L6-20P -> L6-30R
mstaudinger at corp.earthlink.com
Wed Mar 19 16:48:12 UTC 2014
I recently bought a UPS with a 30R plug on it, and sat and tried for about 20 minutes to plug it into what I thought was a 30 socket. It was, in fact, a 20. They're similar enough that if you're looking at the ends you might be convinced that someone has bent a one of the ends of the plug funny, but no amount of trying will make them fit.
From: Jay Ashworth [mailto:jra at baylink.com]
Sent: Tuesday, March 18, 2014 4:12 PM
Subject: Re: L6-20P -> L6-30R
----- Original Message -----
> From: "Randy" <amps at djlab.com>
> I have a situation where a 208v/20A PDU (L6-20P) is supposedly hooked
> to a 208v/30A circuit (L6-30R). Before I order the correct PDU's and
> whip cords...sanity check...are connectors 'similar' enough that this
> is possible (with force) or am I going to find we've actually got
> L6-20R's on the provider side?
As it happens, the chart at
suggests that the L6-20 and L6-30 are less different than you'd expect.
I *think* those are on different diameters, and a datacenter employee ought to friggin' know better... but I don't think it's 100% impossible that this has happened.
If it did, you're gonna replace the plug anyway...
As long as there's a 20A breaker on the PDU, you're safe, if not within code.
Jay R. Ashworth Baylink jra at baylink.com
Designer The Things I Think RFC 2100
Ashworth & Associates http://www.bcp38.info 2000 Land Rover DII
St Petersburg FL USA BCP38: Ask For It By Name! +1 727 647 1274
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