Kemppi MST245ACDCGM Master T 245 AC/DC GM TIG/MMA Welder Packages 110/230v
The Kemppi Master T 245 ACDC GM is a professional AC/DC TIG and MMA welding power source designed for welders who demand precision, productivity, and advanced control in demanding environments. Delivering up to 240 amps from a single-phase 230V supply, this multi-voltage machine is suitable for workshop use, site welding, and generator operation.
The Master T range sets the benchmark for weld quality, usability, and energy efficiency in professional TIG welding. The Master T 245 ACDC GM offers smooth and reliable arc ignition, reduced noise levels in DC TIG welding, and enhanced arc control from start to finish. Weld Assist technology helps guide welders to faster and more accurate setup, even at lower current levels, improving productivity without compromising weld quality.
Built with a robust, lightweight construction, the power source weighs 19.1 kg (without accessories) and is designed to withstand tough industrial conditions while remaining easy to transport and handle.
Packages include:- power source, 7" panel DC AC/DC, Tig torch, 5 m earth cable and a two wheel travel cart.
Features
- AC/DC TIG and MMA welding capability
- Multi-voltage 110V / 230V single-phase operation
- Maximum output of 240 A
- Smooth, reliable arc ignition with reduced noise levels
- Weld Assist for faster, guided setup
- Double Pulse TIG for enhanced control and heat management
- MicroTack function for precise tack welding
- AutoCool for efficient cooling control
- MAX WeldClean electrolytic cleaning process (ACDC models)
- Demagnetisation
- mode to eliminate residual magnetism
- Large 7-inch premium display with clear user interface
- Alternative control display options available
- Wired and wireless remote control compatibility (Bluetooth)
- Robust, impact-resistant injection-moulded casing
Technical Data
| Mains connection voltage | 220...240 V ±10 % |
| Mains connection voltage (MV low range) | 110...120 V ±10 % |
| Mains connection phases | 1~50/60 Hz |
| Mains connection cable type | 3G, H07RN-F |
| Mains connection cable size | 2.5 mm² |
| Rated maximum input power [S1max] | 6 kVA |
| Mains fuse | 16 A |
| Mains fuse (@MV low range) | 16 A |
| Idle power | 20 W |
| Output, duty cycle % at rated max. current, TIG | 30 % |
| Output at +40 °C, rated max current, TIG | 240 A |
| Output at +40 °C, 60% TIG | 200 A |
| Output at +40 °C, 100% TIG | 170 A |
| Output, duty cycle % at rated max. current, MMA | 37 % |
| Output at +40 °C, rated max current, MMA | 180 A |
| Output at +40 °C, 60% MMA | 150 A |
| Output at +40 °C, 100% MMA | 120 A |
| Output, duty cycle % at rated max. current, TIG (@MV low range) | 40 % |
| Output at +40 °C, rated max current, TIG (@MV low range) | 130 A |
| Output at +40 °C, 60% TIG (@MV low range) | 120 A |
| Output at +40 °C, 100% TIG (@MV low range) | 90 A |
| Output, duty cycle % at rated max. current, MMA (@MV low range) | 40 % |
| Output at +40 °C, rated max current, MMA (@MV low range) | 85 A |
| Output at +40 °C, 60% MMA (@MV low range) | 75 A |
| Output at +40 °C, 100% MMA (@MV low range) | 55 A |
| Output range, TIG | 5 A / 1 V ... 240 A / 30 V |
| Output range, MMA | 10 A / 10 V ... 180 A / 40 V |
| Output range, TIG (@MV low range) | 5 A / 1 V ... 130 A / 24 V |
| Output range, MMA (@MV low range) | 10 A / 10 V ... 85 A / 35 V |
| Power factor at rated maximum current [λ] | 0.99 |
| Efficiency at rated maximum current [η] | 84 % |
| EMC class | A |
| Arc-on signal for relay | 24 V / 50 mA |
| Stick electrode diameter | 1.6 ... 5 mm |
| Voltage supply for cooling unit | 220...240 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] | 8 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 | 19.1 kg |
| Standards | IEC 60974-1,-3,-10, IEC 61000-3-12, GB 15579.1 |