Kemppi Master S 400 (415V)

At Premier Welding we aim to offer amazing value for top quality products. We have put together a selection of machine’s and accessories in "ready to weld" packages to suit all needs and budgets.

Overview

The Master S 400 Stick (MMA) welding machine is built for high-performance professional welding. Compact, robust, and portable, it delivers reliable welding power with optimum energy efficiency. Perfect for heavy-duty MMA applications, the Master S 400 ensures durability, ease of use, and consistent performance on every job.

Description

With a powerful 400 A output, the Master S 400 guarantees excellent ignition and stable arc control. Its advanced design supports a wide voltage network and integrates a Voltage Reduction Device (VRD) for enhanced workplace safety.

Whether working with alternative electrode types or demanding environments, the Master S 400 provides flawless results with maximum reliability. It also includes cellulose welding characteristics, making it the ideal choice for pipeline, construction, and industrial welding projects.

Key Features

• Hot Start & Arc Force Adjustment – Optimized starts and smooth arc control for all electrode types.
• Antifreeze Protection – Automatically cuts off power to prevent electrode sticking.
• Lift TIG (DC TIG) – Contact ignition for TIG applications.
• Arc Gouging Capability – Versatile performance across welding tasks.
• CC/CV Parent Power Supply – Compatible with Kemppi voltage-sensing wire feed systems and in-line TIG solutions.
• Cellulose Welding Support – Designed for demanding applications requiring deep penetration electrodes.

Ideal For

• Pipeline welding
  Heavy-duty fabrication
  Construction and industrial welding
  Professional workshops and on-site welding tasks

Technical Specifications

Mains Voltage: 380–440 V ±10% (3-phase, 50/60 Hz)
Input Power: 18 kVA
Output @ 40°C, 60% Duty Cycle: 400 A (MMA / TIG)
Output @ 40°C, 100% Duty Cycle: 310 A (MMA / TIG)
Power Factor: 0.89
Efficiency: 89%
Recommended Generator Power: 25 kVA
Protection Class: IP23S
Dimensions (L × W × H): 570 × 270 × 370 mm
Weight: 20.5 kg
Standards: IEC 60974-1, -10

Why Choose the Master S 400?

Engineered for professional MMA welding in the toughest conditions.
Compact and portable design – easy to transport without compromising power.
Energy-efficient performance saves costs while maximizing productivity.
Integrated safety features including VRD and antifreeze protection.

The Master S 400 is more than just a welding machine — it’s a professional-grade MMA power source designed for maximum reliability, safety, and efficiency. With its 400 A output, rugged build, and advanced features like Hot Start, Arc Force, and VRD, it is the perfect partner for welders tackling demanding projects in industrial and field environments.