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270Amp IGBT Dual Module Inverter ARC Welding Machine - China Factory Suppliers with Soft Start Circuit
Safety Notice: To ensure safety, regular inspections must be carried out by professionals. Regular inspection must be carried out after the power supply of the distribution box and the unit are turned off to avoid causing electric shock, burns and other personal injuries. Because of the capacitor discharge, it is necessary to cut off the power supply of the welder and wait for 5 minutes before inspection.
All maintenance and repair work must be done with the power completely disconnected. Please make sure the power is unplugged before opening the housing. When the welder is energized, keep your hands, hair and tools away from the live parts inside such as fan in case of personal injury or damaging the welder.
- All movements adopt the latest and mature IGBT full-bridge inverter technology.
- With thermal arc starting function, arc starting is more efficient.
- Dual IGBT module, reliable operation performance.
- Acid/alkaline electrodes, stainless steel electrodes for stable welding.
- Complete undervoltage, overcurrent, overheating and other protection functions, safe and secure.
- The thrust current is continuously adjustable, effectively solving the problems of sticking welding rod and arc interruption.
- Accurate digital display current preset, easy and intuitive operation.
- Standard three-proof design, suitable for various conventional harsh environments, simple and convenient to operate.
Working Connection Diagram
| Model | ZX7-400 |
| Input Voltage | AC 380V |
| Input Frequency | 50Hz/60Hz |
| Rated Input Capacity | 12Kva |
| Rated Input Current | 18A |
| No Load Voltage | 65V |
| Rated Output | 295A/31.8V |
| Output Current Range | 30-400A |
| Rated Duty Cycle | 50% |
| Efficiency | 90% |
| Insulation Class | F |
| Shell Protection Grade | IP21S |
| Suggested Electrode Max. | Φ2.5-5.0mm |
| Dimensions | 498*280*413mm |
| Weight | 11.7KG |
- Input voltage: 380V AC±10% 50/60Hz
- Input cable: 6mm², length ≤ 3m
- Power switch: 63A
- Output cable: 50mm², length: ≤ 20m
- Ambient temperature: -10℃~+40℃
- Usage condition: No blocked on air inlet & outlet. No sunlight exposure. Pay attention to dust prevention.
1x Electrode Holder
1x Ground Clamp
1x Welding Mask
1x Brush/Hammer
Welding Helmet
Welding Gloves
Electrodes E6013
Lift TIG Torch
What safety measures are required before inspecting the ZX7-400 welder?
Always turn off the power supply of both the distribution box and the unit first. Due to capacitor discharge, you must wait for at least 5 minutes after cutting off the power before opening the housing or proceeding with the inspection.
What is the input voltage requirement and power switch specification?
The welder requires an input voltage of AC 380V ±10% at 50/60Hz, and it should be configured with a 63A power switch.
What kind of electrodes can be used with this welding machine?
The ZX7-400 is suitable for acid/alkaline electrodes and stainless steel electrodes, with a suggested maximum electrode diameter of Φ2.5-5.0mm.
What inverter technology does the welder use?
It utilizes the latest mature IGBT full-bridge inverter technology alongside a dual IGBT module for highly reliable operating performance.
What protection functions are built into the machine?
The machine features complete built-in safety protection systems, including undervoltage, overcurrent, and overheating protection functions.
What are the ambient temperature and environmental requirements for usage?
It operates best in temperatures between -10℃ and +40℃. Ensure that the air inlet and outlet are not blocked, avoid direct sunlight exposure, and prevent dust accumulation inside the unit.