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Re: Why choose 120 volts?


From: Seth Mattinen <sethm () rollernet us>
Date: Wed, 27 May 2009 15:08:55 -0700

david raistrick wrote:
On Tue, 26 May 2009, Joe Greco wrote:

http://www.cdw.com/shop/products/default.aspx?edc=1036852

Great, you're the latest person to invent a way to present a 5-15R that
offers something besides 120VAC.  This is neither new nor novel, but it
*is* dangerous and risky, and in no way "solves the problem."

No, this does NOT present 208v at a 5-15R. Don't believe me, buy one and put a voltmeter across it.

I'll leave the FUD to others.


Here's the L-G voltage off the 208v taps from an isolation transformer in a system with no neutral: http://ninjamonkey.us/not_120_volts.jpg

In other words, in a system with no neutral, it's not designed to do 120v loads. The L-L voltage on that same PDU is 211. Also, the device you linked will present high voltage because again, no neutral.

~Seth


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