The invention relates to a switching device comprising:—a first assembly (1) comprising an actuation member (10) that can take a rest position and an actuation position;—a second assembly (2) mounted on the first assembly (1) and comprising a mobile bridge (22) bearing mobile contacts (221) actuated with respect to fixed contacts (201) between an opening position and a closing position so as to respectively open or close an electrical circuit according to the position of the actuation member (10), in which:—the mobile bridge (22) is actuatable in rotation about an axis of rotation (A) and can take a third position so as to open the electrical circuit when the first assembly (1) is mechanically disconnected from the second assembly (2).