EP 0643401 B1 20020529 - Load-related electrical fuse
Title (en)
Load-related electrical fuse
Title (de)
Belastungsabhängige elektrische Präventivsicherung
Title (fr)
Fusible électrique dépendant de la charge
Publication
Application
Priority
DE 4330534 A 19930909
Abstract (en)
[origin: EP0643401A2] Load-dependent electrical safety fuse having an electronic ceramic (12) in a housing (11) from which connecting lines (14) are passed, for determining at least a first type of load of a device to be monitored, use being made of a ceramic, in brief a TDR ceramic (12), the electrically insulating state of which enters a semiconducting state as a function of time as a first type of load and of a second type of load. As a consequence, when the TDR ceramic (12) is supplied with DC voltage U via connecting lines (14), a current increase forms the trigger criterion which is met in the event of predeterminable conditions and determines a desired operating time tau . <IMAGE>
IPC 1-7
IPC 8 full level
H01H 85/00 (2006.01); H01C 7/04 (2006.01); H01C 7/10 (2006.01); H01C 7/13 (2006.01)
CPC (source: EP US)
H01C 7/045 (2013.01 - EP US); H01C 7/13 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0643401 A2 19950315; EP 0643401 A3 19970402; EP 0643401 B1 20020529; DE 4330534 A1 19950316; DE 59410123 D1 20020704; JP H07192599 A 19950728; US 6133819 A 20001017
DOCDB simple family (application)
EP 94202512 A 19940902; DE 4330534 A 19930909; DE 59410123 T 19940902; JP 21472794 A 19940908; US 84379097 A 19970421