Siemens SIMATIC Ident RF340R02 System Manual page 118

Planning the RF300 system
4.5 Guidelines for electromagnetic compatibility (EMC)
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 4-15
118
Filtering of the supply voltage
System Manual, 07/2017, C79000-G8976-C345-07
SIMATIC RF300