Abstract: In a sliding contact retaining device for a contacting device of a rotor, the rotor can have a plurality of slip rings, wherein the contacting device serves to retain the sliding contact retaining device, and wherein an electrical contact can be established between the slip rings of the rotor and sliding contacts of the sliding contact retaining device, wherein using the sliding contact retaining device, sliding contact retainers can be disposed in a first and a second serial arrangement parallel to a rotational axis of the rotor, and wherein adjacently arranged slip rings can be contacted alternately from a sliding contact of the first serial arrangement and a sliding contact of the second serial arrangement, wherein the sliding contact retaining device has at least one holding device for receiving at least two serial arrangements of sliding contact retainers.