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Any ides on the name of this electrical plug?

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Old 01-12-2011, 02:56 PM
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Any ides on the name of this electrical plug?

Any ides on the name of this electrical plug? and if it's possiblr to get a extension cord for this type of plug?

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Old 01-12-2011, 02:58 PM
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Check to see if it could be 220V. Sorry, don't know the name for that plug.
Old 01-12-2011, 03:25 PM
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That's a three prong dedicated plug. It is used to run higher voltage to an item like a welder or such and can also be used to signify a non GFCI'd leg of a run, like for a freezer or space heater.

Use a multimeter to check for output on that circuit before you plug a 110V item into it!
Old 01-12-2011, 04:08 PM
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that is a 20 amp 220Volt plug
Old 01-12-2011, 06:28 PM
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The recieptle is a NEMA 6-20 T Slot 20 amp 250 volt.

And the plug is a NEMA 6-15 it is a 15-amp 250 volt.

The plug is also commonly known as a Chinaman for obvious reasons.

Here is a NEMA Chart of some of the different configurations.

http://www.stayonline.com/reference-...ght-blade.aspx

http://images.search.yahoo.com/searc...&va=nema+chart

You should be able to get an extension cord at Home Depot or get some 10 gauge sjo and install your own ends just make sure to observe the color code on both ends.

What is it used for, an air compressor or other machinery?

Odd to be in the same box as with the 120 volt devices.

Jim
Old 01-12-2011, 06:46 PM
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I have seen those wired with both 220 and 110. Definitely check the voltage on it.
Old 01-12-2011, 07:14 PM
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Originally Posted by SIXSLUG
Use a multimeter to check for output on that circuit before you plug a 110V item into it!
Originally Posted by OldDodgeOwner
I have seen those wired with both 220 and 110. Definitely check the voltage on it.
You guys are way too honest, friendly and helpful! The correct answer would be, "Plug a small 110 volt item, preferably something with a motor, into the plug and turn it on. Make sure you have someone else with you to record it on video so you can watch it later for reference. Posts your results on You Tube so we can see how you make out."
Old 01-12-2011, 08:01 PM
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Originally Posted by OldDodgeOwner
I have seen those wired with both 220 and 110. Definitely check the voltage on it.
You could have mistaken it for a NEMA 5-20 which is a 125 volt device.

It can be confusing when you are looking at the plug or the recieptle because it will be a mirror image, luckily they are all made a bit different so the wrong plug cannot be inserted.

These have also been used on low voltage D.C. on off grid applications where no A.C. is anywhere present.

I have seen people cut and twist the blades of plugs trying to make them fit usually with costly and smoking results.

Jim
Old 01-12-2011, 08:13 PM
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Originally Posted by chaikwa
You guys are way too honest, friendly and helpful! The correct answer would be, "Plug a small 110 volt item, preferably something with a motor, into the plug and turn it on. Make sure you have someone else with you to record it on video so you can watch it later for reference. Posts your results on You Tube so we can see how you make out."

The old Smoke Test..

On construction sites sometimes the 120 volt tap has less than 90-volts when all of the other guys have their saws running. if you don't have your own buck/boost transformer to correct the voltage.

We have run skill saws off the 240-volt recieptle of the power pole with about 800' of extension cord in between for voltage drop, the saws do run a bit hotter.

Of course you have to make your own pigtails.


Jim
Old 01-12-2011, 08:25 PM
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Originally Posted by Jim Lane
You should be able to get an extension cord at Home Depot or get some 10 gauge sjo and install your own ends just make sure to observe the color code on both ends.
If you put plugs on sjo, there can be a "better" end to use
for the male or female plug. The arrangement of the color of each wire is
made to connect the wire to each terminal without having to cross the
wire at the male or female connector. I hope someone can word this
better. Jim?
Old 01-12-2011, 09:23 PM
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what does it power?
Old 01-12-2011, 10:39 PM
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Jim nailed it. The receptical is a 20 amp 250 volt. The plug is a 15 amp 250 volt. These are the common plug/receptical used on our 240 volt system. The 20 amp receptical will accept both a 20 amp plug and a 15 amp plug. A 125 volt plug and receptical will have the horizontal and vertical blades reversed to prevent you from accidently preforming a smoke test.
Old 01-12-2011, 10:40 PM
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Originally Posted by befitz
If you put plugs on sjo, there can be a "better" end to use
for the male or female plug. The arrangement of the color of each wire is
made to connect the wire to each terminal without having to cross the
wire at the male or female connector. I hope someone can word this
better. Jim?
If you are indeed wiring it for 240, black and white designation doesn't really matter. Just land the ground in the right spot. Even so it doesn't hurt to cross the wires (physically, not electrically!), much more difficult with 3 phase cord caps. And, SO cord (600V vs 300V for SJO) is much tougher insulation if you need a heavy duty cord.

PS did anyone else notice that nice custom plate in the mulberry cover?
Old 01-12-2011, 10:48 PM
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Originally Posted by Jim Lane
You could have mistaken it for a NEMA 5-20 which is a 125 volt device.

It can be confusing when you are looking at the plug or the recieptle because it will be a mirror image, luckily they are all made a bit different so the wrong plug cannot be inserted.

These have also been used on low voltage D.C. on off grid applications where no A.C. is anywhere present.

I have seen people cut and twist the blades of plugs trying to make them fit usually with costly and smoking results.

Jim
It was a 220 Outlet, but someone wired it as 110. Took us a little while to figure out why our 220 grinder wouldn't work...
Old 01-12-2011, 11:20 PM
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Originally Posted by OldDodgeOwner
It was a 220 Outlet, but someone wired it as 110. Took us a little while to figure out why our 220 grinder wouldn't work...

This is typical example of an unexperenced homeowner asking the Home Depot employee for advice on how to wire the recieptle.

Most of them but not all know just enough to get someone killed.

People are always asking me how to do something in every department, not just electrical.

This recieptle is usually used on light stationary appliances like air conditioners.

Anything portable I always use a Twistlock, for my welder I use a 30~amp dryer recieptle and mating plug cap.

Jim


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