EP 4229667 A1 20230823 - CIRCUIT BREAKER DEVICE AND METHOD
Title (en)
CIRCUIT BREAKER DEVICE AND METHOD
Title (de)
SCHUTZSCHALTGERÄT UND VERFAHREN
Title (fr)
PROCÉDÉ ET DISPOSITIF DISJONCTEUR
Publication
Application
Priority
- DE 102020216416 A 20201221
- EP 21216109 A 20211220
- EP 2021087071 W 20211221
Abstract (en)
[origin: WO2022136421A1] The invention relates to a circuit breaker device for a low-voltage electric circuit, said circuit breaker device comprising a mechanical break contact unit (MK) which is connected in series to an electronic interrupting unit (EU). The mechanical break contact unit (MK) can be switched by breaking contacts to prevent current from flowing or by closing the contacts to allow current to flow in the low-voltage circuit. The electronic interrupting unit (EU) can be switched using semiconductor-based switching elements into a high-impedance state of the switching elements in order to prevent current from flowing or into a low-impedance state of the switching elements in order to allow current to flow in the low-voltage circuit. The amplitude of the current in the low-voltage circuit is ascertained such that instantaneous current values are provided. If the instantaneous current value is exceeded when compared with at least one current threshold value, prevention of current flowing in the low-voltage circuit is initiated. The at least one current threshold value is adapted according to the amplitude of the current in the low-voltage circuit.
IPC 8 full level
H01H 9/54 (2006.01)
CPC (source: EP US)
H01H 9/542 (2013.01 - US); H01H 9/547 (2013.01 - EP); H01H 9/548 (2013.01 - EP US); H01H 33/593 (2013.01 - US); H01H 2009/544 (2013.01 - US)
Citation (search report)
See references of WO 2022136421A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022136421 A1 20220630; EP 4229667 A1 20230823; US 2024038466 A1 20240201
DOCDB simple family (application)
EP 2021087071 W 20211221; EP 21843953 A 20211221; US 202118258611 A 20211221