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The YESWELDER ARC-400Q WELDER provides a convenient method of performing "stick" welding carbon
steel or stainless steel. Inverter Technology provides the capability of welding thin or heavy gauge steel with
precision and ease. When adding the optional Arc Welder TIG Torch, Gas Regulator, and a cylinder of shield-
ing gas, the ARC400Q becomes a TIG welder.
SPECIFICATIONS
Output
Maximum
Amperage
Input
Range
Amperage
40-400Amps DC
44 Amps
DUTY CYCLE
The rated Duty cycle refers to the amount of welding that can be done within an amount of time. The
YESWELDER ARC-400Q has a duty cycle of 60% at 400 Amps. It is easiest to look at your welding time in
blocks of 10 Minutes and the Duty Cycle being a percentage of that 10 Minutes. If welding at 400 Amps with a
60% Duty Cycle, within a 10 Minute block of time you can weld for 6 Minutes with 4 Minutes of cooling for the
welder. If the Duty Cycle is exceeded, the Welder will automatically shut off, however the fan will continue run-
ning to cool the overheated components. When a safe temperature has been reached, the Welder will auto-
matically switch the welder output back on. To increase the duty cycle you can turn down the Amperage Out-
put control.
READ AND UNDERSTAND ALL INSTRUCTIONS AND PRECAUTIONS BEFORE PROCEEDING. This unit
emits a powerful high voltage and extreme heat which can cause severe burns, dismemberment, electrical
shock and death. yeswelder shall not be held liable for consequences due to deliberate or unintentional mis-
use of this product.
SAFETY INFORMATION
The following explanations are displayed in this manual, on the labeling, and on all other information provided
with this product:
DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION used with the safety alert symbol, indicates a hazardous situation which, if not avoided, could result
in minor or moderate injury.
NOTICE is used to address practices not related to personal injury.
Input
Voltage
Duty Cycle
1phase 208VAC
3phase 220/230/240V
100%@300A
3phase 380/400/440V
3phase 460/480V
100%@155A
Rated
Rod
Diameter
@460V
<5/32"
60%@400A
@220V
@200/230V
<13/64"
60%@200A
@380V
-1-
Rod
Weight
Material
E6010
19.29" [490mm] ×
E6011
20 lbs.
10.827" [275mm] ×
E6011
10kg
E6013
E7018
Overall
Dimensions
16.34" [415mm]
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