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INTRODUCTION
The Miniarc 150 APS is a small, portable, inverter based power source for MMA or TIG welding using the scratch start
method. The unit provides up to 140A welding current and operates from either 230V or 115V single phase AC electricity
supplies. The unit contains automatic supply voltage sensing circuitry so that no tap changes are required. The Miniarc
150 APS is housed in an all metal enclosure, a small fan at the rear providing cooling for the internal semiconductor com-
ponents. A thermal sensor built into the unit will shut the unit down should the unit overheat due to exceeding the duty
cycle. A front panel warning light illuminates under such circumstances. Wait approximately 10 minutes for unit to cool
and it will reset itself.
In combination with an optional HW17V TIG torch and Argon gas supply the Miniarc 150 APS can be used for DC TIG
welding.
Specifications
Primary Input Voltage/Phase ..................................115/208/230Vac, 1 ph., 50/60 Hz.
Voltage Tolerance ......................................................................................................... +/- 10%
115V Operating Data:
Output Range (Stick) ......................................................................... 5A/20V to 85A/23.5V
Stick Duty Cycle & Rated Output ..........................................100% - 85 amps @ 23.4 v
Output Range (Tig) ............................................................................. 5A/20V to 100A/14V
TIG Duty Cycle & Rated Output ..........................................100% - 100 amps @ 14.0 v
TIG Duty Cycle & Rated Output ............................................60% - 130 amps @ 15.0 v
Primary Input Current @ 100% Duty Cycle ........................................................19 Amps
Primary Input Current @ 60% Duty Cycle ...........................................................26 Amps
Open Circuit Voltage (max) ...............................................................................................80v
230V Operating Data:2
Output Range ....................................................................................... 5A/20V to 150A/26V
Stick Duty Cycle ....................................................................... 110 amps/24.5 v @ 100%
Stick Duty Cycle ...........................................................................140 amps/25.6 v @ 60%
TIG Duty Cycle ........................................................................... 110 amps/14.5 v @ 100%
TIG Duty Cycle ................................................................................. 150 amps/16 v @ 60%
Primary Input Current @ 100% Duty Cycle ........................................................17 Amps
Primary Input Current @ 60% Duty Cycle ...........................................................23 Amps
Open Circuit Voltage (max) ...............................................................................................80v
Efficiency ................................................................................................................................ 83%
Power Factor .............................................................................................................................81
Net Weight ..........................................................................................................18 lbs. (8.2 kg)
W x L x H .......................................5.75in. (146mm) x 15in. (381mm) x 11in. (279mm)
SECTION 1 DESCRIPTION
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