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#49584 03/10/05 12:52 PM
Joined: Aug 2002
Posts: 1,691
S
SvenNYC Offline OP
Member
Wow. I had ordered some electrical parts in the mail a few days ago and received them yesterday.

One of the parts I needed was an "RV plug" (the funky two slanted pin + 1 round pin 30-AMP/125 volt jobs). This is what they sent me instead, by mistake:

[Linked Image from electronicsurplus.com]

This thing is HUUUGE. Three-phase 20 amps at 120/208 volts!!

What would it have been used for, originally?

[This message has been edited by SvenNYC (edited 03-10-2005).]

Joined: Dec 2002
Posts: 228
J
Member
I just saw one of these for the first time last week, it was from an APC UPS that had cord and plug connections to each of the server racks. The strip in the rack was three phase with 1/3 of the outlets on their own phase.

Joined: Sep 2001
Posts: 806
N
Member
Looks like a NEMA L21-20.

Used in "pendant" applications in machine shops quite a bit, in addition to power cords on large computer racks.

Pretty much the standard connector for cord and plug connected 3 phase equipment that requires a neutral.

Joined: Mar 2005
Posts: 38
D
Member
A lot of shops use this connector in place of a motor disconnect for 3-phase fractional horsepower devices


Dolphins Software
Joined: Jul 2004
Posts: 9,646
G
Member
That's not huge. I have an IEC309 120/208 @100a laying around in my garage. THAT is huge.


Greg Fretwell
Joined: May 2004
Posts: 49
J
Member
we use a plug similar to that on the end of the shore cords at the boat manufacturer i work for. except our cords are single phase

Joined: Apr 2002
Posts: 7,275
Likes: 2
Member
Sven:
Long time, no type! Hey, don't shop via the mail, go to a local supply house!
(Just kidding)

Usually, 120/208 3 phase, 4 wire, with a GROUND! 3 'hots'; 1 neutral, 1 ground

As everyone else said, it ain't that big, and it's not that unusual. (It's NEMA)
200 amp, 3 phase, w/grd., 480 volt Russel Stohl....now that's big & $$$$$$$ (MRI trailer unit hook-up)
John


[This message has been edited by HotLine1 (edited 03-10-2005).]


John
Joined: Aug 2002
Posts: 1,691
S
SvenNYC Offline OP
Member
Hahaha, hey John. Yeah. Been busy with other drama in my life.

Anyway, they're sending the correct cap over. I get to keep the yellow beastie. [Linked Image]

Joined: Apr 2002
Posts: 7,275
Likes: 2
Member
Sven:
Now you have to find a use for it!!
Put it on e-bay??

John


John

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