Appendix
A.2 Definition of the EMC Environment and Categories
Control Units CU240S
210
Operating Instructions, 07/2008 - FW 3.2, A5E00766042B AD
A.2
Definition of the EMC Environment and Categories
Classification of EMC performance
The EMC environment and categories are defined within the EMC Product Standard
EN 61800-3, as follows:
First Environment
An environment that includes domestic premises and establishments that are connected
directly to a public low-voltage power supply network without the use of an intermediate
transformer.
Note
For example: houses, apartments, commercial premises or offices in a residential building.
Second Environment
An environment that includes industrial premises and establishments that are not connected
directly to a public low-voltage power supply network.
Note
For example: industrial and technical areas of buildings fed from a dedicated transformer.
Category C1
Power Drive System (PDS) of rated voltage less than 1000 V intended for use in the First
(Domestic) Environment.
Category C2
Power Drive System (PDS) of rated voltage less than 1000 V, which is neither a plug in
device nor a movable device, and when used in the First (Domestic) Environment, is only
intended to be installed and commissioned by a professional.
Note
A professional is a person or an organization having necessary skills in installing and/or
commissioning a Power Drive System (PDS), including their EMC aspects.
