Shanghai Donsun Welding Group VRD Fuction 400A 500A High Load Rate Industrial Machine ZX7-400B/500B MMA Manual Metal-arc Welder
Adaptive voltage, easy current matching
VRD function, it safe for welders.
ARC force and hot start adjustable, easy to striking the arc
Auto-protection against over-voltage, over-current and over-heated.
Easy to operate-calibrated current control knob makes procedure setting simple and easy
Inverter technology
Over heat /over current protection
VRD
Intelligent air cooling
Model | MMA-400B | MMA-500B |
Rated input voltage(V) | 3P 380V ±15% | 3P 380V ±15% |
Input frequency(HZ) | 50/60 | 50/60 |
Rated input capacity(KVA) | 10.5 | 12.5 |
Rated input current (A) | 27 | 33 |
Duty cycle (%) | 40 | 40 |
No-load voltage(V) | 72 | 72 |
Current range (A) | 50-320 | 50-360 |
Voltage range(V) | 20-32 | 20-32 |
Efficiency (%) | 89 | 89 |
Power factor | 0.93 | 0.93 |
Rod diameter(mm) | Ø2.5- Ø5 | Ø2.5- Ø6 |
Weight (kg) | 16.5 | 18.5 |
Dimension(mm) | 500*245*460 | 530*255*480 |
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