UCS C200 Server Power Supply Question

[jameyw911]

We are making some changes in our data center and part of that involves rack power.  We had to replace our rack power distribution units and to meet the load, we moved to 208V, 3-phase power distribution.  Reading the literature, I see that the power supplies in the UCS C200 Servers can operate 115V to 230V AC. 

My questions are:  Is there anything I need to do on the power supplies to go from 120V AC power feed to 208V power feed?  Can I have one power supply operating at 120V and the other operating at 208V?  I'm trying to avoid shutting the server down.

[Walter Dey · Accepted solution]

According to the specs

http://www.cisco.com/c/dam/en/us/products/collateral/servers-unified-computing/ucs-c-series-rack-servers/c220m3-sff-specsheet.pdf

Table 41 UCS C220 M3 SFF 450 W Power Supply Specificationspescription

AC input voltage

90 to 264 VAC self-ranging,

100 to 120 VAC nominal

200 to 240 VAC nominal

[jameyw911]

That's what I thought but I somehow missed the "self-ranging" statement.

Thanks