Dell PowerVault MD3000i Getting Started page 15

Environmental (Battery Backup Unit [BBU])
NOTE:
For additional information about environmental measurements for specific
system configurations, see dell.com/environmental_datasheets
Maximum input power
Regulated output voltage from BBU
Minimum retention time (life
expectancy)
Working temperature range (dry bulb)
Working relative humidity range
Storage temperature range (dry bulb)
Transit temperature range (dry bulb)
Storage and transit humidity range
Storage and transit maximum
temperature gradient
Storage and transit maximum humidity
gradient
• +12 VDC +/–5% at 1 A
• +3.3 VDC +/–5% at 150 mA
• Operating temperature range: 5° to
35°C (41° to 95°F)
• +2.5 VDC +/–3% at 20 mA to 120 mA
• Operating temperature range: 5° to
45°C (41° to 113°F)
72 hours for 512-MB DDR-I DIMM,
2.5 V at 120 mA
• 5° to 35°C (41° to 95°F)
• Maximum dry bulb temperature
derated by 3.3°C (37.9°F) per 1000 m
(3281 ft) above 500 m (1640 ft)
5% to 90% noncondensing
• –10° to 45°C (14° to 113°F) for
3 months maximum
• Maximum dry bulb temperature
derated by 3.3°C (37.9°F, guaranteed)
per 1000 m (3281 ft) above 500 m
(1640 ft)
–20° to 60°C (–4° to 140°F) for 1 week
maximum
5% to 95% relative humidity
1°C (33.8°F) per minute to a maximum
of 20°C (68°F) per hour
30% relative humidity per hour
Getting Started With Your System
13