Unidrive M / HS Frame 7 to 10 Power Installation Guide 113
Issue Number: 5
Safety information Product information Mechanical installation Electrical installation
Technical data
UL listing information
Key (shown in decreasing order of permitted emission level):
E2R EN 61800-3 second environment, restricted distribution (Additional measures may be 
required to prevent interference)
E2U EN 61800-3 second environment, unrestricted distribution
I Industrial generic standard EN 61000-6-4
EN 61800-3 first environment restricted distribution (The following caution is required by EN 
61800-3)
R Residential generic standard EN 61000-6-3
EN 61800-3 first environment unrestricted distribution
EN 61800-3 defines the following:
• The first environment is one that includes residential premises. It also includes establishments 
directly connected without intermediate transformers to a low-voltage power supply network 
which supplies buildings used for residential purposes.
• The second environment is one that includes all establishments other than those directly 
connected to a low-voltage power supply network which supplies buildings used for residential 
purposes.
• Restricted distribution is defined as a mode of sales distribution in which the manufacturer 
restricts the supply of equipment to suppliers, customers or users who separately or jointly have 
technical competence in the EMC requirements of the application of drives.
EN 61800-3:2004+A1:2012
The 2004 revision of the standard uses different terminology to align the requirements of the 
standard better with the EC EMC Directive.
Power drive systems are categorized C1 to C4:
Note that category 4 is more restrictive than E2R, since the rated current of the PDS must exceed 
400 A or the supply voltage exceed 1000 V, for the complete PDS.
This is a product of the restricted distribution class according to IEC 61800-3. In a 
residential environment this product may cause radio interference in which case the user 
may be required to take adequate measures.
Category Definition
Corresponding code 
used previously
C1 Intended for use in the first or second environments R
C2
Not a plug-in or movable device, and intended for use in 
the first environment only when installed by a 
professional, or in the second environment
I
C3
Intended for use in the second environment, not the first 
environment
E2U
C4
Intended for use in the second environment in a system 
rated at over 400 A or in a complex system
E2R
Unidrive M frame7 to 10 Power Installation Guide issue5.book  Page 113  Tuesday, May 24, 2016  11:52 AM