EP3048630A1 - Dispositif d'affichage et disjoncteur d'arc électrique - Google Patents

Dispositif d'affichage et disjoncteur d'arc électrique Download PDF

Info

Publication number: EP3048630A1
Authority: EP; European Patent Office
Prior art keywords: display element; fire protection; protection switch; triggering; display device
Prior art date: 2015-01-22
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

EP15198047.1A

Other languages

German (de)

English (en)

Other versions

EP3048630B1 (fr

Inventor

Vinod Gideon Dhanraj

Florian Festl

Tobias Keimel

James Saunders

Sebastian Schaich

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.)

Siemens AG

Original Assignee

Siemens AG

Siemens Corp

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.)

2015-01-22

Filing date

2015-12-04

Publication date

2016-07-27

2015-12-04 Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG

2016-07-27 Publication of EP3048630A1 publication Critical patent/EP3048630A1/fr

2020-02-05 Application granted granted Critical

2020-02-05 Publication of EP3048630B1 publication Critical patent/EP3048630B1/fr

Status Active legal-status Critical Current

2035-12-04 Anticipated expiration legal-status Critical

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
- H01H71/04—Means for indicating condition of the switching device
- 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
- 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
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage
- 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
- H01H2083/201—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 abnormal electrical condition being an arc fault
- 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

Definitions

the invention relates to a display device for a fire protection switch and a fire protection switch for detecting an arc fault.
fire protection switch In electrical installation technology, the term "fire protection switch” is understood to mean a protective device for protection against a fault current caused by an arcing fault. Such arc fault protection devices are used in low-voltage networks to protect the electrical installation technology from damage due to a fault current due to a fault arc and its thermal consequences - such as cable fires.
an arc fault may occur at a defective location of an electrical line, e.g. a loose cable clamp, or due to a cable break occur. If the arc occurs electrically in series with an electrical load, the normal operating current is usually not exceeded because it is limited by the consumer. For this reason, the arc is not detected by a conventional overcurrent protection device, such as a fuse or a circuit breaker. This is particularly problematic at high operating currents as well as existing for a long time arc fault, since in these cases, there is a risk of fire due to the associated with the arc high temperatures.
both the voltage curve and the current profile over time are measured by the fire protection switch and evaluated by means of digital signal processing.
the current profile has characteristic, high-frequency in an arc fault Shares on.
Arc fault so-called fire protection switch
these fire protection switches In contrast to the models available on the US market, however, these fire protection switches generally do not have their own isolating contacts, but are usually used as an independent module, the so-called AFD block, with a further protective device, for example a circuit breaker (so-called LS switch ) or a combined circuit breaker / residual current circuit breaker (so-called RCCB). This combination of the two devices then forms the AFDD circuit breaker.
LS switch circuit breaker
RCCB residual current circuit breaker
Such protective switching devices - ie circuit breakers, residual current circuit breakers or combined devices such as FI / LS or AFDD - are also referred to as "DIN rail mounted devices". This term is due to the fact that in an electrical distribution manifold often a plurality of such modular devices are arranged side by side "in a row”.
the fire circuit breaker When combining a fire protection switch with the other protection switching device, on the one hand, an electrical connection of the two devices is required to realize a common feed.
the fire circuit breaker usually already electrical connection means which are led out of the housing of the fire circuit breaker to be electrically connected to the terminals of the further protection switching device.
the fire protection switch also has a mechanical coupling with the further protective switching device to transmit a generated based on a detected fault current trip signal from the fire circuit breaker to the other protection device.
the trigger signal When triggering the fire circuit breaker, the trigger signal is consequently transmitted to the further protective switching device - for example, a circuit breaker or a combined line protection / residual current circuit breaker - which then causes an interruption of the circuit to be monitored by opening its switching contacts.
the further protective switching device is only switched on again when the cause for the triggering of the fire protection switch has been eliminated, in order to effectively and permanently avoid a continuing danger to surrounding persons from electric shock or possible property damage due to a cable fire.
the display device according to the invention for a fire protection switch for detecting an arc fault has a triggering device, which in turn has a trip coil and a relative thereto movably mounted release plunger, which can be brought by energizing the trip coil from a tripping ready position to a triggered position. Furthermore, the display device has a display element which can be moved from a first position to a second position when the fire protection switch is triggered. By located in the triggering position trigger plunger, the display element is held in its first position, while it can be released by a movement of the trigger plunger in its triggered position. A reset of the trigger plunger from its triggered position to its triggering position is blocked by the display element in its second position.
the display element of an operator By the first position of the display element of an operator is displayed a ready to trigger state of the fire protection switch, whereas by the display element in the second position, a successful tripping of the fire protection switch due to a predefined fault condition, such as a detected fault arc, is signaled.
a predefined fault condition such as a detected fault arc
the release plunger When the fire protection switch is triggered, the release plunger is moved from its ready-to-release position to its released position. Subsequently, the fire protection switch remains in this tripped state until the release plunger has been returned from its tripped position to its triggering ready position.
the display element in order to reset the release plunger in its tripping ready position, the display element must first be returned to its first position, since this blocked in its second position, the reset of the release plunger.
the return of the display element since the return of the display element is possible in its first position only by a manual intervention of the operator, it is ensured that an automatic restart -
the display element is L-shaped and has a oriented in a direction of movement of the display element shaft with a transversely oriented to the direction of foot.
the foot of the display element with the release plunger in the tripping ready position forms an undercut, which prevents movement of the display element from its first position to its second position.
the foot is released, wherein the foot in the second position of the display element blocks a reset of the trigger plunger from its triggered position to its triggering ready position.
An undercut of the two movable construction elements of the display device - trigger plunger and display element - is a common structural design feature to realize a mutual blocking or releasing the two construction elements in their respective positions or positions in a simple and robust manner.
the display element is coupled to a spring element which urges the display element from the first position to the second position.
a spring element provides a constructive easy way to exert a permanent force on the display element, which urges the display element in its second position. In this way, a simple, robust and cost-effective design of the display device is made possible.
the display element is designed as a light guide for transmitting a light signal.
the state of the fire protection switch can be signaled not only on the position of the display element, but also visually by means of a color signal.
the respective state of the fire protection switch is visually by a corresponding color - and thus faster - detectable.
the tripped state of the fire circuit breaker can be detected faster by the operator, whereby the safety of the electrical installation is further improved.
the light signal can be generated by means of a multicolor LED or by means of a plurality of individual LEDs in order to optically signal different states of the fire protection switch by a different color scheme.
the display element is movable to a third position, whereby a reset of the fire circuit breaker in a ready-triggering state is effected, wherein the first position of the display element between the second position and the third position.
the fire protection switch is set back in its ready-triggering initial state.
This reset of the fire circuit breaker thus corresponds to a RESET function.
the fire protection switch according to the invention for detecting a predefined fault current has a housing, a display device of the type described above, which is received and held in the housing, and a coupling element which - formed in a side wall of the housing - provided for coupling the fire circuit breaker with another protective device is on.
the coupling element is in this case coupled to the release plunger of the display device such that upon a movement of the release plunger into its triggered position, a triggering signal can be transmitted by means of the coupling element to the further protective switching device coupled to the fire protection switch.
the trigger signal of the fire circuit breaker to a coupled to the fire circuit breaker is transferable, which interrupts the monitored circuit due to the received trigger signal. Therefore, the fire circuit breaker does not need its own isolating contacts to interrupt the circuit to be monitored. With the movement of the trigger plunger in its triggered position and the movement of the display element is released to its second position. A reconnection of coupled with the fire circuit breaker further protection device is only possible when the release plunger has been returned to its triggering ready position is.
the fire protection switch on a micro-button which can be actuated by moving the display element in its third position, whereby a reset of the fire protection switch is effected in a ready-triggering state.
a reset of the fire protection switch is effected in a ready-triggering state.
the coupling element has a spring element which counteracts the movement of the coupling element initiated by the triggering element.
a spring element which pushes the coupling element back into its starting position a simple and inexpensive way to realize a reset function of the coupling element.
the coupling element is mounted as a rotatable driver in the side wall of the fire circuit breaker.
the design of the coupling element as a rotatably mounted driver provides - especially in a bidirectional signal transmission between the fire circuit breaker and the other protection device - a structurally simple and cost-effective way to realize the signal transmission between the two protection devices.
FIGs 1A and 1B are the display device according to the invention and the fire protection switch 1 according to the invention in a first, tripping ready operating state shown schematically.
FIG. 1A a perspective external view of the fire protection switch 1 according to the invention is shown with the housing 2 closed, while in FIG. 1B a detailed representation of the opened fire protection switch housing 2 is shown with the display device arranged therein.
the fire protection switch 1 has a housing 2, which in turn has a front side 3, a front side 3 opposite mounting side 4, and the front side 3 and the attachment side 4 connecting narrow sides 5 and 6 wide sides.
the attachment side 4 is used to attach the fire circuit breaker 1 to a support rail or DIN rail (not shown), as used for example in an electrical distribution distributor for mounting a plurality of DIN rail mounted devices.
the fire protection switch 1 has a display element 10, which is arranged in the interior of the housing 2, but is visible through a formed in the front side 3 of the housing 2 opening to signal the triggering of the fire protection switch 1 in the event of triggering. This signaling can be done both by a mechanical movement of the triggering element 10, as well as by an additional optical marking.
FIG. 1B shows the opened fire circuit breaker housing 2 with the display device disposed therein, wherein the fire protection switch 1 is in a first ready to trigger operating state.
the fire protection switch 1 has a triggering device 20, which in turn has a trip coil 21 and a - in a first direction x - relatively movably mounted release plunger 22.
the trigger plunger 22 is in a tripping ready position and is powered by the trip coil 21 in a tripped position (see FIG. 2B ).
the display element 10 is in principle in a second direction y, which is oriented transversely - in particular orthogonal - to the first direction x, relative to the housing 2 between a first, in FIG. 1B position shown, and one in FIG. 2B shown second position, slidably mounted.
the display element 10 essentially consists of an elongate shaft 11 which extends in the second direction y, and a foot 12 formed on a lower end of the shaft 11, which protrudes beyond the shaft 11 in the first direction x.
the foot 12 may be formed on the shaft 11, so that the display element 10 is integrally formed.
the fire protection switch 1 has a mounted inside the housing 2 microswitch 40, which is designed as a micro-switch and by moving the display element 10 in a third position (s. Figure 3 ) is operable.
the display element 10 is pressed by hand or with the aid of a tool against the second direction y a little way into the housing 2 of the fire protection switch 1 until the foot 12 or the shaft 11 of the display element 10 touches the microswitch 40 and actuates it.
a RESET function of the fire protection switch 1 can be initiated, by means of which it is set back into its ready-to-trigger initial state.
the fire protection switch 1 has an LED 30, which is arranged in the interior of the housing 2 below the shaft 11 of the display element 10. If the display element 10 is designed as a light guide for transmitting a light signal, with the help of this LED 30 in addition to the mechanical change in position of the display element 10, an optical signal can be generated, which signals an operator that the fire protection switch 1 due to a detected by him Fault current has been triggered. If the LED 30 is also designed as a multi-color LED, as well as a plurality of different operating states of the fire protection switch 1 can be displayed by a correspondingly differentiated color.
a coupling element 50 which in a the broad sides 6 of the housing 2 is rotatably mounted.
the coupling element 50 has an operative connection to the release plunger 22, such that the coupling element 50 is caused to rotate in the event of a triggering of the fire protection switch by the release plunger 22. This rotational movement is transmitted to the coupled with the fire protection switch 1 more protective switching device and causes this is also triggered, whereby the electrical line to be monitored is interrupted.
a return spring 51 is provided, which is designed as a torsion spring, acts on the coupling element 50 and is supported on the housing 2.
FIG. 1B In the presentation of the FIG. 1B assumes the display element 10, a first position in which the foot 12 of the display element 10 with the release plunger 22 of the triggering device 20 forms an undercut. In this way - in the in FIG. 1B illustrated, tripping ready operating state of the fire protection switch 1 - a movement of the display element 10 of the in FIG. 1B shown first position in his in FIG. 2B shown second position inhibited. As long as the trigger plunger 22 is in its triggering ready position, a movement of the display element 10 is in its second position, which signals an actuation of a successful triggering of the fire circuit breaker 1 due the undercut of the right end of the trigger plunger 22 with the foot 12 of the display element 10, effectively prevented.
FIGS. 2A and 2B schematically show the display device according to the invention and the fire protection switch 1 according to the invention in a second operating state in which the fire protection switch 1 has already triggered due to a detected fault current.
the display element 10 is in its second position and protrudes with its upper end beyond the outer contour of the front side 3 of the fire protection switch housing 2 addition.
FIG. 2A again shows a perspective external view of the triggered fire protection switch 1 with the housing 2 closed, while in Figure 2B, the associated detail of the open fire circuit breaker housing 2 is shown with the display device disposed therein, wherein the fire protection switch 1 is in a second, tripped operating condition.
the trip coil 21 was energized, whereby the trigger plunger 22 was moved by means of a movement in the first direction x in its second, triggered position.
the trigger plunger 22 By the movement of the trigger plunger 22 in its triggered position, the undercut of the right end of the trigger plunger 22 is lifted with the foot 12 of the display element 10. As a result, the display element 10 is no longer blocked in its movement. Due to the spring force exerted by the spring element 15 on the display element 10, the display element 10 is in his (in FIG. 2B shown) second position moves and held there. In this second position, the foot 12 of the display element 10 is at the level of the trigger plunger 22, whereby a reset of the trigger plunger 22 is blocked from its tripped position in its tripping ready position. This is the case until the display element 10, manually or with the aid of a tool back into his, in FIG. 1B shown, first position returned becomes. Only when the display element is again in its first position, the release plunger 22 is no longer blocked and can - for example, by means of its own return spring - are returned to its triggering ready position.
the fire protection switch must first be reset by manual actuation of the display element 10 into its ready-to-trigger operating state, before the circuit to be monitored is closed again by switching on the further protective switching device. In this way, it is ensured that initially an operator must register the triggering of the fire protection switch 1 and must actively acknowledge. An automatic restart by closing the circuit to be monitored is thus effectively prevented.
FIG. 3 is the display device in a third operating state in which the display element 10 assumes its third position, shown schematically.
the microswitch 40 touched and pressed. This can be done both from the second position and from the first position of the display element 10.
a RESET function is then initiated, which sets the fire protection switch 1 back to its initial state ready for triggering.

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Physics & Mathematics (AREA)
Electromagnetism (AREA)
Breakers (AREA)
Indication Of The Valve Opening Or Closing Status (AREA)

EP15198047.1A 2015-01-22 2015-12-04 Dispositif d'affichage et disjoncteur d'arc électrique Active EP3048630B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102015201009.0A DE102015201009A1 (de)	2015-01-22	2015-01-22	Anzeigevorrichtung und Brandschutzschalter

Publications (2)

Publication Number	Publication Date
EP3048630A1 true EP3048630A1 (fr)	2016-07-27
EP3048630B1 EP3048630B1 (fr)	2020-02-05

Family

ID=54783470

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP15198047.1A Active EP3048630B1 (fr)	2015-01-22	2015-12-04	Dispositif d'affichage et disjoncteur d'arc électrique

Country Status (3)

Country	Link
EP (1)	EP3048630B1 (fr)
CN (1)	CN105826141B (fr)
DE (1)	DE102015201009A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP3764496A1 (fr)	2019-07-10	2021-01-13	Hager-Electro Sas	Procédé permettant, à partir d'un appareil de protection, d'indiquer au moins une information de défaut relative à au moins un défaut détecté dans une ligne électrique, un tel appareil de protection et installation électrique comprenant au moins un tel appareil de protection

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN109712852B (zh) *	2018-12-19	2020-07-10	河南平高电气股份有限公司	一种高压开关欠压脱扣装置及使用该装置的高压开关

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US5729145A (en)	1992-07-30	1998-03-17	Siemens Energy & Automation, Inc.	Method and apparatus for detecting arcing in AC power systems by monitoring high frequency noise
US6031699A (en)	1998-11-23	2000-02-29	Siemens Energy & Automation, Inc.	Arc fault detector apparatus, means and system
US20030151478A1 (en) *	2001-10-02	2003-08-14	Dejan Radosavljevic	Protection device with lockout test
US20090184787A1 (en) *	2004-09-29	2009-07-23	Pass & Seymour, Inc.	Protective Device Having a Thin Construction
US20100020453A1 (en) *	2008-07-25	2010-01-28	Siemens Energy & Automation, Inc.	Modular Circuit Breaker

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US3321597A (en) *	1965-07-19	1967-05-23	Texas Instruments Inc	Circuit breaker having a thermoresponsive element with two leg portions and reset button for camming said leg portions
US6944001B2 (en) *	1998-08-24	2005-09-13	Leviton Manufacturing Co., Inc.	Circuit interrupting system with independent trip and reset lockout
DE102004040288B4 (de) *	2004-08-19	2007-09-20	Siemens Ag	Schutzschalter mit Kurzschluss- und Überlastauslöseanzeige sowie entsprechendes Verfahren
CN103915297B (zh) *	2014-03-25	2016-10-05	上海诺雅克电气有限公司	具有故障指示的断路器

2015
- 2015-01-22 DE DE102015201009.0A patent/DE102015201009A1/de not_active Withdrawn
- 2015-12-04 EP EP15198047.1A patent/EP3048630B1/fr active Active
2016
- 2016-01-12 CN CN201610016570.9A patent/CN105826141B/zh active Active

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5729145A (en)	1992-07-30	1998-03-17	Siemens Energy & Automation, Inc.	Method and apparatus for detecting arcing in AC power systems by monitoring high frequency noise
US6031699A (en)	1998-11-23	2000-02-29	Siemens Energy & Automation, Inc.	Arc fault detector apparatus, means and system
US20030151478A1 (en) *	2001-10-02	2003-08-14	Dejan Radosavljevic	Protection device with lockout test
US20090184787A1 (en) *	2004-09-29	2009-07-23	Pass & Seymour, Inc.	Protective Device Having a Thin Construction
US20100020453A1 (en) *	2008-07-25	2010-01-28	Siemens Energy & Automation, Inc.	Modular Circuit Breaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP3764496A1 (fr)	2019-07-10	2021-01-13	Hager-Electro Sas	Procédé permettant, à partir d'un appareil de protection, d'indiquer au moins une information de défaut relative à au moins un défaut détecté dans une ligne électrique, un tel appareil de protection et installation électrique comprenant au moins un tel appareil de protection
WO2021005234A1 (fr)	2019-07-10	2021-01-14	Hager-Electro Sas	Procédé permettant, a partir d'un appareil de protection, d'indiquer au moins une information de défaut relative a au moins un défaut détecte dans une ligne electrique, un tel appareil de protection et installation electrique comprenant au moins un tel appareil de protection

Also Published As

Publication number	Publication date
EP3048630B1 (fr)	2020-02-05
CN105826141A (zh)	2016-08-03
CN105826141B (zh)	2018-10-16
DE102015201009A1 (de)	2016-07-28

Publication	Publication Date	Title
DE602005000540T2 (de)	2007-11-08	Überspannungs-Schutzeinrichtung
EP0359912B1 (fr)	1994-03-09	Barrière électrique de sécurité antidéflagrante
EP1848020B1 (fr)	2009-06-10	Coupe-circuit actionné manuellement
EP1628317B1 (fr)	2009-12-30	Disjoncteur avec indication des fonctions de déclenchement courant de surcharge ou court-circuit et procédé correspondant
EP2016605B1 (fr)	2013-01-16	Disjoncteur pour la protection d'un moteur et/ou la protection de lignes
EP3048629A1 (fr)	2016-07-27	Disjoncteur de protection
DE102012204964A1 (de)	2013-10-02	Schutzschaltgerät und Schutzschaltgerätanordnung
EP3048630B1 (fr)	2020-02-05	Dispositif d'affichage et disjoncteur d'arc électrique
DE102019103036B4 (de)	2025-05-22	Ladesäule mit einem Kombi-Schaltmodul
DE102018210925B4 (de)	2022-06-09	Elektromechanisches Niederspannungs-Schutzschaltgerät
EP3537466A1 (fr)	2019-09-11	Appareil de commutation de protection électromécanique
EP3057118B1 (fr)	2017-05-17	Mecanisme de commutation, disjoncteur de protection anti-feu et systeme
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DE102023200524B3 (de)	2024-05-29	Anschlussklemme und Reiheneinbaugerät
EP4213175B1 (fr)	2024-06-12	Disjoncteur basse tension avec circuit imprime et prise de tension et procédé de montage
DE19603411A1 (de)	1997-08-14	Elektrisches Schaltgerät für Niederspannungsanlagen mit einer Kurzschlußmeldevorrichtung und Verfahren zur Kurzschlußüberprüfung derartiger Schaltgeräte
DE616358C (de)	1935-08-01	Vorrichtung zur UEberpruefung der Wirksamkeit der Erdung und Nullung
DE102016203505B4 (de)	2022-12-08	Auslösevorrichtung und elektromechanisches Schutzschaltgerät
DE102012215187B4 (de)	2022-11-10	Schutzschaltgerät
DE102017124219A1 (de)	2019-04-18	Überspannungsschutzgerät
DE102018221033A1 (de)	2020-06-10	Niederspannungs-Schutzschaltgerät
DE102023201130A1 (de)	2024-08-29	Kompakt-Reiheneinbaugerät sowie mehrpoliges Reiheneinbaugerät
DE102007058751A1 (de)	2009-04-23	Leistungsschalter

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2017-01-20	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
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