EP 0844632 A3 19990421 - Contact arrangement for ground fault circuit interrupter
Title (en)
Contact arrangement for ground fault circuit interrupter
Title (de)
Kontaktanordnung für Fehlerstromschutzschalter
Title (fr)
Agencement de contact pour disjoncteur à courant de défaut
Publication
Application
Priority
DE 29620519 U 19961125
Abstract (en)
[origin: EP0844632A2] The arrangement of contacts operated by relay from a single-phase summing current transformer incorporates a pivotable lever (20) bringing the moving contact (21) up against the fixed contact (22) on one limb (23) of a U-shaped conductor enclosing a permanent magnet (26). Normal current flows through the contacts from a terminal (14) and a hook (16) engaged with the lever. Excessive current causes the lever to be pivoted about its point of engagement (19). The lines of force of the magnet are directed at right angles to the arc, reinforcing the field produced by the arc so that its root is displaced rapidly from the contacts.
IPC 1-7
IPC 8 full level
H01H 9/44 (2006.01); H01H 83/02 (2006.01)
CPC (source: EP)
H01H 9/443 (2013.01); H01H 83/02 (2013.01)
Citation (search report)
- [XY] US 2611059 A 19520916 - IMMEL RALPH B, et al
- [DY] DE 3915127 C1 19900906
- [Y] DE 4339425 A1 19950524 - KOPP HEINRICH AG [DE]
- [X] US 4835502 A 19890530 - MINNETTE JEFFREY C [US]
- [X] DE 3347042 A1 19850704 - BBC BROWN BOVERI & CIE [DE]
- [DA] EP 0567614 B1 19960814 - SQUARE D CO [US]
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DE 29620519 U1 19970206; EP 0844632 A2 19980527; EP 0844632 A3 19990421
DOCDB simple family (application)
DE 29620519 U 19961125; EP 97112772 A 19970724