220V 3-Phase Power Supply Welders & Plasma Cutters

3-phase power is typically only supplied to industrial and manufacturing operations running large motors or do a lot of heavy-duty welding. 220V 3 phase power outlets will have at least 4 slots, including 3 for each phase of the power supply and one for grounding.
Shop 220V 3 phase electric welders from popular brands including MillerVictorBlue Demon, and Hobart.

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Miller AlumaPower 450 MPa XR AlumaFeed Suit Case XR AlumaPro AirCooled MIG Runner #951840 PKG,ALUMAFEED 450 MIGRUNNER W/2
PKG,ALUMAFEED 450 MIGRUNNER W/2
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Miller Invision 352 MPa Plus System #951500
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AlumaPower 350 MPa 208-575 Auto
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Lincoln Electric Aspect 230 AC/DC Air Cooled One-Pak #K4341-1
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Convenient Miller Dynasty 800 w/ RFCS-14HD remote foot control beginner welding package Miller Dynasty® 800 Foot Control Pkg
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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
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$12,415.00
Get fast FREE shipping in the lower 48 states on the Cutmaster 152 Plasma System Cutmaster 152, 120 Amp, SL100, 20 ft Leads, 460V, 3Ph
Cutmaster 152, 120 Amp, SL100, 20 ft Leads, 460V, 3Ph
$5,499.00
$6,899.00
Miller AlumaPower 350 MPaXRAlumaFeed Suit Case XR AlumaPro Stationary Package PKG,ALUMAFEED 350 WELD SYS W/25
PKG,ALUMAFEED 350 WELD SYS W/25
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PKG,DELTAWELD 350 MIGRUNNER W/I
PKG,DELTAWELD 350 MIGRUNNER W/I
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Best looking welding ESAB ET 301i AC/DC TIG fast shipped welder
ESAB ET 301i AC/DC W1009400
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CONTINUUM 350 230-575V W/RUNNIN
CONTINUUM 350 230-575V W/RUNNIN
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PKG,ARCREACH SUITCASE 8,Q300
PKG,ARCREACH SUITCASE 8,Q300
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ESAB Warrior 300i Power Source
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PKG, DELTAWELD 350 MIGRUNNER W/
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Lincoln Electric Tomahawk 1000 Plasma Cutter with 25 ft (7.6 m) Hand Torch #K2808-1 Tomahawk® 1000 Plasma Cutter w/ 25' Hand Torch
Tomahawk® 1000 Plasma Cutter w/ 25' Hand Torch
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Welder review Continuum™ 500 what should I get for a beginner Continuum™ 500
Continuum™ 500
$14,086.00
Purchase the Millermatic 355 welder from welders supply
Millermatic 355 MIG/Pulsed MIG Welder
$11,129.00
Lincoln Electric Aspect 230 AC/DC Water Cooled One-Pak #K4342-1
Aspect 230 AC/DC Water Cooled One-Pak #K4342-1
$9,200.00
INTELLX PRO ROI
$2,132.00
Thermal Dynamics Cutmaster 60i Power Supply #3-5630-1X SHIPS FREE
Thermal Dynamics Cutmaster 60i #3-5630-1X (Power Supply Only)
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$3,439.54
ALUMAPOWER 450 MPA 230/460V
ALUMAPOWER 450 MPA 230/460V
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INTELLX DUAL ROI
$2,297.00
AlumaPower 350 MPa 208-575 Auto
AlumaPower 350 MPa 208-575 Auto
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DELTAWELD 500 575V W/14 PIN
DELTAWELD 500 575V W/14 PIN
$7,995.00
Buy welding gear now on sale Miller Auto-Continuum 350 w/ Centerpoint ACP 45 degree angle picture Miller Auto-Continuum 350 w/ Centerpoint ACP
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Miller AUTO-CONTINUUM 500 #907657
Miller AUTO-CONTINUUM 500 #907657
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Miller XMT® 450 CC/CV 907482 Miller XMT® 450 CC/CV
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Powermax65 SYNC, 200-600V 1/3 PH, CSA PCP Port - 083372
Powermax65 SYNC power supply w/ CPC port (no torch)
$3,550.00
DELTAWELD 500 208-230/460V W/14
DELTAWELD 500 208-230/460V W/14
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The Victor Thermal Dynamics Cutmaster A120 is a powerful, lightweight plasma cutter available from Welders Supply.
THERMAL DYNAMICS Cutmaster A120 1-1735-1
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$6,395.27
Continuum™ Single Swingarc™
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$16,994.00
MAXSTAR 280 (AUTO-LINE 208-575)
MAXSTAR 280 (AUTO-LINE 208-575)
$6,874.00
Pipeworx 400 Welding System 230/460 V #951381
Pipeworx 400 Welding System 230/460 V #951381
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Miller Deltaweld 350 with InsightCore and IntellxPro MIG RunnerPackage Complete #951825 PKG,DELTAWELD 350 MIGRUNNER W/I
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PKG, ARCREACH SUITCASE 12,S-GUN
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Miller Invision 450 MPa, S-74 MPa Plus (Single), Bernard BTB 400 A 15 ft, MIGRunner Pkg buy online Miller Invision 450 MPa, S-74 MPa Plus (Single), Bernard BTB 400 A 15 ft, MIGRunner Pkg
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Miller XMT® 450 ArcReach™, 4-Rack #907700 available at Welders Supply Miller XMT® 450 ArcReach™, 4-Pack Rack
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PKG,XMT 350 FIELDPRO,AR SMART F
PKG,XMT 350 FIELDPRO,AR SMART F
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Miller Invision™ 352 MPa 907431001 Miller Invision™ 352 MPa
Miller Invision™ 352 MPa
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ESAB ET 220i AC/DC HF TIG with Trolley
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$9,339.83
Miller XMT® 350 MPa, Tweco® 907366014 XMT® 350 MPa, Tweco®
XMT® 350 MPa, Tweco®
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PKG,ALUMAFEED 350 MIGRUNNER W/2
PKG,ALUMAFEED 350 MIGRUNNER W/2
$18,307.00
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What is the best welder Miller XMT® 450 CC/CV w/, ArcReach on sale with rebate Miller XMT® 450 CC/CV w/, ArcReach™
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PKG,DELTAWELD 350 MIGRUNNER W/I
PKG,DELTAWELD 350 MIGRUNNER W/I
$10,758.00
DELTAWELD 500 575V
DELTAWELD 500 575V
$7,747.00
220V 3-phase Power Supply

3-phase power is typically only supplied to industrial and manufacturing operations running large motors or do a lot of heavy-duty welding. It is extraordinarily rare for a house to have a 3-phase outlet, and if it does you can bet the homeowner paid dearly for the upgrades necessary for a 3-phase power supply.

To eliminate any confusion, 220v is the same as 230v and 240v. The use of different numbers for the same voltage level is to account for voltage variances, as well as evolving standards in terminology. It’s the same for 110v, which is often referred to as 115v or 120v. Same for 460v, which is also referred to as 440v or 480v. Prior to the National Electrical Manufacturers Association (NEMA) standardizing the voltage ratings on products, the volt ratings for electrical powered appliances and tools were all over the map.

What does a 220v 3-phase power outlet look like?

3-phase power outlets have at least 4 slots. Three of the slots each supply one phase of the current, with the fourth slot being the ground. 

3-phase Welding Machine Outlet

A typical 60a, 250v, 3-phase, 4-wire receptacle

What is 3-phase power, anyway?

Let’s start at the beginning, with the electrical current coming to a building from a transformer which is accessed through an AC outlet.  Alternating current (AC) does just what the name suggests—it alternates from flowing in one direction in a circuit and then reversing and flowing in the opposite direction. While doing this, the voltage supplied at the outlet varies constantly between a maximum positive and maximum negative amplitude.

With the 60Hz power standard in the US, the flow of electrical current alternates 60 times per second. Visualize it as a sine wave with a peak and a base, and you can see the amplitude of the voltage is at zero two times per cycle. When it’s at zero, there is no power supplied. While this doesn’t have any significant effect on most electrical appliances, it’s a real problem when large motors, machinery, and high-powered welders have an inconsistent power supply.

3-phase power remedies this by providing three alternating currents instead of just two. By doing so, the total amount of power coming from all three currents remains constant, free of the dips and peaks inherent with single-phase power. For this reason, virtually all shops using large motors and heavy machinery are equipped with 3-phase power.

Have questions about 220v 3-phase power?

Getting a grasp on electrical requirements isn’t easy for non-electricians, and we can’t cover every conceivable scenario involving 220v 3-phase power here. However, we do have more information on different types of welders by power source. If you have questions about the suitability of a particular welding machine for your shop’s power supply, feel free to give us a call or send us an email. Our technical staff can answer any questions you have. See also, 220v single phase welders.

 

For help with your welding equipment questions, call Welders Supply Company at 1-844-682-0205.
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