An ice breaking pantograph is described, having a sliding element moveable between an operative position where it is engaged to an overhead train or tram power line and a non-operative position where it is separated from the overhead power line; at least one arm, having a first end which can be hinged to a train or tram vehicle and a second end connected to the sliding element; an active actuator on the arm to move it in order to move the sliding element between the operative position and the non-operative position; a vibrator operating on the sliding element and activatable in the operative position of the sliding element to remove ice and/or snow from the overhead power line.