EP 0743665 B1 20020918 - Circuit breaker
Title (en)
Circuit breaker
Title (de)
Leistungsschalter
Title (fr)
Disjoncteur
Publication
Application
Priority
DE 19517615 A 19950513
Abstract (en)
[origin: CA2172352A1] This circuit breaker has a cylindrically designed arcing chamber (1), filled with an insulant medium, which has a power current path, arranged in an insulant housing (12) and stretched along a longitudinal axis (2), with a fixed contact arrangement (3) arranged in the power current path, and with a contact arrangement (5) having a moving contact cage (8), both the fixed contact arrangement (3) and the contact arrangement (5) each being provided with a fixed erosion-resistant covering (7, 10). In addition, a blast volume which accumulates the increased pressure of the insulant medium which occurs during a breaking process is provided. The invention is to provide a circuit breaker in which the contact erosion is reduced by simple means. This is achieved in that in the on position, the contact cage (8) surrounds a guide part (4) designed to be electrically insulant, and in that the insulant housing (12) has a shoulder (13) which projects into the region between a first covering (7) and a second covering (10), and in that the two erosion-resistant coverings (7, 10) are arranged concentrically around the region of the moving contact cage (8).
IPC 1-7
IPC 8 full level
H01H 33/70 (2006.01); H01H 33/72 (2006.01); H01H 33/74 (2006.01); H01H 33/98 (2006.01); H01H 33/18 (2006.01)
CPC (source: EP KR US)
H01H 33/7015 (2013.01 - EP US); H01H 73/00 (2013.01 - KR); H01H 33/18 (2013.01 - EP US); H01H 33/72 (2013.01 - EP US); H01H 33/982 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
DE 19517615 A1 19961114; BR 9602218 A 19980407; CA 2172352 A1 19961114; CN 1076515 C 20011219; CN 1137160 A 19961204; DE 59609674 D1 20021024; EP 0743665 A2 19961120; EP 0743665 A3 19980422; EP 0743665 B1 20020918; JP H08321233 A 19961203; KR 100409412 B1 20040409; KR 960042804 A 19961221; US 5844189 A 19981201
DOCDB simple family (application)
DE 19517615 A 19950513; BR 9602218 A 19960510; CA 2172352 A 19960321; CN 96104490 A 19960513; DE 59609674 T 19960425; EP 96810265 A 19960425; JP 11675496 A 19960510; KR 19960015252 A 19960509; US 62164196 A 19960326