603 01 is a flexible, multi-conductor, unscreened, halogen-free control cable manufactured by the German company Helukabel. It has a thin, flame-retardant sheath, made from a PVC compound, and features stranded tinned copper conductors, which are insulated with PVC. It is UL approved and CSA certified for use in the North American market. The cable is suitable for fixed, protected installation in dry and damp interiors and is often used for power and control applications. It has a temperature range of -5oC to +80oC, and a voltage rating of 600 volts. Its diameter is 8.5mm, and it is available in lengths up to 1000 meters.