EP 0333650 B1 19930526 - POWER TRANSMISSION IN AN ELECTROMAGNETIC TRIP DEVICE OF A FITTED CIRCUIT BREAKER
Title (en)
POWER TRANSMISSION IN AN ELECTROMAGNETIC TRIP DEVICE OF A FITTED CIRCUIT BREAKER
Publication
Application
Priority
CH 97688 A 19880315
Abstract (en)
[origin: EP0333650A1] A fitted circuit breaker which switches off in the event of excess current, comprises a trip device, which acts on a switching mechanism, having a yoke (12), a core (14), a coil (18), a coil former (16), a moveable armature (28) and an armature spring (22) which returns the armature in the event of interruption of the heavy excess current. The movement of the armature (28) is transmitted via a first spring limb (26) of the armature spring (22), which is designed as a helical spring and is supported in a rotationally fixed manner on the other end by means of a second spring limb (36), directly onto a trip slide for operating the switching mechanism. The first spring limb (26), connected to the armature (28), has means for the direct transmission of the armature movement, at least in the direction of the core (14) of the electromagnetic trip device. The trip slide operating the switching mechanism has means for absorbing the movement transmitted by the first spring limb (26). <IMAGE>
IPC 1-7
IPC 8 full level
H01H 71/24 (2006.01); H01H 71/74 (2006.01)
CPC (source: EP)
H01H 71/2463 (2013.01); H01H 71/74 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0333650 A1 19890920; EP 0333650 B1 19930526; AT E89949 T1 19930615; DE 58904454 D1 19930701; ES 2043090 T3 19931216
DOCDB simple family (application)
EP 89810164 A 19890302; AT 89810164 T 19890302; DE 58904454 T 19890302; ES 89810164 T 19890302