Power Supply Specifications; Table 28. Power Supply Specifications - Dell PowerEdge R820 Technical Manual

Relative humidity
Operating See Fresh Air for relative humidity information
Storage 5% to 95% at a maximum wet bulb temperature of 33°C (91°F); atmosphere must be non-
condensing at all times
Maximum vibration
Operating 0.26 Grms at 5Hz to 350Hz in all orientations
Storage 1.87 Grms at 10Hz to 500Hz for 15 minutes (all six sides tested)
Maximum shock
Operating Half sine shock in all operational orientations of 31G +/– 5% with a pulse duration of 2.6ms
+/– 10%
Storage Half sine shock on all six sides of 71G +/– 5% with a pulse duration of 2ms +/–10%; square
wave shock on all six sides of 27G with velocity change at 235 in/sec or greater
Altitude
Operating –15.2m to 3048m (–50 ft to 10,000 ft)
Storage –15.2m to 12,000m (–50 ft to 39,370 ft)
Airborne contaminant level
Class G1 or lower as defined by ISA-S71.04-1985

Power supply specifications

Table 28 lists power supply specifications for the PowerEdge R820.
Specification
Current consumption
Supply voltage
Frequency
Heat dissipation
(BTU/hr max)
Maximum inrush
2
current
1
Auto-ranging
2
Under typical line conditions and over the entire system ambient operating range, the inrush current may reach 55A per
power supply for 10ms or less.
49 PowerEdge R820 Technical Guide
Table 28. Power supply specifications
1100W DC
32A
-48V to -60V DC 100–240VAC
N/A
4416
55A
750W AC
1100W AC
Titanium
12–6.5A 10–5A
1
200–240VAC
50/60Hz 50/60Hz
4100 2843
55A 55A
750W AC
Platinum
10–5A
1
100–240VAC
50/60Hz
2891
55A