Kemppi MST405DCG Master T 405 DC Ready to Weld 400A TIG Welder Package - 400v, 3ph
A professional DC TIG welder delivers 400 A from a 3-phase 400 V power supply. Suitable for generator use. Master T sets the benchmark for weld quality, usability and energy efficiency in professional AC and DC TIG welding. Designed for welders that demand precision, Master T combines advanced welding performance with durability and ergonomics to excel in any application. Available in power variants up to 500 A, Master T delivers smooth and reliable arc ignition, reduced noise level and enhanced arc control, ensuring consistent, high-quality results from start to finish. Weld Assist technology speeds parameter setups, helping every welder establish benchmark settings by joint type, joint position and material thickness.
Precision from start to finish - Smooth arc ignition allows great control, precision and efficiency. Weld Assist guides every user to faster weld parameter set-up, and lower noise levels help you maintain focus throughout your welding day
Powerful performance - Value-based specifications combine powerful welding capability with additional performance features like Pulse, MicroTack and AutoCool technology, influencing improved welding control, quality, speed and energy efficiency.
Package Includes -
- Master T 405 DC G power source
- Water cooled/Air cooled
- MTP23X Membrane panel DC (push button)
- TX225 G4M TIG Torch/TX 355 W 4M TIG torch
- 2 wheel travel cart (air cooled) 4 wheel travel cart (water cooled)
- Earth cable 5m
Features
- DC TIG welding
- 3-phase
- Gas and water-cooled configurations
- Lower noise levels in DC TIG welding
- Alternative control display options: traditional panels with touch buttons or a full-color TFT panel
- ACDC models include MAX WeldClean and DeMagnetization processes
- 7-inch premium display
- Weld Assist guides welders towards productive welding
- MicroTack, Double Pulse, and AutoCool functions
- Optional two- and four-wheel transport units include floor-level cylinder loading
- Pair with a wide range of Flexlite TX TIG torches
- Optional hand and foot-operated remotes, as well as on-torch remote controls
- Designed and manufactured in Finland
- Optional WeldEye cloud service for welding quality management
Technical Data
| Description | Value |
|---|---|
| Mains connection voltage | 380...460 V ±10 % |
| Mains connection phases | 3~50/60 Hz |
| Mains connection cable type | 4G, H07RN-F |
| Mains connection cable size | 2.5 mm² |
| Maximum supply current [I1max] | 23 ... 19 A |
| Effective supply current [I1eff] | 16 ... 14 A |
| Rated maximum input power [S1max] | 15 kVA |
| Mains fuse | 16 A |
| No-load voltage, MMA/TIG [U0] | 70 ... 95 V |
| Idle power | 16 W |
| Output, duty cycle % at rated max. current, TIG | 30 % |
| Output at +40 °C, rated max current, TIG | 400 A |
| Output at +40 °C, 60% TIG | 320 A |
| Output at +40 °C, 100% TIG | 280 A |
| Output, duty cycle % at rated max. current, MMA | 40 % |
| Output at +40 °C, rated max current, MMA | 350 A |
| Output at +40 °C, 60% MMA | 320 A |
| Output at +40 °C, 100% MMA | 270 A |
| Output range, TIG | 5 A / 1 V ... 400 A / 41 V |
| Output range, MMA | 10 A / 10 V ... 350 A / 42 V |
| Power factor at rated maximum current [λ] | 0.91 |
| Efficiency at rated maximum current [η] | 89 % |
| EMC class | A |
| Minimum short-circuit power of supply network [Ssc] | 2 MVA |
| Stick electrode diameter | 1.6 ... 7 mm |
| Voltage supply for cooling unit | 380...460 V |
| Welding connection type | R1/4 |
| Wired communication type | Analog, Kemppi Remote-Bus |
| Wireless communication type | Bluetooth |
| Transmitter frequency and power | 2400...2483.5 MHz, 10 dBm |
| Operating temperature | -20 ... 40 °C |
| Storage temperature | -40 ... 60 °C |
| Recommended minimum generator power [Sgen] | 20 kVA |
| Degree of protection (fully installed) | IP23 |
| External dimensions, length | 544 mm |
| External dimensions, width | 205 mm |
| External dimensions, height | 443 mm |
| Weight without accessories | 23.6 kg |
| Standards | IEC 60974-1,-3,-10, IEC 61000-3-12, GB 15579.1 |