A switching device for electric power distribution, electrically connectable to an electrical conductor, the switching device including a breaker electrically connectable to the electrical conductor, and an electrically conductive housing to which the breaker is mounted, the switching device providing a current path between the breaker and the electrical conductor, and the housing houses a guiding member for operating the breaker, the guiding member being movable in relation to the housing, the housing having an outer surface, wherein the housing has a smooth outer shape to distribute the electric field generated by the voltage of the current through the switching device. A switchgear including such a switching device.