Fuel Consumption; Duty Cycle And Overheating - Miller Electric Big Blue 400P Owner's Manual

4-5. Fuel Consumption

2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
IDLE
0.25
0.00
0 50

4-6. Duty Cycle And Overheating

OM-4421 Page 18
100 150 200 250
DC WELD AMPERES AT 100% DUTY CYCLE
100% Duty Cycle At 400 Amperes
Continuous Welding
300 350 400 450
The curve shows typical fuel use
under weld or power loads.
500
199 032−A
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.
215 084-A