PowerArc 280STH

280 amp Stick / TIG welder
Special Price $1,129.55 Regular Price $1,189.00
In stock
The PowerARC 280STH is the most advanced Stick welder that Everlast has ever offered. It is a fully digital DC Stick/TIG machine with TIG pulse capability (up to 250Hz). It features excellent stick arc performance with cellulose, iron powder, and low hydrogen welding rods. This means that the unit easily handles E6010, E 6011, E6013, E7014, E7018, and even stainless 309L or 316L electrodes thanks to the adjustable hot start and arc force controls. A VRD function lowers OCV (Open Circuit Voltage) when the unit is being used in stick mode on jobsites that require it a VRD be fitted for safety or in any environment where electrocution of the user while welding is possible. The unit also features full TIG capabilities for welding Steel, Chrome Moly, Stainless, Titanium and about any weldable metal except Aluminum and Magnesium. 2T/4T Tig controls allows the user the option of using the unit with or without a foot pedal in TIG mode. It also features HF start TIG, and lift start TIG so the user has 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. It clearly belongs in the PowerARC line as it is a perfect fit for pipelines, fab shops, and anywhere one or both processes might be needed to complete the job.
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You're reviewing:PowerArc 280STH
DC output
Commercial performance, excellent for pipe and shipyard use.
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
Setting for cellulosic/E6010/E6011 welding results in optimized stick performance
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 mod
Arc Force control improves short arc performance in stick mode
Pulse TIG function allows operation up to 250 pulses per second (Hz)
IGBT inverter features Infineon IGBT modules for improved reliability and ease of service
Stick electrode holder with 10 ft cable and DINSE 35 style connector
Work clamp with 10 ft cable and DINSE 35 style connector
WP 26 TIG torch with 12 ft cable and DINSE 35 style connector
Consumable Starter Kit (Tungsten not included)
Foot pedal
Argon Regulator
GBT Type:
Module IGBT
Inverter Type:
Output Type:
DC Stick, DC TIG
220/240 V 1/3 PHASE
Max Rated TIG Amps:
Max Rated Stick Amps:
TIG Amps @ Rated Duty Cycle:
280 @ 35% Duty Cycle
Stick Amps @ Rated Duty Cycle:
250A @ 35% Duty Cycle
Max Inrush ( I1MAX ) Amps:
240V 1 phase: 52A
240V 3 phase: 30A
Maximum Rated (I1EFF ) Input Amps:
240V 1 phase: 42A
240V 3 phase: 24A
70V (VRD<24V)
TIG Output Range DC:
Stick Ouput Range DC:
Stick Hot Start Amps:
Stick Function:
Adjustable Arc Force Control
Stick Hot Start Type:
Adjustable Hot Start
Stick Hot Start Time:
0-2 Seconds
6010/Cellulose Capable:
Minimum Amp DC TIG Start:
TIG Start Type:
HF and Lift Start
Start Amp Range:
End Amp Range:
Upslope Time:
0-25 Seconds
Down Slope Time:
0-25 Seconds
Preflow time:
0-25 Seconds
Post Flow Time:
TIG Pulse:
Standard DC Pulse Frequency:
0-250 Hz
Pulse Time On (Duty Cycle):
Pulse Amp Range:
Remote Control:
2T/4T with Torch Amptrol settings
Foot Pedal:
Although the PowerARC 280STH can be used to weld aluminum with the SMAW (Stick) process, welding aluminum with DC TIG is not recommended.

When using this unit with a generator, the generator must be certified as "clean power" by the generator manufacturer. This is usually considered to be less than 5% THD.

If using with a generator, use with a generator rated for at least 12,500 Surge Watts.

Weld with minimum 1/16" electrode
Weld with maximum 3/16" electrode
Maximum electrode size will ultimately depend upon manufacturer and type of electrode. It is possible that up to 1/4" electrode may be used if rated by manufacturer for 250Amp use.


Weld a minimum metal thickness of .007"
Weld a maximum metal thickness in a single pass 1/4"
Weld a maximum metal thickness in multiple passes of .5"
Single/Multiple pass thicknesses recommended on basis of practical limits that take into consideration quality and standard production practices.