Created on 07.11

Inverter DC MMA Welding Machine: Dual-Voltage & High Performance

MMA Welder

The ZX7-400K Inverter DC MMA Welding Machine is engineered for efficiency and durability. Its core selling point is the advanced IGBT single-tube main circuit design, ensuring safe and reliable performance. Additionally, it features a versatile dual-voltage system compatible with both 220V and 380V power supplies, making it highly adaptable to various industrial environments.

Technical Functional Characteristics

Designed to meet rigorous welding demands, the ZX7-400K offers the following technical features:

Advanced Circuit Design: Built with an IGBT single-tube main circuit for maximum safety and reliability.
Universal Voltage Compatibility: Seamlessly supports 220V single-phase, 380V single-phase, and 380V three-phase inputs.
Precision Control: Allows for separate adjustment of welding current and arc force current for optimal arc stability.
Comprehensive Protection: Equipped with multiple safety features, including over-heat, over-current, over-voltage, and under-voltage protection.
Heavy-Duty Construction: Features a thickened metal casing, ensuring durability even in harsh working environments.

Technical Parameters

Input Power Voltage: 220V / 380V
Input Rated Current: 7.5 KVA
No-Load Voltage: 70V - 80V
Output No-Load Voltage: 20V - 29.6V
Output Current Range: 20A - 240A
Insulation Grade: F
Ingress Protection Rating: IP21S
Rated Duty Cycle: 60%
Weight: 8.9 KG
Dimensions: 403 x 215 x 399 mm
Applicable Electrode Size: Φ2.5 – Φ4.0
Other Functions: Portable, Air-Cooled, 3-Phase Compatible, DC Output, Temperature Control

Precautions & Usage Guidelines

To ensure optimal performance and safety, please adhere to the following guidelines:

Input Power Cable: Use a 4mm² cable.
Output Cable Specification: Use a 25-35mm² cable.
Power Distribution Switch: Rated at 40A.
Operating Ambient Temperature: -10℃ to +40℃.
⚠️ Safety Notice: You must connect the ground wire and power cable correctly before use to prevent electrical hazards.