H - Electricity – 01 – H
Patent
H - Electricity
01
H
306/60
H01H 71/24 (2006.01) H01H 71/10 (2006.01) H01H 71/40 (2006.01) H01H 73/04 (2006.01) H01H 73/18 (2006.01)
Patent
CA 1257631
ABSTRACT MINIATURE ELECTRICAL CIRCUIT BREAKER WITH MULTIPLE MOVING CONTACTS AND THERMOMAGNETIC TRIP RELEASE The invention relates to a multiple moving contact assembly for a miniature circuit breaker with high ratings and a thermo- magnetic trip release. The moving contact part comprises two independent contact arms connected in parallel and mounted on a transverse spindle of the cradle and connected to the cover of the body by two braids situated in symmetrical lateral areas. The contact parts bear on a single stationary contact pad so as to create two contact points enabling the temperature rise to be reduced. The magnetic trip release coil is extended by a tail arranged as an adjustable support device of the bimetallic strip, through whose foot the current flows thickness-wise. The tail comprises a hinge between the junction point of the bimetallic strip and the coil, so as to allow relative movement of part of the tail due to the action of the thermal tripping threshold setting screw, the other part connected to the coil remaining appreciably stationary. Refer to figure 1.
514097
Bartolo William
Boillot Louis
Challande Rene
de Robertis Patrick
Duchenaud Jacky
Gerin Merlin
Robic Robic & Associes/associates
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