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Using low loads with UPSs...

APC UPS for Home and Office Forum

Schneider Electric support forum for our APC offers including Home Office UPS, Surge Protectors, UTS, software and services and associated products designed to share knowledge, installation, and configuration.

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Cadet
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Using low loads with UPSs...

I have a need to keep power to devices that are in stand-by mode in the event of a power outage. Those devices draw about 2.5 watts and 70mA according to their respective specs.

 

I had hoped to use APC units like the BE 550 and ES 725 because I already own them. I'm finding inconsistent information regarding minimum load. Some people report that back-ups won't work with such low loads and others claim they've used them successfully.

 

One way is to test, which I'm willing to do - but first I thought I'd ask here to see if I could get some opinions or actual facts.

 

Thank you

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TomC87
Cadet
Cadet

Re: Using low loads with UPSs...

Hi,

 

Some Back UPS have a feature called "Low Load Shutdown". This feature shuts down the UPS after 15 minutes if the load is below 15 - 20W. If the UPS you wish to buy has this feature, then it will not be able to provide a back up for a load of 2.5W.

 

Regards,

Tom

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