EP 0976138 A1 20000202 - ELECTROMAGNETIC SWITCHING DEVICE
Title (en)
ELECTROMAGNETIC SWITCHING DEVICE
Title (de)
ELEKTROMAGNETISCHES SCHALTGERÄT
Title (fr)
APPAREIL DE COMMUTATION ELECTROMAGNETIQUE
Publication
Application
Priority
- DE 9800975 W 19980406
- DE 19716380 A 19970418
Abstract (en)
[origin: DE19716380C1] The invention relates to an electromagnetic switching device (1) having an electromagnetic driving device (3) that acts as an auxiliary magnetic system, with which, on occurrence of a short-circuit current, the contact force is increased before the contacts (7, 8) are abruptly rifted. To achieve this, the driving device (3) actuates a lever (17) that is rotationally stored on the contact bridge support (11). This lever (17) displaces the contact bridge support (11), thus compressing a contact pressure spring (12) as well as another pressure spring (16).
IPC 1-7
IPC 8 full level
H01H 73/02 (2006.01); H01H 50/42 (2006.01); H01H 71/24 (2006.01); H01H 89/08 (2006.01); H01H 77/10 (2006.01)
CPC (source: EP US)
H01H 71/2409 (2013.01 - EP US); H01H 89/08 (2013.01 - EP US); H01H 71/2463 (2013.01 - EP US); H01H 77/101 (2013.01 - EP US)
Citation (search report)
See references of WO 9848436A1
Designated contracting state (EPC)
FR IT
DOCDB simple family (publication)
DE 19716380 C1 19981008; CN 1092392 C 20021009; CN 1242868 A 20000126; EP 0976138 A1 20000202; EP 0976138 B1 20020710; JP 2001520798 A 20011030; JP 4056567 B2 20080305; US 6150909 A 20001121; WO 9848436 A1 19981029
DOCDB simple family (application)
DE 19716380 A 19970418; CN 98801536 A 19980406; DE 9800975 W 19980406; EP 98929199 A 19980406; JP 54471098 A 19980406; US 40329299 A 19991015