Invertec 400TPX

Invertec® 400TPX


Inverter for TIG DC welding - 400V/3Ph - Output current: 400A @35%


Output Output


Input Input


The Invertec 400TPX have been manufactured in a light-weight but robust outer casing, making them portable and ideal for operation even in the most hazardous environments. These machines feature HF TIG ignition, Lift TIG ignition, 2 or 4 step, variable down slope, post-flow control, digital pre-set meters with hold functions and built-in variable Pulse.


  • Fully functional, user-friendly control panel layout with graph and numeric display makes it easy to set all welding parameters.
  • Rugged construction: electrical safety (IP23S), potted PC boards and optimum airflow reduce contamination to extend the equipment's lifespan in the harshest environmental conditions.
  • HF and Lift TIG ignition meeting all requirements.
  • Perfect TIG HF starting with pre-settable starting mode.
  • Complete TIG parameters setting: Pulse TIG with variable frequency that allows the welder to adjust the arc focus to suit the applications, 10 memory slots for personalized welding settings, TIG Spot welding.
  • Water Coolers and Carts available


Warning -

Cancer and Reproductive Harm -

What's Included

  • Input cable (2m);Gas connection kit

Service Information

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Weights & Dimensions

Dimensions (H x W x D) 632 mm x 301 mm x 455 mm
Net Weight 37 kg

Technical Specifications

Input Current 30A
Input Hertz 50/60 Hz
Input Power 400/3/50-60 Hz (+/-15%)
Input Phase 3 ph
Mode Icon CC
Polarity DC
Rated Output 400A/26V@35%, 300A/22V@100%


Typical Application General Fabrication
Maintenance & Repair
Structural Fabrication


Warranty 3 years