I have to put in two 240v 30a outlets, and plugs.

Is there a difference between 10-30 and 6-30? My limited understanding is
that 10-30 has a neutral and 6-30 has a ground, and since my application has
a ground, 6-30 should be correct, but does it really matter since I am doing
it all from scratch? HD has the 10-30 cheaper, and they don't even have
6-30 plugs. (my dryer circuit has an "uninsulated neutral", which I would
have called a ground...)

Toller wrote:
I have to put in two 240v 30a outlets, and plugs.

Is there a difference between 10-30 and 6-30? My limited understanding is
that 10-30 has a neutral and 6-30 has a ground, and since my application has
a ground, 6-30 should be correct, but does it really matter since I am doing
it all from scratch? HD has the 10-30 cheaper, and they don't even have
6-30 plugs. (my dryer circuit has an "uninsulated neutral", which I would
have called a ground...)




If these are dedicated outlets, I think you can use whatever you want. Go
crazy and use a 30A twistlock. If they are branch circuit outlets that
anything might get plugged into (unusual 20A), use the right NEMA pattern
-- you can buy the right ones at a better hardware store, or an electrical
supply house, or maybe at Fleet farm near the welders.

Best regards,
Bob

"Toller" wrote in message
...
I have to put in two 240v 30a outlets, and plugs.

Is there a difference between 10-30 and 6-30? My limited understanding
is
that 10-30 has a neutral and 6-30 has a ground, and since my application
has
a ground, 6-30 should be correct, but does it really matter since I am
doing
it all from scratch? HD has the 10-30 cheaper, and they don't even have
6-30 plugs. (my dryer circuit has an "uninsulated neutral", which I would
have called a ground...)



If you have the equipment that will be plugged into the receptacles, then
just match the plug. If you will be making up your own I suggest a four
wire outlet (14-30R or the L14-30R twistlock) as that will provide you with
a neutral and a grounding conductor giving you versatility for the future.
Of course you will need four wires for this (2 hots, 1 neutral, and one
ground).

The 10-30 is an outdated receptacle for retrofits. All new receptacles
require a ground.

In article , "Toller" wrote:
I have to put in two 240v 30a outlets, and plugs.

Is there a difference between 10-30 and 6-30? My limited understanding is
that 10-30 has a neutral

and no ground

and 6-30 has a ground

and no neutral

, and since my application has
a ground, 6-30 should be correct, but does it really matter since I am doing
it all from scratch?

Not "should be correct" -- *is* correct.

But why are you even asking? Your posting history shows that you're going to
do what you damn please anyway, even though you know it's wrong.

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.