Siemens SINAMICS S150 Operating Instructions Manual page 49

Figure 4-2
Table 4-1
Environment 1
Environment 2
Table 4-2
Category C1
Category C2
Category C3
Category C4
Drive converter cabinet units
Operating Instructions, 07/07, A5E00288214A
Definition of categories C1 to C4
Definition of environments 1 and 2
Definition of environments 1 and 2
Residential buildings or locations at which the drive system is connected to
a public low-voltage supply network without a transformer.
Industrial locations supplied by a medium-voltage network via a separate
transformer.
Definition of categories C1 to C4
Definition of categories C1 to C4
Rated voltage <1000 V; unrestricted use in environment 1.
Rated voltage for stationary drive systems <1000 V; for use in environment
2. For use in environment 1 only when sold and installed by skilled
personnel.
Rated voltage <1000 V; use in environment 2 only.
Rated voltage ≥1000 V or for rated currents ≥ 400 A in complex systems in
environment 2.
Electrical installation
4.4 Introduction to EMC
49