Nordbanen

The section from Hillerød to Elsinore still exists and is today the Little North Line operated by the railway company Lokaltog.

Thus when the first S-trains were introduced on the Klampenborg line in 1934 it was the Nordbanen tracks between København H and Hellerup that were electrified.

The Hillerød trains became a problem in the 1960s when capacity on the central S-train section became a limiting factor for service extensions on the western radials.

In order to free this capacity the line from Holte to Hillerød was electrified in 1968 and the steam trains replaced by S-trains.

Between 1950 and 1989 rush-hour and limited-stop on the radial ran under service letters C, Cc and Cx.