Table 26. Dimensions for storage enclosures
Width Depth Height
Weight (maximum
configuration)
448.6 mm (17.7 in.) 744.22 mm (29.3 in.) 87.4 mm (3.4 in.)
37.1 kg (81.8 lb) (ESLL)
31.1 kg (68.6 lb) (5147-024
or ESLS)
Table 27. Electrical characteristics
Electrical characteristics Properties
AC rated voltage and frequency 100 - 127 V ac or 200 - 240 V ac at 50 or 60 Hz plus or
minus 3 Hz
Thermal output (maximum) 939 BTU/hr
Maximum power consumption 275 W
Maximum kVA 0.28
Phase Single
Table 28. Environment requirements
Environment Recommended operating Allowable operating Nonoperating
ASHRAE class A3
Airflow direction Front-to-back
Temperature
1
18°C - 27°C (64°F - 80°F) 5°C - 40°C (41°F - 104°F) 1°C - 60°C (34°F - 140°F)
Humidity range 5.5°C (42°F) dew point (DP)
to 60% relative humidity
(RH) and 15°C (59°F) dew
point
-12.0°C (10.4°F) DP and 8%
- 80% RH
5% - 80% RH
Maximum dew point 24°C (75°F) 27°C (80°F)
Maximum operating
altitude
3050 m (10000 ft)
Shipping temperature -40°C to 60°C (-40°F to
140°F)
Shipping relative humidity 5% - 100%
1. Derate maximum allowable dry-bulb temperature 1°C per 175 m above 950 m.
Table 29. 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 certified to meet the following safety standards: UL
60950; CAN/CSA C22.2 No. 60950–00; EN 60950; IEC 60950 including all National Differences.
Rack specifications
Rack specifications provide detailed information for your rack, including dimensions, electrical, power,
temperature, environment, and service clearances.
For non-IBM rack specifications, see Rack installation procedures for racks not purchased at IBM.
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