A MEDIUM VOLTAGE SWITCHING APPARATUS

A switching apparatus (1) for medium voltage electric systems, said switching apparatus comprising one or more electric poles (2), wherein, for each electric pole, said switching apparatus comprises: - a first pole terminal (11), a second pole terminal (12) and a ground terminal (13), said first pole terminal (11) being electrically couplable with a first conductor of an electric line, said second pole terminal (12) being electrically couplable to a second conductor of said electric line and said ground terminal (13) being electrically couplable to a grounding conductor; - a first fixed contact member (5A) and a first movable contact member (6A), said first fixed contact member being electrically connected to said first pole terminal (11) and including a first fixed contact (5), said first movable contact member (6A) being electrically connected to said second pole terminal (12) and including a first movable contact (6), said first movable contact member (6A) being reversibly movable about a corresponding first rotation axis (A1); - a second fixed contact member (8A) and a second movable contact member (9A), said second fixed contact member (8A) being electrically connected to said first pole terminal (11) and including a second fixed contact (8), said second movable contact member (9A) including a second movable contact (9) and being reversibly movable along a corresponding translation axis (A); - a vacuum chamber (10), in which said second fixed contact (8) and said second movable contact (9) are enclosed and can be coupled or decoupled; - a motion transmission mechanism for actuating said second movable contact member. 27 CA 3136763 2021-10-27