Fuel Consumption; Duty Cycle And Overheating - Miller Electric Big Blue 300 Owner's Manual

4-4. Fuel Consumption

2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
IDLE
0.00
0 50
DC WELD AMPERES AT 100% DUTY CYCLE

4-5. Duty Cycle And Overheating

1000
800
600
500
400
300
250
200
150
100
10
100 150 200
1
CV
15 20 25 30
% DUTY CYCLE
250 300 350 400
CC
40 50 60 80 100
The curve shows typical fuel use
under weld or power loads.
217 509
1 100% Duty Cycle
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
.
This unit is rated for welding at
250 amperes continuously.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
217 515
OM-4433 Page 17