Residual load disconnector switch for disconnecting an electrical connection to a propulsion current supply conductor for a transportation means , wherein the residual load disconnector switch comprises a feed line terminal , a discharge line terminal and at least one switching device , wherein - The residual load disconnector ∘ in the closed state, transmits a propulsion current for the transportation means as the main load, AND ∘ in the open state prevents a current and in particular the main load from being transmitted, - the switching device has a rotary switch body with at least one contact blade , wherein - the at least one contact blade is rotatable about an axis (A) arranged between the feed line terminal and the discharge line terminal and has end contact surfaces projecting in the radial direction, and wherein - the contact surfaces are in contact with the feed line terminal on the one hand and with the discharge line terminal on the other hand in a closed rotary position (S1) of the rotary switch body and are spaced apart from the feed line terminal and the discharge line terminal in an open rotary position (S2) of the rotary switch body , and - the residual load disconnector switch has a unidirectionally limited direction of rotation for executing the switching movements and can be actuated unidirectionally and cyclically in order to move the rotary switch body , in particular iteratively, from a closed rotary position (S1) into an open rotary position (S2) and back into a closed rotary position (S1), and so on, characterized in that - the residual load disconnector switch is provided and designed to disconnect an electrical connection to the propulsion current supply conductor in the de-energized state OR when a maximum predefined residual load is present which is present after the main load has been switched off; and in that - the residual load disconnector switch has a jump drive which is designed to cause the rotary switch body to make a jump-like switching rotation. - The residual load disconnector ∘ in the closed state, transmits a propulsion current for the transportation means as the main load, AND ∘ in the open state prevents a current and in particular the main load from being transmitted, ∘ in the closed state, transmits a propulsion current for the transportation means as the main load, AND ∘ in the open state prevents a current and in particular the main load from being transmitted, - the switching device has a rotary switch body with at least one contact blade , wherein - the at least one contact blade is rotatable about an axis (A) arranged between the feed line terminal and the discharge line terminal and has end contact surfaces projecting in the radial direction, and wherein - the contact surfaces are in contact with the feed line terminal on the one hand and with the discharge line terminal on the other hand in a closed rotary position (S1) of the rotary switch body and are spaced apart from the feed line terminal and the discharge line terminal in an open rotary position (S2) of the rotary switch body , and - the residual load disconnector switch has a unidirectionally limited direction of rotation for executing the switching movements and can be actuated unidirectionally and cyclically in order to move the rotary switch body , in particular iteratively, from a closed rotary position (S1) into an open rotary position (S2) and back into a closed rotary position (S1), and so on, characterized in that - the residual load disconnector switch is provided and designed to disconnect an electrical connection to the propulsion current supply conductor in the de-energized state OR when a maximum predefined residual load is present which is present after the main load has been switched off; and in that - the residual load disconnector switch has a jump drive which is designed to cause the rotary switch body to make a jump-like switching rotation. <EOS>