ES 401S – ARC WATERPROOF Series (IGBT) Inverter DC MMA Welder

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Waterproof, multi-phase IGBT DC MMA welding machine with advanced protection, wide input range, and high-efficiency inverter for robust industrial applications.

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Full Description (Product Details):

Overview:

SMT surface mount design with enhanced PCB protection from over/under voltage and current.
Wide input range: 110V to 280V for single-phase, 280V to 560V for double-phase.
Stable output due to CC feature.
IGBT inverter with modular design and high machine reliability.
High-efficiency inverter (30KHz), reducing energy consumption and improving performance.
Suitable for generator usage and adverse outdoor environments.
Capable of using various electrodes, including low hydrogen and high-strength rods.
Optional 100-meter welding cable extension.
Adjustable arc force knob for fine control.
VRD protection and CE compliance.
Smart cooling and separate air flow design for enhanced durability.

Standard Accessories:

2 pcs 35–50 mm² connectors

Technical Specifications:

Specification	Details
Phase	1PH / 2PH / 3PH
Standard Input Voltage	AC220V ±10% / AC415V ±10%
Valid Input Voltage Range	120V–560V
Frequency	50/60 Hz
Rated Input Capacity	10 KVA
Rated Input Current	45A
Output Voltage	77V
No-load Voltage	79V
Duty Cycle	100% @ 160A / 60% @ 315A
Current Adjusting Range	20 – 400A
Voltage Adjusting Range	20 – 85V
Shell Protection Class	IP21S
Insulation Class	H
Dimensions (mm)	530 × 247 × 420
Net Weight	18 Kg
Suitable Electrode Size	1.6 / 2.5 / 3.2 / 4.0 / 5.0