Siemens SIMATIC ET 200S Operating Instructions Manual page 52

Installing
4.1 Basic principles of installation
Mounting rail
The ET 200S distributed I/O system is installed on a mounting rail according to EN 60715
(35 x 7.5 mm or 35 x 15 mm).
Appropriate surface designs are:
● Steel strip according to Appendix A of EN 60715, or
● Tinned steel strip. We recommend the following mounting rails for this purpose:
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– 6ES5710-8MA11 (length: 483 mm)
– 6ES5710-8MA21 (length: 530 mm)
– 6ES5710-8MA31 (length: 830 mm)
– 6ES5710-8MA41 (length: 2000 mm)
Note
If you use mounting rails from other manufacturers, please check whether they have
the required properties for your climatic ambient conditions.
Note
If the ET 200S distributed IO device is exposed to increased vibrations and shock, we
recommend that you screw the mounting rail to the mounting surface at intervals of
200 mm.
To prevent the ET 200S distributed I/O system from slipping sideways, we
recommend that you apply a mechanical hold-down (e.g. with grounding terminal,
8WA2011-1PH20) at both ends of the device.
If you install the rail on grounded, zinc-plated mounting plates, there is no need to
ground the rail separately.
Operating Instructions, 08/2008, A5E00515771-06
ET 200S