Engine Specifications; Control Panel; Performance Data; Additional Features - Miller Electric Big 40 Diesel Specifications

Big 40 ® Diesel CC Specifications
Welding Weld Output Weld Output Rated
Mode Range at 104˚F (40˚C)
CC/DC 55 – 500 A 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
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.

Engine Specifications

(Subject to change without notice.)
Engine
Brand Features
CATERPILLAR Tier III, EPA-certified, indirect-injected,
Tier III, liquid-cooled diesel engine. Right-side
C2.2 Diesel service access with service intervals of
500 hours for oil and filters.
®
Big 40 Diesel CC Control Panel

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
Big 40 ® Diesel CC Performance Data
CC/DC VOLT/AMP CURVES
100
80
60
40
20
0
0 100 200 300 400 500 600 700 800 900 1000
DC AMPERES
2
(Subject to change without notice.)
Max. Open-
Circuit Voltage
95
HP Type
32.6 Four-cylinder,
industrial,
liquid-cooled
diesel
1
2
3
4
5
6
7
8
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
150 300
Ranges
125 250
230 – Max
170 – 365
100 200
110 – 225
70 – 130
55 – 85
75 150
50 100
25 50
0 0
0
0
Generator Output Rated
at 104˚F (40˚C)
Peak: 5500 watts
Continuous: 4000 watts,
34/17 A, 120/ 240 VAC, 60 Hz
while welding
Engine Fuel
Speeds Capacity
Run: 1850 RPM 25 gal
Idle: 1250 RPM (95 L)
GENERATOR POWER CURVE
4 kW
5.5 kW
5 10 15 20 25 30
AC AMPERES IN 240 V MODE
10 20 30 40 50 60
AC AMPERES IN 120 V MODE
Net Weight
Dimensions* (without fuel)**
H: 43 in (1092 mm) 1540 lb (697 kg)
W: 28-1/2 in (724 mm)
D: 64-7/16 in (1637 mm)
Oil Coolant Automatic Engine
Capacity Capacity Shutdown
9 qt 9 qt Oil Pressure
(8.5 L) (8.5 L) Coolant Temperature
9
10
11
12
13
14
15
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.
FUEL CONSUMPTION CURVE
7.57 2.00
6.62 1.75
5.68 1.50
4.73 1.25
3.79 1.00
2.84 0.75
1.89 0.50
0.95 0.25
IDLE
0.00 0.00
0 50 100 150 200 250 300 350 400
DC WELD AMPERES
AT 100% DUTY CYCLE