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S7-300 Automation System, Hardware and Installation: CPU 31xC and CPU 31x
A5E00105492-03
6-5
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The mounting hole dimensions for the rail are shown in the table below.
Table 6-3 Mounting holes for rails
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32.5 mm
57.2 mm
a
b
32,5 mm
57,2 mm
15 mm
ca.
500 mm
ca.
500 mm
15 mm
_ _
__
32.5 mm
57.2 mm
Length of rail Dimension a Dimension b
160 mm 10 mm 140 mm
482.6 mm 8.3 mm 466 mm
530 mm 15 mm 500 mm
830 mm 15 mm 800 mm
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You can use the following type of screw to mount the rails:
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Cylindrical head screw M6 to
ISO 1207/ISO 1580
(DIN 84/DIN 85)
Lateral fixing screws
M6 hexagonal head screw to
ISO 4017 (DIN 4017)
additional fixing screws
(only 2 m rail)
Cylindrical head screw M6 to
ISO 1207/ISO 1580
(DIN 84/DIN 85)
Choose a suitable screw
length for your assembly.
You also need size 6.4
washers to ISO 7092
(DIN 433)
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