Phoenix Contact 1207639 The DIN rail has a perforated design according to EN 60715 specifications and is made of galvanized steel with a thick passivation layer, featuring a standard profile mounting type in silver color. The tolerances for the dimensions are as follows: the profile tolerance due to burr or sharp edges is within ±0.5mm, initial dimensions can vary by ±0.5mm, hole pattern and position also have a ±0.5mm variation, while there are minimum length requirements of 20mm for unperforated sections and 100mm for perforated ones, with the last punching point at Phoenix Contact Contact limited to less than 1750mm.