Installing the S7-400
2-10
S7-400 and M7-400 Programmable Controllers, Installation Manual
C79000-G7076-C424-01
Space Required When Using Cable Channels and Fan Subassemblies
A cable duct or fan subassembly must be installed in the 19-inch pitch immediately
below the rack. Additional space for cable routing must be provided on both sides.
The following figure shows how much space you need to allow for when using a
cable duct or fan subassembly.
Cable duct/fan subassambly
440 mm
Mounting depth, fitted: 237 mm max.
522.5 mm (with cable duct)
19-inch reference level
542.5 (with fan subassembly)
Dimensions of the Racks
The following figure shows the dimensions for racks with 18 and 9 slots and the
positions of cutouts for screw mounting.
The cutouts are arranged according to the 19-inch standard.
465 mm 240 mm
482.5 mm 257.5 mm
290 mm 190 mm
40 mm
Depth = 27.5 mm without modules
Depth = 237.0 mm with modules
60 mm
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