Miller Electric 302 - Manual (Page 3)

3
Performance Data
Miller Legend ® 2-Generator Advantages
• The Miller Legend is the only gas or LP powered welding generator that produces
60 Hz generator power at 1800 RPM. This provides maximum fuel economy and
the lowest sound levels. More Guts, More Glory!
• Separate weld and power generators are designed for specific functions. This is
why the 4-pole, 3-phase weld generator is the most efficient and produces the
best arc quality with a precise, yet simple and reliable weld control design.
• No interaction between grinders, power tools, etc. and the welding arc.
• Generator power is independent of weld control settings.
• Has the industry’s strongest power while welding.
Power is in the Numbers
• Tools and motors are designed to operate within 10% of 120/240 VAC. The Miller
Legend’s power generator provides strong power while keeping the voltage
within 10% of 120/240 VAC. This increases tool/motor performance and life.
See Generator Power Curve.
• Tested and rated at higher temperatures, 104˚ F (40˚ C), to ensure consistent
operation in all climates.
• Patented generator control technology matches the generator’s output to engine
horsepower. This provides more weld output and lowers fuel consumption.
VOLT/AMP CURVES (MAXIMUM)
AMPS
VOL
TS
DUTY CYCLE CHART
0 10 20 30 40 50 60 70 80 90 100
% DUTY CYCLE
100
150
200
250
300
350
WELDING AMPERES
MIG/FCAW
STICK
High Med-
High
Med-
Low
STICK
DIG: Low
WIRE
0
10
20
30
40
50
60
0 100 200 300 400 500 600 700
GENERATOR POWER CURVE
0 5 10 15 20 25 30
AC AMPS
0
50
100
150
200
250
300
AC VOL
TS
FUEL CONSUMPTION CURVE
3000 RPM Weld
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
0 100 150 200 250 300
DC WELD AMPERES AT 100% DUTY CYCLE
US GAL/HR.
1.98
0.95
2.84
3.78
5.67
4.73
6.62
7.57
LITERS/HR.
0.00
3600 RPM Weld
Generator
at 5 kW Generator
at 4 kW
Generator
at 2 kW Generator
at 1 kW
Generator
at 3 kW
Idle (At 1800 RPM)
The Miller Legend has
2 generators — a 4-pole,
3-phase weld generator and
a strong power generator.
Weld Power
Generator Power
Fuel Consumption Data
• 12-gallon fuel capacity.
• On a typical job using 1/8-in 7018 electrodes (125 A, 20% duty cycle) you can
expect over 20 hours of operation.
• Welding at 150 A at 40% duty cycle, uses approximately 3/4 gallon
per hour — over 16 hours of operation.
• A 2 kW generator load at 50% duty cycle uses less than 1/2 gallon
per hour — over 24 hours of operation.
Mounting Specifications
A. 20 in (508 mm)
B. 16-1/2 in (419 mm)
C. 1-3/4 in (44 mm)
D. 6-1/16 in (154 mm)
E. 32-3/4 in (832 mm)
F. 45-3/8 in (1153 mm)
G. 13/32 in (10 mm) diameter Height: 33-1/2 in (851 mm)
(to top of exhaust)
Width: 20 in (508 mm)
Depth: 45-7/8 in (1164 mm)
4 Holes
Engine End
G
A B
C
D
E
F