Doug Miller wrote:
In article , lid (aeneas1) wrote:

i purchased an electrical appliance that has electrical specs as
follows:

single phase
240 volt
11,500 watts
(47.9amps)


Wow. What is it?


it requires that the user install the power cord, i.e., it did not
come with a power cord. i will be purchasing #6 AWG for the supply
connection but am not sure which plug to buy - a NEMA 6-50 (250v 2
pole 3 wire) or a NEMA 10-50 (125v/250v 3 pole 3 wire). both are
rated for for 250 volts and 50 amps.


The 6-50 is a grounding receptacle, and the 10-50 is not. So I suspect the
6-50 is the better choice. What does the manufacturer recommend?

the big difference is price. the 6-50 plug costs (on average) about
$50 with the receptacle costing close to the same. the 10-50 plug can
be purchased for about $15 with the receptacle costing even less.


If you can't find 6-50 equipment for a lot less than that, you haven't been
looking very hard. You can buy a 6-foot cord with a 6-50 plug already molded
on it for less than nine bucks at Home Depot:
www.homedepot.com then search for item number 301471



That's not a 6-50P. NEMA 6-50 has parallel blades, similar to an
overgrown 15A 120V device. I think the one you referenced is a 10-50P cord.

If "Aeneas1" has a Mill's Fleet Farm nearby, look in both the electrical
supplies and by the welding supplies. I don't remember which, but one
of them has both NEMA 6 and 10 plugs and recepticals for less than $10.
(They are available in both areas of the store, but one is packaged
different and a lot cheaper -- so check both places.)

Electric kiln, welder, large electric cooktop, or 7.5 HP electric motor?

Best regards,
Bob