Support rail made of steel, torsion-resistant, made from galvanized, profiled steel sheet with a zinc coating combined with polyester resin paint, ensures good corrosion protection. The universal support rail is suitable for light strips of all protection classes from IP20 to IP64. The flat cable is factory-installed and wired to a quick-mount connector. The maximum distance between the vertical suspensions is defined by the weight of the light strip. For a free-hanging light strip with 1500 units in electronic ballast version, the distance between the vertical suspensions can be increased to a maximum of 3.5 m. For greater distances (up to 4.5 m), there is the option to use either the suspension with the suspension profile SDT-AP or via an M-suspension using a central hanger SDT-ZA. Note: The suspensions are designed only for the horizontal arrangement of the light strips. For angled suspensions or other arrangements, please consult. Connection and mounting accessories, as well as rail end pieces and connectors, must be ordered separately.