Siemens SIMATIC S7-1500 Automation System System Manual page 167

Use in residential areas
Note
The S7-1500 automation system is intended for use in industrial areas; use in residential
areas may have an impact on radio/TV reception.
If you want to use the S7-1500 automation system in residential areas, you must ensure that
its radio interference emission complies with limit value class B in accordance with
EN 55011.
Suitable measures for achieving RF interference level Class B include, for example:
● Installation of the S7-1500 automation system in grounded switchboards/control cabinets
● Use of noise filters in the supply lines
S7-1500 Automation System
System Manual, 01/2013, A5E03461182-01
Technical specifications
15.1 Standards and Approvals
167