Site-ready 300 AThe CRUXWELD ARC300iS is a 300 A IGBT inverter stick welder that runs on 230 V single phase or 415 V two-phase and three-phase power. It welds 1.6 to 4 mm electrodes with Hot Start, Arc Force and VRD set from one push-and-turn knob.
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The ARC 300 welding machine (model ARC300iS) gives you full 300 A stick welding in a compact case with one carry handle. Plug it into a 230 V socket at a small workshop, a 415 V two-phase or three-phase line in the factory, or a generator on site.
It welds mild steel, stainless steel and cast iron with electrodes from 1.6 mm up to 4 mm. A digital IGBT inverter keeps the arc smooth and the power factor high, and the protection lamp warns you before the machine overheats.

Supply and warning lamps on the left, the display in the middle, function lamps and the knob on the right.
12345678910Press the knob until the lamp for Current, Hot Start, Arc Force or VRD lights.
Turn the knob to set that value. The display shows it.
Return to Current, check the amps for your rod and strike the arc.
1234Most 300 A stick welders need a three-phase line. The ARC 300 welding machine does not. The ARC300iS also runs from a 230 V single-phase supply, so the same machine works in the factory, the small shop and the site.
Stick welding does not need gas, so it works outdoors, in wind and on rusty steel. The IP23S case of the ARC 300 welding machine is made for that kind of work.


Typical currents for mild steel rods on the ARC 300 welding machine:
30–60 AThin sheet, light repair
60–100 AGates, grills, frames
90–140 AGeneral fabrication
130–190 AStructural fillets
Typical values. Follow the electrode maker’s range for your rod, position and joint.






230 V single phase, 415 V two-phase or three-phase, or a generator.
From thin sheet with 1.6 mm rods to structural work with 4 mm rods.
VRD keeps the holder voltage low between welds; IP23S for outdoor use.
Digital IGBT inverter with a 0.94 power factor and 85% efficiency.
The ARC 300 welding machine sits in the middle of the CRUXWELD ARC range. See all stick (SMAW) welding machines.
CRUXWELD is a GeM Registered OEM Manufacturer. Every machine is tested before dispatch, and you talk directly to the team that knows it.

WhatsApp your job, electrode size and supply (230 V or 415 V). Our team replies with the right setup and a quotation.
| Specification | ARC300iS |
|---|---|
| Input | |
| Model | ARC300iS |
| Input voltage | 230 V single phase, or 415 V two-phase / three-phase; ±15% |
| Frequency | 50 / 60 Hz |
| Max input power @ 100% duty cycle | 9.8 kVA |
| Rated input current (415 V) | 19.5 A |
| Power factor | 0.94 |
| Efficiency | 85% |
| Generator compatible | Yes |
| Output | |
| Welding process | MMA / SMAW (stick), DC |
| Open circuit voltage | 65 V |
| Welding current range | 10–300 A |
| Welding current @ 60% duty cycle | 300 A |
| Welding current @ 100% duty cycle | 240 A |
| Suitable electrodes | 1.6, 2.5, 3.2 and 4 mm |
| Controls | |
| Display | Digital |
| Adjustable functions | Current, Hot Start, Arc Force |
| VRD | Yes |
| Indicator lamps | Power, 230V, 415V, O.C (protection) |
| Build | |
| Technology | Digital IGBT inverter |
| Cooling | Forced air |
| Degree of protection | IP23S |
| Insulation class | H |
| Dimensions (L × W × H) | 426 × 212 × 357 mm |
| Weight (approx.) | 14 kg |
Confirm cable lengths and any extras with our team on WhatsApp.