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Quote: Originally posted by morticiaskeeper on 01/4/2007
To make it even easier than W VA
Assume V is 250
4 amps for every 1000 watts or 1 Kw
So 1250w / 1.25Kw will draw 5 amp.
This is a bit over what will actually be drawn, mainly because the voltage will be a bit lower than 250, but it makes it an easy calculation and gives a bit of cautious leeway.
A little pedantic, I know, but using 250V will give you an underestimate of the amperage drawn.
Its a good rule of thumb though as you'd probably be better off staying an amp or two below the site supply
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Topic: converting watts to amps
