Technical specifications   
8.4 Technical specifications 
  SIMATIC IPC547D 
102  Operating Instructions, 06/2011, A5E03473780-01 
8.4.4  Redundant power supply 
 
Voltage  Max. current  Voltage stability 
+12 V  18 A 
2
  ± 5 % 
+12 V  18 A 
2
  ± 5 % 
+12 V  14 A 
2
  ± 5 % 
–12 V  0.8 A  ± 10 % 
+5 V  20 A 
1
  + 5 %, – 4 % 
+3.3 V  20 A 
1
  + 5 %, – 4 % 
+5 V aux  2.0 A  + 5 %, – 3 % 
 
1
  The total output of the +5 V and +3.3 V voltage must not exceed 100 W. 
2
  The total output of the +12 V voltage must not exceed 24 A. 
The inrush current is:    
●  For 110 V AC: Maximum 25 A, 5 ms 
●  For 230 V AC: Maximum 30 A, 5 ms 
8.4.5  Telescopic rails 
 
Ultimate load per pair   At least 30 kg   
Full extraction length  At least 470 mm   
Rail thickness  Maximum 9.7 mm   
Mounting screws  M5 x 6 mm   
The mounting screws of the telescopic rails may not protrude by more than 5 mm into the 
enclosure. 
8.4.6  Approved configuration versions for different temperature ranges 
Approved configuration versions   
The section below describes the approved versions of the drive configuration for SIMATIC 
IPC and the resultant operating conditions.    
A removable cartridge with hard disk can be installed instead of DVD drive(s). Devices 
equipped with removable HDD frames must not to be exposed to mechanical loads during 
operation, in accordance with DIN IEC 60068-2.