Network Router User Manual

Installing the S7-400
2-11
Automation System S7-400 Hardware and Installation
A5E00850741-01
Space Required When Using Cable Channels and Fan Subassemblies
A c able 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 y ou need to allow for when using a
cable duct or fan subassembly.
Cable duct/fan subassembly
440 mm
Mounting depth, fitted: max. 237 mm
19-inch reference level
1 2 3 4 5 6 7 8 9 101112131415161718
523 mm (with cable duct)
543 mm (with fan subassembly)
Dimensions of the Racks
The following figure shows the dimensions for racks with 18, 9 and 4 slots and the
positions of cutouts for screw mounting.
The cutouts are arranged according to the 19-inch standard.