3-3. Duty Cycle And Overheating
30% Duty Cycle At 225 Amperes AC
3 Minutes Welding
50% Duty Cycle At 175 Amperes DC
5 Minutes Welding
Overheating
3-4. Volt-Ampere Curves
A. DC Mode
OM-321 Page 12
7 Minutes Resting
5 Minutes Resting
0
15
Minutes
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
A
OR
Reduce Duty Cycle
rduty1 5/95 − 002 120-B
The volt-ampere curves show the
minimum and maximum voltage
and amperage output capabilities of
the welding power source. Curves
of other settings fall between the
curves shown.
B. AC Mode
ssb1.1 10/91 − 002 696-A / 002 689-A