EP 0243980 B1 19920729 - CONTACT ARRANGEMENT FOR CURRENT LIMITING LOW-TENSION POWER CIRCUIT BREAKERS
Title (en)
CONTACT ARRANGEMENT FOR CURRENT LIMITING LOW-TENSION POWER CIRCUIT BREAKERS
Publication
Application
Priority
DE 3614866 A 19860502
Abstract (en)
[origin: EP0243980A2] The contact arrangement for current limiting low-tension power circuit breakers has a moving contact piece which interacts with a fixed contact piece, in which arrangement a large acceleration of the contact pieces at the start of contact opening causes a rapid increase of the arc voltage. In this way, contact opening is accelerated at the start of the contact movement and the angle between the two contact surfaces is in this way rapidly increased, in that the end sections of the contact arms carrying the contact pieces are supported on the contact arms such that they can pivot and are spring-loaded. <IMAGE>
IPC 1-7
IPC 8 full level
H01H 77/10 (2006.01)
CPC (source: EP)
H01H 77/102 (2013.01)
Citation (examination)
US 3534305 A 19701013 - STROBEL ALBERT
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI SE
DOCDB simple family (publication)
EP 0243980 A2 19871104; EP 0243980 A3 19890215; EP 0243980 B1 19920729; AT E78953 T1 19920815; DE 3614866 A1 19871105; DE 3614866 C2 19890406; DE 3780690 D1 19920903
DOCDB simple family (application)
EP 87106355 A 19870430; AT 87106355 T 19870430; DE 3614866 A 19860502; DE 3780690 T 19870430