Specifications

SINAMICS G150
Drive converter cabinet units
75 kW to 1500 kW
3/9
Siemens D 11 · 2008
3
Technical specifications (continued)
Derating data
Compensation of current derating as a function of installation al-
titude/ambient temperature
If the SINAMICS G150 drive converter cabinet units are oper-
ated at an installation altitude > 2000 m above sea level,
factors relating to a reduction of the maximum permissible out-
put current (derating) must be taken into account. These are
specified in the tables below. It must be ensured that the air flow
corresponds to the rate specified in the technical specifications
tables. The specified values already include a permitted correc-
tion between installation altitude and ambient temperature (in-
coming air temperature at the inlet to the drive converter cabinet
unit).
Current derating depending on ambient temperature (inlet-air temperature) and installation altitude
for cabinet units with degree of protection IP20, IP21, IP23 and IP43
Current derating depending on ambient temperature (inlet-air temperature) and installation altitude
for cabinet units with degree of protection IP54
Voltage derating as a function of installation altitude
In addition to current derating, voltage derating must be consid-
ered in accordance with the following table with installation
altitudes > 2000 m above sea level.
Voltage derating depending on installation altitude
Installation altitude
above sea level
Current derating
at an ambient temperature of
m 20 °C 25 °C 30 °C 35 °C 40 °C 45 °C 50 °C
0-2000 95.0 % 87.0 %
2001-2500
96.3 % 91.4 % 83.7 %
2501-3000
100 % 96.2 % 92.5 % 87.9 % 80.5 %
3001-3500 96.7 % 92.3 % 88.8 % 84.3 % 77.3 %
3501-4000
97.8 % 92.7 % 88.4 % 85.0 % 80.8 % 74.0 %
Installation altitude
above sea level
Current derating
at an ambient temperature of
m 20 °C 25 °C 30 °C 35 °C 40 °C 45 °C 50 °C
0-2000
95.0 % 87.5 % 80.0 %
2001-2500 100 % 96.3 % 91.4 % 84.2 % 77.0 %
2501-3000 96.2 % 92.5 % 87.9 % 81.0 % 74.1 %
3001-3500
96.7 % 92.3 % 88.8 % 84.3 % 77.7 % 71.1 %
3501-4000 97.8 % 92.7 % 88.4 % 85.0 % 80.8 % 74.7 % 68,0 %
Installation
altitude above
sea level
Voltage derating
for a rated input voltage of
m 380 V 400 V 420 V 440 V 460 V 480 V 500 V 525 V 550 V 575 V 600 V 660 V 690 V
0-2000 100 %
2001-2250 96 % 96 %
2251-2500
98 % 94 % 98 % 94 %
2501-2750 100 % 98 % 94 % 90 % 100 % 94 % 90 %
2751-3000 95 % 91 % 88 % 91 % 88 %
3001-3250
97 % 93 % 89 % 85 % 98 % 89 % 85 %
3251-3500 98 % 93 % 89 % 85 % 82 % 98 % 94 % 85 % 82 %
3501-3750 95 % 91 % 87 % 83 % 79 % 98 % 95 % 91 % – –
3751-4000 96 % 92 % 87 % 83 % 80 % 76 %
95 % 91 % 87 % – –
© Siemens AG 2008