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D/C amps to A/c amps

D/C amps to A/c amps
by james3838 on 09/23/05 at 11:25:23

I have a power supply that is rated at -48VDC at 75 amps or app 3000 watts that will be powered through a transformer that is fed with 208VAC 3 phase.  I am trying to determine what the A/C amp draw will be on the 3 legs of the 208VAC to use the appropriate sized breaker.  Can anyone share this formula with me?

Re: D/C amps to A/c amps
by Robert Fogt on 09/24/05 at 17:37:23

The power supply should list the input rating also.

But I found a Power Supply message board. You could post your question there:

It would be cool if you posted here what their reply is, so others will know. :)

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