Siemens SIMATIC S7-1500 System Manual page 40

Installation
4.2 Installing the mounting rail
Required accessories
You can use the following screw types for fastening of the mounting rails:
Table 4- 1 Required accessories
For ...
outer fixing screws
•
additional fixing screws
•
(for mounting rails > 482.6 mm)
Dimensions for the drill holes
Table 4- 2 Dimensions for the drill holes
"Standard" mounting rails
Length of the mounting rail Distance a
160 mm
245 mm
482.6 mm
530 mm
830 mm
Additional fixing screws (for mounting rails > 530 mm)
For mounting rails > 530 mm, we recommend using additional fixing screws at intervals
of ≤ 500 mm on the identification groove.
40
you can use ...
M6 fillister head screws according to
ISO 1207/ISO 1580 (DIN 84/DIN 85)
M6 hexagon head screws according to
ISO 4017 (DIN 4017)
Distance b
10 mm 140 mm
10 mm 225 mm
8.3 mm 466 mm
15 mm 500 mm
15 mm 800 mm
Explanation
Choose a suitable screw length for your
assembly.
You also need washers for cylinder
head screws with an internal diameter
of 6.4 mm and an external diameter of
11 mm in accordance with ISO 7092
(DIN 433).
"Longer" mounting rails
System Manual, 12/2014, A5E03461182-AC
Automation system