Siemens SIMATIC RF 300 System Manual page 50

RF 300 system planning
4.6 EMC Guidelines
Filtering of the supply voltage
External interference from the mains can be prevented by installing line filters. Correct
installation is extremely important, in addition to appropriate dimensioning. It is essential that
the line filter is mounted directly at the cabinet inlet. As a result, interference is filtered
promptly at the inlet, and is not conducted through the cabinet.
Figure 4-12
4-34
Filtering of the supply voltage
System Manual, 05/2005, (4)J31069 D0166-U001-A1-7618, --
RF 300