Dimensioning And Selection Information; Derating Data - Siemens SINAMICS G130 Engineering Manual

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Dimensioning and selection information

Derating data

Current derating as a function of installation altitude (Cabinet Modules based on chassis units)
If the Cabinet Modules based on chassis units are operated at installation altitude of >2000 m above see level, the
corresponding reduction factors for the maximum permissible output current must be considered (derating). These
factors are given in the following table. It has to be ensured that the air flow rate for the corresponding Cabinet
Modules given in the tables of technical data is guaranteed. The values already include a permitted correction
between installation altitude and ambient temperature (air temperature at air inlet of the Cabinet Module).
Installation altitude Current derating
above sea level at an ambient temperature (inlet air temperature) of
m 20 °C
0 ... 2000
... 2500
... 3000
... 3500
... 4000
Current derating as a function of ambient temperature (temperature of inlet air) and installation altitude
for Cabinet Modules based on chassis units with degree of protection IP20, IP21, IP23 and IP43
Installation altitude Current derating
above sea level at an ambient temperature (inlet air temperature) of
m 20 °C
0 ... 2000
... 2500
... 3000
... 3500
... 4000 97.8 %
Current derating as a function of ambient temperature (temperature of inlet air) and installation altitude,
for Cabinet Modules based on chassis units with degree of protection IP54
Voltage derating as a function of installation altitude
In addition to current derating, voltage derating as stipulated in the table below is applicable at installation altitudes of
> 2000 m above sea level.
Installation altitude Voltage derating
Above sea level at a rated line supply voltage of
m 380 V
0 ... 2000
... 2250
... 2500
... 2750
... 3000
... 3250
... 3500
... 3750
... 4000 96 %
Voltage derating as a function of installation altitude
1
The units with supply voltages of 660 V to 690 V 3AC (Order number 6SL3720-1THxx-xAA0) cannot be used at installation
altitudes > 3500m.
25 °C 30 °C
100 %
96.7 %
97.8 % 92.7 %
25 °C 30 °C
100 %
96.2 %
96.7 % 92.3 %
92.7 % 88.4 %
1
400 V 420 V 440 V 460 V
100 % 98 %
98 % 94 %
95 % 91 %
97 % 93 % 89 %
98 % 93 % 89 % 85 %
95 % 91 % 87 % 83 %
92 % 87 % 83 % 80 %
SINAMICS S120 Cabinet Modules
Engineering Information
35 °C 40 °C
96.3 %
96.2 % 92.5 %
92.3 % 88.8 %
88.4 % 85.0 %
35 °C 40 °C
95.0 %
96.3 % 91.4 %
92.5 % 87.9 %
88.8 % 84.3 %
85.0 % 80.8 %
480 V 500 V 525 V
96 %
94 %
90 %
88 %
85 %
82 %
79 %
76 %
SINAMICS Engineering Manual - May 2008
45 °C 50 °C
95.0 % 87.0 %
91.4 % 83.7 %
87.9 % 80.5 %
84.3 % 77.3 %
80.8 % 74.0 %
45 °C 50 °C
87.5 % 80.0 %
84.2 % 77.0 %
81.0 % 74.1 %
77.7 % 71.1 %
74.7 % 68.0 %
575 V 600 V 660 V 690 V
96 %
98 % 94 %
94 % 90 %
91 % 88 %
98 % 89 % 85 %
98 % 94 % 85 % 82 %
95 % 91 % 83 % 79 %
91 % 87 % 80 % 76 %
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