I have three Delta PFB0824UHE, which were provided to me by a customer for a project. They are labeled 0.93A.



When actually hooked up to 24V, the fan draws .45A, regardless of head pressure. This current varies linearly with input voltage, going as low as .2A and as high as .5A across the fan's spec'd input voltage range. I have three units, which all behave the same. 

The datasheets I find for this part indicate a current draw of 0.77A.

I’m confused as to how much current I should actually expect this fan to draw. Do fan manufacturers typically allow that much overhead in their specs? Are they subject to manufacturing variations to that degree? Do I perhaps have some special variant of the fan, and not know it? Are they perhaps mislabeled? Should I expect the fan's current draw to increase over time, or with temperature or some other variable? 


Question: Earth-Moon orbiting each other after being engulfed by Red Giant
Answer: The problem with answering your question is that red giant stars don't have a well defined edge. It's a bit like Earth's atmosphere. The density gets gradually lower as you move away from the centre but it's hard to draw a line and say "this the edge". So when you say the Sun engulfs the Earth, it depends on how deep into the Sun the Earth gets and how long it stays there.

I'd guess you're talking about the planet orbiting V391 Pegasi, and this does seem to have originally orbited at about the Earth's orbit. However it's much much heavier than the Earth so there would have been more of it to evaporate and it would survive longer than the Earth. We don't know exactly what the planet's original orbit was, or how big V391 Pegasi got during it's red dwarf phase, and we don't know how much of the planet was evaporated.

I think the best that we can say is it neither proves the Earth-Moon system will be destroyed nor proves that it will definitely survive. It does suggest that the possibility exists.