How to step down voltage from 208V to 110V

Posted by Eric Dennis on Server Fault See other posts from Server Fault or by Eric Dennis
Published on 2010-07-02T19:23:13Z Indexed on 2012/09/27 15:40 UTC
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Datacenter

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power

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pdu

I have some racks that will be fed by 208V/20A circuits. These circuits will be conditioned and battery-backed by the facility in which these racks will live. 99% of the devices in the rack will be able to support 208V input, so I plan to use these PDUs.

However, there may be one or two odd devices that will need 110V input. I know that I can use a step-down transformer to provide 110V for these devices, but that seems like overkill for such a small number of devices, plus I don't want to pay extra for the UPS functionality since my power will already be battery-backed.

Any suggestions for something I can use for these one-off 110V devices?

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