Cable Routing and Clamping Rails of Variable Length Rails for cable clamping and routing with variable length. Rails of Variable Length Cable clamp rails, depth-variable for TS, TE For TS and 19" mounting frames, allows flexible adjustment of their length to the fastener spacing between the two 19" mounting frames. To product Rails of Variable Length Cable clamp, variable for enclosure-independent mounting To mount cables independently of the enclosure, variable attachment from 450 to 800 mm for flexible cable clamping in two versions: as C rails or T-head rails. To product