KEMPPI MASTER M 205 GM AU POWER SOURCE
Kemppi Master M 205 GM AU — Portable Multiprocess MIG Welder
The Kemppi Master M 205 GM AU is a portable multiprocess MIG welder delivering 200 A from a 240 V or 110 V single-phase supply. Pulse MIG, 1-MIG, DC TIG, and MMA in one 16.2 kg machine. Generator-compatible, Weld Assist, 37 pre-installed programs. Designed for Australian site welders and tradespeople.
What Is the Kemppi Master M 205 GM AU?
The Kemppi Master M 205 GM AU is a compact, professional multiprocess MIG welder engineered specifically for the Australian market. Weighing just 16.2 kg, it delivers 200 A of welding output from a standard single-phase 240 V supply — and doubles as a capable multi-voltage machine, accepting both 240 V and 110 V inputs for maximum site and generator flexibility.
In a single portable unit, the Master M 205 GM AU covers four welding processes: Pulse MIG, 1-MIG (synergic), DC TIG, and MMA (stick) — making it one of the most versatile portable welders available in Australia. Add to that 37 pre-installed factory welding programs, Weld Assist guided parameter setup, and a rugged IP23S-rated build, and the result is a machine that performs to professional standards wherever power is available.
The GM designation confirms generator compatibility and multi-voltage input (240 V or 110 V), and the AU designation confirms it is fitted with an Australian mains plug and meets all relevant Australian standards. With a recommended minimum generator power of just 15 kVA, it is practical to run from common site generators without expensive power infrastructure.
Designed and manufactured in Finland to IEC 60974-1 and -10 standards.
Key Features of the Kemppi Master M 205 GM AU
Four Welding Processes in One Portable Machine
The Master M 205 GM AU supports Pulse MIG/MAG, 1-MIG (synergic MIG/MAG), Manual MIG/MAG, DC TIG, and MMA (stick) welding — all from a single 16.2 kg power source. This multiprocess capability means tradespeople, maintenance crews, and site contractors can cover the full range of fabrication, repair, and installation tasks without carrying multiple machines.
37 Pre-Installed Factory Welding Programs
The Master M 205 GM AU arrives with 37 factory-installed MIG/MAG welding programs ready to use — 20 programs for 1-MIG (synergic) welding and 17 programs for Pulse MIG welding. Programs cover the most common filler wire types and diameters used in Australian industry, including Fe (mild steel), Ss (stainless steel), AlMg5, AlSi5 (aluminium), CuSi3 (silicon bronze), and CuAl8 (aluminium bronze) — from 0.8 mm to 1.2 mm diameter. No additional program purchases required.
Weld Assist — Up to 60% Faster Parameter Setting
Weld Assist is an on-screen guided setup tool that automatically configures welding parameters based on three simple inputs: material thickness, joint type, and welding position. According to Kemppi, Weld Assist enables parameter setup up to 60% faster than manual configuration — a practical advantage for contractors moving between different jobs, materials, and positions throughout the day. It works for both experienced welders who want a fast starting point and for those with limited MIG welding experience.
6 Memory Channels
The Master M 205 GM AU includes 6 user-programmable memory channels for saving frequently used welding parameters. Once configured, a saved channel can be recalled instantly — eliminating repeat setup time across recurring job types and reducing the risk of incorrect parameter entry.
PowerLog Trigger Logic
PowerLog is a trigger-based welding current control function that allows welders to switch between two or three independently configurable power levels during welding by clicking the gun trigger — without stopping or returning to the machine. This is particularly useful for welders who need to adjust heat input between passes, positions, or material thicknesses without interrupting workflow.
Auto Cable Calibration
The built-in automatic cable calibration feature measures total welding circuit resistance and calibrates the digital meters to ensure the arc voltage displayed on screen accurately matches the actual arc voltage at the gun tip. This quality assurance step is essential when cable lengths change on site — the machine prompts recalibration whenever the total gun and earth cable length changes by 5 m or more.
Multi-Voltage Operation — 240 V and 110 V
The GM model accepts both 240 V ±10% and 110 V ±10% single-phase inputs, allowing the same machine to operate from Australian standard mains power, site power boards, or international 110 V supplies. At 240 V, full 200 A output is available; at 110 V the machine delivers up to 120 A — suitable for lighter fabrication and repair work.
Generator Compatible — 15 kVA Minimum
The Master M 205 GM AU is rated for generator operation with a recommended minimum generator output of 15 kVA — achievable with common portable site generators used across Australian construction, mining, agriculture, and resources sectors. The combination of generator compatibility and multi-voltage input makes this machine one of the most site-adaptable portable MIG welders in the Kemppi range.
Self-Charging LED Work Lights
Integrated self-charging LED work lights improve visibility in low-light environments such as confined spaces, night shifts, and shaded outdoor work areas. Crucially, the LED lights operate with or without mains power connected — drawing on their self-charged battery — so they continue to illuminate the work area even during power transitions or generator starts.
Safe Crane Lift Design
The Master M 205 GM AU is rated for safe lifting by crane from its handle, with the full machine weight (including gun, wire, and cables) supported securely. This is a critical safety feature for overhead rigging, boom lifting, and vertical access welding scenarios common on Australian construction and industrial sites.
5" LCD Screen
The bright 5" colour LCD screen provides clear, legible display of all welding parameters in any lighting condition — including direct sunlight on outdoor sites — making it easy to read and adjust settings without moving to a shaded area.
Compact and Lightweight — 16.2 kg
At 16.2 kg without accessories and dimensions of 520 × 250 × 379 mm, the Master M 205 GM AU is genuinely portable — light enough to carry by hand between work areas, up a ladder, or through access hatches on vessels and structures. It's one of the lightest professional pulse MIG welders in its output class.
Water-Cooled Torch Option
While the base model is air-cooled, the Master M 205 GM AU is available in water-cooled packages with the Kemppi Master Cooler 05M unit and GXe 305W water-cooled torch. This extends the effective duty cycle for sustained high-output welding and extends torch consumable life on intensive production applications.
QR Code Product Access
A unique, scannable QR code on every Master M power source provides instant mobile access to product and serial numbers, technical specifications, ordering codes, consumables lists, user manuals, and local dealer or service contact information.
Who Is the Kemppi Master M 205 GM AU For?
The Master M 205 GM AU is designed for:
- Australian site welders and contractors who need professional multiprocess capability from a portable, generator-compatible machine
- Mobile welding services covering fabrication, repair, and maintenance across varied sites and power environments
- Automotive, panel, and motorsport fabricators needing precise pulse MIG for aluminium, stainless, and thin steel in a compact machine
- Maintenance and shutdown welders who require MIG, TIG, and MMA from a single portable unit
- Tradespeople working in confined spaces — vessels, tanks, crawl spaces, and tight access areas where weight and size matter
- Agricultural and rural operators running from site generators where 3-phase power is unavailable
- Welders new to pulse MIG who benefit from Weld Assist's guided parameter setup and pre-installed synergic programs
Available Package Configurations
| Package Code | Configuration |
|---|---|
| P519GXe3AU | Master M 205 GM AU + GXe 305 torch 3.5 m (gas-cooled) |
| P520GXe3AU | Master M 205 GM AU + GXe 305G torch 5 m (gas-cooled) |
| P521CGXe3AU | Master M 205 GM AU + Master Cooler 05M + GXe 305W torch 3.5 m (water-cooled) |
| P522CGXe3AU | Master M 205 GM AU + Master Cooler 05M + GXe 305W torch 5 m (water-cooled) |
Kemppi Master M 205 GM AU — Technical Specifications
| Specification | 240 V Input | 110 V Input |
|---|---|---|
| Product Code | MSM205GMAU | — |
| Power Supply | 1-phase, 220–240 V ±10%, 50/60 Hz | 110–130 V ±10%, 50/60 Hz |
| Mains Fuse | 16 A | 16 A |
| Rated Max Input Power | 6 kVA | 6 kVA |
| Output at 40% Duty Cycle (MIG) | 200 A | 120 A |
| Output at 40% Duty Cycle (MMA) | 175 A | 100 A |
| Output at 60% Duty Cycle (MIG) | 170 A | 95 A |
| Output at 60% Duty Cycle (MMA) | 150 A | 80 A |
| Output at 100% Duty Cycle (MIG) | 140 A | 75 A |
| Output at 100% Duty Cycle (MMA) | 120 A | 65 A |
| MIG Welding Range | 15 A / 10 V – 200 A / 28 V | 15 A / 10 V – 120 A / 21 V |
| TIG Welding Range | 15 A / 1 V – 200 A / 28 V | 15 A / 1 V – 120 A / 21 V |
| MMA Welding Range | 15 A / 10 V – 175 A / 31 V | 15 A / 10 V – 100 A / 24 V |
| Wire Feed Speed | 0.5–25 m/min | — |
| Wire Feed Mechanism | 2-roll, single-motor | — |
| Gun Connection | Euro | — |
| Max Wire Spool Diameter | 200 mm | — |
| Max Wire Spool Weight | 5 kg | — |
| Filler Wire — Fe (Mild Steel) | 0.8–1.0 mm | — |
| Filler Wire — Ss (Stainless) | 0.8–1.0 mm | — |
| Filler Wire — Al (Aluminium) | 0.8–1.2 mm | — |
| Memory Channels | 6 | — |
| Welding Programs — 1-MIG | 20 | — |
| Welding Programs — Pulse MIG | 17 | — |
| Recommended Min Generator | 15 kVA | — |
| Dimensions (L × W × H) | 520 × 250 × 379 mm | — |
| Weight (without accessories) | 16.2 kg | — |
| Protection Class | IP23S | — |
| Operating Temperature | -20°C to +40°C | — |
| Storage Temperature | -40°C to +60°C | — |
| EMC Class | A | — |
| Standards | IEC 60974-1, -10 | — |
| Country of Manufacture | Finland | — |
Frequently Asked Questions:
What does GM AU mean on the Kemppi Master M 205? GM stands for Generator-compatible and Multi-voltage — the machine accepts both 240 V and 110 V single-phase inputs and is rated for generator use. AU denotes the Australian market version, meaning it is fitted with an Australian mains plug and complies with Australian electrical standards.
What welding processes does the Master M 205 GM AU support? The Master M 205 GM AU supports five welding processes: Pulse MIG/MAG, 1-MIG (synergic MIG/MAG), Manual MIG/MAG, DC TIG, and MMA (stick). This multiprocess capability makes it a complete solution for fabrication, repair, and maintenance work across a wide range of materials and applications.
What is the duty cycle of the Kemppi Master M 205 GM AU? At its maximum rated output of 200 A (on 240 V supply), the machine operates at a 40% duty cycle. At 170 A it delivers 60% duty cycle, and at 140 A it runs continuously at 100% duty cycle. On a 110 V supply, the 40% duty cycle output is 120 A, with 100% continuous output at 75 A.
How much does the Kemppi Master M 205 GM AU weigh? The Master M 205 GM AU weighs 16.2 kg without accessories — making it one of the lightest professional pulse MIG welders in its output class and genuinely portable for single-person carry on site.
What generator size does the Master M 205 GM AU need? Kemppi recommends a minimum generator output of 15 kVA to power the Master M 205 GM AU at full welding capacity on 240 V input. This is achievable with common portable site generators widely available in Australia.
What is Weld Assist on the Master M 205 GM AU? Weld Assist is a guided parameter setup tool built into the machine's interface. The welder selects material thickness, joint type, and welding position, and the machine automatically configures all relevant welding parameters. Kemppi states this process is up to 60% faster than manual parameter setup, making it valuable for both experienced welders moving quickly between jobs and those newer to MIG welding.
What is the difference between the Master M 205 GM AU and the Master M 205 GM? Both models share identical welding performance and features. The AU variant is configured specifically for the Australian market with an Australian mains plug fitted as standard. If in doubt, confirm with your Kemppi dealer which model is appropriate for your country and power infrastructure.
Can the Master M 205 GM AU be used for TIG welding? Yes. The Master M 205 GM AU supports DC TIG welding across its full output range (15 A to 200 A on 240 V), making it capable of DC TIG on mild steel, stainless steel, and copper alloys. AC TIG for aluminium is not supported — for AC TIG, see the Kemppi Master T 245 ACDC GM AU.
Does the Master M 205 GM AU support pulse MIG welding on aluminium? Yes. The machine includes 17 pre-installed pulse MIG programs specifically for aluminium (AlMg5 and AlSi5) in 0.8 mm to 1.2 mm diameter. Pulse MIG is the preferred process for aluminium welding, reducing heat input and spatter while improving arc control and weld appearance.
What is PowerLog on the Kemppi Master M 205 GM AU? PowerLog is a trigger logic function that lets welders switch between two or three independently set power levels during welding by clicking the gun trigger — without stopping welding or returning to the machine. It is particularly useful for adjusting heat input between welding passes or when moving between different material thicknesses in the same job.
Is a water-cooled version of the Master M 205 GM AU available? Yes. Water-cooled package configurations (P521CGXe3AU and P522CGXe3AU) include the Kemppi Master Cooler 05M cooling unit and a GXe 305W water-cooled torch, enabling extended duty cycle operation and longer torch consumable life for sustained high-output welding.