nanog mailing list archives
Re: L6-20P -> L6-30R
From: Chuck Anderson <cra () WPI EDU>
Date: Wed, 19 Mar 2014 09:49:08 -0400
On Tue, Mar 18, 2014 at 07:09:49PM -0400, David Hubbard wrote:
I've had to do that before; provider gave me a 208v/30a circuit and I already had a power strip I wanted to re-use that had a corded L6-20P connector on it. I purchased a L6-30P plug / L6-20R receptacle adapter from http://www.stayonline.com/nema-locking-6-30-amp-adapters.aspx They're only $25 and they ship overnight if needed. They have one foot cabled versions of the same thing too if you have tight working space and there's not enough room for both connectors back to back; works as a strain relief too so maybe that option is better regardless.
This is not really a safe thing to do unless the "adapter" has a 20A circuit breaker as part of it, or if you change out the upstream circuit breaker from 30A to 20A (and hopefully clearly mark the outlet as such).
If you're trying to go the other direction, plugging an L6-30P into an L6-20R 20 amp circuit, that I'd recommend against because it never fails that someone says hey, 30 amp power strip, let me plug some more stuff into it not realizing it's on a 20 amp breakered circuit, then all your stuff goes down while you try to find the facility staff to reset the breaker.
Going this way is safe, but as you say, you can only draw 20A (actually, you can usually only draw a derated 80% of that, so 16A).
Current thread:
- Re: L6-20P -> L6-30R, (continued)
- Re: L6-20P -> L6-30R William Herrin (Mar 19)
- Re: L6-20P -> L6-30R Lamar Owen (Mar 19)
- Re: L6-20P -> L6-30R Lamar Owen (Mar 19)
- Re: L6-20P -> L6-30R George Herbert (Mar 18)
- Re: L6-20P -> L6-30R George Herbert (Mar 18)
- Re: L6-20P -> L6-30R Jay Hennigan (Mar 20)
- Re: L6-20P -> L6-30R Owen DeLong (Mar 20)
- Re: L6-20P -> L6-30R Michael Brown (Mar 18)
- Re: L6-20P -> L6-30R Andrei Ivanov (Mar 18)
- RE: L6-20P -> L6-30R David Hubbard (Mar 18)
- Re: L6-20P -> L6-30R Chuck Anderson (Mar 19)
- Re: L6-20P -> L6-30R Justin M. Streiner (Mar 18)
- Re: L6-20P -> L6-30R Jay Ashworth (Mar 18)
- Re: L6-20P -> L6-30R Randy (Mar 18)
- Re: L6-20P -> L6-30R Jeremy Bresley (Mar 18)
- RE: L6-20P -> L6-30R Staudinger, Malcolm (Mar 19)
- Re: L6-20P -> L6-30R Joel Maslak (Mar 19)
- Re: L6-20P -> L6-30R Jay Ashworth (Mar 19)
- Re: L6-20P -> L6-30R Seth Mattinen (Mar 19)
- Re: L6-20P -> L6-30R Jay Ashworth (Mar 19)
- Re: L6-20P -> L6-30R Rob Seastrom (Mar 19)