SPEC=R4B500G1V2-vA8.doc

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1. General Description

This specification describes the performance characteristics of a 500 watts hot swappable,

1+1 power system with +3.3V,+5V,+12V, -12V main DC outputs, and 5V standby output.

The system is configured to hold two identical 500W power supply modules,

SURE STAR model R4B-500G1V2.

2. Input Characteristic

2.1. AC Input Voltage and Frequency

Minimum

Nominal

Maximum

Measure

90

100~240

264

Vac

47

50~60

63

Hz

2.2. Input Current and Inrush Current

AC Input Voltage

MAX. Input Current

Per Power Supply Module

Inrush Current

Per Power Supply Module

115Vac

10A

25A

230Vac

5A

50A

2.3. Power Factor

90Vac

115Vac

230Vac

264Vac

＞0.99

＞0.98

＞0.95

＞0.92

3. Power Efficiency

The minimum efficiency of power supply is 80% with full load and 115Vac/60Hz input.