The CRUXWELD ARC251iS is a 250A inverter welding machine for the 230 V single-phase socket every workshop and site already has. An IGBT digital inverter gives a smooth, low-spatter DC arc from 10 to 250 A; a VRD switch on the back drops the holder voltage to a safe level between welds; anti-stick releases a frozen rod. It runs 1.6, 2.5 and 3.2 mm electrodes all day and 4 mm for intermittent work, on mains or on a generator. Engineered, assembled and tested in India by a GeM Registered OEM Manufacturer.
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Most of the welding in India happens where there is no three-phase supply: a fabrication shop on a 230 V connection, a customer’s site board, a farm shed, a hire-fleet generator. The ARC251iS 250A inverter welding machine is built for exactly that. It draws a maximum of 7.5 kVA from a single-phase socket, compensates for mains fluctuations of ±20%, and holds a steady arc while the supply sags under other loads.
Inside is an IGBT inverter with digital current control for a stable, low-spatter DC arc, reliable ignition with rutile and basic electrodes, and anti-stick to release a frozen electrode without burning the holder. A three-digit display shows the set current; a single knob sets it. Nothing to learn, nothing to misadjust.

The 250A inverter welding machine sits in a steel case with moulded impact bumpers front and rear, louvred sides and forced-air cooling; class H insulation and IP23S protection for outdoor work.

A 250 A class used to mean three phase. The ARC251iS 250A inverter welding machine takes its full output from an ordinary 230 V single-phase supply — a 32 A socket in the shop, a site distribution board or a portable generator — because the inverter, not the transformer, sets the arc.
An arc welder’s open-circuit voltage is what sits on the electrode holder whenever you are not welding. On a dry shop floor it is harmless; in a ship’s double bottom, a wet trench or a boiler drum it is the voltage that goes through a sweating welder lying on steel. A Voltage Reduction Device watches the output and, whenever no arc is burning, reduces the holder voltage to a safe level. The moment the rod touches the plate the full open-circuit voltage returns and the arc strikes normally.
If your tender or safety officer asks for “VRD-equipped” welding sets, the ARC251iS qualifies as supplied.


Typical DC ranges; follow the electrode box for the exact setting. 7018 low-hydrogen, 6013 rutile, stainless and cast-iron rods all run on the ARC251iS.

Need less? The ARC 200 is the lighter single-phase workshop choice. Need 4 and 5 mm rods all day? The three-phase ARC 300 and ARC400iS are built for it.
Longer leads, a hand shield and a carry strap are optional; the exact scope is confirmed on the quotation. See the full range on our products page.

| Parameter | ARC251iS |
|---|---|
| Model | ARC251iS |
| Type | 250A inverter welding machine, IGBT, DC |
| Welding process | MMA / SMAW (stick) |
| Input voltage | 230 V ±20%, single phase |
| Frequency | 50 / 60 Hz |
| Max input power | 7.5 kVA |
| Rated input current | 32 A |
| Open-circuit voltage | 65 V (reduced with VRD on) |
| Welding current range | 10 – 250 A |
| Welding current @ 60% duty | 250 A |
| Welding current @ 100% duty | 195 A |
| Power factor | 0.94 |
| Suitable electrodes | 1.6, 2.5, 3.2 mm; 4 mm intermittent |
| Anti-stick | Yes |
| VRD (voltage reduction device) | Yes, switchable |
| Generator compatible | Yes |
| Protection | Over-voltage, under-voltage, over-current, thermal |
| Cooling | Forced air |
| Degree of protection | IP23S |
| Insulation class | H |
| Dimensions (L × W × H) | 455 × 202 × 372 mm |
| Weight (approx.) | 9 kg |
Specifications are subject to improvement without notice; the quotation and test certificate supplied with the machine are the governing documents. Warranty terms are stated on the quotation / invoice.
Load More
The ARC 250 is the need of the hour in my company and I find the Cruxweld as attractive price with good quality.
Arc 250 arc 200 rate
We will do the needful.
I want this
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
Yes, sir, the machine can run on generator.
We will do the needful.
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
We will do the needful.
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
Sure sir, we will do the needful.
Need 250i, single phase. IGBT.
Plz quote
We are thank you for the enquiry and we will send you the details required for the welding machine.
Dear Sir
Kindly clarify if any Overvoltage/ Overcurrent protection and main Fuse protection (Slow Blow) is available on this device
Thank you for the interest and query. We will do the needful.
I’m interested to buy
In Jabalpur MP me distributor kaha par he addres & service center Jabalpur MP me he kya
sir what is the price of this model 250ARC
I brought long back Arc250S weldind machine. Can i use this on single phase. Please clarify