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China Full Bridge IGBT Inverter Welding Machine 220V/380V - Suppliers & Factory Direct Quality Welding Equipment
Detailed Information
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Electrical Connection Warning: Connection must be carried out after turning off the power switch of the distribution box!
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IP21S Protection Level: The welder shall not be used in the rain without cover!
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Usage Restriction: It is forbidden to use the welding power source for pipe thawing!
To ensure personal safety and avoid electric shock accidents, please connect the earth wire (yellow and green wires) to the distribution box earthing device reliably. The cross-sectional area of the conductors for the distribution box shall meet the requirements of maximum input capacity.
Output Line Connection Methods
Insert the cable plug of the welding clamp and the cable plug of the earth clamp into the quick outlet on the front panel of the welder respectively and screw them clockwise. Operators can choose the connection method according to the base metal and the electrode.
DC Positive Connection Method: Welding clamp to negative pole (-), workpiece to positive pole (+).
DC Reverse Connection Method: Welding clamp to positive pole (+), workpiece to negative pole (-).
Note: In general, DC reverse connection is recommended for basic electrodes, whereas for acid electrodes, there is no particular requirement.
Routine inspection is vital for the high use performance and safe operation of the welder. The routine inspection shall be conducted according to items in the table below, and cleaning or replacement shall be conducted if necessary. For the purpose of ensuring the high performance of the welder, the components provided or recommended by our company shall be used for the replacement of components.
Main Features
All movements adopt the latest and mature IGBT full-bridge inverter technology.
Quickly identify 220-380V power grid technology, automatically converting the output current according to the input network voltage.
Complete undervoltage, overcurrent, overheating and other protection functions, safe and secure.
Built-in thermal arc and thrust, suitable for acidic, alkaline welding materials.
Continuous arc, no arc deflection, no sticking of welding rod.
Can be used with generator, and can be welded with 100m cable.
Standard three-proof design, suitable for various conventional harsh environments, simple and convenient to operate.
Application areas: hardware processing / decoration / outdoor installation / building construction and other civil fields.
Working Connection Diagram
Product Parameters
| Model | ZX7-250K | ZX7-315K | ZX7-400K | |||
| Input Voltage | AC220V | AC380V | AC220V | AC380V | AC220V | AC380V |
| Input Frequency | 50Hz/60Hz | 50Hz/60Hz | 50Hz/60Hz | |||
| Rated Input Capacity | 6.6Kva | 7.7Kva | 7Kva | 8Kva | 8.5Kva | 11.4Kva |
| Rated Input Current | 30A | 20A | 32A | 21A | 39A | 30A |
| No Load Voltage | 80V | 66V | 76V | 66V | 76V | 66V |
| Rated Output | 160A/26.4V | 180A/27.2V | 180A/27.2V | 200A/28V | 200A/28V | 250A/30V |
| Output Current | 30-250A | 30-315A | 30-400A | |||
| Rated Duty Cycle | 50% | 75% | 40% | |||
| Efficiency | 80% | 80% | 80% | |||
| Insulation Class | F | F | F | |||
| Shell Protection Grade | IP21S | IP21S | IP21S | |||
| Suggested Electrode Max. | Φ2.5-4.0 | Φ2.5-4.0 | Φ2.5-4.0 | |||
| Dimensions | 340*190*330mm | 370*200*355mm | 405*215*390mm | |||
| Weight | 5.9Kg | 8.6Kg | 9.8Kg | |||
Installation Attentions
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Input voltage: AC180-240V 50/60Hz
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Input cable: 4mm², length ≤ 3m
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Output cable: 16-25mm²
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Ambient temperature: -10℃ ~ +40℃
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Usage condition: Good ventilation conditions, pay attention to dust, moisture and waterproofing.
Standard Accessories
1x Electrode Holder
1x Ground Clamp
1x Welding Mask
1x Brush/Hammer
Optional Accessories
Welding Helmet
Welding Gloves
Electrodes E6013
Lift TIG TORCH
Frequently Asked Questions (FAQ)
What safety measures must be taken before making electrical connections?
Electrical connections must only be made after turning off the power switch of the distribution box. Additionally, the earth wire (yellow and green wires) must be reliably connected to the distribution box earthing device to prevent electric shock.
Can this welder be used outdoors in rainy conditions?
The protection level of the welder is IP21S. It must not be used in the rain without an appropriate protective cover.
What is the difference between DC positive and DC reverse connection?
DC positive connection connects the welding clamp to the negative pole and the workpiece to the positive pole. DC reverse connection connects the welding clamp to the positive pole and the workpiece to the negative pole. DC reverse connection is generally recommended for basic electrodes.
Does this welding machine support generator power and long-distance welding?
Yes, this welder is compatible with generator usage and supports welding operations with cable lengths up to 100 meters.
What environmental conditions are required for installation and operation?
The welder should be operated within an ambient temperature range of -10℃ to +40℃. The site must have good ventilation, and precautions should be taken to protect the device against dust, moisture, and water.
What protection mechanisms are built into the welder?
The welder features complete built-in safety protection systems, including undervoltage protection, overcurrent protection, and overheating protection to ensure safe and reliable operation.