WB-P400 GMAW Inverter Power Supply

WB-P400

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The P400 is an all-around model for welding iron, stainless, and aluminum with a single unit. This model achieves high-quality pulse welding by performing optimized waveform control according to type of metal being welded. Arc stability is perfect, even during high-speed welding.

WB-P400 Key Features & Benefits

• Optimized Pulse GMAW modes for a wide variety of materials

• TIG-like bead on aluminum, stainless and carbon steels

• Compensates for irregularities in shielding gases

• Improved weldability of zinc coated steels


Specification Value
Number of phases 3
Rated frequency 50/60Hz
Rated input voltage 208/230V, 460V
Input voltage range 208/230V ±10%, 460V ±10%
Rated input power DC 18.2/18.0kVA 16.3/16.8kW Pulse 19.6/19.7kVA 18.1/18.1kW, DC 19.0kVA 17.9kW Pulse 20.7kVA 18.5kW
Rated input current DC:50.5/45.0A Pulse:54.3/49.5A; DC:23.8A, Pulse:25.9A
Rated output current 400A
Rated load voltage 34.0V
Rated output current range 30 - 400A
Rated output voltage range 12.0 - 36.0V
Maximum no-load voltage 83/92V, 80V
Rated duty cycle 50%
Number of welding conditions 100
Operating temperature range 14º F to 104º F (-10 to +40º C)
Operating humidity range less than 50%, 104º F (40º C), less than 90%, 68º F (20º C)
Storage temperature range -13º F to +131º F (-25 to +55º C)
Storage humidity range less than 50%, 104º F (40º C), less than 90%, 68º F (20º C)
Dimensions (W x D x H) 15.6 x 28.0 x 31.9 in. (395 x 710 x 810mm)
Mass 185.2 lbs (84kg)
Rated input power for DC TIG scratch start 14.8kVA 12.6kW / 14.5kVA 12.6kW / 14.5kVA 13.0kW
Rated output current for DC TIG scratch start 400A
Rated load voltage for DC TIG scratch start 26.0V
Rated output current range for DC TIG scratch start 10 - 400A
Rated duty cycle for DC TIG scratch start 50%
Rated input power for DC STICK scratch start 13.3kVA 11.2kW / 12.9kVA 11.2kW / 12.8kVA 11.5kW
Rated output current for DC STICK scratch start 300A
Rated load voltage for DC STICK scratch start 32.0V
Rated output current range for DC STICK scratch start 20 - 300A
Rated duty cycle for DC STICK scratch start 50%