Abstract: A marker strip has a strip-shaped labelling strip formed of a first plastic material, which can be labelled on a first labelling side using a printer. A second side of the strip opposite the first side has a plurality of marker latching profiles formed of a second plastic material. The profiles are configured for latching in marker latching receptacles of serially arranged electrical devices. The marker strip has a main direction of extent and the latching profiles are arranged in the main direction of extent in a grid dimension on the second side of the labelling strip. The grid dimension in which the latching profiles are distributed on the second side of the labelling strip is smaller than or equal to 2 mm.