What is the maximum cable length? digitalSTROM Support October 18, 2018 07:46 Updated Follow The maximum cable length within the distribution is 50 meters. It was tested with a typical load capacity of 4uF. Related articles How should an apartment be prepared so that a digitalSTROM installation is possible at a later date easily? Does digitalSTROM work in every electrical installation? What if there is no internet available in the fuse box? Can I use a free NYM cable or control line for the dS 485 bus? What is the maximum cable length for a dS485 bus?