WARNING: I AM NOT AN ELECTRICIAN
That said, I have used C13/C14 jumper cables labled for 125V on the same APC AP7941 208V PDUs. It's probably not a great idea, but I've done it.
Maybe consider the raw power you're drawing? 125V@10amps is 1250 Watts.
Is any of your gear likely to draw more than 1000 Watts?
Consult an electrician to be sure and consider the impact of one of your cheaper cables catching fire.
I note that you got the 16 AWG product. This is slightly better than the 18 AWG product.
Usually the recommendations look like this:
- 18 AWG - 10 amps@125V
- 16 AWG - 13 amps@125V
- 14 AWG - 15 amps@250V
CablesToGo sells 14 AWG cables spec'd for 250V.
http://search.cablestogo.com/?Ntt=250+Volt+power+extension+cord&N=0&vno=24
But unfortunately not in short lengths. (I really like the 2' options with vertical PDUs.)
Other tip: I used to take some gaffing tape and wrap a strip about 3U long and .5" wide around the end of the plug going in to the APC PDU. This helps secure the cable. They tend to pop out if you're not using the bracket and lots of zip ties. The gaffing tape can help hold it in place.
Generally you can swap over from 120V to 208V without a hiccup.
Each PSU should be converting from AC to DC independently.
(MAKE SURE YOUR PSUS are not somehow connected with AC failover to eachother)
Best of luck and be safe...
Best Answer
Thats up to the server vendor. If you don't even tell us, which servertype you use, nobody could you answer this.
It should work, as the supplies will output the prober voltage anyway. But maybe the server's monitoring chipset don't likes that.
EDIT As you really need the mixed-operation you should test it with an old/broken system first. If there is no trouble, you have a great chance the other systems will stay alive. Keep the mixed-operation as short as possible, but long enough to allow the supplies to make a failover.