EP 0456586 B1 19941019 - Test circuit for a differential tripping device.
Title (en)
Test circuit for a differential tripping device.
Title (de)
Testschaltung für einen Differentialauslöser.
Title (fr)
Circuit test pour un déclencheur différentiel.
Publication
Application
Priority
FR 9006550 A 19900510
Abstract (en)
[origin: EP0456586A1] The test circuit (54) of a circuit-breaker with differential trip unit includes a first conducting strand (72) shaped as a test contact for a test switch, and as an elastic return element for the test button (56), and a second conducting strand (74) configured as a self-cutting contact for a protective switch (62) cooperating with a transmission component (64) of the mechanism (50). The two strands (72, 74) form part of a double spring (66) having two helical windings (68, 70) fitted coaxially on a common spindle (71) and connected to one another by an intermediate link (76) bearing on a support (78) of the casing (12). <IMAGE>
IPC 1-7
IPC 8 full level
H01H 83/04 (2006.01)
CPC (source: EP)
H01H 83/04 (2013.01); H01H 2083/045 (2013.01)
Designated contracting state (EPC)
AT DE ES GB IT
DOCDB simple family (publication)
EP 0456586 A1 19911113; EP 0456586 B1 19941019; AT E113140 T1 19941115; DE 69104647 D1 19941124; DE 69104647 T2 19950511; ES 2065654 T3 19950216; FR 2662019 A1 19911115; FR 2662019 B1 19920724
DOCDB simple family (application)
EP 91420141 A 19910429; AT 91420141 T 19910429; DE 69104647 T 19910429; ES 91420141 T 19910429; FR 9006550 A 19900510