| 摘要 |
<p>A multi-phase Medium Voltage Contactor (100) comprising: for each phase, a fixed contact (103) and a movable contact (104) positionable between an open position, in which it is operatively disconnected from the fixed contact (103), and a closed position in which it is operatively connected to the fixed contact (103); an electromagnetic actuator (10) operatively connected to the movable contact (104) and positionable between a first open position corresponding to the open position of the movable contacts (104), and a second closed position corresponding to the closed position of the movable contacts (104); a manual opening device (20) operatively connected to the electromagnetic actuator. The manual opening device (20) comprises a kinematic mechanism having: - an operating shaft (8); first lever means (3) movable by the operating shaft (8); second lever means (4) movable by the first lever means (3) and operatively coupled to the electromagnetic actuator, blocking means (5) movable by the first lever means (3) between a first position in which the blocking means (5) lock the second lever means (4) and a second position in which the second lever means (4) are released thereby determining the positioning of the electromagnetic actuator (10) from said closed position into said open position.</p> |
