Datasheet

Power Sub-system Intel® Server System SR1550AL
Revision – 1.3
Intel order number D31982-006
16
2.6.3 Efficiency
The following table provides the recommended efficiency level for the power supply module.
Efficiency shall be tested over an AC input voltage range of 90VAC to 264VAC.
Table 9. Efficiency
Power Supply Version 20% of maximum 50% of maximum 100% of maximum
650W ~80-85% ~90% ~90%
2.6.4 AC Input Voltage Specification
The power supply must operate within all specified limits over the following input voltage range,
shown in the following table. Harmonic distortion of up to 10% of rated AC Input Voltage must
not cause the power supply to go out of specified limits. The power supply shall power off on or
after/below 75Vac ±5Vac range. The power supply shall start up on or before/above 85VAC
±4Vac. Application of an input voltage below 85VAC shall not cause damage to the power
supply, including a fuse blow.
Table 10. AC Input Rating
PARAMETER MIN RATED MAX
Start-up
Vac
Power Off
Vac
Max Input AC
Current
Max Rated Input AC
Current
Line Voltage
(110)
90V
rms
100-127
V
rms
140V
rms
85Vac
±4Vac
75Vac
±5Vac
8.5 A
rms
1,3
7.6 A
rms
4
Line Voltage
(220)
180V
rms
200-240
V
rms
264V
rms
- -
4.2 A
rms
2,3
3.8 A
rms
4
Frequency 47 Hz 50/60Hz 63 Hz
Notes:
1. Maximum input current at low input voltage range shall be measured at 90Vac, at max load.
2. Maximum input current at high input voltage range shall be measured at 180VAC, at max load.
3. This is not to be used for determining agency input current markings.
4. Maximum rated input current is measured at 100VAC and 200VAC.
2.6.5 AC Line Dropout / Holdup
An AC interrupt is defined as a momentary drop of AC input voltage to 0VAC at any phase of
the AC waveform. During an AC interrupt event, the system shall not reset or experience any
loss of data. If the AC interrupt event lasts longer than stated in the below table, the system may
shutdown.
Table 11. Supported AC Line Dropout Times
Input voltage Power supply configuration AC interrupt duration
120VAC Single power supply 15msec
120VAC Two power supplies 20msec
230VAC Single power supply 17msec
230VAC Two power supplies 20msec
Note: In order to prevent data loss due to power interruptions of any duration, it is
recommended that a Uninterruptable Power Source (UPS) be used anytime unstable line power
may exist.