I'm looking for advice on which electrical service I should have run to a rack that I have in a data center.
The price is the same for either a 30 AMP 220V circuit or a 60 AMP 120V curcuit.
I realize that these two curcuits are delivering effectivly the same amount of usable power, however I'm curious if one is better than the other. I remember reading somewhere that 220V is more effecient than 120V. If this is true then I'm wondering if that would result in my ability to run more devices off of the 220V power vs. the 120V.
Thanks for any help!
EDIT - This will be running in the US. All servers and Cisco gear that we are running can support either 120V or up to 240V. They are auto switching power supplies. Therefore locking power cables will not be an issue and standard plugs into the servers will be used. This will also be redundent circuits so I will be balancing each one to around 40% load so that in the event one circuit goes down then the other can carry the full load at or around 80%.