XTT 503 AC/DC Pulsed TIG Inverter

AC/DC Output
The XTT 503 can be used in both AC and DC modes for TIG or MMA welding allowing the welding of virtually any material.
Square wave AC output and power pulsing maximises productivity whilst reducing heat output.

The majority of steels can be welded in DC mode quickly using the pulse power function. The AC mode allows the welding of aluminium and magnesium alloys.

The square wave output and adjustable frequency maximises the arc energy offering high welding speeds when coupled with the power pulsing function.

Generator Friendly
The XTT 503 AC/DC is able to cope with inputs which fluctuate by +/-15% and can be used with the majority of generators.

Professional Level Dual Voltage DC TIG Inverter, suitable for industrial manufacturing, metal fabrication, aluminium fabrication, stainless steel fabrication and training.

SKU: XTT 503AC/DC Category:

Additional information

Output Current

10-500A DC
15-500A AC

Input Voltage

400V 3P

Duty Cycle

500A @ 60%

Attribute:Pre-Flow Function


Up Slope Function


Down Slope Function


Fuse Rating


Input Current (Max)




Attribute:Pulse Rating


Attribute:Post Flow Function


Dimensions (mm)

735 x 360 x 655

Enclosure Protection


Attribute:AC Frequency


Weight (kg)


Key Features

•400V Three Phase
• 500A @ 60% Duty Cycle
• Square wave AC TIG mode
• Variable AC frequency
• Variable pulse frequency
• HF arc starting
• Adjustable downslope (TIG)
• Digital control
• Optional foot control
• Easy electrode striking with arc force (MMA)
• Easy electrode re-striking with arc force (MMA)
• Generator friendly
• Supplied with 3m earth lead
• Connections 35-50 Dinse
• Sturdy metal case
• 3 years return to base warranty
• Manufactured to IP23S, ISO/IEC 60974-1, ISO/IEC 60974-6 and RoHS Compliant


XTT 503 AC/DC Standard Package

XTT503-P1W Package

XTT503-P1W2 Package

XTT503-P1W3 Package

  • XTT503 Catalogue Page
  • Machines Catalogue Section
  • Instructions XTT503
  • Certificate of Conformance XTT503
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