The invention relates to an induction generator (1) for a wireless switch, comprising a magnetic element (20) having a north pole contact section (27) and a south pole contact section (25), and comprising a coil core (11), which comprises pole contact sections (15) that can be contacted with the north pole contact section (27) and the south pole contact section (25), wherein the magnetic element (20) and the coil core (11) are arranged such as to be movable relative to one another, such that a reversal of the magnetic flux direction in the coil core (11) can be generated during a switch between a first (Y1) and a second idle position (Y3), which define a movement direction (X; Y) for the relative movement and in which the north pole contact section (27) and south pole contact section (25) contact the respective associated pole contact sections (15), respectively, characterized in that the induction generator (1) comprises a magnetizable sliding contact section (31) for the sliding guidance of the relative movement between the coil core (11) and magnetic element (20), said sliding contact section extending parallel to the movement direction (X;Y).