Patent ID: 8552822

Claim:
A multi-phase Medium Voltage Contactor comprising: for each phase, a fixed contact and an associated movable contact positionable between an open position, in which it is operatively disconnected from said fixed contact, and a closed position, in which it is operatively connected to said fixed contact; an electromagnetic actuator operatively connected to said movable contact and positionable between a first, open position corresponding to the open position of said movable contact, and a second, closed position corresponding to said closed position of said movable contact; a manual opening device operatively connected to said actuator; wherein said manual opening device comprises a kinematic mechanism having: an operating shaft; first lever means movable by said operating shaft; second lever means movable by said first lever means and operatively coupled to said electromagnetic actuator, blocking means movable by said first lever means between a first position in which said blocking means lock said second lever means and a second position in which said second lever means are released to exert force on a pin of the electromagnetic actuator, thereby determining the positioning of said electromagnetic actuator from said closed position into said open position.