EP 0143022 B1 19880601 - THERMAL AND MAGNETIC CIRCUIT BREAKER TRIPPING MECHANISM
Title (en)
THERMAL AND MAGNETIC CIRCUIT BREAKER TRIPPING MECHANISM
Publication
Application
Priority
- FR 8317015 A 19831021
- FR 8317016 A 19831021
Abstract (en)
[origin: EP0143022A1] 1. A thermal and magnetic tripping mechanism cooperating with the actuating mechanism of a multipole circuit breaker and comprising per pole a first electromagnetic tripping mechanism (38) and a second thermal tripping mechanism with a bimetal strip (36), said first tripping mechanism comprising a magnetic circuit with an air gap through which the induction flux generated by an operating coil flows, and a movable armature (50) capable of being attracted against a polar surface of the magnetic circuit when the current intensity flowing in the coil (42) exceeds a preset threshold causing tripping of the mechanism, said coil comprising one or more turns according to the tripping characteristics, a flexible connecting conductor (62) being securedly united directly by one of its ends to a movable contact arm (23) of the pole, to provide the electrical connection with the coil (42), characterized in that the other end of the flexible conductor (62) is connected by soldering to the bimetal strip (36), and that the intermediate part of the same flexible conductor constitutes the winding of the coil (42), the assembly being arranged to ensure fixed mounting of the electromagnetic tripping mechanism (38) fitted between the contact arm (23) and the thermal tripping mechanism with bimetal strip (36).
IPC 1-7
IPC 8 full level
H01H 71/16 (2006.01)
CPC (source: EP)
H01H 71/164 (2013.01); H01H 71/2472 (2013.01); H01H 71/40 (2013.01)
Designated contracting state (EPC)
AT BE CH DE GB IT LI NL SE
DOCDB simple family (publication)
EP 0143022 A1 19850529; EP 0143022 B1 19880601; DE 3471809 D1 19880707
DOCDB simple family (application)
EP 84401968 A 19841002; DE 3471809 T 19841002