Mounting Holes For Rails - Siemens SIMATIC S7-300 Hardware And Installation Manual

Dimension of the mounting holes
The mounting hole dimensions for the rail are shown in the table below.
Table 6-3

Mounting holes for rails

"Standard" rail
32.5 mm
57.2 mm
a
Length of rail Dimension a
160 mm 10 mm
482.6 mm 8.3 mm
530 mm 15 mm
830 mm 15 mm
Fixing screws
You can use the following type of screw to mount the rails:
For ...
Lateral fixing screws
additional fixing screws
(only 2 m rail)
S7-300 Programmable Controller Hardware and Installation
A5E00105492-02
2 m rail
b
Dimension b –
140 mm
466 mm
500 mm
800 mm
Type of screw
Cylindrical head screw M6 to
ISO 1207/ISO 1580
(DIN 84/DIN 85)
M6 hexagonal head screw to
ISO 4017 (DIN 4017)
Cylindrical head screw M6 to
ISO 1207/ISO 1580
(DIN 84/DIN 85)
32.5 mm
32,5 mm
57.2 mm
57,2 mm
ca.
500 mm
_ _
15 mm
Description
Choose a suitable screw
length for your assembly.
You also need size 6.4
washers to ISO 7092
(DIN 433)
Installation
ca.
500 mm
_ _
15 mm
6-5