OM-270 231 Page 11
SECTION 4 − SPECIFICATIONS
4-1. Serial Number And Rating Label Location
The serial number and rating information for this product is located on the back. Use rating label to determine input power requirements and/or rated
output. For future reference, write serial number in space provided on back cover of this manual.
4-2. Unit Specifications
Rated Welding
Output
Amperage
Range
Maximum Open-
Circuit Voltage
DC
Amperes Input at
Rated Load Output
115 V, 60 Hz, Single-
Phase
KVA KW
Weight
W/ Gun
Overall
Dimensions
80 A @ 18 Volts DC,
20% Duty Cycle
45 A @ 16.25 Volts
DC, 60% Duty Cycle
30 A @ 15.5 Volts DC,
100% Duty Cycle
30 − 100
40 21.2 2.69 2.45
44 lb
(20 kg)
Length: 16 in.
(406 mm)
Width: 10 in.
(254 mm)
Height: 13-1/2 in.
(343 mm)
Wire Type
And Diameter
Flux Cored Wire Feed Speed Range
.030 − .035 in.
(0.8 − 0.9 mm)
27 − 99 RPM At No Load
4-3. 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 or duty cycle before welding.
NOTICE − Exceeding duty cycle can
damage unit or gun and void warranty.
Continuous Welding
2 Minutes Welding 8 Minutes Resting
Overheating
0
15
A or V
OR
Reduce Duty Cycle
Minutes
20% duty cycle at 80 amps
Output Amperes
Duty Cycle %
6 Minutes Welding 4 Minutes Resting
0
20
40
60
80
100
120
rduty1 2013−04 − 270 506-A
60% duty cycle at 45 amps
100% duty cycle at 30 amps
10 10020 40 60 80
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