Mounting Rules; Minimum Clearances In The Control Cabinet - Siemens Simatic CFU Commissioning Manual

Appendix
A.3 Mounting rules
A.3

Mounting rules

A.3.1

Minimum clearances in the control cabinet

Install the mounting rail so that sufficient space remains for the installation and heat removal
of the Compact Field Unit remains.
Observe the following points if you plan to install the Compact Field Unit:
● Ensure that the space in the control cabinet or components in the surrounding area is
sufficient for the heat to be removed.
See the following table
● When mounting on a mounting rail, pay attention to the distance between the fixing points:
maximum distance 500 mm - measured between the first and the last fixing point
● Leave sufficient space for the wiring and the communication cable connections.
● Route the cables away from the CFU as follows:
– Horizontal installation (see figure below):
– Vertical installation (interface dome at bottom; rotated 90° counterclockwise compared
Table A-7 Minimum clearances in the control cabinet
Left
10 mm
148
Route cables downwards.
to the figure below):
Route cables to the right.
Top
20 mm
Bottom
20 mm
Commissioning Manual, 07/2018, A5E39252870-AC
Right
10 mm
SIMATIC CFU