EP1724803A2 - Zu einer elektrischen Schaltvorrichtung zuordenbare elektronische Einrichtung - Google Patents

Zu einer elektrischen Schaltvorrichtung zuordenbare elektronische Einrichtung Download PDF

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Publication number
EP1724803A2
EP1724803A2 EP06425294A EP06425294A EP1724803A2 EP 1724803 A2 EP1724803 A2 EP 1724803A2 EP 06425294 A EP06425294 A EP 06425294A EP 06425294 A EP06425294 A EP 06425294A EP 1724803 A2 EP1724803 A2 EP 1724803A2
Authority
EP
European Patent Office
Prior art keywords
electrical
circuit
enclosure
safety
electrical circuit
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
EP06425294A
Other languages
English (en)
French (fr)
Other versions
EP1724803A3 (de
EP1724803B1 (de
Inventor
Fabrizio Fabrizi
Marcello Re
Daniele Novati
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.)
BTicino SpA
Original Assignee
BTicino SpA
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 BTicino SpA filed Critical BTicino SpA
Publication of EP1724803A2 publication Critical patent/EP1724803A2/de
Publication of EP1724803A3 publication Critical patent/EP1724803A3/de
Application granted granted Critical
Publication of EP1724803B1 publication Critical patent/EP1724803B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
    • H01H71/0271—Mounting several complete assembled circuit breakers together
    • H01H2071/0278—Mounting several complete assembled circuit breakers together with at least one of juxtaposed casings dedicated to an auxiliary device, e.g. for undervoltage or shunt trip
    • 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
    • H01H71/002—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00 with provision for switching the neutral conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • 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

Definitions

  • the present invention relates to an electronic device to be associated with an electrical apparatus, such as, by way of non-limiting example, a safety device.
  • Safety devices such as, for example, automatic circuit-breakers, ground fault circuit interrupters, automatic ground fault circuit interrupters fitted in an installation may cause inefficiencies if their action is ill-timed. Tripping is frequent phenomenon, i.e. the ill-timed opening of ground fault interrupters, due to ground leakage currents either resulting from transient surges on the power line (direct or indirect lightning striking) or temporary failure of the insulation.
  • the safety device is not manually closed after it has tripped in a ill-timed manner, thereby severe inefficiency may occur, such as: failure of alarm operation, safety systems, pump systems or switching off of freezers with deterioration of the food contained therein.
  • a known reset module comprises an inner kinematism acting on the manual lever of the safety device and a thermal actuator acting on the kinematism when the safety device has tripped, in order that the kinematism actuates the resetting.
  • Reset modules comprising an electronic device therein, which is suitable to detect the installation failure and lock out the reset module by signalling this locked-out condition to the outside. In this locked-out condition, the automatic resetting of the safety device is prevented of an actual installation failure.
  • a drawback with the conventional resetting modules being provided with the electronic device is that they cannot be adapted to the varying typologies of safety devices to which they have to be associated.
  • the object of the present invention is to allow monitoring the condition of the installation which does not suffer from the above-cited prior art drawback.
  • the object of the present invention is achieved by an electronic apparatus such as described in the annexed claim 1. Preferred embodiments of said apparatus are described in the dependent claims 2 to 20.
  • the object of the present invention is also an electrical assembly such as defined in the dependent claim 21.
  • Fig. 1 shows the electrical assembly 300, in the assembled configuration, comprising an electrical device 100 that is operatively associated with a control electronic device 500.
  • the electrical apparatus 100 is preferably a safety electrical device, such as of a conventional type.
  • the safety device 100 is provided with input terminals Li and Ni (such as a phase terminal and a neutral one) for connection to a power network NW and output terminals Lo and No for connecting the safety device to an external electrical circuit which is outlined in the figure as a load LD (such as a household electrical installation).
  • the safety device 100 is such as to adopt a closed state in which the load LD is connected to the power network NW and an open state in which the load LD is disconnected from the power network NW.
  • the safety device 100 can be, for example, one of the following conventional circuit breakers: automatic circuit-breaker, ground fault circuit interrupter, automatic ground fault circuit interrupter (such as a magneto-thermal ground fault interrupter).
  • automatic circuit-breaker ground fault circuit interrupter
  • automatic ground fault circuit interrupter such as a magneto-thermal ground fault interrupter.
  • Fig. 3 an automatic ground fault circuit interrupter has been outlined, which comprises a contact breaker 400 and an automatic circuit-breaker 600.
  • the safety device 100 comprises a respective enclosure made of insulating material 107 and a first drive lever 112 (e.g., a handle) that can be manually displaced between two different positions to switch the safety device from the closed state to the opened state, and vice versa, in a manual manner.
  • the insulating body 107 houses electro-mechanical means (not shown, as know per se) therein, which automatically cause the opening thereof with the consequent displacement of the first drive lever 112, following the detection of a failure in the load LD such as, for example, a ground leakage current or a short-circuit.
  • this safety device 100 has on a side wall 107' thereof, in a manner known per se, an aperture 110 (seen only in the view from Fig. 2) in which a pivot can be inserted from the outside such as to be coupled with a coupling and releasing mechanism (not shown, as being conventional) housed in the enclosure 107 to cause the switching of the device 100.
  • a coupling and releasing mechanism not shown, as being conventional housed in the enclosure 107 to cause the switching of the device 100.
  • An upper wall 102 and a lower wall 103 of the safety device 100 are provided with terminals 109 for further input Li and Ni and output Lo and No phase and neutral conductors that are connected to the control device 500.
  • control electronic device 500 comprises an insulating enclosure body 501, such as including two portions to be fixed by means of screws or rivets (not shown), which engage within seats 502.
  • control device 500 is a module separated from the safety device 100, since the enclosure 501 is independent from the enclosure 107 of the safety device 100.
  • the enclosure 501 of the control device 500 is provided with reversible fixing means allowing the same to be coupled and uncoupled to/from the enclosure 107 of the safety device.
  • fixing means comprise, for example, clips 550 (Fig. 5) to be inserted in apertures 115 (Fig. 2) being formed in the enclosure body 107 of the safety device 100.
  • One or more of said clips 550 is fixed to a respective support element 551 to be inserted in a seat of the enclosure 501 and to be fixed thereto by means of a respective screw.
  • the enclosure 501 is provided with a first plurality of terminals 503 for connection with the phase Li and neutral Ni input conductors, which are taken from the safety device 100 and thus connect the control device to the power network NW.
  • the enclosure 501 is provided with a second plurality of terminals 503' for connection to the phase Lo and neutral Lo conductors, which output from the safety device 100 and thus connect the control device to the load LD.
  • a terminal of the second plurality of terminals 503' is connected by means of a conductor PE to a safety circuit (i.e. the earth), if present.
  • the terminals of the first plurality 503 can also be used to send suitable command signals to the reset module, if provided, which are transmitted by remote control units (by means of terminals C1 and C2 illustrated in Fig. 3), in order either to open and close the safety device 100 or monitor the load LD.
  • the control device 500 is capable of detecting an operative condition of the load LD and generate a corresponding command signal based on which an operative condition of the safety device can be changed.
  • the control device 500 comprises control electronic means 50 (Fig. 3 and 4), which are connected to the load LD and being such that either a failure condition or normal condition of the load is detected, and in the former case, a command signal Sr is generated, which is provided on a corresponding power line.
  • control device 500 is provided with actuating means, which are at least partially enclosed within said enclosure 501 and can be coupled to the safety device 100, which are intended to receive the command signal Sc and act on the safety device in order to change the operative condition thereof.
  • the control electronic means 50 will be considered first, which are shown in Fig. 4 and preferably provided on a printed circuit board that is completely housed within the enclosure 501.
  • This circuit board 50 comprises a check electronic block 51 (MEAS) communicating with a central block or unit 52 ( ⁇ C) managing the entire board 50 and, advantageously, a power supply device 53.
  • MEAS check electronic block 51
  • ⁇ C central block or unit 52
  • the power supply device 53 is connected to the input phase and neutral conductors Li and Ni to receive alternating current (such as, 50 Hz frequency) from the network NW and includes a rectifier circuit that converts it to direct current and provides the circuit board 50 with a suitable voltage value.
  • this power supply device 53 is provided with a safety transformer allowing the load LD to be suitably insulated from the power network NW.
  • the isolating transformer allows preventing the circuit board 50 from placing the network NW and the load LD in contact with each other, i.e. transferring the voltages of the network to the load. This isolating transformer is particularly advantageous because, when the safety device 100 is opened, it prevents the network voltages from being transferred to the load of the circuit board thereby allowing maintenance operations to be carried out on the load in total safety.
  • a fuse FU is provided on the input phase conductor Li to protect the circuit board from high currents from the network NW, which may damage it.
  • the check block 51 and central unit 52 are connected to the output of the power supply device 53.
  • the check block 51 which can be provided with technologies known in the art, is connected to an output of the load LD (by means of the conductors Lo and No) and is capable of carrying out measurements of electrical parameters of the load LD.
  • the check block 51 is further capable of detecting whether the safety device 100 has turned to the open state, because it detects the lack of electric voltage on the load LD.
  • the check circuit (driven by the central unit 52) starts one or more measurements on the load LD to evaluate whether it is experiencing an actual failure condition or if the safety device 100 has been opened due to a temporary cause (such as due to an ill-timed tripping of the safety device).
  • the check block 51 is capable of carrying out a direct current measurement of the impedance between phase conductor Lo and neutral conductor No of the load LD.
  • the check block 51 when the safety circuit is provided (grounding GND), the check block 51, by means of the conductor PE, can carry out (either alternatively or in addition to the above measurement) an alternating current measurement (at a suitable frequency) of impedance between the output phase and neutral conductors Lo and No and the safety circuit.
  • the control device can carry out a measurement of the leakage current by applying a voltage, between the output phase Lo and output neutral No conductors and the safety circuit, respectively.
  • the central unit 52 receives these data and compares them with reference electrical parameters that have been previously stored therein. When the impedance values resulting from the comparison are consistent with a condition of failure, the central unit 52 activates the command signal Sc.
  • the central unit 52 also acts as an interface with the user and is equipped with a communication port CP, such as of the serial type, for the remote monitoring of the load LD and exchange of information concerning the measurements that have been carried out.
  • the check block 51 is also capable of carrying out a measurement of the maximum electrical voltage provided by the power network NW and sending corresponding data to the central unit 52 that provides to activate the command signal SC if the measured voltage exceeds a maximum reference value.
  • This measurement of the maximum voltage is particularly useful for protecting single-phase users connected in three-phase installations, because in these installations the interruption of the neutral implies that an overvoltage exists between the phases and the neutral as a function of the type of single-phase loads that are distributed between the neutral and phases.
  • the interruption of the neutral can be due to accidental causes (opening of the main switch pole, interruption of conduits, interruption of cable joints, or the like) and the resulting overvoltage is the cause of considerable damages to the electrical equipment.
  • the actuating means comprise a release device to be mechanically connected to the safety device 100 such that the switching from the opened condition to the closed condition is inhibited when the command signal indicates that a failure condition of the load has been detected.
  • this release device comprises a first contact-breaker 54, an energizable coil actuator 55 (for brevity, the “release coil” herein below) and a rotating rocker body 56 (Fig. 3 and 4).
  • the first circuit-breaker 54 is preferably an electronic circuit-breaker (for example, a TRIAC) connected to the network NW and having an output connected (by means of a first contact 57) to the release coil 55.
  • the first circuit-breaker 54 can be driven by means of the command signal Sc described above and, for example, is closed when said command signal is activated.
  • the release coil 55 when electrical current flows therethrough (i.e. when both the first circuit-breaker 54 and first contact 57 are closed), generates such a magnetic field that a rod-like element 58 cooperating with the rocker body 56 is translated.
  • the rocker body 56 is free to perform limited rotations about a pivot 59 and supports a motion transmission element, such as particularly, a pin 60.
  • This pin 60 projects outside the enclosure 501 of the control device 500 for insertion in the opening 110 (Fig. 2) of the safety device 100.
  • the pin 60 is such as to be engaged with the release mechanism included in the enclosure 107 of the safety device 100, thereby causing the switching of the latter due to the rotation of the rocker body 56.
  • control device 500 further comprises a second drive lever 522 that can be rotated about a pivot 523 and held, when no further action has to be taken, in the closed position (Fig. 1) together with a helical spring wound on the pivot 523 and having ends 524 and 525.
  • the end 524 of the spring is a part of a contact 61, which, when closed (i.e. the contact 61 being in the position of Fig. 4 and the safety device 100 being in the opened condition) connects an output terminal of the check block 51 to the output neutral conductor No, thereby allowing said measurements to be taken.
  • the second drive lever 522 is mechanically connected to the first drive lever 112 of the safety device 100, such as by means of a projecting element 530 of the second lever 522 which inserts within a side cavity of the first lever 112.
  • the control device 500 is advantageously provided with a front push-button PA that can be accessed from the outside, which allows the same to be opened/closed in order to deactivate/deactivate the action of the command signal Sc. Furthermore, different devices signalling the condition of the control device 500 can be provided.
  • the enclosure 501 of the control device 500 is provided with a first LED (Light Emitting Diode) 526 signalling a short-circuit and a second LED 527 signalling a ground failure.
  • a sound signal device (to be activated by the central unit 52, similar to the LEDs 526 and 527) may also be provided, which warns the user about the presence of a permanent failure.
  • This sound signal can be useful when the control device 500 is installed in a junction box located in a decentred area.
  • the sound signal can be silenced by acting on the front push-button PA or eliminating the failure condition.
  • the sound signal can be used to identify the failure occurring on the installation (i.e. according to the example, the load LD), by removing the plugs of the users or sectioning the parts of the installation until the failure area is identified, and the sound signal turns off.
  • the central unit 52 is preferably capable of storing the failure signallings such that, even in case of temporary absence of voltage from the power network NW, the failure is signalled when the voltage is restored.
  • an initial condition will be considered in which the safety device is closed (drive lever 112, as in Fig. 1).
  • the check block 51 of the control device 500 detects that the voltage is present on the load LD and arranges itself in a rest condition.
  • the check block 51 of the control device 500 When the safety device 100 is opened (either by manual opening, opening due to an actual failure or ill-time opening), the check block 51 of the control device 500 does not detect the voltage on the load LD and activates, automatically and under the management of the central unit 52, the control of the condition of the load LD.
  • the check block 51 then carries out either all or some of the above measurements (impedances or leakage currents) to define the corresponding electrical parameters. These electrical parameters are then provided to the central unit 52 that (by running a pre-stored software) compares with reference values, which are set by the current standards, for example. This condition corresponds to Fig. 4, in which the second drive lever 522 is seen lowered and the contact 61 is closed.
  • the central unit 52 identifies one or more anomalous values in the electrical parameters, and believes that an actual failure has occurred, it activates the command signal Sc.
  • This command signal Sc closes the first electronic circuit-breaker 54.
  • the central unit 51 can further activate the signalling devices listed above.
  • a user closes the safety device 100 by acting manually on the first drive lever 112
  • the mechanism inside the safety device 100 by means of the pin 60 causes the rotation of the rocker body 56 (arrow F1) which causes the first contact 57 to close.
  • the release coil 55 is powered by the network NW, as both the first circuit-breaker 54 and first contact 57 are closed (see Fig. 3).
  • the release coil 55 is rapidly powered such as to cause, by means of the rod-like element 58, the rotation of the rocker body 56 in the opposite direction.
  • the modular control device 500 can be associated with a reset module (for example of a known type) which is intended to reset the safety device.
  • control device 500 provided in the form of an independent module has the advantage that it can be structurally coupled with several safety devices or other types of electrical apparatuses (having a standardized shape).
  • the safety device can be implemented to the control device, with clear consequences on cost reduction.
  • the modularity of the inventive control device there is no need to modify and complicate either the structure of the known safety devices or the manufacturing techniques therefor.

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  • Emergency Protection Circuit Devices (AREA)
  • Control Of Electric Motors In General (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Endoscopes (AREA)
  • Transmitters (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Gas-Insulated Switchgears (AREA)
EP06425294A 2005-05-17 2006-05-03 Zu einer elektrischen Schaltvorrichtung zuordenbare elektronische Einrichtung Active EP1724803B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000901A ITMI20050901A1 (it) 2005-05-17 2005-05-17 Dispositivo elettronico associabile ad un apparato elettrico

Publications (3)

Publication Number Publication Date
EP1724803A2 true EP1724803A2 (de) 2006-11-22
EP1724803A3 EP1724803A3 (de) 2008-01-23
EP1724803B1 EP1724803B1 (de) 2010-04-21

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EP06425294A Active EP1724803B1 (de) 2005-05-17 2006-05-03 Zu einer elektrischen Schaltvorrichtung zuordenbare elektronische Einrichtung

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EP (1) EP1724803B1 (de)
AT (1) ATE465506T1 (de)
DE (1) DE602006013747D1 (de)
IT (1) ITMI20050901A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010146248A1 (fr) 2009-06-18 2010-12-23 Schneider Electric Industries Sas Dispositif permettant de tester la presence d'un court-circuit et disjoncteur le comprenant
EP2662879A1 (de) * 2012-05-07 2013-11-13 ABB S.p.A. Zubehörvorrichtungsanordnung für Schaltvorrichtungen mit niedriger und mittlerer Spannung
WO2019220022A1 (fr) * 2018-05-16 2019-11-21 Hager-Electro Sas Appareil électrique de coupure différentiel
EP3671799A1 (de) * 2018-12-20 2020-06-24 Schneider Electric USA, Inc. Nullleiterschutzschalter mit doppelunterbrechung und netzseitiggespeister elektronischer platine
CN112447455A (zh) * 2019-09-05 2021-03-05 施耐德电器工业公司 辅助电子保护模块及相关的断路器装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855502A (en) * 1973-02-22 1974-12-17 Ite Imperial Corp Ground fault interrupter device
US3970975A (en) * 1975-05-05 1976-07-20 I-T-E Imperial Corporation Ground fault circuit breaker with ground fault trip indicator
US4023127A (en) * 1975-09-11 1977-05-10 Heinemann Electric Company Circuit breaker with contacts which are not engageable when the electrical sensing unit thereof is energized
EP0371887A1 (de) * 1988-11-28 1990-06-06 Merlin Gerin Modulschützschalter mit Hilfsauslöseblock mit einer automatischen oder unabhängigen Wiedereinschaltung
US4979070A (en) * 1989-06-13 1990-12-18 Bodkin Lawrence E Automatic reset circuit for GFCI
WO2002009252A1 (en) * 2000-07-10 2002-01-31 Johannes Barend Ad Coetzee A switching system
WO2004047137A1 (de) * 2002-11-20 2004-06-03 Moeller Gmbh Hilfsauslöser für motorschutzschalter
EP1569314A1 (de) * 2004-02-27 2005-08-31 Gewiss S.P.A. Automatische Wiedereinschaltvorrichtung, insbesondere für Fehlerstromschutzschalter und Ähnlich

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855502A (en) * 1973-02-22 1974-12-17 Ite Imperial Corp Ground fault interrupter device
US3970975A (en) * 1975-05-05 1976-07-20 I-T-E Imperial Corporation Ground fault circuit breaker with ground fault trip indicator
US4023127A (en) * 1975-09-11 1977-05-10 Heinemann Electric Company Circuit breaker with contacts which are not engageable when the electrical sensing unit thereof is energized
EP0371887A1 (de) * 1988-11-28 1990-06-06 Merlin Gerin Modulschützschalter mit Hilfsauslöseblock mit einer automatischen oder unabhängigen Wiedereinschaltung
US4979070A (en) * 1989-06-13 1990-12-18 Bodkin Lawrence E Automatic reset circuit for GFCI
WO2002009252A1 (en) * 2000-07-10 2002-01-31 Johannes Barend Ad Coetzee A switching system
WO2004047137A1 (de) * 2002-11-20 2004-06-03 Moeller Gmbh Hilfsauslöser für motorschutzschalter
EP1569314A1 (de) * 2004-02-27 2005-08-31 Gewiss S.P.A. Automatische Wiedereinschaltvorrichtung, insbesondere für Fehlerstromschutzschalter und Ähnlich

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010146248A1 (fr) 2009-06-18 2010-12-23 Schneider Electric Industries Sas Dispositif permettant de tester la presence d'un court-circuit et disjoncteur le comprenant
EP2662879A1 (de) * 2012-05-07 2013-11-13 ABB S.p.A. Zubehörvorrichtungsanordnung für Schaltvorrichtungen mit niedriger und mittlerer Spannung
US9407071B2 (en) 2012-05-07 2016-08-02 Abb S.P.A. Accessory device assembly for low and medium voltage switching devices
WO2019220022A1 (fr) * 2018-05-16 2019-11-21 Hager-Electro Sas Appareil électrique de coupure différentiel
CN112243530B (zh) * 2018-05-16 2023-09-05 黑格尔电镀物品股份公司 电气差动开关装置
CN112243530A (zh) * 2018-05-16 2021-01-19 黑格尔电镀物品股份公司 电气差动开关装置
AU2018423700B2 (en) * 2018-05-16 2021-10-07 Hager-Electro Sas Electrical differential switching device
US10984974B2 (en) 2018-12-20 2021-04-20 Schneider Electric USA, Inc. Line side power, double break, switch neutral electronic circuit breaker
EP3671799A1 (de) * 2018-12-20 2020-06-24 Schneider Electric USA, Inc. Nullleiterschutzschalter mit doppelunterbrechung und netzseitiggespeister elektronischer platine
FR3100654A1 (fr) * 2019-09-05 2021-03-12 Schneider Electric Industries Sas Module électronique auxiliaire de protection et dispositif de disjonction associé
EP3790034A1 (de) * 2019-09-05 2021-03-10 Schneider Electric Industries SAS Elektronisches hilfsschutzmodul und entsprechende schutzschaltervorrichtung
CN112447455A (zh) * 2019-09-05 2021-03-05 施耐德电器工业公司 辅助电子保护模块及相关的断路器装置
CN112447455B (zh) * 2019-09-05 2024-05-28 施耐德电器工业公司 辅助电子保护模块及相关的断路器装置

Also Published As

Publication number Publication date
ATE465506T1 (de) 2010-05-15
DE602006013747D1 (de) 2010-06-02
EP1724803A3 (de) 2008-01-23
ITMI20050901A1 (it) 2006-11-18
EP1724803B1 (de) 2010-04-21

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