Siemens SINAMICS S120 Equipment Manual page 250

Line Modules
5.5 Active Line Modules Chassis-2
Low overload
Based on the base-load current for slight overload I
60 seconds with a duty cycle duration of 300 seconds.
Figure 5-52
Duty cycle with maximum current
The duty cycle with maximum current I
with a duty cycle duration of 300 seconds.
The duty cycle for I
Figure 5-53
248
Low overload
is valid for a pulse frequency of 4 kHz.
max_DC
Duty cycle with maximum current
, the duty cycle is 115% for
L_DC
is based on a duty cycle 150% for 5 seconds
max_DC
Manual, 07/2019, 6SL3097-4AE00-0BP9
Air-cooled chassis power units