Ralli Wolf RA40H ARC 400H 400A Heavy Duty IGBT Inverter Arc Welding Machine, 415V 3-Phase for Industrial Welding and Metal Fabrication
The Ralli Wolf RA40H ARC 400H is an industrial IGBT inverter welding machine designed for professional welding, metal fabrication, and maintenance applications. Operating on a 415V three-phase power supply, it offers an adjustable welding current range of 40–400A for a wide variety of electrode welding tasks.
Its inverter technology provides stable arc performance and precise welding current control. The machine is suitable for general-purpose, low-hydrogen, and stainless-steel electrodes. With compatible optional accessories, it can also support scratch-start TIG welding. Optional features may include remote current control, depending on the configuration.
Key Features
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Heavy-duty 400A maximum welding current
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Advanced IGBT inverter technology
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415V three-phase power supply
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Adjustable welding current from 40A to 400A
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Stable DC arc performance
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Suitable for general-purpose and low-hydrogen electrodes
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Supports stainless-steel electrode welding
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VRD (Voltage Reduction Device) facility
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Optional remote current control
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Scratch-start TIG welding with compatible optional accessories
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Designed for industrial workshops and fabrication applications
Applications
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Industrial metal fabrication
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Structural steel welding
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General-purpose electrode welding
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Stainless-steel welding
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Low-hydrogen electrode welding
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Machinery maintenance and repair
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Construction and workshop applications
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Scratch-start TIG welding with compatible accessories
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Ralli Wolf |
| Model | RA40H |
| Product Series | ARC 400H |
| Machine Type | IGBT Inverter Arc Welding Machine |
| Input Voltage | AC 415V ±15% |
| Phase | 3-Phase |
| Frequency | 50/60 Hz |
| Rated Input Current | 23.4 A |
| Rated Input Power | 16.8 kVA |
| Output Current Range | 40–400 A |
| No-Load Voltage | 75 V |
| Rated Output Voltage | 36 V |
| Duty Cycle | 60% |
| No-Load Loss | 80 W |
| Efficiency | 85% |
| Power Factor | 0.93 |
| Insulation Grade | F |
| Housing Protection Grade | IP21 |
| Inverter Technology | IGBT |
| Net Weight | Approx. 18 kg |
Package Details
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1 × Ralli Wolf RA40H ARC 400H IGBT Inverter Welding Machine
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Welding cables, electrode holder, earth clamp, and other accessories: confirm with the supplier before publishing.














