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  • Allows for any input voltage hookup (208-575 V) with no manual linking, providing convenience in any job setting.
  • Ideal solution for dirty or unreliable power.
  • Meter calibration allows digital meters to be calibrated for certification.
  • Cooler Power Supply (CPS) is an integrated 120-volt dedicated-use receptacle for the Coolmate™ 3.5.
  • Wind Tunnel Technology™ protects internal electrical components from airborne contaminants, extending the product life.
  • Fan-On-Demand™ power source cooling system operates only when needed, reducing noise, energy use and the amount of contaminants pulled though the machine.
  • Lift-Arc™ provides AC or DC arc initiation without the use of high frequency.
  • Blue Lightning™ high-frequency (HF) arc starter for non-contact arc initiation.
  • Provides more consistent arc starts and greater reliability compared to traditional HF arc starters.
  • Program memory features nine independent program memories that maintain/save your parameters.
  • Auto-postflow adjusts the length of postflow time based on the amperage setting, shielding your tungsten and eliminating the need to set the postflow time.
  • Processes: TIG (GTAW), Pulsed TIG (GTAW-P), Stick (SMAW), Air carbon arc (CAC-A), 400: 1/4 in maximum (*Indicates sense-voltage for Lift-Arc™ TIG and Low OCV stick.)
  • Comes Complete with: 8 ft. power cord (no plug), quick reference guide, and (2) 50 mm Dinse-style connectors
  • Complete Packages Come with: 8 ft. power cord, Quick reference guide, Runner™ cart 300244, Coolmate™ 3.5, 4 gallons of coolant, W-375 torch kit, and Remote control.
  • Heavy industrial products are suited to high-volume production and/or welding of thicker materials. They typically have a duty cycle of 60 to 100% and a rated output of at least 300 amps. Heavy industrial products are designed with the arc characteristics and product features professional welders demand for code-quality work.
  • The Auto-Line circuit boosts primary power to a higher, constant voltage. Even if incoming voltage varies widely, the circuit ensures a rock-steady welding or cutting arc.
  • AC/DC: Unit supplies alternating current and direct current weld output.
  • CC: Unit supplies constant-current weld output.
  • 3 Phase: Unit requires three-phase input power.
  • 1 Phase: Unit requires single-phase input power.

  • Product details

Part Number
Manufacturer Part Number
1-phase Amps Input at Rated Output, 50/60 Hz
208 V=52¸ 230 V=47¸ 400 V=26¸ 460 V=22¸ 575 V=17¸ KVA=10.9¸ KW=9.9
1-phase Rated Output
250 A at 29 V¸ 60% duty cycle
1-phase Welding Amp Range
3–400 A
3-phase Amps Input at Rated Output, 50/60 Hz
208 V=28¸ 230 V=26¸ 400 V=14¸ 460 V=13¸ 575 V=10¸ KVA=10.3¸ KW=9.8
3-phase Rated Output
250 A at 30 V¸ 100% duty cycle
3-phase Welding Amp Range
3–400 A
Machine Only Dimensions (Imperial)
24.75 in (H) x 13.75 in (W) x 22 in (D)
Machine Only Dimensions (Metric)
629 mm (H) x 349 mm (W) x 559 mm (D)
Machine Only Dimensions w/TIGRunner® (Imperial)
43.125 in (H) x 23.125 in (W) x 43.75 in (D)
Machine Only Dimensions w/TIGRunner® (Metric)
1¸095 mm (H) x 587 mm (W) x 1¸111 mm (D)
Machine Only Net Weight
134 lb. (61 kg) - with TIGRunner® 251 lb. (114 kg)
Maximum Open-Circuit Voltage
75 VDC (10–15 VDC)
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