EP 0792512 B1 19980520 - PROTECTIVE SAFETY COMBINATION
Title (en)
PROTECTIVE SAFETY COMBINATION
Title (de)
SCHÜTZSICHERHEITSKOMBINATION
Title (fr)
ENSEMBLE DE SECURITE A CONTACTEURS
Publication
Application
Priority
- DE 9501539 W 19951107
- DE 4441171 A 19941118
Abstract (en)
[origin: DE4441171C1] In the protective safety combination according to the invention, two safety or emergency shutdown contacts (Kb1, Ka2 or Ka1, Kb2) are connected upstream or downstream of the coils (a, b) of two auxiliary contactors. A capacitor (7) lying in parallel with the second auxiliary contactor b (in place of the third auxiliary contactor normally required) ensures by virtue of its memory function that the circuit functions in a self-monitoring way even when transient errors arise.
IPC 1-7
IPC 8 full level
H01H 47/00 (2006.01)
CPC (source: EP)
H01H 47/005 (2013.01)
Designated contracting state (EPC)
CH DE FR IT LI SE
DOCDB simple family (publication)
DE 4441171 C1 19960208; DE 59502282 D1 19980625; EP 0792512 A1 19970903; EP 0792512 B1 19980520; JP H10508977 A 19980902; WO 9616422 A1 19960530
DOCDB simple family (application)
DE 4441171 A 19941118; DE 59502282 T 19951107; DE 9501539 W 19951107; EP 95935853 A 19951107; JP 51643296 A 19951107