Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Contact-actuating means
Patent
1996-09-27
1999-08-03
Gellner, Michael L.
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Contact-actuating means
335 6, 335 13, 335132, 335171, 335189, 200574, H01H 6702
Patent
active
059330651
ABSTRACT:
The present invention relates to a control and signalling device for a protective switching apparatus of the relay switch type which is provided with power switches (1) and a protection assembly (4) and is capable of detecting faults (overloads or overcurrents) on each current path associated with a switch (1), this device being actuated by a manual control member (51) which can take an operating "run" position corresponding to closed contacts, a "stop" position corresponding to open contacts and a "trip" position corresponding to the position after detection of a fault, characterised by the fact that it comprises a mobile spring loaded cam (52) actuated by a triggering spring (54) and capable of--from the "run" position in which it is locked by an automatic interlock (55) and after the triggering and release of the interlock (55)--of turning the manual control member (51) which then actuates the coil switch (81).
REFERENCES:
patent: 3651436 (1972-03-01), Cooper et al.
patent: 5166653 (1992-11-01), Bosch et al.
patent: 5546062 (1996-08-01), Duchemin
Barrera Raymond
Gellner Michael L.
Schneider Electric SA
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