Switching device

摘要

Switching device (7) comprising a first contact (8) for making contact to a first circuit and a second contact (9) for making contact to a second circuit. The switching device further comprises a first transfer mechanism and a second transfer mechanism comprising a sector gear (12) and a rack gear (11), the rack gear (11) connected to the second contact (9) and the sector gear (12) arranged to transfer rotation of a rotable drive member (15) to movement of the rack gear (11).The rotable drive member comprises a first range of orientations wherein the first transfer mechanism drives the first contact (8) between a first connected position and a first disconnected position and wherein the sector gear (12) does not mesh with the rack gear (11). The rotable drive member also comprises a second range of orientations wherein the rack gear (11) meshes with the sector gear (12) and drives the second contact (9) between a second connected position to a second disconnected position.