EP 1057194 A1 20001206 - ELECTRIC SWITCHING DEVICE WITH CLOSED-CIRCUIT PROTECTION
Title (en)
ELECTRIC SWITCHING DEVICE WITH CLOSED-CIRCUIT PROTECTION
Title (de)
ELEKTRISCHE SCHALTEINRICHTUNG MIT RUHESTROMÜBERWACHUNG
Title (fr)
DISPOSITIF DE COMMUTATION ELECTRIQUE AVEC SURVEILLANCE DE COURANT DE REPOS
Publication
Application
Priority
DE 9702976 W 19971218
Abstract (en)
[origin: WO9933077A1] The invention relates to an electric switching device with a signalling element which triggers a switching function when the closed circuit is interrupted, a relay safety assembly being switched into the closed circuit. The incoming and outgoing electrical lines from the closed circuit to the signalling element are each surrounded by a safety shielding which is connected to the earth potential of the signalling element at one end and to the protective-conductor terminal of the relay safety assembly at the other end. The secondary circuit of the transformer in the relay safety assembly is connected to the safety shielding on one side.
IPC 1-7
IPC 8 full level
E05F 15/44 (2015.01); H01H 9/54 (2006.01); H01H 47/00 (2006.01)
CPC (source: EP US)
E05F 15/44 (2015.01 - EP US); H01H 47/005 (2013.01 - EP US); E05Y 2900/132 (2013.01 - EP US)
Citation (search report)
See references of WO 9933077A1
Designated contracting state (EPC)
AT DE ES FR GB IT NL SE
DOCDB simple family (publication)
WO 9933077 A1 19990701; AT E223106 T1 20020915; DE 59708091 D1 20021002; EP 1057194 A1 20001206; EP 1057194 B1 20020828; ES 2183234 T3 20030316; JP 2001527269 A 20011225; US 6337786 B1 20020108
DOCDB simple family (application)
DE 9702976 W 19971218; AT 97953651 T 19971218; DE 59708091 T 19971218; EP 97953651 A 19971218; ES 97953651 T 19971218; JP 2000525899 A 19971218; US 48550800 A 20000210