Features / Description
MMA Arc 400 Inverter Welding Machine – MMA Welding with VRD Safety Feature, Multi-Phase Input (120V–560V) | Versatile & Heavy-Duty Welding Solution
The MMA Arc 400 Inverter Welding Machine is a high-performance, multi-phase welding solution engineered for maximum flexibility and safety. Designed to operate across 1-phase, 2-phase, and 3-phase power supplies, with an input voltage range of 120V to 560V, this machine adapts effortlessly to diverse power environments—making it ideal for fieldwork, workshops, and industrial sites.
Powered by advanced IGBT inverter technology, it delivers a stable arc, deep penetration, and high efficiency while minimizing energy consumption. The integrated VRD (Voltage Reduction Device) enhances operator safety by reducing open-circuit voltage when the machine is idle, especially in damp or hazardous conditions.
Whether you're welding mild steel, stainless steel, or cast iron, the Arc 400 ensures consistent performance, low spatter, and reliable output for demanding applications.
⚙️ Technical Specifications
Specification | Details |
Model | MMA Arc 400 VRD |
Technology | IGBT Inverter |
Input Voltage Range | 120V – 560V |
Phase Compatibility | 1 Phase / 2 Phase / 3 Phase |
Frequency | 50/60 Hz |
Rated Input Power | ~18–22 kVA |
Output Current Range | 40A – 400A |
Duty Cycle | 60% @ 400A |
No-Load Voltage | ~65V (Reduced with VRD) |
Welding Process | MMA (Manual Metal Arc / Stick Welding) |
Electrode Diameter Supported | 2.5 mm – 3.15 mm |
Cooling System | Forced Air Cooling |
Efficiency | ≥85% |
Power Factor | ≥0.93 |
Display | Digital meters for current and voltage |
Protection Features | Overheat, Overcurrent, Phase Loss, VRD Safety |
Weight | Approx. 0 kg |
Dimensions (L×W×H) | ~0 × 0 × 0 mm |
Applications | Fabrication, Construction, Maintenance, Field Welding, Industrial Use |
💡 Key Features
Wide Voltage Range – Operates from 120V to 560V across multiple phases
VRD Safety Feature – Reduces idle voltage for enhanced operator protection
High Output Capacity – Up to 400A for heavy-duty welding tasks
Digital Control Panel – Real-time monitoring and precise current control
Flexible Power Input – Ideal for unstable or variable power environments
Durable Industrial Build – Rugged design for long-term reliability
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Welding Machine with Inverter Technology with IGBT or MOSFET for efficient power conversion, energy-saving, stability and light weight
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