Siemens Simatic 6ES7 157-0AD81-0 A0 Series Manual page 127

Use in residential areas
If you use the described components in residential areas, you must ensure that
they comply with the limit value class B to EN 55011 with regard to the emission of
radio interference.
Measures suitable for achieving the radio interference level required by limit value
class B are:
S Installation in a grounded switching cabinet/switchbox
S Use of filters in supply lines
Overview of issued approvals
The following table contains an overview of the approvals and the areas of use for
the components of the DP/PA link and Y link couplers.
B.1.2 Standards and approvals for the DP/PA coupler Ex [i]
The DP/PA coupler Ex [i] complies with the standards and approvals specified in
Appendix B.1.1 with the following deviations:
ATEX approval
KEMA 01ATEX1028 X
in accordance with EN 50014:1997, EN 50020:1994, EN 50021:1999 and
EN 50284:1999
II 3 (1) G EEx nA [ia] IIC T4
The EC Declarations of Conformity are available for the relevant authorities at the
following address:
Siemens Aktiengesellschaft
Bereich Automatisierungs- und Antriebstechnik
A&D AS RD42
Postfach 1963
D-92209 Amberg
DP/PA Link and Y Link Bus Couplings
A5E00193841-01 1
Technical Specifications
B-5