Our server rack has two 208V 30A dedicated circuits running to it, each to a PDU mounted in the rack. Most of the equipment has redundant power supplies so one goes to each PDU. I'm not sure who had this installed but it seems like overkill for our relatively modest amount of equipment -- this is not a high-density data center.
Our building gets frequent power flickers and we'd like to get a UPS in there to keep things running smoothly. The rack currently houses our SAN, so losing power unexpectedly is not ideal.
The problem is that I'm having trouble finding a UPS for 208V/30A service. If we want to keep our dual power supply setup we're looking at dual 4kW UPS's at a total of $10k or so, which just seems silly when our power draw is closer to 1kW total.
Is this 208V/30A setup standard and I'm just not looking in the right place for power equipment? Should we have an electrician change the L6-30 connectors for L6-20 connectors and put in a 20A breaker instead? Our other server rack runs just fine off a single 120V/20A circuit.