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Big 40
®
Diesel CC Control Panel
Welding
Mode
CC/DC
Big 40
®
Diesel CC Specifications
(Subject to change without notice.)
Max. Open-
Circuit Voltage
95
Weld Output
Range
55–500 A
Weld Output Rated
at 104˚F (40˚C)
400 A at 36 VDC (14.4 kW),
100% Duty Cycle
450 A at 38 VDC (17.1 kW),
60% Duty Cycle
500 A at 30 VDC (15 kW),
40% Duty Cycle
Generator Output Rated
at 104˚F (40˚C)
Peak: 5500 watts
Continuous: 4000 watts,
34/17 A, 120/ 240 VAC, 60 Hz
while welding
Net Weight
(without fuel)**
1540 lb (697 kg)
Dimensions*
H: 43 in (1092 mm)
W: 28-1/2 in (724 mm)
D: 64-7/16 in (1637 mm)
NEMA EWI (ANSI C87.1) Class (1) output ratings. *Additional 7 in (178 mm) to top of exhaust. **Additional 190 lb (86 kg) when fuel tank is full.
Big 40
®
Diesel CC Performance Data
100
80
60
40
20
0
0 100 200 300 400 500 600 700 800 900 1000
DC AMPERES
DC VOLTS
Ranges
170 – 365
230 – Max
110 – 225
55 – 85
70 – 130
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
0 50 100 150 200 250 300 350 400
DC WELD AMPERES
AT 100% DUTY CYCLE
US Gal./Hr.
0.00
0.95
1.89
2.84
3.79
4.73
5.68
6.62
7.57
US Liters/Hr.
IDLE
CC/DC VOLT/AMP CURVES FUEL CONSUMPTION CURVE
4 kW
5.5 kW
302520151050
6050403020100
AC AMPERES IN 240 V MODE
AC AMPERES IN 120 V MODE
50
0
100
150
200
250
300
AC VOLTS
0
25
50
75
100
150
125
GENERATOR POWER CURVE
Engine
Brand
CATERPILLAR
Tier III,
C2.2 Diesel
HP
32.6
Type
Four-cylinder,
industrial,
liquid-cooled
diesel
Engine
Speeds
Run: 1850 RPM
Idle: 1250 RPM
Fuel
Capacity
25 gal
(95 L)
Coolant
Capacity
9 qt
(8.5 L)
Automatic Engine
Shutdown
Oil Pressure
Coolant Temperature
Oil
Capacity
9 qt
(8.5 L)
Features
Tier III, EPA-certified, indirect-injected,
liquid-cooled diesel engine. Right-side
service access with service intervals of
500 hours for oil and filters.
Engine Specifications (Subject to change without notice.)
9
10
12
11
13
14
15
4
6
3
1
2
5
7
8
Additional Features
Proven, rugged rheostat control technology
that has been in Miller engine drives for
over 60 years. Contains no printed control
boards.
Provisions are provided to plug a
RHC3GD34A remote control that will allow
precise adjustment of amperage without
walking back to the machine.
1. DC Ammeter*
2. DC Voltmeter*
3. Amperage Adjust Control
4. Amperage Range Switch
5. Amperage Adjust Switch and
Remote Amperage Adjust Receptacle
6. Stick/TIG Selector Switch
7. 120 VAC, 20 A GFCI Duplex Receptacle
8. 240 VAC, 30 A TwistLock Receptacle
(NEMA L6-30)
9. Fuel Gauge/Hour Meter/Oil Change Interval/
Engine Shutdown Indicator
10. Engine Oil Pressure Gauge
11. Battery Voltmeter*
12. Engine Coolant Temperature Gauge
13. Engine Control Switch
14. Starting Aid Switch
15. Polarity Switch*
*Optional on select models.