Rail Systems Support Rails For the installation of heavy installed equipment such as transformers and post isolators. Support Rails Support Rail 48 x 26 mm for VX, VX SE, PC, IW, AX For heavy installed equipment such as transformers. The T-head screw and longitudinal slots in the support rail accommodate all mounting dimensions. Show products Support Rails System Support Rails For heavy installed equipment such as transformers. T-head screw and slot in the support rail accommodate all mounting dimensions. Show products Support Rails Support rail 75 x 20 mm for VX, TS, VX SE For heavy equipment such as base isolators or transformers. Show products Support Rails Support Rail 65 x 42 mm for VX, TS, VX SE For heavy equipment such as base isolators or transformers. Show products