OT: Electrical stuff for 3 phase

Silver indicates the neutral which is the white wire in a properly connected
circuit.
(W?)
It is clear that you don't follow this convention if you are using white for a
phase. Reidentify it with blue tape.
As long as you know what you are doing in your own shop and you will never take
your equipment anywhere else you could use the connectors you have if you don't
need the neutral. Just connect the ground to the silver screw on both ends.
If you need the neutral you should find 5 prong plug/receptacle combos.
A setup like you have (without a neutral) is/was very common in the computer
room environment. They didn't even bring a neutral into a real 3p computer room
panel. 120v loads were handled from the general lighting panels and all
computer hardware was 208/240v.
Now days computers just plug into the wall.

I did a little more looking.
Check out this site and see what you have.

http://www.quail.com/nema.cfm

The site had moved and I couldn't find it earlier

Absolutely, positively 208 volt 3-phase.
Black, red and *Blue*. (Sorry for dumbing it down Gfretwell.)

-Doug
==============
"ELAhrens" <[email protected]> wrote in message
news:[email protected]...
> Doug, I'm sorry but I have to ask this - are you sure you have 3phase. I
> have never seen 3Ph in any residential locations. Does the breaker occupy 3
> adjacent slots? I dont mean to be a smart butt - Just making sure we're all
> on the same page.
>
> ELAhrens
>
>
>
> "bole2cant" <[email protected]> wrote in message
> news:[email protected]...
> > I normally don't do off-topic posts but I have been to my electrical
> wholesaler
> > and didn't get much help and I know there are a couple of guys here who
> know
> > their NEMAs.
> >
> > I want to buy some receptacles for 3-phase wall outlets. What they sold me
> was
> > this:
> > 20A, 3PH Y 120/208VAC
> > 4P 4W Not Grdg. Non-NEMA
> >
> > The receptacle has a tag which says:
> > CAUTION:This device is not for grounding use.Connect only to non-grounding
> > circuits.
> >
> > I'm ready to return this stuff but I don't know what to ask for!
> >
> > I have a 30 amp (10 gauge wire-red/black/white w/ground) 3-phase 208 V.
> wall
> > outlet that needs a receptacle. Also a 20 amp wall outlet.
> >
> > Can someone tell me the technical terms/names for these devices? And their
> > matching plugs?
> >
> > As an aside what do X, Y, Z, W stand for? X, Y, and Z seem obvious but
> what
> > about W. (It's screw is silver, not green.) How about 4P and 4W?
> >
> > Thanks for technical assistance.
> > --
> > -Doug in Utah
> > **This IS for my woodshop**
> >
> >
> >
>
>

Doug, I'm sorry but I have to ask this - are you sure you have 3phase. I
have never seen 3Ph in any residential locations. Does the breaker occupy 3
adjacent slots? I dont mean to be a smart butt - Just making sure we're all
on the same page.

ELAhrens



"bole2cant" <[email protected]> wrote in message
news:[email protected]...
> I normally don't do off-topic posts but I have been to my electrical
wholesaler
> and didn't get much help and I know there are a couple of guys here who
know
> their NEMAs.
>
> I want to buy some receptacles for 3-phase wall outlets. What they sold me
was
> this:
> 20A, 3PH Y 120/208VAC
> 4P 4W Not Grdg. Non-NEMA
>
> The receptacle has a tag which says:
> CAUTION:This device is not for grounding use.Connect only to non-grounding
> circuits.
>
> I'm ready to return this stuff but I don't know what to ask for!
>
> I have a 30 amp (10 gauge wire-red/black/white w/ground) 3-phase 208 V.
wall
> outlet that needs a receptacle. Also a 20 amp wall outlet.
>
> Can someone tell me the technical terms/names for these devices? And their
> matching plugs?
>
> As an aside what do X, Y, Z, W stand for? X, Y, and Z seem obvious but
what
> about W. (It's screw is silver, not green.) How about 4P and 4W?
>
> Thanks for technical assistance.
> --
> -Doug in Utah
> **This IS for my woodshop**
>
>
>