Millermatic 350P plug wiring

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Hey guys,We just got a new Millermatic 350P MIG welder and I need to put a plug on it. I am setting it up for single phase 230v with a 6-50 plug. My question is: the power cable that comes with the machine has 4 wires - a green, black, red and white. According to the instructions, the red wire should be taped off and not used on single phase 230v. This leads me to think the green wire goes to ground on the plug, the black wire goes to the small prong and the white wire goes to the large prong. Am I correct in my thinking or do I have something mixed up?Thanks for any help!
Reply:That is correct.Steve from SoCal now in HutchMiller Dynasty 300DX Coolmate3 Speedway TorchMiller XMT 450 MPa plus with D-74 MPa Plus Miller Bobcat 225 NTHypertherm Powermax 45And a whole bunch of machines
Reply:Might want to check the Jumpers inside one of the side panel on the machine. Could be set for higher voltage then 240 volts..Esab/Lorch ET-220iEsab 160i caddyThermal LM-200 Lincoln feedersThermal Pee-Wee 85sThermal 60i- 3phase /RPC powered (Beast)Thermal Drag-gun 35CINE 1500 Klutch 140i
Reply:This machine can draw up to 61 amps at 230v single phase according to Millers spec sheet.  Installing a 50 amp cord end and receptacle, would be undersized and incorrect.  To do it right, it needs to either be hardwired or installed with the proper size plug and recep capable of handling at least 61 amps.  It looks like they recommend a 70 amp breaker or time delay fuse for the circuit.
Reply:I already moved the jumpers.As for the breaker, yes I agree. The reason I am setting it up this way is because we are moving in a couple of months and this is the outlet style we have in the shop right now. When we move it will be wired into 3 phase.Thanks for the help guys! Greatly appreciate it!
Reply:I run mine on single phase 230vac with a NEMA 10-50 plug, never tripped the 50A breaker yet.Tiger Sales:  AHP Distributor    www.tigersalesco.comAHP200x; AHP 160ST; MM350P,  Spoolmatic 30A; Everlast PowerTig 185; Thermal Dynamics 60i plasma.  For Sale:  Cobra Mig 250 w/ Push-pull gun.  Lincoln Wirematic 250
Reply:Got the 350p wired up to the 230v and she runs beautifully! It is the smoothest MIG machine I have ever used! Thanks for the help guys!  Couldn't be happier