OCPRF100 MP Server System Technical Product Specification

Revision 1.0

5.5Electrical Requirements

5.5.1Efficiency

The power supply has a minimum efficiency of 65% to its DC output pins at maximum load currents and at rated nominal input voltages and frequencies. The power supply has a minimum efficiency of 70% to its DC output pins at maximum load currents when the input voltage is higher than 180 Vac.

5.5.2AC Input Voltage Specification

5.5.3AC Input Voltage Ranges

The nominal input voltage ranges specified in AC volts root-mean-square (rms)# are 100-120 and 200-240 Vac. The power supply incorporates a universal power input with active power factor correction, which reduces line harmonics in accordance with EN61000-3-2 and JEIDA MITI standards. The ratings are marked on the supply labels as referenced in Table 5-2: Input Voltage Requirements and Section Internal System Marking.

Table 5-2: Input Voltage Requirements

Parameter

Min

Nom

Max

Units

 

 

 

 

 

Vin (115)

90

100-120

132

Vrms

 

 

 

 

 

Vin (230)

180

200-240

264

Vrms

 

 

 

 

 

Vin Frequency

47

50/60

63

Hz

 

 

 

 

 

Input Current 220 Vac range

 

†

 

Amps

 

 

 

 

 

†Proper values to be determined by the power supply manufacturer. Correct values are to be printed on the internal system label shown in Figure 5-3: Internal Label.

5.5.3.1AC Line Dropout

AC line dropout condition is a transient condition defined when the line voltage input to the power supply drops to 0 volts. AC line dropout will not damage the power supply under any load condi- tions. While operating at full load, an AC line dropout condition with a period equivalent to a complete cycle of AC input power frequency (i.e., 20 milliseconds at 50 Hz) or less, will not cause any out-of-regulation conditions, such as overshoot or undershoot, nor will it cause any nuisance trips of any of the power supply protection circuits.

5.5.3.2AC Line Fuse

Both the LINE and NEUTRAL AC inputs are fused. AC line fusing is compliant with all safety agency requirements. AC inrush current will not cause the AC line fuses to blow under any condi-

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