PowerARC 280STH


  • New Bezel and stackable feature!
  • Dependable IGBT inverter
  • Single Phase/Three Phase, 220V only
  • DC Stick/TIG functions
  • High Frequency and Lift TIG start
  • Foot Pedal included
  • VRD function
  • Adjustable hot start and arc force controls
  • 2T/4T TIG controls
  • Built in gas solenoid

In stock

PowerARC 280STH $1,275.00

The Everlast PowerARC 280STH is a 280 amp stick and DC TIG welder that features excellent stick arc performance. Thanks to adjustable hot start and arc force controls, it easily handles E6011, E6013, E7014, E7018, and even stainless 309L or 316L electrodes.   The unit also features full TIG capabilities for welding steel, chrome, moly, stainless, titanium and just about every other weldable metal except aluminum and magnesium. 2T/4T TIG controls allows the user the option of welding with or without the included foot pedal in TIG mode.  It also features HF start TIG, and lift start TIG resulting in the ability to work in HF sensitive environments.  A built in gas solenoid, with adjustable pre and post gas flow controls, allow the unit to automatically control gas flow without the use of a manual gas valve located on the torch. With up to 250 amps Stick, and 280 amps of TIG welding power, the PowerARC 280STH is designed to function equally well with both Stick and TIG processes. 

Features & Benefits
  • New Bezel and stackable feature!
  • Stable, smooth DC arc, 220v only
  • Digital display for precise current setting
  • VRD function for reduced OCV in stick mode improves safety and operator protection
  • Full 2T/4T control parameters in TIG mode, including up and down slope, start and end amps
  • 240V Outlet in rear for optional WC375 water cooler
  • Hot Start Time adjustment in Stick mode improves arc starting characteristics
  • Hot Start Intensity adjustment in Stick mode reduces sticking upon striking an arc in Stick mode
  • Upgraded NOVA Foot pedal for TIG
  • Pulse TIG function allows operation up to 250 pulses per second (Hz)
  • 5-280 amps operating range (220V)
  • IGBT inverter features IGBT modules for improved reliability and ease of service
What's Included
  • 4M Everlast #26 series TIG torch with 35 series DINSE-style connector
  • Stick Electrode Holder with 3m cable and 35 series DINSE-style connector
  • Work clamp with 3m cable and 35 series DINSE-style connector
  • NOVA Foot Pedal
  • Everlast Argon Regulator
  • Starter Consumable Starter Kit (Tungsten not included)
  • 1.8m Power input cable with NEMA 6-50 Plug
Tech Specs
IGBT Type:
Inverter Type:
Output Type:
DC Stick, DC TIG
220/240V,1/3 PHASE
Max Rated TIG Amps:
  • 280A
Max Rated Stick Amps:
TIG Amps @ Rated Duty Cycle:
  • 280A@35% Duty Cycle/ 40º C
  • 220A@60% Duty Cycle/40º C
  • 170A@100% Duty Cycle/40º C
Stick Amps @ Rated Duty Cycle:
  • 250A@35% Duty Cycle/ 40º C
  • 200A@60% Duty Cycle/40º C
  • 160A@100% Duty Cycle/40º C
Max Inrush ( I1MAX ) Amps:
  • 240V-1 Phase:52A
  • 220V-3 Phase:30A
Maximum Rated (I1EFF ) Input Amps:
  • 240V:1 phase   32A
  • 240V:3 phase: 18A
  • 70V (VRD<24V)
TIG Output Range DC:
Stick Ouput Range DC:
  • 5A-250A
Stick Function:
Adjustable Arc Force Control
Stick Hot Start Type:
Adjustable Hot Start
6010/Cellulose Capable:
Yes (Short Arc)
Minimum Amp DC TIG Start:
TIG Start Type:
  • High Frequency
  • Lift Start
Post Flow Time:
TIG Pulse:
Remote Control:
2T/4T with Torch Amptrol settings
Foot Pedal:
Minimum Maxmimum
  • Weld with a maximum of 3/16" diameter electrode (Maximum electrode diameter ultimately depends upon type and manufacturer)
  • Weld with a minimum of 1/16" diameter electrode
  • Weld a maximum of 1/2"
  • Minimum thickness of 1/8"
  • Unit is not intended for use with Aluminum or Magnesium
Optional Equipment
  • Everlast Series Rotating Head TIG Torches
  • Everlast Series Slim Line Flex Neck Series
  • Everlast Series ProFlex Series
  • Amperage Slide Control
  • WC375 Water  Cooler
  • ProCart
  • Welder Cover
  • Use only with generators that are certified as clean power (less than 5% total harmonic distortion) by the generator manufacturer. Use with at least 3500 watt generator for 120V use, and a 6500 watt generator for 240V use. Damage to units caused by underrated, or "dirty" power generators is not covered under warranty.
  • This unit is DC output only. It is not designed to weld Aluminum.
  • Specifications and accessories subject to change without notice.
  • This unit is wired for Single Phase ONLY.
If you require 3 phase on this unit - It MUST be noted at the point of sale.