Technical specifications
14.3 Integrated DC power supply
SIMATIC IPC427C
96 Operating Instructions, 04/2009, A5E02414743-01
14.3 Integrated DC power supply
Technical specifications
Input voltage 24 VDC (19.2 to 28.8 VDC)
Power consumption 1) max. 72 W
Power failure buffering Hold-up time > 15 ms
(after > 5 ms DC_FAIL becomes active)
Maximum continuous output power 1) 60 W
Degree of protection IP 20
Protection class Safety class I (A protective conductor must be
connected to the device)
1) The performance specifications apply to the power supply components and the IPC427C device.
Note
Inrush current
A minimum of 4.5 A inrush current for 15 ms is required for starting the IPC427C.
The peak value of the startup current depends on the input voltage and the impedance of the
24V source: Peak values of more than 4.5 A are possible. This will not inhibit the operation
of the IPC427C.
Typical power consumption
Current consumption Power consumption
(at 24 V rated voltage)
Base device with Celeron or
Core 2 Solo processor
550 mA 13 W
Base device with Core 2 Duo
processor
750 mA 18 W
Fieldbus (Profibus or Profinet) 120 mA 3 W
2.5" hard disk 100 mA 2 W
Expansion USB 1) max. 500 mA max. 12 W
Expansion PCI-104 1) max. 460 mA max. 11 W
1) The total load for PCI-104 and USB expansion is max. 15W.
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