ABB Relion 620 Series Manual page 6

Conformity
This product complies with the directive of the Council of the European Communities on
the approximation of the laws of the Member States relating to electromagnetic
compatibility (EMC Directive 2004/108/EC) and concerning electrical equipment for use
within specified voltage limits (Low-voltage directive 2006/95/EC). This conformity is
the result of tests conducted by ABB in accordance with the product standards EN 50263
and EN 60255-26 for the directive, and with the product standards EN 60255-6 and EN
60255-27 for the directive. The IED is designed in accordance with the international
standards of the IEC 60255 series and ANSI C37.90. The DNP protocol implementation
in the IED conforms to "DNP3 Intelligent Electronic Device (IED) Certification Procedure
Subset Level 2", available at www.dnp.org.