A current collecting device for an electrical load that can travel in a direction of travel along a conductor line, with at least two sliding contact pieces arranged on a rocker one after another in the direction of travel. The rocker is mounted on a rocker arm about a rotation axis extending perpendicularly to the travel direction, through which rocker arm the rocker can be moved towards a conductor for contact of the sliding contact pieces with an electrically conductive conductor strand of the conductor line. A conductor line system includes such a conductor line and at least one such electrical load. The current collecting device and conductor line system provide a reliable guiding of the current collecting device contact in the conductor strand of the conductor line, as well as reliable energy transmission.