Intel SC5400LX User Manual

Page of 104
Chassis Power Subsystem 
Intel® Server Chassis SC5400 5U Kit TPS
 
30  
Revision: 
1.0 
 
5.1.4 
670W AC Specifications 
The power supply incorporates universal power input with active power factor correction, which 
reduces line harmonics in accordance with the EN61000-3-2 and JEIDA MITI standards.  
5.1.4.1 
AC Inlet Connector 
The AC input connector is an IEC* 320 C14 power inlet. This inlet is rated for 15A / 250VAC. 
5.1.4.2 
AC Input Voltage Specification 
The power supply operates within all specified limits over the following input voltage range (see 
the following table). The power supply shall power off if the AC input is less than 75±5VAC 
ranges. The power supply operates properly starting at 80-85VAC input voltages.  
Table 20. AC Input Ratings 
Parameter 
Minum 
Rated 
VMAX 
IMAX 
Start up VAC 
Power Off VAC 
Voltage (110) 
90 V
rms
 100-127 
V
rms
 140 
V
rms
 12 
A
1, 3 
85VAC +/-4VAC 
75VAC +/-5VAC 
Voltage (220) 
180 V
rms
 200-240 
V
rms
 264 
V
rms
 7 
A
2, 3 
 
 
Frequency 
47 Hz 
50/60 
63 Hz 
 
 
 
 
Notes: 
Maximum input current at low input voltage range shall be measured at 90VAC, at maximum load. 
Maximum input current at high input voltage range shall be measured at 180VAC, at maximum load. 
This requirement is not to be used for determining agency input current markings. 
 
5.1.4.3 Efficiency 
The 670W power supply has an efficiency of 68% at maximum load and over the specified AC 
voltage. 
5.1.4.4 
AC Line Dropout / Holdup 
An AC line dropout occurs when the AC input drops to 0VAC at any phase of the AC line for any 
length of time. During an AC dropout of one cycle or less, the power supply meets dynamic 
voltage regulation requirements over the rated load. An AC line dropout of 1 cycle or less (20 
ms minimum) shall not cause any tripping of control signals or protection circuits. If the AC 
dropout lasts longer than one cycle, the power supply should recover and meet all turn-on 
requirements. The power supply meets the AC dropout requirement over rated AC voltages, 
frequencies, and output loading conditions. Any dropout of the AC line does not cause damage 
to the power supply.