Technical specifications
8.5 Technical specifications
SIMATIC IPC427D
Operating Instructions, 05/2017, A5E31347215-AB
121
8.5.4
Integrated DC power supply
Technical specifications
Input voltage
24 V DC (-20%/+20%)
Power consumption
1
Max. 90 W
Power failure buffering
hold-up time = 20 ms at 20.4 V
(DC_FAIL is active after > 5 ms)
Maximum continuous output power
1
80 W
Degree of protection
IP 20
Protection class
Protection class I (a protective conductor must be
connected to the device)
1
The power specifications apply to the power supply component not to the device.
Note
Inrush current
The device requires an inrush current of at least 6.5 A for 50 ms.
The peak value of the startup current depends on the input voltage and the impedance of the
24 V power source. Peak currents greater than 6.5 A are possible. This will not have a
negative impact on device functionality.
8.5.5
Typical power consumption
Technical specifications
Typical current and power consumption of the device at a rated voltage of 24 V
Current consumption
Power consumption
Device with Celeron processor
750 mA
18 W
Device with core i3 or core i7 pro-
cessor
950 mA
23 W
Fieldbus (PROFIBUS or
PROFINET)
120 mA
3 W
2.5" hard disk drive
100 mA
2 W
USB expansion
1
Max. 500 mA
Max. 12 W
PCIe expansion
1
Max. 500 mA
Max. 12 W
1
The total power for PCIe and USB expansions may not exceed 15 W
