Sun Microsystems, Inc.   Sun System Handbook - ISO 3.4 June 2011 Internal/Partner Edition
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Delta A249 / A249A
1100 / 1200 Watt Power Supply

300-2235 300-2304
Type A249
AC Input Power Supply
Specification 950-5845
UL 60950-1 2nd Edition
EN 60950-1 2nd Edition
 Type A249A
AC Input Power Supply
Specification 950-5845
UL 60950-1 2nd Edition
EN 60950-1 2nd Edition


AC Input

100-127Vac 47-63Hz 13A Max 1100W
200-264Vac 47-63Hz 7A Max 1200W

DC Output

+12V +3.3Vsb Low Line/High Line
90.8A/99.2A 4.0A/4.0A 1103W/1203W

Efficiency of 300-2235

115V 20% Load >80%
50%-100% Load >87%
230V 10% Load >81%
20% Load >90%
50% Load >92%
100% Load ≥90%

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.
  4. The 300-2138 was replaced by 300-2235 in T5220, T5240, and X4450
    in August 2010. (WO_43289)

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