Sun Microsystems, Inc.   Sun System Handbook - ISO 3.4 June 2011 Internal/Partner Edition
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Sun Type A239B
1030/2060 Watt Power Supply

300-2321 300-2321
Emerson
AC Input Power Supply
Specification 950-5578
UL 60950-1 2nd Edition
EN 60950-1 2nd Edition
Power One
AC Input Power Supply
Specification 950-5578
UL 60950-1 2nd Edition
EN 60950-1 2nd Edition

AC Input

100-127Vac 200-240Vac 50-60Hz 12A

DC Output

100-127Vac +12V 81.3A +3.3V 10A 1030W
200-240Vac +12V 165A +3.3V 10A 2060W

Efficiency

100V 10% Load >81%
>20% Load >85%
230V 10% Load >83%
20% Load >90%
50% Load >92%
100% Load >90%

Power Factor Correction

10% Load 20% Load 50% Load 100% Load
>0.80 >0.90 >0.95 >0.98

Notes

  1. Power Supply Efficiency affects the current draw in AC Watts from the
    branch circuit. As efficiency increases, the current draw in AC Watts
    decreases.
  2. To calculate maximum theoretical current draw in AC Watts, multiply the
    maximum power supply output in DC Watts by the reciprocal of the power
    supply efficiency.
  3. Theoretical values are typically higher than published values which are
    based on measured outputs under controlled test conditions.

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