Dc Power Supply - Siemens SIMATIC IPC277D Operating Instructions Manual

9.4.5.3

DC power supply

Input voltage
Power consumption
Power failure buffering
Maximum continuous output power
The performance specifications apply to the power supply component, but not to the device.
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Note
Inrush current
The device needs an inrush current of at least 4.5 A for 25 ms.
The peak value of the inrush current depends on the input voltage and the impedance of the
24 V source; peak currents in excess of 4.5 A are possible. This will not have a negative
impact on device functionality.
SIMATIC IPC277D
Operating Instructions, 12/2016, A5E03409486-AE
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Technical specifications
9.4 Technical specifications
24 VDC (19.2 to 28.8 VDC)
Max. 72 W
Hold-up time > 15 ms
(DC_FAIL becomes active after > 5 ms)
60 W
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