In a system for contactlessly transmitting electrical energy to a mobile part movable on a floor, a stepped bore is provided in the floor. A frame part is situated on the step of the stepped bore. A charge unit is accommodated by the frame part and has a receiving part situated between upper and lower cover parts. A primary winding is situated on the inner side of the upper cover part and is fed by an electronic circuit supplied with electrical energy with the aid of a cable that is at least partially accommodated in a cable-routing part.
The cable-routing part is situated in a groove having a radial extension in relation to, and guided through the step of, the stepped bore, so that the cable is routed underneath the step of the stepped bore.