Technical data
14.2 Power requirements of components (maximum values)
SIMATIC Rack PC 847B
Operating Instructions, 06/2008, A5E02203168-01
119
14.2
Power requirements of components (maximum values)
Base system
Voltage
Component
+5 V
+3.3 V +12 V -5 V
-12 V
5 Vaux
Motherboard
4 A
1 A
0.8 A
0.03 A 0.3 A
Dual-Core processor with heatsink
0 A
0 A
2.3 A
Core 2 Duo processor with heatsink
0 A
0 A
2.6 A
Front fan
0.5 A
Rear fan
0.1 A
Base system (dual core)
4 A
1 A
4 A
0 A
0.03 A 0.3 A
Floppy disk drive
1
0.25 A
HDD
1
0.5 A
0.7 A
DVD ROM
1
0.9 A
0.8 A
DVD Burner
1
1.1 A
1.4 A
Single currents (max. permissible)
30 A
2
28 A
2
15 A
0.5 A
0.5 A
2 A
Total power consumption, permissible
210 W
Efficiency of the power supply
Approx. 70% (230 VAC) / approx. 65% (120 VAC)
1
based on the selected device configuration
2
The accumulated power of the + 5 V and + 3.3 V may not exceed 190 W.
