If other people with 48P models report similar figures I would be surprised, fohdeesha's numbers are spot on with the spec/datasheet, and he has decent, precise equipment to measure it (not just Kill-a-watt crap, actual test equipment). I'm pretty sure he has measured the Delta PSUs at this point to some degree. If your unit is pulling 60w at idle that is twice the amount it should per spec. Make sure you are measuring this right at the power input of the switch and not through the UPS system and its metering. Those are absolute shit, save very few exceptions. The quality of the UPS and its wave output also matters quite a bit. The PSUs in these switches do PFC.
I'm trying to get a 48P shipped internationally, but even after showing a seller one of the eBay videos about enabling GSP in the listings, he was being lazy. Since I currently do not need it urgently, my tolerance for that sort of numbskullness is pretty low so I will let the listings go. There should be more of these coming in waves as they are now EOL'd. I paid 120-130 not long ago for a 24 port model. Some sellers are decent (got a 12 port PD model from a seller who was great through and through), but others are just trying to rub a few shekels off at the expense of naive buyers. At least with network gear things are more sane than with, say, used server parts. All those middlemen grabbing loot off gov auctions and reselling (or doing stuff like Emergent Tech does, slipping near-dead SSDs in lots of good ones) for huge premiums are meh. We don't have that sort of ridiculousness in Europe thanks to recycling/reuse laws.