Flextec 350X PowerConnect (Tweco) (K4273-1)

Lincoln Electric

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Compact and portable 350A multi-process power source. Supports Stick, TIG, MIG, Pulsed MIG, Flux-Cored, Gouging processes. Compatible with any input voltage 200-600V 1 or 3-phase. CrossLinc compatible.


  • A Rugged Multi-Process Power Source For Maximum Flexibility
    • Out on the construction jobsite or in most fabrication shops, it pays to keep it simple. The Flextec 350X PowerConnect multi-process welder is designed for that kind of environment. These multi-process welders are easy to setup and easy to operate, yet rugged and flexible enough to be used in construction, fabrication, shipbuilding and other heavy-duty applications.
  • Simple
    • Streamlined operator panel minimizes setup time
    • Plug in to any 200-600V, 1 or 3 phase power
    • Easy process selection
  • Reliable
    • Built on industry proven design elements of other popular Lincoln Electric welders
    • Components designed to run cool for long life in high temperature environments
    • Fully encapsulated and environmentally protected electronics
    • Engineered for outdoor use and harsh environments (IP23 rated)
  • Flexible
    • Compatible with across-the-arc, analog, digital or CrossLinc feeders
    • Premium multi-process arc characteristics works with all DC wire, stick and TIG processes
    • Choice of models to fit any application and budget
    • Lightweight and portable
  • Product Highlights
    • Connects automatically to any input voltage anywhere in the world. 200-600V single or 3-phase, 50 or 60Hz
    • Capable of basic pulsed MIG output for greater control and reduced spatter
    • Desert Duty Rated for extreme temperatures up to 55C
    • Offered in 4-pack and 6-pack inverter rack configurations
    • Wide 5-425A amperage range
    • Capable of arc gouging with up to 1/4" carbons
  • CrossLinc Technology
    • Full functionality without control cables
    • Enables remote procedure setting at the feeder to improve weld quality
    • Increase arc time with fewer trips to the power source to adjust settings
    • Improves safety by reducing jobsite clutter

What's Included

  • 8.5ft 4 conductor/ 8 AWG input power cable


  • MIG
  • Flux-core
  • Stick
  • TIG

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Extra Information

Lincoln Electric
Input Phase:
1~ or 3~
Input Voltage:
208/230/460/575 V
MIG Welding Thickness Capability (steel):
>1/2 in.