The Excellent Enterprises ARC-250 Single Phase MOSFET Inverter Welding Machine is the medium-duty workhorse of the ARC single-phase range — built for fabrication shops, structural welders, EPC maintenance crews and repair contractors who have outgrown a 200-amp machine but don’t need (or can’t supply) three-phase power. Delivering a stable 20–250A DC output from a standard 230V line, it steps up electrode capacity to 4.0mm while keeping the portability and efficiency of an inverter.
Product Overview
The ARC-250 is engineered for professionals who weld every day and need dependable medium-duty output. Its MOSFET high-frequency inverter platform with SMT single-board circuitry gives fast arc response, good thermal efficiency and stable current across extended duty cycles. Compared with bulky transformer welders, it is lighter, more portable and more economical to run, while delivering clean, repeatable welds on carbon steel, low-alloy steel and stainless steel.
Key Features
- 20–250A MOSFET inverter output for medium-duty fabrication and repair.
- Electrodes up to 4.0mm (e.g. E6013, E7018) — broader rod range than the ARC-200.
- Automatic Hot Start for fast, clean arc ignition.
- Self-Adaptive Arc Force that stabilises the arc and reduces sticking without raising spatter.
- Anti-Stick to protect the rod and machine on contact.
- 7.4 KVA rated input, 0.93 power factor for efficient draw.
- Full protection — overload, overvoltage, overcurrent, overheat.
- Compact, portable build for workshop-to-site use.
Benefits
The ARC-250 lets a shop take on heavier fabrication and thicker sections than a 200-amp machine without moving to three-phase. Easy strikes, stable arcs and low spatter mean less rework and higher operator productivity; inverter efficiency keeps running cost down; and the portable build suits both bench and site work.
Technical Specifications
| Specification | Details |
|---|---|
| Model | ARC-250 |
| Technology | MOSFET Inverter (SMT single-board) |
| Input Voltage | AC 230V ±15% |
| Phase | Single Phase |
| Output Current | 20A – 250A |
| No-Load Voltage | 70V |
| Rated Input Power | 7.4 KVA |
| Duty Cycle | 60% (DATA REQUIRED: confirm rated amperage) |
| Efficiency | 85% |
| Power Factor | 0.93 |
| Electrode Compatibility | 2.5mm – 4.0mm |
| Process | MMA / Arc (SMAW) |
| Suitable Materials | Carbon Steel, Low-Alloy Steel, Stainless Steel |
| Protection | Overload / Overvoltage / Overcurrent / Overheat / Anti-Stick |
Material & Construction
Compact industrial inverter enclosure with a protected front panel and forced-air cooling, built around an SMT single-board MOSFET design for reliability and serviceability. (DATA REQUIRED: confirm body material/finish and weight; correct the “gunmetal body/copper strip jaw” line, which describes an electrode holder, not this welder.)
Performance Advantages
Higher penetration capability than the ARC-200 for thicker sections; self-adaptive arc force for consistent deposition; energy-efficient MOSFET switching; portable despite the higher output class; reliable protection for unstable Indian power.
Applications
Structural steel fabrication; gate, grill and railing manufacturing; machinery repair; pipe fabrication and maintenance; workshop production; EPC maintenance; construction steelwork; general industrial repair.
Industries Served
Fabrication workshops · structural steel · construction · plant & EPC maintenance · general engineering · pipe fabrication · machinery repair.
Compatibility
Runs on single-phase 230V (±15%); compatible with E6013/E7018 electrodes 2.5–4.0mm. Pairs with our electrode holders, welding cables, electrode drying ovens (for low-hydrogen rods) and welding PPE. (DATA REQUIRED: confirm minimum supply/breaker rating and DG-set compatibility.)
Buying Considerations
- Supply: confirm your 230V point and (once published) the rated input current/KVA so your line or genset can deliver it; 7.4 KVA is the stated input.
- Electrode/thickness: 4.0mm rod capacity suits medium fabrication; match rod and amperage to plate thickness.
- Duty cycle: 60% — for repair/fabrication cycles; for continuous heavy output, consider the ARC-300/400.
- What’s included & warranty: confirm accessories and warranty before ordering.
Why Choose Excellent Enterprises
ISO 9001:2015-certified, ISI-compliant supplier serving 500+ businesses across India since 1997 (29+ years). Genuine, warranty-backed machines, bulk pricing for 10+ units, PAN-India delivery, GST invoicing, OEM/private-label and export support, and a 30-minute quote response. One source for the welder, consumables and PPE.
Maintenance
Blow conductive dust from vents/fan path with dry, oil-free air; keep holder and earth-clamp contacts clean; inspect cables; store dry; don’t block airflow during use.
Safety Considerations
Use a suitable welding helmet, FR clothing and gloves; ensure ventilation/extraction (especially on stainless); verify earthing; isolate before changing connections. Follow IEC 60974-1 and site hot-work procedures.
Frequently Asked Questions
What is the ARC-250 used for? Medium-duty MMA/stick welding — structural fabrication, machinery and pipe repair, gate/grill manufacturing and workshop production — on single-phase 230V with electrodes up to 4.0mm. Is it single phase? Yes, it runs on AC 230V (±15%) single-phase power, suiting workshops and sites without three-phase access. Which electrodes fit? 2.5mm to 4.0mm rods (e.g. E6013, E7018), covering most medium fabrication and repair work. ARC-250 or ARC-300? Choose the ARC-250 (250A, 4.0mm) for medium fabrication; step up to the ARC-300 (300A, 5.0mm) for heavier sections. Will it run on a generator? It operates on 230V with protection for unstable supply; confirm the required input current/KVA (7.4 KVA stated) so the genset is sized correctly. What’s the duty cycle? 60% (confirm the rated amperage) — built for fabrication and repair cycles rather than continuous max output.
Conclusion & CTA
The ARC-250 is a dependable, portable, energy-efficient 250-amp single-phase MOSFET stick welder for medium-duty fabrication and repair — backed by an ISO 9001:2015 supplier with 29+ years of experience. Request a quote today for current and bulk pricing, OEM options and PAN-India delivery.
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