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| Item | MMA-250 | MMA-315 | MMA-400 | MMA-500 |
| Input voltage(V) ±10% | 3~AC~380 | 3~AC~380 | 3~AC~380 | 3~AC~380 |
| Frequency(Hz) | 50/60 | 50/60 | 50/60 | 50/60 |
| Rated output voltage(V) | 30 | 32.6 | 36 | 40 |
| Output current range(A) | 20-250 | 20-315 | 20-400 | 20-500 |
| Power factor | 0.93 | 0.93 | 0.93 | 0.93 |
| No-load loss(W) | 80 | 80 | 80 | 80 |
| Duty cycle(%) | 60 | 60 | 60 | 60 |
| Rated input current(A) | 15 | 20.5 | 25.5 | 38 |
| Protection class | IP21S | IP21S | IP21S | IP21S |
| Insulation class | F | F | F | F |
| Efficiency(%) | 80 | 80 | 80 | 80 |
| Electrode( mm) | 2.0-5.0 | 2.0-6.0 | 2.0-8.0 | 2.0-10.0 |
| Weight(kg) | 22.5 | 28 | 30 | 36 |
| Dimension(mm) | 530x400x250 | 640x380x615 | 640x380x615 | 650x450x430 |
| Features: | ||||
| -Compact in volume, light inweight and power saved. -Easy to arc in itiation, resistance to interference, good porceadjustment. -Good welding current, low welding spatter. -Protection for over voltage, over current. -Automatic voltage pulsation compensation capalibity. -Applicable for various acid and basic welding electrodes. -Down hand cellulose electodes. -We can produce followed voltage machine on different Country& Area(110V/230V/415V etc.) | ||||
MMA-250 inverter dc ARC MMA welder
