nanog mailing list archives
Re: L6-20P -> L6-30R
From: Jeremy Bresley <brez () brezworks com>
Date: Tue, 18 Mar 2014 21:34:24 -0500
On 3/18/2014 6:11 PM, Jay Ashworth wrote:
From experience with some electricians who couldn't follow simple written instructions, it is physically possible to put an L6-20 plug into an L6-30 receptacle. But it won't lock into place. Beyond all the other reasons it's not recommended, the slightest bump of the cable will likely knock it loose causing whatever is on there to drop. (Cue electricans knocking the production 6506E's offline 3 times in 20 minutes while they were replacing the breakers and the supposedly redundant power cords...)From: "Randy" <amps () 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 http://www.stayonline.com/reference-nema-locking.aspx 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.
If you can unplug it to look, every one I've ever seen has had the voltage and amperage clearly molded into the face of it.
Jeremy "TheBrez" Bresley brez () brezworks com
Current thread:
- Re: L6-20P -> L6-30R, (continued)
- 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)
- Re: L6-20P -> L6-30R Lamar Owen (Mar 20)
- Re: L6-20P -> L6-30R Rob Seastrom (Mar 20)
- Re: L6-20P -> L6-30R Gary Buhrmaster (Mar 20)
- Re: L6-20P -> L6-30R Lamar Owen (Mar 20)