EP 4367704 A1 20240515 - CIRCUIT BREAKER DEVICE
Title (en)
CIRCUIT BREAKER DEVICE
Title (de)
SCHUTZSCHALTGERÄT
Title (fr)
DISJONCTEUR DE PROTECTION
Publication
Application
Priority
- DE 102021210829 A 20210928
- EP 2022076036 W 20220920
Abstract (en)
[origin: WO2023051962A1] The invention relates to a circuit breaker for protecting an electric low-voltage circuit, comprising: - a housing with grid-side connections and at least one load-side connection and - a mechanical separating contact unit which is connected to an electronic interruption unit in series, wherein - the mechanical separating contact unit is paired with the load-side connection, and the electronic interruption unit is paired with the grid-side connections, - the level of the current in the low-voltage circuit, in particular between the grid-side phase conductor connection and the load-side phase conductor connection, is ascertained, - a process for preventing a current flow in the low-voltage circuit is initiated if current thresholds and/or current/time thresholds are exceeded, and - a series circuit consisting of a measuring impedance and a switch is provided in the circuit breaker between conductors of the low-voltage circuit such that when the switch is closed and the electronic interruption unit is switched to a low-ohmic state, a measuring current flows through the electronic interruption unit via the grid-side connections.
IPC 8 full level
H01H 9/54 (2006.01); H01H 71/12 (2006.01)
CPC (source: EP)
H01H 9/547 (2013.01); H01H 9/548 (2013.01); H01H 71/12 (2013.01)
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)
EP 4156217 A1 20230329; CN 118043926 A 20240514; CN 118103935 A 20240528; CN 118160059 A 20240607; DE 102021210829 A1 20230330; EP 4367704 A1 20240515; EP 4374403 A1 20240529; EP 4377981 A1 20240605; WO 2023051962 A1 20230406; WO 2023052163 A1 20230406; WO 2023052188 A1 20230406
DOCDB simple family (application)
EP 21216126 A 20211220; CN 202280065334 A 20220920; CN 202280065374 A 20220919; CN 202280065408 A 20220629; DE 102021210829 A 20210928; EP 2022067897 W 20220629; EP 2022075901 W 20220919; EP 2022076036 W 20220920; EP 22744392 A 20220629; EP 22786794 A 20220919; EP 22790302 A 20220920