Siemens SINAMICS S220

9.2 SITOP PSU400M
9.2.1 Description
Description
The SITOP PSU400M is a power supply for connection to DC link voltages. It provides an output
voltage of 24V to 28.8V DC. The output voltage can be adjusted using an integrated
potentiometer.
The SITOP PSU400M is used to maintain the 24 V supply for Line Modules. This makes it
possible to execute retraction movements in the event of a power failure.
Table 9-2 Technical data, SITOP PSU400M (6EP1536-3AA00)
Feature Unit Article No. 6EP1536-3AA00
Input data
Input voltage
when the power supply starts
Input current
Inrush current (at 25°C)

V
V
A
A

300...824
>400
0.85
approx. 8
Output data
Output voltage
Adjustment range
Output current

V
V
A

24
24…28.8
20
Startup delay s 10scan be selected
Overload response (for U
DC Link
= 300 ... 820 V
DC)
A 30A for 5s/min
DC link components
9.2SITOP PSU400M
Booksize power units
248 Equipment Manual, 09/2023, A5E53307519B AA