If I order 20 SP30's for my 40U cabinet what size circuit will I need to power these machines, the sales guy at my data center is telling me I will need a 208V 30Amp 3 phase circuit.
Is this correct or is this guy out of his mind?
Thanks
He's out of his mind. 208V 30A 3 phase is at most 20830sqrt(3)80% = 8 kW, which is enough to run two SP30s (or maybe three if you're willing to risk a breaker nuisance tripping on occasion).
My DC is cheaper, by the way. Much, much cheaper -- as low as $210 per SP30 per month. We're also used to SP30s, since that's most of what we host. We've got enough capacity for 20 SP30s easily. You should host with us instead.
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