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PWR-IE170W-PC-DC (also written PWR-IE170W-PC-DC=) is a Cisco industrial DIN-rail power supply a 170W low DC to DC unit. It has a hardwired input and is marked for PoE use, so it can feed industrial Ethernet switches that deliver PoE. Its companion is the PWR-IE170W-PC-AC, which takes AC or high DC input at the same 170 W rating.
The DC input is 12-54 V at up to 23 A, with an accepted range of 10.8-60 VDC, and efficiency is 88%. Inrush current is 17.3 A at 12 VDC. The output is 54 VDC at 3.2 A for 170 W. Holdup time runs from 9 ms at 10.8 VDC input to 25.9 ms at 60 VDC input.
The supply is approved for Class 1, Div 2/Zone 2 hazardous location installations. The enclosure is IP20, storage temperature runs from -40 to +85 degrees C with no derating, and humidity tolerance is below 95% relative humidity, non-condensing. Approvals include EN 60950-1 and UL 508, with EMC to EN 61000-4 immunity tests, CISPR 32, EN 55032, FCC 47 CFR part 15B, IEC 61850-3 and IEEE 1613.
The body measures 114 x 150 x 146 mm (4.48 x 5.90 x 5.74 in.), weighs 3.68 lb (1.67 kg) and has a calculated MTBF of 2,164,641 hours (Telcordia SR-332).
Related part: PWR-IE170W-PC-AC Cisco 170W AC to DC DIN-Rail Power Supply
| Designation | PWR-IE170W-PC-DC (spare form PWR-IE170W-PC-DC=) |
| Output power | 170 W |
| Input | DC 12-54 V, 23 A (range 10.8-60 VDC) |
| Efficiency | 88% |
| Output | 54 VDC, 3.2 A |
| Holdup time | 9 ms at 10.8 VDC to 25.9 ms at 60 VDC |
| Inrush current | 17.3 A at 12 VDC |
| Input connection | hardwired |
| Hazardous location | Class 1, Div 2/Zone 2 |
| Dimensions (W x H x D) | 114 x 150 x 146 mm |
| Weight | 3.68 lb (1.67 kg) |
| MTBF | 2,164,641 hours |