P M 13 7 9
2
Definition
Duty Cycle is percentage of 10
minutes that unit or gun can weld
at rated load without overheating.
FIGURE 2-2 DUTY CYCLE CURVES.
60% Duty Cycle At 250 Amperes
MINUTES
6 Minutes Welding
4 Minutes Resting
2-2 DUTY CYCLE.
WELDING LONGER THAN RATED DUTY CYCLE can damage unit and void warranty.
Do not weld at rated load longer than shown below.
CAUTION
20
100
150
200
250
300
35
60
90
40
70
100 %
30
50
Duty Cycle
Rated output
W
e
ld
A
m
p
e
re
s
80
