Circuit interrupter with a trip mechanism having a biased latch

Details Circuit interrupter with a trip mechanism having a biased latch Circuit interrupter with a trip mechanism having a biased latch

H - Electricity

01

H

H01H 71/50 (2006.01) H01H 9/02 (2006.01) H01H 71/02 (2006.01) H01H 71/08 (2006.01) H01H 71/12 (2006.01) H01H 71/40 (2006.01) H01H 71/52 (2006.01) H01H 77/10 (2006.01)

Patent

CA 2383097

A circuit interrupter including a housing, separable main contacts disposed in the housing, and an operating mechanism disposed in the housing and interconnected with the contacts. The operating mechanism includes a cradle for moving from a first position to a second position in the event of a tripping operation and thereby causing the contacts to open. A trip mechanism is disposed in the housing and includes a rotatable trip bar assembly that, when selectively rotated, generates a tripping operation. The trip mechanism includes a rotatable latch that engages the trip bar assembly and the cradle and keeps the cradle in the first position when a tripping operation has not occurred. The trip mechanism further includes a tension member that is positioned to bias the latch in a first rotational direction.

L'invention porte sur un interrupteur comprenant un corps, des contacts principaux séparables placés dans le corps et un mécanisme d'actionnement interconnecté aux contacts. Le mécanisme d'actionnement comprend un arceau se déplaçant d'une première à une seconde position lors du réarmement et provoquant ainsi l'ouverture des contacts. Le mécanisme de réarmement est placé dans le corps et comporte un ensemble barre de déclenchement rotatif qui, selon la rotation choisie, génère le réarmement. Ce mécanisme de réarmement comprend un verrou rotatif qui vient en contact avec l'ensemble barre de déclenchement et l'arceau et maintient l'arceau dans une première position lorsqu'il n'y pas eu réarmement. Ce mécanisme comprend également un élément de tension positionné de façon à solliciter le verrou dans un premier sens de rotation.

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