View and Submit Quote

New Product Added to Quote Request


Rental Equipment

Lincoln Power Wave S500

Lincoln Electric Power Wave S500 K2904

Top Features

  • PowerConnect - Automatically Adjusts to Input Power
  • Tribrid Power Module - Exceptional Welding Performance with High Power Factor and Efficiency
  • CheckPoint - Cloud Based System To View or Analyze Welding Data
  • Processes: Stick (SMAW), TIG (GTAW), Pulsed TIG, MIG (GMAW), Pulsed MIG, Flux-Cored (FCAW)

The multi-process Power Wave S500 is packed with Lincoln Electric performance technology for welding on thicker materials. It provides an extremely fast arc response, includes over 65 standard welding waveforms for optimized performance on almost any application and efficiently converts input power to reduce operational costs.

View All Lincoln Welders

Product Details


Product Number: K2904-1
Input Voltage: 200/208/220/230/380/400/415/460/575/3/50/60
Input Current @ Rated Output: 3 Ph / 40% Duty Cycle: 80/73/41/37/29
3 Ph / 100% Duty Cycle: 60/54/30/27/21
Rated Output:
Current/Voltage/Duty Cycle
GMAW: 550A/41.5V/40%
GMAW: 450A/36.5V/100%
SMAW: 550A/42V/40%
SMAW: 450A/38V/100%
GTAW-DC: 550A/32V/40%
GTAW-DC: 450A/28V/100%
Output Range: 5 - 550A
Dimensions: H: 22.5" (571 mm) x W: 14" (355 mm) x D: 24.8" (630 mm)
Net Weight: 150 lbs (68 kg)


Stick (SMAW)


Pulsed TIG


Pulsed MIG

Flux-Cored (FCAW)

Additional Features

PowerConnect Technology (Patent-Pending) – Automatically adjusts to input power from 200-600V, 50 or 60 Hz, three phase. Welding output remains constant through the entire input voltage range.

Tribrid Power Module – Exceptional welding performance with high power factor and efficiency.

CheckPoint – A cloud-based system to view or analyze your welding data. Track equipment usage, store weld data, configure fault limits and more.

Standard 115V (10A) AC Duplex Auxiliary Power Receptacle – Features patent-pending Surge Blocker™ Technology to ensure simultaneous welding performance is not compromised by high starting current devices such as grinders (typically requiring 60A or more peak surge current).

Durable Case – IP23 rated to withstand harsh environments.

Standard Ethernet – Allows for effortless software upgrades through

All Product Resources

Options, Accessories and Related Equipment

Related Equipment

View All Lincoln Welders

Lincoln Power Wave S500

Open the calendar popup.
Open the calendar popup.
Credit Card Icons

Airgas, an Air Liquide company, is the nation's leading single-source supplier of gases, welding and safety products. Known locally nationwide, our distribution network serves more than one million customers of all sizes with a broad offering of top-quality products and unmatched expertise.