How do you figure out how large a UPS a system needs?
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How do you figure out how large a UPS a system needs?
Depends on how much stuff will be running off it.Quote:
Originally Posted by sethfp
True, but it don't tell you so much .. - it goes like this..Quote:
Originally Posted by Spork
You also need to consider how much protected run time you need in the event of any failure, generally the more over the power rating you are the more time that should guarantee.Quote:
On the back of the equipment there should be a listing in either watts or amps. You need to calculate the voltage-amps (VA) power rating. If watts is given, VA=watts x 1.7. If amps is given, VA=amps x 120. Add up the total VA values. You will need an UPS with at least the total VA value.
Try here (where I nicked that quote from above -{there's even a wizard to work it out!} brief but it'll give you the idea)