Supermicro 8U SuperBlade, User Manual

Page: 71 / 74

A-3
:
A-4 Power Supply Power Calculations
Table A-4. Power Supply: Power Calculations (PWS-2K21A-BR)
Calculation Value
Watts 2200
Volts (High/Low) 240/220
Amps (High/Low) 12/11
Efficiency (High) 96%
Power Factor (High) 98%
10% Reserve (High) 1.5
10% Reserve (Low) 1.3
Amps (Total) 11@240 volts
Table A-5. Power Supply: Power Calculations (PWS-1K20B-BR)
Calculation Value
Watts 1200
Volts (High/Low)
DC Output 12V: 12Vsb
DC Input: 11.2 to 12.9Vdc
Amps (High/Low)
+12V Output: 100A
12Vsb Output: 2A
Efficiency (High) 94%
Power Factor (High) 98%
10% Reserve (High) 1.5
10% Reserve (Low) 1.3