Siemens SINAMICS S120 Equipment Manual page 50

Electrical installation
4.3 Introduction to EMC
Definition of environments 1 and 2
Figure 4-1
● Environment 1:
● Environment 2:
Definition of categories C1 to C4
Figure 4-2
50
Definition of environments 1 and 2
Residential buildings or locations at which the drive system is connected to a low-voltage
public network without a transformer.
Industrial locations supplied by a medium-voltage network via a separate transformer.
Categories C1 to C4
S120 Cabinet Modules Equipment Manual
Manual, (GH5), 10/2008, A5E00427098A