EP 0293702 B1 19920506 - ELECTROMAGNETIC RELEASE FOR A FAULT CURRENT PROTECTIVE SWITCH
Title (en)
ELECTROMAGNETIC RELEASE FOR A FAULT CURRENT PROTECTIVE SWITCH
Publication
Application
Priority
- DE 3718204 A 19870529
- DE 3719946 A 19870615
Abstract (en)
[origin: EP0293702A1] An electromagnetic release is described for a fault current protective switch having an armature (1) and a yoke (2), both of which consist of a soft-magnetic material and, when the switch is closed, rest on one another with their pole surfaces, forming a minimal air gap (6), at least one of the pole surfaces of the armature (1) and/or at least one of the opposite surfaces of the yoke (2) having a thin coating of a hard material, particularly of titanium nitride. <IMAGE>
IPC 1-7
IPC 8 full level
H01H 17/24 (2006.01); H01H 50/16 (2006.01); H01H 69/00 (2006.01); H01H 71/32 (2006.01)
CPC (source: EP)
H01H 71/327 (2013.01)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 0293702 A1 19881207; EP 0293702 B1 19920506; DE 3719946 A1 19881222; DE 3719946 C2 19911031; DE 3870707 D1 19920611; ES 2031952 T3 19930101
DOCDB simple family (application)
EP 88108178 A 19880521; DE 3719946 A 19870615; DE 3870707 T 19880521; ES 88108178 T 19880521