Auxiliary Power Curve; Duty Cycle - Miller Trailblazer 300D NT Owner's Manual

3-4. Auxiliary Power Curve

280 140
240 120
200 100
160 80
120 60
80 40
40 20
0 0
0
0

3-5. Duty Cycle

300
275
250
225
200
175
150
0
10
20 40 60 80
AC POWER AMPERES AT 120V
10 20 30 40
AC POWER AMPERES AT 240V
100% Duty Cycle at 290 Amperes DC
Continuous Welding
20 30 40 50
% DUTY CYCLE
100 120 140 160
50 60 70 80
DC/CV
DC/CC
AC/CC
60 70 80 90 100
The ac auxiliary power curve
shows the auxiliary power available
in amperes at the receptacles.
ST-189 268
Duty cycle is the percentage of 10
minutes that unit can weld at rated
load without overheating.
Y Exceeding duty cycle can
damage unit and void
warranty.
ST-189 274
OM-487 Page 11