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3.3.2
AC Input Voltage Specification
The power supply must operate within all specified limits over the following input voltage range. Harmonic
distortion of up to 10% of the rated line voltage must not cause the power supply to go out of specified
limits. Application of an input voltage below 85VAC shall not cause damage to the power supply, including a
blown fuse.
PARAMETER
Line Voltage (110)
Line Voltage (220)
Frequency
DC Voltage
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.
PARAMETER
Voltage (110)
Voltage (220)
Frequency
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 requirement is not to be used for determining agency input current markings.
3.3.3
AC Line Isolation Requirements
The power supply shall meet all safety agency requirements for dielectric strength. Transformers' isolation
between primary and secondary windings must comply with the 3000Vac (4242Vdc) dielectric strength
criteria. If the working voltage between primary and secondary dictates a higher dielectric strength test
voltage the highest test voltage should be used. In addition the insulation system must comply with
reinforced insulation per safety standard IEC 950. Separation between the primary and secondary circuits,
and primary to ground circuits, must comply with the IEC 950 spacing requirements.
3.3.4
AC Line Dropout / Holdup
An AC line dropout is defined to be when the AC input drops to 0VAC at any phase of the AC line for any
length of time. An AC line dropout for less than 12ms shall not cause tripping of control signals or protection
circuits. If the AC dropout lasts longer than the holdup time the power supply should recover and meet all
turn on requirements. The power supply shall meet the AC dropout requirement over rated AC voltages and
frequencies. A dropout of the AC line for any duration shall not cause damage to the power supply.
23
Intel® Server System R1000SPO Product Family TPS
Table 10. Input Voltage Range – 350W Power Supply
MIN
RATED
90V
100-127 V
rms
180V
200-240 V
rms
47 Hz
50/60Hz
237VDC
250VDC
Table 11. AC Input Voltage Range – 450W Power Supply
MIN
RATED
90 V
100-127 V
rms
180 V
200-240 V
rms
47 Hz
50/60 Hz
Table 12. AC Line Holdup Time – 350W Power supply
Loading
75%
MAX
Max Input AC Current
140V
6 A
rms
rms
264V
3 A
rms
rms
63 Hz
262VDC
Start-up VAC
VMAX
140 V
1
85VAC +/-4VAC
rms
rms
264 V
2
rms
rms
³
63 Hz
Holdup time
12msec
1
rms
2
rms
Power-off VAC
70VAC +/-5VAC
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