UPS energy consumption

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modoufuloo

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Jun 16, 2015
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how many watts does the APC 650 UPS uses while functioning. Is it correct if i just multiply the nominal voltage and input amps.
I want to know my expected energy bill before buying this UPS.
Thanks in advance.
 
Solution
C12Friedman
The wattage a system uses is not dependent on the UPS but on the systems' specs. Like your PSU, the UPS will only draw the power needed by the system, not what the product is rated for. It is rather efficient, showing ~96% efficiency at 25% load and only gets better from there. Any noticeable increase in energy usage wouldn't be because of the UPS as it's needs are minimal.
There is one spec that I'm not finding and that is the wave form of the output. This may be important since many SMPS's that feature Active PFC require a sine-wave input and often UPS's use stepped approximation to a sine wave and in some cases they don't work properly together.
I could give you an approximation of power consumption and whether there would be a...
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C12Friedman

C12Friedman

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Jan 25, 2012
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The wattage a system uses is not dependent on the UPS but on the systems' specs. Like your PSU, the UPS will only draw the power needed by the system, not what the product is rated for. It is rather efficient, showing ~96% efficiency at 25% load and only gets better from there. Any noticeable increase in energy usage wouldn't be because of the UPS as it's needs are minimal.
There is one spec that I'm not finding and that is the wave form of the output. This may be important since many SMPS's that feature Active PFC require a sine-wave input and often UPS's use stepped approximation to a sine wave and in some cases they don't work properly together.
I could give you an approximation of power consumption and whether there would be a compatibility issue with the UPS and PSU if you provide your complete build specs.
 
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