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Miller PipeWorx 400 User Manual

Miller PipeWorx 400
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OM-253 906 Page 17
4-3. MIG Duty Cycle and Overheating
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
If unit overheats, thermostat(s)
opens, output stops, and cooling
fan runs. Wait fifteen minutes for
unit to cool. Reduce amperage or
duty cycle before welding.
NOTICE Exceeding duty cycle
can damage unit and void warranty.
Overheating
0
15
A/V
OR
Reduce Duty Cycle
Minutes
duty1 4/95 240 110-A
Continuous Welding
100% Duty Cycle At 400 Amperes 60% Duty Cycle At 500 Amperes
6 Minutes Welding 4 Minutes Resting
4-4. Stick And TIG Duty Cycle and Overheating
Duty Cycle is percentage of 10
minutes that unit can weld at rated
load without overheating.
If unit overheats, thermostat(s)
opens, output stops, and cooling
fan runs. Wait fifteen minutes for
unit to cool. Reduce amperage,
voltage, wire feed speed, or duty
cycle before welding.
NOTICE Exceeding duty cycle
can damage unit and void warranty.
Overheating
0
15
A/V
OR
Reduce Duty Cycle
Minutes
duty1 4/95 240 110-A
Continuous Welding
100% Duty Cycle At 400 Amperes

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Miller PipeWorx 400 Specifications

General IconGeneral
Amperage Range5 - 400 A
Duty Cycle60% at 400 A
ProcessesMIG, Flux-Cored, Stick, DC TIG, Pulsed MIG
Output Voltage Range10 - 44 V
Wire Feed Speed50 - 780 IPM

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