Siemens S7-400PLC Spécifications Page 70

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Power supply modules
3.7 Power supply module PS 407 4A (6ES7407-0DA02-0AA0)
S7-400 Automation System Module Data
70 Reference Manual, Edition 09/2009, A5E00850736-06
Electrical parameters
Protection class in accordance with
IEC 61140
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)
2300 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 240 VDC 52 W
Power loss 20 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
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