EP 0617836 B1 19951108 - AUTOMATIC CUTOUT WITH AN ARC EXTINGUISHING CHAMBER.
Title (en)
AUTOMATIC CUTOUT WITH AN ARC EXTINGUISHING CHAMBER.
Title (de)
LEITUNGSSCHUTZSCHALTER MIT EINER LICHTBOGENKAMMER.
Title (fr)
COUPE-CIRCUIT AUTOMATIQUE COMPORTANT UNE BOITE D'EXTINCTION D'ARC.
Publication
Application
Priority
- DE 9115905 U 19911221
- DE 9201006 W 19921204
Abstract (en)
[origin: WO9313538A1] The automatic cutout switch has inside its housing (1) an arc chamber (2) containing a stack of quenching plates (3) which communicates behind a slotted (2b) separating wall (2a) with an outwardly open blow-off chamber (4). In order to reduce considerably the ejection of hot conductive arc gases and also largely to prevent the exit of flames from the housing at breaking capacity, the blow-off chamber (4), consisting of two half shells (1a, 1b) of the housing (1), has several staggered walls (4a) transversely to the main direction of flow, like a labyrinthe which considerably lengthen the gas flow path. In addition, the walls (4a) have, on their facing upper sides substantially parallel to the separating plane of the half-shell (1a, 1b), comb-like projecting pegs (4a') which cool the arc gases and cause them to eddy. The walls (4a) are preferably arranged at least partially to inter-engage at a short distance from each other alternately at each half-section (1a, 1b).
IPC 1-7
IPC 8 full level
H01H 9/34 (2006.01); H01H 73/18 (2006.01)
CPC (source: EP)
H01H 9/342 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI
DOCDB simple family (publication)
WO 9313538 A1 19930708; AT E130121 T1 19951115; CZ 151694 A3 19941116; CZ 283892 B6 19980715; DE 59204283 D1 19951214; DE 9115905 U1 19930422; EP 0617836 A1 19941005; EP 0617836 B1 19951108; ES 2079898 T3 19960116; HU 213360 B 19970528; HU 9401476 D0 19940829; HU T67986 A 19950529; PL 169428 B1 19960731
DOCDB simple family (application)
DE 9201006 W 19921204; AT 92923693 T 19921204; CZ 151694 A 19921204; DE 59204283 T 19921204; DE 9115905 U 19911221; EP 92923693 A 19921204; ES 92923693 T 19921204; HU 9401476 A 19921204; PL 30416892 A 19921204