ARC251iS 250A Inverter Welding Machine – 230 V & 415 V

ARC251iS
250 A IGBT inverter · stick (MMA) welding

ARC 250 welding machine: 250 A stick welding, set in seconds.

The CRUXWELD ARC251iS is a portable 250 A inverter welding machine for MMA (stick) welding that runs on both a 230 V single-phase supply and a 415 V two-phase or three-phase supply. Set current, Hot Start and Arc Force with one knob, read them on the digital display, and switch on VRD for safer site work.

10–250Amps
230VSingle phase
415V2 & 3 phase
VRDBuilt in
230 V + 415 VHot StartArc ForceAnti-stickVRDGenerator compatible

GeM Registered OEM Manufacturer · Supported Worldwide · 45+ years of welding expertise

Price, delivery & technical help — get a fast response.

Overview

Overview

A portable 250A inverter welding machine for stick welding

The ARC251iS is a 250A inverter welding machine that gives smooth DC welding power for most metals: alloyed and non-alloyed steel, stainless steel and cast iron.

Its IGBT inverter uses less energy than an old transformer welder, works with any type of electrode, and sits in a rigid, IP-rated dustproof case with the control panel protected against accidental knocks.

ARC251iS 250A inverter welding machine with electrode holder and earth clamp

10–250 A output

From thin sheet with 1.6 mm rods up to 3.2 mm rods at full speed and 4 mm on intermittent work.

230 V and 415 V

Runs on 230 V single phase, or on 415 V two-phase and three-phase. One machine for the workshop and the site.

VRD for safety

Lowers the open-circuit voltage at the holder whenever no arc is burning.

Stable arc, low spatter

Outstanding arc stability with basic and acid electrodes, plus anti-stick.

Control panel

Everything on the ARC 250 welding machine panel, explained

One display, eight indicator lamps and one push-and-turn knob. The red-marked controls set the weld.

ARC251iS digital control panel: power, 230V, 415V and O.C lamps, display, Current, Hot Start, Arc Force, VRD and parameter knob12345678910
  1. 1Power lampLights when the machine is switched on.
  2. 2230V lampLights when the machine runs on a 230 V single-phase supply.
  3. 3415V lampLights when the machine runs on a 415 V two-phase or three-phase supply.
  4. 4O.C lampProtection warning: lights on overload or overheating. Let the machine cool; it resets itself.
  5. 5Digital displayShows the value of the parameter you are setting: current in amps, or the Hot Start and Arc Force level.
  6. 6CurrentWelding current, 10 to 250 A. Match it to the electrode size.
  7. 7Hot StartA short boost at the moment the arc strikes, for easy starts even with difficult electrodes.
  8. 8Arc ForceAdds current when the arc gets short, so the rod keeps burning instead of sticking.
  9. 9VRDLights when the voltage reduction device is active: lower voltage at the holder between welds.
  10. 10Para. / Function switchPush to choose Current, Hot Start or Arc Force; turn to set the value.
Arc controls

Hot Start, Arc Force and Anti-stick on the ARC 250 welding machine

Three functions that make stick welding easier for every welder, new or experienced.

Boost at strikeSet current
Hot Start

Easy arc strike

A short burst of extra current at the moment of strike heats the rod tip, so the arc lights first time, even with basic electrodes.

Short arc: boostSet current
Arc Force

No sticking mid-weld

When the arc gets too short, the machine adds current to keep it burning. Useful for vertical, overhead and root runs.

Rod stuck: cut
Anti-stick

Free the rod easily

If the rod sticks to the plate, the current drops at once, so it breaks free without overheating the holder or the rod.

Operator safety

VRD lowers the voltage when you are not welding

The Voltage Reduction Device keeps the voltage at the electrode holder low while no arc is burning, and restores full power the moment the rod touches the work.

  • Damp sites, tanks, trenches and confined spaces
  • Shipyards, refineries and work at height
  • Sites whose safety rules call for VRD
Open-circuit voltage, VRD off65 V
At the holder between welds, VRD onReduced
Rod touches the workFull power
Electrode guide

Which rod, which current on a 250 amp welding machine?

Works with basic and acid electrodes. Typical current ranges for mild steel rods:

ElectrodeTypical currentOn the 10–250 A range
1.6 mm30–60 A
2.5 mm60–100 A
3.2 mm90–140 A
4.0 mm130–180 A (intermittent)

Typical values. Follow the electrode maker’s range and fine-tune with Arc Force for position welding.

Look closer

The ARC 250 welding machine from every side

ARC251iS 250 A inverter welding machine: front
Front
ARC251iS 250 A inverter welding machine: side
Side
ARC251iS 250 A inverter welding machine: ready to weld
Ready to weld
ARC251iS 250 A inverter welding machine: holder and earth clamp cables
Holder and earth clamp cables

Where it is used

Fabrication shopsMaintenance and repairConstruction sitesGates, grills and furnitureAgriculture equipmentPipelines and plumbingGenerator-powered field work
Why welders choose it

What you get with the ARC 250 welding machine

01

Easy to carry, easy to run

A compact inverter with a top handle that runs from a 230 V single-phase socket, a 415 V two-phase or three-phase line, or a generator.

02

Strikes first time

Automatic Hot Start and reliable arc ignition cut wasted time and rework.

03

Safer on site

VRD lowers the voltage at the holder between welds for damp, confined or elevated work.

04

Built for Indian supply

Automatic compensation for mains fluctuations within ±20%, with overheat and overcurrent protection.

Backed by Cruxweld

45+ years of welding expertise. Supported Worldwide.

CRUXWELD is a GeM Registered OEM Manufacturer. You talk directly to the team that knows this machine.

ARC251iS front panel with digital display and parameter knob

Get the ARC 250 welding machine price

WhatsApp the material, electrode size and your supply (230 V or 415 V). Our team replies with the right setup and the price.

Specifications

Technical data

ARC 250 welding machine (ARC251iS) specifications

SpecificationARC251iS
Input
ModelARC251iS
Type250A inverter welding machine, IGBT, DC
Welding processMMA / SMAW (stick)
Input voltage230 V single phase, or 415 V two-phase / three-phase; ±20%
Frequency50 / 60 Hz
Max input power7.5 kVA
Rated input current (230 V)32 A
Power factor0.94
Generator compatibleYes
Output
Open-circuit voltage65 V (reduced with VRD on)
Welding current range10–250 A
Welding current @ 60% duty250 A
Welding current @ 100% duty195 A
Suitable electrodes1.6, 2.5, 3.2 mm; 4 mm intermittent
Controls and protection
DisplayDigital
Adjustable functionsCurrent, Hot Start, Arc Force
Anti-stickYes
VRD (voltage reduction device)Yes
ProtectionOver-voltage, under-voltage, over-current, thermal
Build
CoolingForced air
Degree of protectionIP23S
Insulation classH
Dimensions (L × W × H)455 × 202 × 372 mm
Weight (approx.)8 kg

Key features

  • Outstanding arc stabilitySmooth DC output with any type of electrode.
  • Automatic Hot StartBetter arc striking with the most difficult electrodes.
  • Arc Force and anti-stickStable arc, low spatter, no stuck rods.
  • Digital displayFriendly interface for precise current setting.
  • Basic and acid electrodesMild steel, alloyed steel, stainless steel and cast iron.
  • Mains compensationAutomatic compensation for fluctuations within ±20%.
  • ProtectionOverheat and overcurrent protection.
  • Generator compatibleRuns on a suitable generator set; fan-cooled.

Accessories

What’s in the box

Supplied with the ARC 250 welding machine

  • 1 unitARC251iS 250A inverter welding machine
  • 1 setElectrode holder with cable
  • 1 setEarth clamp with cable
  • FittedMains cable
  • 1 pcTest certificate

Longer leads and a hand shield are available on request.

Question & Answers

FAQ

ARC 250 welding machine: questions buyers ask

What can the ARC251iS weld?
Alloyed and non-alloyed steel, stainless steel and cast iron, with basic or acid electrodes from 1.6 to 3.2 mm, and 4 mm on intermittent work.
Does the ARC 250 welding machine run on single phase or three phase?
Both. The ARC251iS runs on a 230 V single-phase supply and on a 415 V two-phase or three-phase supply, 50 or 60 Hz, with automatic compensation for mains fluctuations within plus or minus 20%. The 230V and 415V lamps on the panel show which supply it is running on.
What do Hot Start and Arc Force do?
Hot Start gives a short boost of current when the arc strikes, so it lights easily. Arc Force adds current when the arc gets short, so the rod keeps burning instead of sticking. Both are set with the push-and-turn knob and shown on the display.
What is VRD and when should I use it?
VRD (Voltage Reduction Device) lowers the voltage at the electrode holder whenever no arc is burning and restores it the moment the rod touches the work. Use it for damp, confined or elevated work and wherever site safety rules call for it.
What does the O.C lamp mean?
It is the protection warning. It lights if the machine is overloaded or overheats. Let the machine cool with the fan running; it resets on its own.
Can I run the ARC 250 welding machine on a generator?
Yes. A 10 kVA or larger generator with a reasonably clean output runs the ARC251iS at full current.
What size breaker does it need?
On 230 V single phase it draws up to 7.5 kVA, or 32 A, at full output, so a 32 A breaker is recommended. On 415 V the current per line is lower. At the currents used for 2.5 and 3.2 mm rods the draw is much lower.
What is included with the 250 amp welding machine?
The ARC251iS, electrode holder and earth clamp with cables, a fitted mains cable and a test certificate. Longer leads and a hand shield are optional.
What is the ARC 250 welding machine price and delivery time?
WhatsApp +91 88008 82983 with your quantity and city. Our team replies with a GST quotation and delivery time, usually the same working day.

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19 Comments

  1. The ARC 250 is the need of the hour in my company and I find the Cruxweld as attractive price with good quality.

  2. ARC 250 , CMM-ARC250i , Digital Inverter Based
    SIR YE MACHINE Genratore per chalega esaka quotation bhajie

    SIR ESAME IGBT WALA MACHINE MILEGA TO AAP UASA KIMAT BHEGIE
    AUR

  3. ARC 250 , CMM-ARC250i , Digital Inverter Based
    SIR YE MACHINE Genratore per chalega esaka quotation bhajie

    SIR ESAME IGBT WALA MACHINE MILEGA TO AAP UASA KIMAT BHEGIE
    AUR

    Reply

  4. Dear Sir,
    We are required 200 amp portable welding machine = 05 Nos and 400amp portable welding machine = 02 Nos.
    Please send the quotation

    Regards

    Jameel khan
    M/s Star Enterprises
    M: 8077208051

    1. We are thank you for the enquiry and we will send you the details required for the welding machine.

  5. Dear Sir

    Kindly clarify if any Overvoltage/ Overcurrent protection and main Fuse protection (Slow Blow) is available on this device

  6. In Jabalpur MP me distributor kaha par he addres & service center Jabalpur MP me he kya

  7. I brought long back Arc250S weldind machine. Can i use this on single phase. Please clarify

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ARC251iS 250A Inverter Welding Machine – 230 V & 415 V

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