Kemppi MST355ACDCG Master T 355 AC/DC Ready to Weld 350A TIG Welding Packages 400v, 3ph
A professional ACDC TIG welder delivers 350 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.
Productivity innovatations - Master T AC/DC models include unique performance modes: MAX WeldClean establishes Master T as a powerful electrolytic weld cleaner, and DeMagnetization mode eliminates remnant magnetic fields within a workpiece.
Package includes -
- Master T power source
- Cooling Unit (Water Cooled Option)
- MTP35X 7" TFT panel DC AC/DC
- TX 225 G 4M Tig Torch (Air Cooled) TX 355 W 4M Tig Torch (Water Cooled)
- 2 Wheel/4 Wheel Cart
- Earth Cable
Features
• Air or liquid cooled configuration
• Alternative control display options
• 7-inch premium display specification, includes WeldAssist, guiding every welder towards accurate and productive welding, including joint type and welding position selections.
• ACDC models fitted with 7-inch display include MAX WeldClean and DeMagnetization processes
• Optional foot operated, hand or on-torch remote controls
• Two- and four-wheel transport units include floor level cylinder loading
• Wide range of Flexlite TX TIG torches
• Optional WeldEye cloud service for quality welding management
• Designed and manufactured in Finland
• 3 year warranty
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] | 17 ... 14 A |
| Effective supply current [I1eff] | 11 ... 10 A |
| Rated maximum input power [S1max] | 12 kVA |
| Mains fuse | 16 A |
| No-load voltage, MMA/TIG [U0] | 75 ... 95 V |
| Idle power | 20 W |
| Output, duty cycle % at rated max. current, TIG | 30 % |
| Output at +40 °C, rated max current, TIG | 350 A |
| Output at +40 °C, 60% TIG | 230 A |
| Output at +40 °C, 100% TIG | 190 A |
| Output, duty cycle % at rated max. current, MMA | 35 % |
| Output at +40 °C, rated max current, MMA | 270 A |
| Output at +40 °C, 60% MMA | 230 A |
| Output at +40 °C, 100% MMA | 190 A |
| Output range, TIG | 5 A / 1 V ... 350 A / 38 V |
| Output range, MMA | 10 A / 10 V ... 270 A / 39 V |
| Power factor at rated maximum current [λ] | 0.9 |
| Efficiency at rated maximum current [η] | 86 % |
| EMC class | A |
| Minimum short-circuit power of supply network [Ssc] | 1.9 MVA |
| Stick electrode diameter | 1.6 ... 6 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 | 22.5 kg |
| Standards | IEC 60974-1,-3,-10, IEC 61000-3-12, GB 15579.1 |