Table 20. Electrical
Electrical characteristics Properties
kVA (maximum)
1
0.32
Rated voltage and frequency 100 - 127 V ac or 200 - 240 V ac at 50 - 60 Hz
Thermal output (maximum)
1
1024 Btu/hr
Power requirements (maximum) 300 W
Power factor 0.94
Leakage current (maximum) 1.2 mA
Phase 1
1
All measurements made in conformance with ISO 7779 and declared in conformance with ISO 9296.
Table 21. Temperature requirements
Operating Nonoperating
10°C - 38°C (50°F - 100.4°F)
1
-40°C - 60°C (-40°F - 140°F)
1
The maximum 38°C (100.4°F) temperature must be derated 1°C (1.8 °F) per 137 m (450 ft) above 1295 m
(4250 ft).
Table 22. Environmental requirements
Environment Operating Nonoperating Maximum altitude
Noncondensing humidity 20% - 80% (allowable)
40% - 55%
(recommended)
8% - 80% (including
condensing)
2134 m (7000 ft) above
sea level
Wet bulb temperature 21°C (69.8°F) 27°C (80.6°F)
Table 23. Noise emissions
1
Properties Operating Idle
L
WAd
6.0 bels 6.0 bels
L
pAm
(1-meter bystander) 43 dB 43 dB
1
Single drawer in standard 19-inch rack with 24 hard disk drives, nominal environmental conditions, and no
front or rear doors on rack.
For a description of noise emission values, see Acoustics.
All measurements made in conformance with ISO 7779 and declared in conformance with ISO 9296.
Table 24. Service clearances for rack-mounted expansion unit
Front Back Sides
914 mm (36 in.) 914 mm (36 in.) 914 mm (36 in.)
Side and top clearances are optional during operation.
Safety compliance: This hardware is designed and certied to meet the following safety standards: UL
60950; CAN/CSA C22.2 No. 60950–00; EN 60950; IEC 60950 including all National Differences
Site and hardware planning
19