Fuel Consumption; Duty Cycle And Overheating − 50 Hz Operation - Miller Electric Big Blue 400 PX Owner's Manual

4-6. Fuel Consumption

2.00
1.75
1.50
1.25
1.00
0.75
0.50
ID LE
0.25
0.00
0 50
DC WELD AMPERES AT 100% DUTY CYCLE − 60 HZ
4-7. Duty Cycle And Overheating − 50 Hz Operation
OM-223 037 Page 18
100 150 200 250
The curve shows typical fuel use
under weld or power loads.
300 350 400
100% Duty Cycle At 250 Amperes
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.
217 509
Continuous Welding
223 179-A