Silverstone SST-ST30NF-V4.1 用户手册

SilverStone ST30NF for Standard 

Switching Power Supply 

With Active PFC 

PS/2 Fanless 300W 

 

This specification describes the electrical characteristics, functional and physical of a PS/2 
Fanless Switching power supply; the maximum output will be 300W when Input Voltage is 
from 180V to 240V; the maximum output shall be 250W when Input Voltage is from 100V 
to 240V. This power supply is also design with Active PFC (Power Factor Correction) 
capabilities. 
 

 
2.1 AC Input Voltage, Frequency and Current (Rating: 100V-240Vac, 47-63Hz, 6-3A) 
The power supply must operate within all specified limits over the input voltage range in 
Table 1.    Harmonics distortion of up to 10% THD must not cause the power supply to go 
out of specified limits. 
 

Voltage (115V) 

90 Vac 

100-127 Vac 

132 Vac 

6A 

Voltage (230V) 

180 Vac 

200-240 Vac 

264 Vac 

3A 

Frequency 

47 Hz 

50 / 60 Hz 

63Hz 

 

AC input current of the system shall meet the limits shown in Table 1. No damage shall occur 
or overstress 

input fuse shall blow (as a result of inrush). Under conditions; 132/264VAC 

full load turn off

 

1sec; turn on at peak of input voltage cycle 25

°

C air ambient cold start.

 

 
2.3 Input Power Factor Correction (Active PFC) 
The power factor at full load shall be  ≧

 0.96 at nominal input voltage. 

 
2.4 Input Current Harmonics 
When the power supply is operated in 90-264Vac of Sec. 2.1, the input harmonic current 
drawn on the power line shall not exceed the limits set by EN61000-3-2 class “D” standards. 
The power supply shall incorporate universal power input with active power factor 
correction.