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Jim - If they are UPSs (Uninterruptible Power Supply), if you unplug=20
one/them the devices plugged into the UPS should just keep on working=20
and not be affected. (Otherwise, there is a much larger problem here.)
On the other hand, I am a jinx when it come to power failures and backup=20
power. I have been present at more clients than I can remember where=20
there was a loss of power and the backup failed. Each failure was=20
different, but all when analyzed fell into the category of failure to=20
adequately validate the system.
So, in principle you SHOULD be able to unplug the UPS and see what kind=20
of plug and outlet are there. But don't tell anyone you heard that from=20
me!! =F0=9F=99=82
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D
Al Fuller
714.335.0248 Mobile
------ Original Message ------
>From jamesf@groupwbench.org
To Shop-talk@autox.team.net
Date 4/9/2025 10:43:07 AM
Subject Re: [Shop-talk] Determine NEMA outlet type if it=E2=80=99s plugged=
in?
>Yes, twist lock. The devices in question are UPSs, and are 2880va, 120v=20
>units. And it may be confirmation bias, but 2880va/120v =3D 24a, which is=
=20
>80% of 30a, the standard derating. So I'm inclined to believe they are=20
>L5-30, especially since one unused one in the rail of 10 outlets is=20
>(local guy was able to unplug an unused unit). Does that make sense or=20
>am I thinking wishfully here (I have an order ready to go for mew ones=20
>with L5-30 plugs, just waitng for the outlet specs).
>
>jim
>
>On 2025-04-09 16:15, DAVID MASSEY wrote:
>
>>Are these the TwistLock variety? If so many of them look very similar=20
>>but have subtle differences making them incompatible with other=20
>>styles. This is to make a 120V/20 amp different from a 220V20 amp so=20
>>as to avoid the possibility of plugging a 120V device into a 220V=20
>>circuit. Or a 120V 30A device into a 20A circuit.
>>
>>You might be able to determine what styles you need from the nameplate=20
>>ratings on the powered device. In other words is it a 120V or a 220V=20
>>device? Of course if it dual voltage device it may be ambiguous.
>>
>>Dave
>>
>>
>>
>>On Wednesday, April 9, 2025 at 10:03:22 AM CDT, Jim Franklin=20
>><jamesf@groupwbench.org> wrote:
>>
>>
>>I'm dealing with a bunch of Schroedinger's outlets here. All the=20
>>outlets are in use so I can't unplug them to look at the NEMA marking,=20
>>but I need to replace the devices plugged in, which can be ordered=20
>>with various plug types. Is there a way to tell from the outside what=20
>>type I have? It's round, which narrows it down to a few...
>>
>>Thanks,
>>Jim
>>_______________________________________________
>>
>>Shop-talk@autox.team.net
>>Donate: http://www.team.net/donate.html
>>Suggested annual donation $12.96
>>Archive:=20
>>http://www.team.net/pipermail/shop-talkhttp://autox.team.net/archive
>>
>>Unsubscribe/Manage:=20
>>http://autox.team.net/mailman/options/shop-talk/dave1massey@cs.com
>>
>
>
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--></style></head><body><div>Jim - If they are UPSs (Uninterruptible Power=
Supply), if you unplug one/them the devices plugged into the UPS should jus=
t keep on working and not be affected. (Otherwise, there is a much larger p=
roblem here.)</div><div><br /></div><div>On the other hand, I am a jinx whe=
n it come to power failures and backup power. I have been present at more c=
lients than I can remember where there was a loss of power and the backup f=
ailed. Each failure was different, but all when analyzed fell into the cate=
gory of failure to adequately validate the system.</div><div><br /></div><d=
iv>So, in principle you SHOULD be able to unplug the UPS and see what kind=
of plug and outlet are there.=C2=A0 But don't tell anyone you heard that fr=
om me!!=C2=A0=F0=9F=99=82</div>
<div><br /></div><div id=3D"signature_old" style=3D"clear:both"><div dir=3D=
"ltr"><div><div dir=3D"ltr"><div><div dir=3D"ltr">=C2=A0<br />=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<br />=
Al Fuller<br />714.335.0248 Mobile<br /></div></div></div></div></div></div=
><div><br /></div>
<div x-em-replyforwardheader=3D""><br /></div>
<div>
<div>------ Original Message ------</div>
<div>From <a href=3D"mailto:jamesf@groupwbench.org";>jamesf@groupwbench.org<=
/a></div>
<div>To <a href=3D"mailto:Shop-talk@autox.team.net";>Shop-talk@autox.team.ne=
t</a></div>
<div>Date 4/9/2025 10:43:07 AM</div>
<div>Subject Re: [Shop-talk] Determine NEMA outlet type if it=E2=80=99s pl=
ugged in?</div></div><div x-em-quote=3D""><br /></div>
<div id=3D"xb2994a0f569e43d" style=3D"font-size: 10pt; font-family: Verdana=
,Geneva,sans-serif"><blockquote cite=3D"e7a353147ed9c8a8ef288ec280e1a375@gr=
oupwbench.org" type=3D"cite" class=3D"cite2">
<p id=3D"reply-intro">Yes, twist lock. The devices in question are UPSs, an=
d are 2880va, 120v units. And it may be confirmation bias, but 2880va/120v =
=3D 24a, which is 80% of 30a, the standard derating. So I'm inclined to be=
lieve they are L5-30, especially since one unused one in the rail of 10 out=
lets is (local guy was able to unplug an unused unit). Does that make sense =
or am I thinking wishfully here (I have an order ready to go for mew ones=
with L5-30 plugs, just waitng for the outlet specs).</p>
<p>jim</p>
<p>On 2025-04-09 16:15, DAVID MASSEY wrote:</p>
<blockquote type=3D"cite" style=3D"padding: 0 0.4em; border-left: #1010ff 2=
px solid; margin: 0" class=3D"cite">
<div id=3D"replybody1">
<div>
<div class=3D"v1ydp88081861yahoo-style-wrap" style=3D"font-family: Arial, H=
elvetica, sans-serif; font-size: 16px;">
<div>
<div dir=3D"ltr">Are these the TwistLock variety?=C2=A0 If so many of them=
look very similar but have subtle differences making them incompatible with =
other styles.=C2=A0 This is to make a 120V/20 amp different from a 220V20=
amp so as to avoid the possibility of plugging a 120V device into a 220V ci=
rcuit.=C2=A0 Or a 120V 30A device into a 20A circuit.</div>
<div dir=3D"ltr">=C2=A0</div>
<div dir=3D"ltr">You might be able to determine what styles you need from t=
he nameplate ratings on the powered device.=C2=A0 In other words is it a 12=
0V or a 220V device?=C2=A0 Of course if it dual voltage device it may be am=
biguous.</div>
<div>=C2=A0</div>
<div class=3D"v1ydp88081861signature">
<div style=3D"color: black; font-style: normal; font-size-adjust: none; fon=
t-weight: normal; font-stretch: normal; font-size: 12pt; line-height: norma=
l; font-family: Arial, Helvetica, sans-serif;">
<div style=3D"color: black; font-style: normal; font-size-adjust: none; fon=
t-weight: normal; font-stretch: normal; font-size: 12pt; line-height: norma=
l; font-family: Arial, Helvetica, sans-serif;">
<div><span style=3D"font-size: large;">Dave <br /></span></div>
<div><span style=3D"font-size: 10pt; font-family: sans-serif;">=C2=A0</span=
></div>
</div>
</div>
</div>
</div>
<div>=C2=A0</div>
<div>=C2=A0</div>
</div>
<div id=3D"v1ydpb4963a08yahoo_quoted_4683615947" class=3D"v1ydpb4963a08yaho=
o_quoted">
<div class=3D"v1ydpb4963a08yahoo-style-wrap" style=3D"font-family: Arial, H=
elvetica, sans-serif; font-size: 16px;">
<div style=3D"font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;=
font-size: 13px; color: #26282a;">
<div class=3D"v1ydpb4963a08quoted-text-header">On Wednesday, April 9, 2025=
at 10:03:22 AM CDT, Jim Franklin <jamesf@groupwbench.org> wrote:</div=
>
</div>
<div class=3D"v1ydpb4963a08inline_reply_quote_container" style=3D"font-fami=
ly: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 13px; color: =
#26282a; border-left: 1px solid #ccc; padding-left: 8px; margin: 0px 0px 0=
px 8px;">
<div>=C2=A0</div>
<div>=C2=A0</div>
<div>
<div dir=3D"ltr">I'm dealing with a bunch of Schroedinger's outlets here. A=
ll the outlets are in use so I can't unplug them to look at the NEMA markin=
g, but I need to replace the devices plugged in, which can be ordered with=
various plug types. Is there a way to tell from the outside what type I hav=
e? It's round, which narrows it down to a few...</div>
<div dir=3D"ltr">=C2=A0</div>
<div dir=3D"ltr">Thanks,</div>
<div dir=3D"ltr">Jim</div>
<div dir=3D"ltr">_______________________________________________</div>
<div dir=3D"ltr">=C2=A0</div>
<div dir=3D"ltr"><a href=3D"mailto:Shop-talk@autox.team.net"; rel=3D"norefer=
rer">Shop-talk@autox.team.net</a></div>
<div dir=3D"ltr">Donate: <a href=3D"http://www.team.net/donate.html"; rel=3D=
"noopener noreferrer">http://www.team.net/donate.html</a></div>
<div dir=3D"ltr">Suggested annual donation=C2=A0 $12.96</div>
<div dir=3D"ltr">Archive: <a href=3D"http://www.team.net/pipermail/shop-tal=
k" rel=3D"noopener noreferrer">http://www.team.net/pipermail/shop-talk</a>=
<a href=3D"http://autox.team.net/archive"; rel=3D"noopener noreferrer">http:=
//autox.team.net/archive</a></div>
<div dir=3D"ltr">=C2=A0</div>
<div dir=3D"ltr">Unsubscribe/Manage: <a href=3D"http://autox.team.net/mailm=
an/options/shop-talk/dave1massey@cs.com" rel=3D"noopener noreferrer">http:/=
/autox.team.net/mailman/options/shop-talk/dave1massey@cs.com</a></div>
<div dir=3D"ltr">=C2=A0</div>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
<p><br /></p>
</blockquote></div>
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_______________________________________________
Shop-talk@autox.team.net
Archive: http://www.team.net/pipermail/shop-talk http://autox.team.net/archive
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