one hand, two lateral faces 21E, 21S, which are perpendicular both to this fixing face 18 and to the main faces 17, and on which open, respectively, the input terminals 13E and the output terminals 13S, for the wiring of the cutoff compartments 12, and, on the other hand, a front face 22, which extends generally parallel to the fixing face 18, with, however, protruding in its central part, a boss 24 on which is pivotally mounted an operating lever 25 at the disposal of the user, and from which are accessible , for their tightening or loosening, the input terminals 13E and the output terminals 13S.
  • the cutoff compartments 12 extend from one of the lateral faces 21E, 21S to the other, parallel to the main faces 17.
  • the input terminals 13E, which are all aligned with each other, on the one hand, and, in correspondence therewith, the output terminals 13S, which are also all aligned with each other, with each other, on the other hand, are distributed at a regular pitch equal to the basic module M from one to the other of the main faces 17, so that, perpendicular to these main faces 17, they are all offset relative to the breaking compartment 12 to which they are respectively associated.
  • those of these input terminals 13E or 13S output which are at the ends of the corresponding alignments are at a distance from the main faces 17 of the housing 11, 11 'equal to half of the base module M.
  • the input terminals 13E and the output terminals 13S have been schematized, in particular, by their clamping and loosening axis A 1 , and, for the sake of simplicity, it is relative to to this axis of clamping and loosening A 1 , itself simply materialized by its trace in this Figure 2, was appreciated their implementation.
  • the multipole differential circuit breaker according to the invention is, for example, a four-pole differential circuit breaker 10.
  • the number n 1 of cutoff compartments 12 that it comprises is equal to four.
  • the width l 2 of the differential protection compartment 15 is equal to twice the width l 1 of the breaking compartments 12.
  • the cutoff compartments 12 are, in this case, grouped together in pairs P, P ', at the rate of a pair P of two cutoff compartments 12 of a first side of the differential protection compartment 15, and a pair P 'of two switching compartments 1 2 on the side of this differential protection compartment 15 opposite the previous one, so that the differential protection compartment 15 occupies the central part of the interior volume of the housing 11 while the switching compartments 12 occupy the side parts of this interior volume.
  • the internal organization of the four-pole differential circuit breaker 10 according to the invention is then advantageously symmetrical, and the offset of the input terminals 13E and 13S output relative to the switching compartment 12 with which they are associated, which is all the more important that this breaking compartment 12 is remote from the differential protection compartment 15, is advantageously minimized.
  • the number n is then equal to four.
  • All the cleavage compartments 12 have generally the same constitution.
  • this mechanism 35 is itself under the control of the operating lever 25 at the disposal of the user.
  • a coupling winding 36 is also provided for each of the breaking compartments 12, which is also inserted between their input terminal 13E and their output terminal 13S, and which intervenes in the differential protection compartment 15.
  • these input terminals 13E and 13S output terminals also comprise a moving part 38E, 38S, in the form of a stirrup, for clamping an electric cable.
  • the magnetic tripping member 30 comprises a winding 40 arranged around a core 41, for the control of a striker 42 able to act on the mechanism 35.
  • the axis A 2 of this magnetic trigger member 30, that is to say the axis A 2 in which its striker 42 acts, extends parallel to both the main faces 17 of the housing 11 as well as the attachment face 18 thereof.
  • this arc extinguishing chamber 43 extends between the magnetic tripping member 30 and the fixing face 18 of the housing 11.
  • Its input plate 44 belongs to the support 45 of the magnetic tripping member 30, and its output plate 46 belongs to a metal part 47 to which also belongs the fixed part 37S of the output terminal 13S.
  • This metal part 47 serves jointly to support the thermal tripping member 33, which is in this case a bimetallic strip, and, by a braid 48, this thermal tripping member 33 is connected to the movable contact 32.
  • the winding 40 of the magnetic tripping member 30 is formed by a wire of rectangular cross section whose largest dimension is parallel to the axis A 2 of this magnetic tripping member 30, FIG.
  • the mechanism 35 is of the type described in the patent. No. 94 06585 already mentioned above, and in this regard, the latter may be considered an integral part of this description.
  • each of the cutoff compartments 12 comprises, overall, a contact support 49, 49 ', which is rotatably mounted around a axis A 3 fixed relative to the housing 11, and on which the movable contact 32 is itself rotatably mounted around the same axis A 3 , a fastening piece 50, 50 ', which is also rotatably mounted around this A fixed axis A 3 , and an actuator 52, 52 ', which, via the operating lever 25, is available to the user, according to the arrangements described in more detail later, and which, by via a linkage 53, 53 ', also detailed later, and under the control of the attachment piece 50, 50', is adapted to move the contact support 49, 49 'from a trigger position , for which the movable contact 32 is in the open position, at a distance from the fixed contact 31, and a posi switching engagement, for which, in contrast, this movable contact 32 is in the
  • the fixed axis A 3 fixed to the movable contact 32, to the contact support 49, 49 ', and to the attachment piece 50, 50' extends transversely, depending on the width of the cutoff compartment 12 concerned. .
  • the two cutoff compartments 12 of the same pair P, P ' have in common one and the same contact support 49, 49', the same attachment piece 50, 50 ', and the same operating member 52, 52 '.
  • the contact support 49, 49 ' common to the two switching compartments 12 of the same pair P, P' form, with the corresponding movable contacts 32, the organs elastic members 55 associated with these movable contacts 32, and the attachment piece 50, 50 ', a unitary subassembly 56, 56'.
  • Such a unitary subassembly 56 is shown, in isolation, in FIGS. 8 and 9, for the pair P of cutoff compartments 12.
  • the fastening piece 50, 50 'of the subassemblies unit assemblies 56, 56 ' comprises, in particular, an attachment nose 57, for the intervention of the linkage 53, 53', an insulating wall 58, for the intervention of the striker 42 of one or on the other of the two magnetic triggering members 30 concerned, lugs 59, for the intervention of one or the other of the two thermal release members 33 also concerned, and parallel to the fixed axis A 3 , an arm 60, which is perforated axially with a bore 61, and which, as will be described later, is used here for the intervention of the differential protection compartment 15.
  • the operating member 52, 52 'associated with the two cutoff compartments 12 of the same pair P, P' comprising, in the housing 11, a hub 62, 62 'by which it is rotatably mounted on this housing 11, the two hubs 62, 62 'corresponding respectively to two pairs P, P' of cutoff compartments 12 are set in rotation relative to each other.
  • these two hubs 62, 62 ' are aligned with each other, with interlocking means 63, 63' between them.
  • the hub 62 ' comprises a section of reduced diameter 64 through which it is able to engage in a bore 65 of the hub 62, and the clutching means 63, 63' are formed, on the one hand, by two recesses 63, which are recessed on the inner surface of the bore 65 of the hub 62 in diametrically opposite positions with respect to each other, and, on the other hand, by two bosses 63 ', which, complementary to the clearances 63, and arranged in correspondence therewith, protrude over the reduced diameter section 64 of the hub 62'.
  • the operating member 52, 52 'associated with the two cutoff compartments 12 of the same pair P, P' having a finger 67, 67 ', which, integral with the hub 62, 62' corresponding, protrudes out of the 11, the two fingers 67, 67 'corresponding respectively to two pairs P, P' of cutoff compartments 12 are, outside the housing 11, connected to one another by the same bar 68, assembly constituting the joystick 25 available to the user.
  • the linkage 53, 53 'associated with each pair P, P' of cutoff compartments 12 comprises, on the one hand , a pawl 70, 70 ', which is rotatably mounted on the corresponding contact support 49, 49', about an axis parallel to the axis A 3 , at a distance from the latter, and which, by means of a spout, hooking not visible in the figures, is adapted to cooperate in engagement with the latching nose 57 of the attachment part 50, 50 'corresponding, and, secondly, a rod 72, 72', which is articulated at the hub 62, 62 'of the actuating member 52, 52' corresponding to the favor of an ear 73, 73 'of the hub 62, 62', and about an axis which, of course, is him also parallel to the axis A 3 .
  • the elastic opening means 54, 54 'associated with the contact support 49, 49' of the cutoff compartments 12 are compression springs.
  • the differential protection compartment 15 is equipped with a fault detector 75 capable of delivering a differential current in response to a the fault, of a sensitive relay 76, which is served by this fault detector 75, a trigger lever 77, which, rotatably mounted about an axis A 4 fixed relative to the housing 11, comprises an arm 78 on which can act the sensitive relay 76, and an actuating lever 79, which, rotatably mounted about a fixed axis A 5 relative to the housing 11 and distinct from the previous fixed axis A 4 , comprises an arm 80 by which, for its intervention on the mechanism 35 of the cutoff compartments 12, it can act on another piece 81 which will be described later.
  • the fault detector 75 comprises, in practice, a torus 82 on which are wound on the one hand, a primary, which, for each of the breaking compartments 12, comprises at least one coupling winding 36 from this breaking compartment 12, and, secondly, a secondary, which is not visible in the figures, and to which is connected the sensitive relay 76.
  • the release lever 77 and the actuating lever 79 also form, with the part 81, in this embodiment, a unitary subassembly 83, which constitutes the mechanism, or "lock,” of the differential protection compartment. 15.
  • these axes A 4 , A 5 are therefore parallel to the fixing face 18 of the housing 11 and perpendicular to the main faces 17 thereof.
  • the axis A 5 that is to say the axis about which is rotatably mounted the actuating lever 79 of the differential protection compartment 15, is in the alignment of the axis A 3 of the contact supports 49, 49 'of the switching compartments 12.
  • the axis A 6 of the torus 82 of the fault detector 75 of the differential protection compartment 15 extends substantially perpendicularly to the fixing face 18 of the housing 11.
  • the coupling winding 36 participating in the constitution of the primary of the fault detector 75 is inserted between the input terminal 13E and the magnetic trip device 30 of such a breaking compartment 12.
  • this coupling winding 36 intervenes immediately downstream of the input terminal 13E and immediately upstream of the corresponding input of the magnetic trip member 30.
  • the coupling winding 36 participating in the constitution of the primary of the fault detector 75 is connected to the magnetic tripping member 30 by a return section 85, which is parallel to the axis A 2 of this magnetic triggering member 30, and which, for all of the cutoff compartments 12, extends to the same level, on the side of the organ magnetic tripping 30 opposite to that which extends the arc extinguishing chamber 43 associated.
  • the part 81 belonging to the unitary subassembly 83 which constitutes the mechanism of the differential protection compartment 15 is a crankshaft, which is rotatably mounted about the same axis A 5 fixed that the actuating lever 79, and which has, laterally, in eccentric position with respect to this fixed axis A 5 , two fingers 87, 87 '.
  • the part 81 forming a crankshaft comprises a hollow hub 88, in which is housed the actuating lever 79, and which is perforated with a recess 89, and the arm 80 of the operating lever 79 extends to the right of the portion of this recess 89, for intervention on the piece 81, and, by the latter, on the attachment piece 50, 50 'of the cutoff compartments 12.
  • Figure 15 illustrates, alternatively, the application of the invention to a bipolar differential circuit breaker 10 '.
  • the width L of the housing 11 'corresponding is then equal to 2M.
  • n is then equal to two.
  • differential protection compartment at one or the other of the ends. of the alignment formed by the breaking compartments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
  • Electronic Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Push-Button Switches (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Keying Circuit Devices (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Control Of Eletrric Generators (AREA)
  • Retarders (AREA)
EP99400774A 1998-04-03 1999-03-30 Disjoncteur différentiel multipolaire Expired - Lifetime EP0948021B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9804153A FR2777110B1 (fr) 1998-04-03 1998-04-03 Disjoncteur differentiel multipolaire
FR9804153 1998-04-03

Publications (2)

Publication Number Publication Date
EP0948021A1 EP0948021A1 (fr) 1999-10-06
EP0948021B1 true EP0948021B1 (fr) 2006-06-21

Family

ID=9524821

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99400774A Expired - Lifetime EP0948021B1 (fr) 1998-04-03 1999-03-30 Disjoncteur différentiel multipolaire

Country Status (7)

Country Link
EP (1) EP0948021B1 (es)
AT (1) ATE331295T1 (es)
DE (1) DE69931989T2 (es)
ES (1) ES2267235T3 (es)
FR (1) FR2777110B1 (es)
HU (1) HUP9900869A3 (es)
PL (1) PL193817B1 (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2457568C2 (ru) * 2007-06-29 2012-07-27 Шнейдер Электрик Эндюстри Сас Электрическое коммутирующее устройство, имеющее дополнительную электрическую функцию
EP3029704A1 (fr) 2014-12-01 2016-06-08 Hager-Electro SAS (Société par Actions Simplifiée) Disjoncteur différentiel

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20011575A1 (it) * 2001-07-23 2003-01-23 Abb Service Srl Interrutore differenziale tetrapolare modulare
FR2902924B1 (fr) * 2006-06-26 2008-08-01 Schneider Electric Ind Sas Appareil electrique modulaire assurant au moins deux fonctions electriques tel un disjoncteur differentiel.
FR2930838B1 (fr) * 2008-05-05 2010-04-16 Schneider Electric Ind Sas Dispositif electrique modulaire
US8817443B2 (en) * 2010-04-14 2014-08-26 Abb Spa Residual current protection device
FR2982409B1 (fr) * 2011-11-07 2023-03-10 Schneider Electric Ind Sas Procede de fabrication d'un tore magnetique pour capteur de courant continu, et tore realise selon ce procede
FR3016078A1 (fr) * 2013-12-27 2015-07-03 Legrand France Appareil electrique au format modulaire
CN104134589B (zh) * 2014-07-17 2016-01-20 正泰集团股份有限公司 一种带有剩余电流脱扣装置的低压断路器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2720548B1 (fr) * 1994-05-31 1996-08-30 Legrand Sa Dispositif de déclenchement différentiel.
US5510759A (en) * 1994-06-23 1996-04-23 Eaton Corporation Miniature circuit breaker with ground fault electronics supported by stiff conductors for easy assembly
FR2723470A1 (fr) * 1994-08-04 1996-02-09 Legrand Sa Disjoncteur
FR2731837B1 (fr) * 1995-03-16 1997-06-06 Legrand Sa Disjoncteur differentiel unipolaire et neutre

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2457568C2 (ru) * 2007-06-29 2012-07-27 Шнейдер Электрик Эндюстри Сас Электрическое коммутирующее устройство, имеющее дополнительную электрическую функцию
EP3029704A1 (fr) 2014-12-01 2016-06-08 Hager-Electro SAS (Société par Actions Simplifiée) Disjoncteur différentiel
WO2016087768A1 (fr) 2014-12-01 2016-06-09 Hager-Electro Sas (Société Par Actions Simplifiée) Dispositif de protection différentielle

Also Published As

Publication number Publication date
HUP9900869A3 (en) 2000-10-30
HUP9900869A2 (hu) 1999-12-28
DE69931989D1 (de) 2006-08-03
PL193817B1 (pl) 2007-03-30
FR2777110A1 (fr) 1999-10-08
DE69931989T2 (de) 2007-03-01
ES2267235T3 (es) 2007-03-01
ATE331295T1 (de) 2006-07-15
HU9900869D0 (en) 1999-06-28
PL332348A1 (en) 1999-10-11
EP0948021A1 (fr) 1999-10-06
FR2777110B1 (fr) 2000-06-23

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