Supermicro PWS-1K28P-SQ Leaflet
80 PLUS Verification and Testing Report
TYPICAL EFFICIENCY (50% Load):
AVERAGE EFFICIENCY :
80 PLUS COMPLIANT:
YES
Units
Volts
Amps
Hz
Watts
Amps
Hz
Watts
Note: All measurements were taken with input voltage at 230 V nominal and 60 Hz.
Input AC Current Waveform (ITHD = 2.44%, 50% Load)
I
RMS
PF
A
0.72
0.86
9.85
10%
Low
143
1.44
130
90.76%
1.28
0.95
6.13
20%
Light
278
1.45
259
93.28%
2.99
0.99
2.44
50%
Typical
681
2.04
647
95.08%
5.98
1.00
1.72
100%
Full
1373
8.83
1291
94.04%
95.08%
94.13%
94.13%
Super Micro Computer Inc.
2012
SO-426.1
Year
Ecos ID #
1U
Type
Manufacturer
N/A
Model Number
PWS-1K28P-SQ
Serial Number
Test Date
5/11/2012
Rated Specifications
Input Voltage
Input Current
Input Current
Input Frequency
12 - 8 / 8 - 6
I
THD
(%)
Input
Watts
Watts
Fraction
of Load
of Load
* Fan power is not included in the efficiency calculations
12.16/10.49
12.15/20.99
12.14/52.48
12.1/105.02
Rated Output Power
Value
100-140 / 180-240
Load
(%)
External
Fan (W)*
12V
DC Terminal Voltage (V)/ DC Load Current (A)
1,280
50-60
5Vsb
5.13/0.39
5.13/0.79
5.12/1.97
5.1/3.94
Efficiency %
Output
Watts
Input Watts
1000
1200
1400
1600
P
o
w
e
r
(W
a
tt
s
)
Input and Output Power
80%
90%
100%
E
ff
ic
ie
n
c
y
(
%
)
Efficiency of the Power Supply
-5
-4
-3
-2
-1
0
1
2
3
4
5
-400
-300
-200
-100
0
100
200
300
400
0
0.003
0.006
0.009
0.012
0.015
C
u
rr
e
n
t
(A
)
V
o
lt
a
g
e
(
V
)
Time (s)
Input Current and Voltage Waveforms
Voltage
Current
Output Watts
0
200
400
600
800
1000
20%
50%
100%
P
o
w
e
r
(W
a
tt
s
)
Loading (% of Rated Output Power)
30%
40%
50%
60%
70%
0%
25%
50%
75%
100%
125%
E
ff
ic
ie
n
c
y
(
%
)
Loading (% of Rated Output Power)
Efficiency %
These tests were conducted by a third party independent testing firm on
behalf of the 80 PLUS
behalf of the 80 PLUS
®
Program. 80 PLUS is a certification program to
promote highly-efficient power supplies (greater than 80% efficiency in the
active mode) in technology applications.
active mode) in technology applications.
http://www.80plus.org/