On 2/29/2012 1:31 PM, Luke S. Crawford wrote:
On Wed, Feb 29, 2012 at 10:19:14AM -0800, Anton Cohen wrote:
On Wed, Feb 29, 2012 at 9:15 AM, Luke S. Crawford<[email protected]> wrote:
The three-phase 208v that coresite santa clara wants to charge me more
for? I believe that is three 120v hots, and therefore, rather more power
than what I'm probably incorrectly refering to as 'single phase' 208v,
and something I could not plug directly into my servers without buying
new PSUs.
The 208v circuits I've used are 3-phase and you can use them with normal
PSUs (like the stock ones in your Supermicro servers). The PDU takes
3-phase 208v input and outputs 208v that the servers can use (single
phase?). I think that's the case for all 3-phase PDUs with C13 outputs, at
least it is for ServerTech units I've used.
You would use a PDU like this:
http://www.servertech.com/products/switched-pdus/switched-pdu-cw-24vd-vy-3ph
Yeah, but that thing isn't going to have a L6-20 plug, like mine does.
I believe that guy is doing the 'two hots' thing I was describing, and it
probably has a 5 wire connector from the plug to the PDU.
My pdu has a 3 wire connector. It's a whole lot like this one:
http://www.servertech.com/products/switched-pdus/switched-cdu-cw-16h
(min is a bit older, though.) - but the point is it's got a 3 wire
(hot hot ground, I think) connection to the plug.
You can't go by the pictures. Servertech will put the right kind of plug
on any PDU as long as the amperage
matches. You can get either a 4pin or 5pin plug on any 30A 208V 3 phase
PDU. Check the specs. (we have a lot of servertech gear)
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