Technical specifications 
  8.4 Technical specifications 
SIMATIC IPC547D 
Operating Instructions, 06/2011, A5E03473780-01 
101 
8.4.2  Power requirements of the components (maximum values) 
 
Component  Voltage   
  +5 V  +3.3 V  +12 V  -12 V  5 Vaux 
FSC D3076-S11 motherboard with  
processor and heat sink  
5 A  2 A  15.5 A  0.1 A  0.3 A 
Front fan      0.5 A     
Basic system
 1) 
  5 A  2 A  16 A  0.01 A  0.5 A 
Expansions 
Hard disk drive SATA
 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 lines of current (max. permissible) 
2
 
30 A  28 A  23 A  0.5 A  2 A 
Total power consumption, permissible  210 W         
Efficiency of the power supply 
1
 
  Redundant AC power supply: 
approx. 70% (230 VAC) / approx. 65% (120 VAC) 
  AC power supply: 
approx. 80% (230 VAC) / approx. 75% (120 VAC) 
 
1
  Depends on the selected device configuration 
2
  The max. permitted accumulated power of the +5 V and + 3.3 V is 190 W. 
The accumulated power of the +5 V and + 3.3 V voltages must not exceed 100 W with 
redundant AC power supplies. 
8.4.3  Basic power supply 
 
Voltage  Max. current  Voltage stability 
+12 V  10 A  ± 5 % 
+12 V  13 A  ± 5 % 
–12 V  0.3 A  ± 10 % 
+5 V  25 A 
1
  + 5 %, – 4 % 
+3.3 V  20 A 
1
  + 5 %, – 4 % 
+5 V aux  2.5 A  + 5 %, – 3 % 
 
1
  The total output of the +5 V and +3.3 V voltage must not exceed 190 W. 
The inrush current is:    
●  For 110 V AC: Maximum 25 A, 5 ms 
●  For 240 V AC: Maximum 30 A, 5 ms