Siemens SIMATIC IPC477E PRO - Integrated DC power supply

Technical specifications
9.4 Technical specifications
SIMATIC IPC477E PRO
Operating Instructions, 08/2017, A5E39912462-AA
127
9.4.6
Integrated DC power supply
Input voltage
24 V DC (-20%/+20%)
Power consumption
Max. 80 W
Power failure buffering Hold-up time ≥20 ms with 20.4 V (DC_FAIL is active after > 5
ms)
Efficiency
>85 %
Note
Inrush current
At least 5 A inrush current for 15
ms is required for device startup.
The peak value of the starting current depends on the input voltage and the impedance
of
the 24
V DC power supply. Peak currents greater than 6.5 A are possible. This will not have
a negative impact on device functionality.