220V Single Phase Power Supply Welders & Plasma Cutters

220V single phase welding and plasma cutting machines plug into 3 or 4 prong outlets. These are the same kind of outlets used for washers and dryers, and carry twice the voltage of your typical 110V 2 prong outlet.
Shop 220V single phase electric welders from popular brands like MillerVictorBlue Demon, and Hobart.

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342 items found
OptX™ Laser Safety Glasses, Wraparound for sale online at welders supply
Miller OptX™ Laser Safety Glasses, Wraparound
$245.54
$309.76
OptX™ Laser Safety Glasses, Over Glasses Style for sale online at welders supply
Miller OptX™ Laser Safety Glasses, Over Glasses Style
$245.54
$309.76
OptX™ Welding Nozzle, Conical part of 5 Pack Welding Nozzle Kit for sale online at welders supply
Miller OptX Welding Nozzle Kit, 5 Pack
$251.68
OptX™ Cleaning Nozzle, Outside Corner part of 3 Pack Cleaning Nozzle Kit for sale online at welders supply
Miller OptX Cleaning Nozzle Kit, 3 Pack
$263.66
Maxstar® 161 S #907709001 120-240 V, X-Case, Stick Package Maxstar 161 S 120-240 V, X-Case, Stick Package
Maxstar 161 S 120-240 V, X-Case, Stick Package
$1,545.00
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60i machine Thermal Dynamics Cutmaster 60i #1-5631-1 w/ 50' Torch
Thermal Dynamics Cutmaster 60i #1-5631-1 w/ 50' Torch
$3,099.00
$3,649.00
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Buy Maxstar® 161 STH #907711 TIG/Stick Welder online at Welder Supply Ships with Free Helmet and Gloves Maxstar 161 STH #907711 120-240 V
Maxstar 161 STH #907711 120-240 V
$2,609.00
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Forney 220 AC/DC TIG Welder Package #420 Forney 220 AC/DC TIG Welder Package #420
Forney 220 AC/DC TIG Welder Package #420
$2,399.99
Lincoln Electric AC/DC 225/125 Stick Welder #K1297
AC/DC 225/125 Stick Welder #K1297
$1,049.00
$1,089.00
ESAB Rogue ET 200iP Pro 0700500073
$1,399.00
$1,999.00
Lincoln Electric AC225 Stick Welder #K1170
Lincoln AC225 Stick Welder #K1170
$729.00
$799.00
Cheap by now XMT® 350 FieldPro™, Tweco®, ArcReach® SuitCase® 12, Bernard™ BTB 300 A Gun Pkg 951734 XMT® 350 FieldPro™, Tweco®, ArcReach® SuitCase® 12, Bernard™ BTB 300 A Gun Pkg 951734
XMT® 350 FieldPro™, Tweco®, ArcReach® SuitCase® 12, Bernard™ BTB 300 A Gun Pkg 9…
$11,850.00
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Miller Syncrowave® 300
$6,777.00
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Lincoln Electric Precision TIG 275 TIG Welder #K2619-1
Precision TIG 275 TIG Welder #K2619-1
$6,786.00
PKG,XMT 350 FIELDPRO,AR SMART F
PKG,XMT 350 FIELDPRO,AR SMART F
$17,323.00
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Professional mobile welder Miller SubArc DC 650 Digital Portable Welding System quick shipping Miller SubArc DC 650 Digital Portable Welding System
Miller SubArc DC 650 Digital Portable Welding System
$87,882.00
Miller Syncrowave® 400 - Complete Package w/ Wired Foot Pedal 951831
Miller Syncrowave® 400 - Complete Package w/ Wired Foot Pedal
$15,564.00
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Miller Dynasty 280 DX (Auto-Line 208-575), CPS, VS #907514007
Miller Dynasty 280 DX (Auto-Line 208-575), CPS, VS #907514007
$10,751.00
$12,415.00
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Forney 220 Multi-Process (MP) Welder #410 Forney 220 Multi-Process (MP) Welder #410
Forney 220 Multi-Process (MP) Welder #410
$1,999.99
Lincoln Electric Precision TIG 275 TIG Welder Ready-Pak #K2618-1
Precision TIG 275 TIG Welder Ready-Pak #K2618-1
$11,204.00
PKG,ARCREACH SUITCASE 8,Q300
PKG,ARCREACH SUITCASE 8,Q300
$3,754.00
ESAB ET 220i AC/DC HF TIG with Trolley
ESAB ET 220i AC/DC HF TIG with Trolley W1009302
$8,503.95
$9,339.83
Lincoln Electric POWER MIG 360MP ALUMINUM FRONT TRIGGER ONE PAK FOR TRAILER MFG/GEN FABRICATION #K4784-1
Power MIG® 360MP One Pak For Trailer Mfg/gen
$12,028.00
Lincoln Electric POWER MIG 360MP Aluminum Rear Trigger One-Pak for Auto Repair #K4663-1
POWER MIG 360MP Aluminum Rear Trigger One-Pak for Auto Repair
$12,028.00
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220V Single Phase Power Supply

Before getting into 220v power, let’s address single-phase power. Single-phase (AKA “1-phase”) power is what you have running into your home. It is a two-wire AC circuit—one power wire (the phase wire) and one neutral wire. Electrical current flows between the power wire and neutral wire. Whereas, 3-phase power is a three-wire AC power circuit, with each phase 120-degrees apart.  The main benefit of 3-phase power is providing power at a constant rate, without the peaks and dips inherent in 1-phase power.

Most homes have standard AC outlets rated at 110v. In simple terms, a 220v outlet has 2 wires combined to produce twice the amount of voltage from a 110v outlet.  For large appliances (and 220v welding machines) in need of more power, a 220v outlet is necessary. Your washer and dryer, for instance, are plugged into 220v outlets. The plugs for these appliances are large, 3-or 4-pronged plugs in a dark-colored, circular housing, and the outlet they plug into is similarly round and dark-colored.

As you would expect, a 220v welder will have more power than a 110v welder. The extra 110v enables a 220v welder to weld thicker metals than a 110v welder. If you anticipate the need to weld metal thicker than 1/8” steel (the maximum weld capacity of most 110v welders), you will be better off with a 220v machine. It is important in you choose your power supply by power source.

Voltage rating confusion over the numbers used

It’s not uncommon to see 220-volt welders described as 230, 240 or 250 volts. Actually, they are all the same. The differing numbers are used to account for periodic variations in the power supply. When electricity runs through the wiring in a house, the voltage fluctuates. Sometimes it’s higher than 220v, sometimes it’s lower. In a similar manner, 110-volt appliances are sometimes described as 115, 120 or 125 volts.

What does a 220V outlet look like?

Single Phase Welding Machine 3 prong          220v welder- 4 prong outlet

- Larger than a 110v outlet, usually round, and black or dark brown instead of white.
- Can have three slots or four, one or more of which is usually positioned horizontally or on an angle. (Four-slot outlets have a ground wire.)
- Unlike 110 outlets, which are typically in pairs (“duplexes”), 220v outlets are single outlets.
- 3-prong outlets were the standard up until 1996
- 4-prong outlets have two “hot” wires and separate ground and neutral wires
Why aren’t all household outlets 220v?

Two reasons: cost and safety. Copper wire is expensive, and 110v outlets require less of it. In a 110v circuit, the wire is typically 12 gauge, while a 220v circuit requires 10 gauge or larger. Besides, most appliances in a house don’t need 220v—just large ones like the dryer and oven.

Safety is also a factor. An accidental shock from a 220v outlet is twice as painful as one from a 110v outlet (and can even be fatal). For these reasons, most homes are built with 220v outlets only where they’re really needed - in the laundry room and kitchen.

The ideal solution for home use: Get a 220v outlet installed in the garage

Having an electrician install a 220v outlet in your garage will allow you to safely use your welder in the garage or just outside of it. The cost for this varies, depending on the distance between the outlet and your electrical box, and whether your electrical supply is adequate for another 50Amp breaker (most 220v welders are 50amp). The copper wire runs about $6 per foot, so a long run from the outlet to the electrical box can add up fast. Also, the longer the distance, the longer it will take the electrician to run the wire and the more likely there will be obstacles to deal with. 

Do you need to upgrade your electrical service to add a 220v outlet?

If your home has 50Amp or 100Amp service, you’ll most likely have to upgrade it to 150 or 200 Amps. You’ll need an electrician for this, and it can run anywhere from $800 to $3,000, depending on electricians’ rates in your area. However, if you need to upgrade the electrical wiring (a likely scenario in any house over 40 years old), the job involves opening up walls to access the wiring and then repairing the walls. For an average-sized house, this can cost up to $8,000. For a large home with difficult to reach areas, the cost can balloon to $20,000 or more.

It’s worth rethinking the need for a 220v welder then and start taking a look at 110v welders or buying a generator to power the 220v welder. If the expense and hassle of adding a 220v outlet is too great, a generator (or a combination generator/welder) is a good alternative.

Welders Supply carries a great selection of both diesel and gasoline engine-driven welding machines. Also, shop Welders Supply Company's full selection of welding machines and accessories.
Tillman Elk Skin Welding Gloves #850
Tillman Elkskin Welding Gloves
$31.55
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Gateway StarLite Safety Glasses #469M On sale safest durable beginner safe welding goggles for professionals
Gateway StarLite Safety Glasses - Blue Mirror Lens
$1.75
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Jackson Safety VIBE Earmuff #20774
Jackson Safety, VIBE Earmuff
$20.65
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Tillman Green Sleeves #6217
Tillman Green Sleeves
$8.58
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Tillman Firestop Jacket #6230
Tillman Firestop Jacket
$19.05
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Hypertherm Powermax 45 Shield Deflector Part#220674
Hypertherm Powermax 45 Shield Deflector
$21.10
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Tillman Backhand Pads Part#550
Tillman Backhand Pad
$13.55
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Miller Fastip Contact Tips #2061(86,87,88,89,90)
Miller Fastip Contact Tips 2061(86,87,88,89,90)
$49.30
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Miller Millermatic 211 #907614 - 6 Free items with purchase Millermatic 211 Auto-Set Mig Welder
Millermatic 211 Auto-Set Mig Welder
$1,935.00
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Tillman Cowhide & Polar Fleece Winter Work Gloves Part#1584
Tillman Cowhide & Polar Fleece Winter Work Gloves
$9.65
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