Siemens Simatic S7-400 - Page 71

● Permissible range
Static: 19.2 to 72 VDC
Dynamic: 18.5 to 75.5 VDC
Nominal input current 2/1/0.8 A
Overvoltage resistance In accordance with DIN VDE 0160, curve B2
Output parameters
Output voltages
● Nominal values
5.1 / 24 VDC
Output currents
Nominal values 5 VDC: 4 A
24 VDC: 0.5 A
Electrical parameters
Protection class in accordance with IEC 60536 I, with protective conductor
Overvoltage category II
Pollution degree 2
Nominal voltage U
e
0 < U
e
≤ 50 V
150 V < U
e
≤ 300 V
Test voltage
700 VDC (secondary <-> PE)
2200 VDC (primary <-> secondary/PE)
Buffering of power failures >20 ms at a repeat rate of 1 s, complies with the
NAMUR recommendation NE 21
Power consumption (24 VDC) 48 W
Power loss 16 W
Backup current Max. 100 µA at power off
Backup battery (option) 1 x Lithium AA,
3.6 V/2.3 Ah
Protective separation to IEC 61131-2 Yes
Power supply modules
3.12 Power supply module PS 405 4A (6ES7405-0DA01-0AA0)
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08 71