Siemens SINAMICS G120C DP

• For installation altitudes 2000 m ... 4000m above sea level, the following applies:
– Connection to a TN line system with grounded neutral point is permissible.
– TN systems with grounded line conductor are not permitted.
– The TN line system with grounded neutral point can also be supplied using an isolation
transformer.
– The phase-to-phase voltage does not have to be reduced.
Current derating as a function of the installation altitude
The permissible converter output current is reduced above an installation altitude of 1000m.
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Figure11-2 Current derating as a function of the installation altitude
Temperature reduction as a function of the installation altitude
The permissible converter ambient temperature is reduced above an installation altitude of
1000m.
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Figure11-3 Temperature reduction as a function of the installation altitude
Technical data
11.8Restrictions for special ambient conditions
SINAMICS G120C Converters
Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK 433