EP 0003973 B1 19810610 - LOW-TENSION POWER CIRCUIT BREAKER WITH ELECTROMAGNETIC RELEASE
Title (en)
LOW-TENSION POWER CIRCUIT BREAKER WITH ELECTROMAGNETIC RELEASE
Publication
Application
Priority
DE 2810987 A 19780310
Abstract (en)
[origin: US4260969A] A low voltage circuit breaker has an insulating housing which is split along a parting line into an upper part and a lower part. Disposed in the housing is an electromagnetic tripping device which comprises a fixed magnet yoke and a movably disposed armature. By means of trunnion (pivot) pins of rectangular cross-section the armature is mounted in bearing openings designed in the form of pocket-like cutouts in the wall surfaces of the lower part which limit the pole channels of the circuit breaker. The bearing surface of the bearing openings associated with a narrow surface of each trunnion pin may be composed of two subsurfaces disposed at an angle to each other so that an edge-like bearing results. For the attachment of the magnet yoke there is provided on the lower part of the housing an island-like projection which is spaced from the wall surfaces and against which the central part of the magnet yoke is caused to rest by a spring element. In addition, a protrusion of a conductor serves to secure the magnet yoke in its position.
IPC 1-7
IPC 8 full level
H01H 71/40 (2006.01); H01H 71/02 (2006.01); H01H 71/24 (2006.01)
CPC (source: EP US)
H01H 71/0214 (2013.01 - EP US); H01H 71/2472 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0003973 A1 19790919; EP 0003973 B1 19810610; DE 2810987 A1 19790913; DE 2810987 B2 19800417; DE 2810987 C3 19850103; JP S54126974 A 19791002; JP S6120100 B2 19860520; US 4260969 A 19810407
DOCDB simple family (application)
EP 79100414 A 19790212; DE 2810987 A 19780310; JP 2724279 A 19790308; US 1798079 A 19790306