EP 0616350 B1 19970730 - Automatic cutout
Title (en)
Automatic cutout
Title (de)
Leitungsschutzschalter
Title (fr)
Disjoncteur de protection de ligne
Publication
Application
Priority
CH 84893 A 19930319
Abstract (en)
[origin: EP0616350A1] The line protection circuit breaker contains a magnetic short-circuit current release and a thermal overcurrent release having a bimetallic strip (10). In the case of this line protection circuit breaker, the line current is carried in a current path which, in addition to two contacts (44, 48) (which can move relative to one another) and a section of the bimetallic strip (10), also has an electromagnetic coil (22) and a section of a yoke (which contains a ferromagnetic material) of the short-circuit current release. The magnetic field which is produced by the coil (22) in the event of a short-circuit current is used to attract the armature (24) of the short-circuit current release and for magnetic blowing of a switching arc which is formed while the contacts (44, 48) are opening. The live yoke section (18) is formed from a non-ferromagnetic metallic material whose mechanical strength is comparable to the ferromagnetic material of the yoke but has a much higher electrical conductivity than this material. The line protection circuit breaker is distinguished by a very high rated current capacity with a compact construction. <IMAGE>
IPC 1-7
IPC 8 full level
H01H 71/40 (2006.01)
CPC (source: EP)
H01H 71/40 (2013.01)
Designated contracting state (EPC)
CH DE FR GB LI
DOCDB simple family (publication)
EP 0616350 A1 19940921; EP 0616350 B1 19970730; CH 685524 A5 19950731; DE 59403501 D1 19970904
DOCDB simple family (application)
EP 94103312 A 19940304; CH 84893 A 19930319; DE 59403501 T 19940304