Variable, with 5 rows of holes for universal skeleton structures or partial assembly|Simply position in the TS holes and secure|Rail for interior installation is required when installing in cm, TP mounting tip|Vertical TS enclosure profile on the outer mounting level, all round, height-offset installation|For SE, may additionally be mounted on the top horizontal section in the depth installation|Cm and TP via rails for interior installation in width, for inner mounting level, simply locate installation kit into component shelves and secure, one pack is sufficient for 2 component shelves, 100 kg surface load, static