
Official Technical Catalog (PDF)
Download Wiring Diagrams & Ratings
The ARC 400 ST is designed for high-demand industrial welding applications requiring consistent power across long operational hours. With a 20–400A output range and multi-phase compatibility (1+2+3 phase), it provides unmatched flexibility and reliability across diverse working conditions. It supports 4.0mm electrodes with ease and offers a smooth, stable arc ideal for heavy structural welding, fabrication workshops, and continuous production environments. The machine integrates advanced overload, voltage, and current protection systems ensuring maximum safety and performance. Its robust body, high-duty cycle, and premium quality inverter technology make it an ideal choice for industrial manufacturers and professionals.
₹16,827
20A-300A
220V/440V AC
40% @ 400A
IGBT inverter-Based
1.6mm - 5.0mm Compatible
IP21S
Live Showroom Demo & Immediate Pickup
Peenya Industrial Area, Bengaluru · Mon–Sat: 9:00 AM – 8:00 PM
| Technology | IGBT inverter-Based |
|---|---|
| Input Voltage | 220V/440V AC |
| Output Current | 75A-400A DC |
| Stud Range | M6-M16 |
| Welding Time | 0.1-2.0 sec |
| Duty Cycle | 40% @ 400A |
| Construction | Yellow Metal Housing |
| Mobility | Sturdy Wheels |
| Weight | 85 kg |
| Applications | Steel Construction, Ship Decks, Bridge Construction |
| Material Compatibility | Mild Steel, Stainless Studs |
| Rated Input Voltage (V) | AC 220V/440V |
| Input Frequency (Hz) | 50/60 |
| Rated Power (kVA) | 8.1 |
| Rated Input Current (A) | 50 |
| No Load Voltage (V) | 75 |
| Rated Output Current (A) | 20A-300A |
| Duty Cycle (%) | 60 |
| Power Factor | 0.73 |
| Efficiency (%) | 85 |
| Insulation Class | F |
| Protection Class | IP21S |
| Gross Weight (kg) | 12 |
| Welder Size | 451×222×360 |
| Packing Size | 520×310×460 |
| Supported Electrode | 2.5(100%) - 3.15(100%) - 4.0(40%) |



