Continuous Current-Carrying Capacity As A Function Of The Ambient Temperature; Power Losses; Power Losses In Rated Operation - Siemens SINAMICS S220 Equipment Manual

Application planning
4.13 Power losses
4.12.4 Continuous current-carrying capacity as a function of the ambient
temperature
Technical data
As a function of the ambient temperature, you can calculate the continuous current-carrying
capacity for power and signal cables based on the correction factors from the subsequent table.
Table 4-12
Ambient air temperature [°C]
30
35
40
45
50
55
60
4.13

Power losses

4.13.1

Power losses in rated operation

Technical data
The tables below provide an overview of the power loss of all components in rated operation.
The total losses of the relevant power unit (Line Module, Motor Module) are calculated from the
power loss and the corresponding electronics loss of the power unit.
The specified values are valid for the following conditions:
• Line voltage for Line Modules 400 V
• Pulse frequency of the Motor Modules 4 kHz
• Operating components at their rated power (Line Modules) or rated current (Motor Modules)
Table 4-13
Smart Line Modules
16 kW
24 kW
60
Correction factors for the continuous current-carrying capacity according to the ambient
temperature
Power losses for Smart Line Modules during rated operation (including losses of the
electronics)
Unit
W
W
Correction factor according to IEC 60204-1
1.15
1.08
1.00
0.91
0.82
0.71
0.58
Power loss
150
250
Equipment Manual, 09/2023, A5E53307519B AA
Booksize power units