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Studio Generator EGS1200C3 Diesel generator


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Prime Rating: 60 kW (75kVA)
60 Hertz

WhisperWatt DCA300SSC drawing




Performance Data
Prime Rating 140 kW 175 kVA
Generator RPM 1800
Voltage - Three Phase 120/208V
Voltage - Single Phase 120/240V
Generator Design Revolving field, Self-ventilated, Drip-proof, Single bearing
Voltage Regulation (No Load to Full Load) ±1 %
Power Factor 0.8
Armature Connection 12-Lead WYE
Excitation Brushless with AVR
No. Poles 4-pole
Frequency 60 Hz
Frequency Regulation (steady state load) ±0.25 %
Insulation Class H
Notice: Features and equipment specifications are subject to change without notice.



Standard Features:


Optional Generator Features:


Trailer Standard Features:


Alternator Specifications
Manufacturer/Model Marathon Magnaplus / 431PSL6206
Type 4-Pole, Rotating field
Exciter Type Brushless, voltage regulated
Number of Leads 12 Lead
Insulation NEMA MG1-1.66
Material Class H
Generator RPM 1800
Power factor 0.8
Coupling Single bearing, flexible
Cooling Air Volume 1200 CFM

Voltage Regulation

(no load to full load)

Single Step Load Acceptance per NFPA 110 100% of rating


Engine Specifications
Make/Model Cummins/QSL9-G2
Model, Type 4-cycle, turbocharged, charge air cooled
Cylinder Arrangement 6 In-line
Displacement 8800cc
Bore 4.49in. (114mm)
Stroke 5.69in. (145mm)
Compression Ratio 16.8 : 1
Piston Speed 1707 ft/min
Cylinder Block Cast Iron
Cylinder Head Cast Iron
Crankshaft Nodular Iron
Brake Mean Effective Pressure 260 psi (1792 kPa)
Rated RPM 1800 rpm
Max Power at Rated RPM 320 hp
Governor Type Crystal Sync Electronic

Frequency Regulation:

No load to full load

Isochronous under varying loads
from no load to 100% rated load
Frequency Regulation:
Steady State
+0.25% of mean value for constant
loads from no load to full load
Air Cleaner Type Replaceable, Paper Insert


Fuel System
Fuel Tank Capacity 150 gal (567.7 L)
Diesel Fuel at % of Load gal/hr (L/hr)
100% 16.8 (64)
75% 13.4 (51)
50% 9.3 (35)
25% 4.7 (18)


Rated Voltage Max Amps
120/240V 800A
120/208V 1200A


Engine electrical System
Battery Charging Alternator Make Cummins
Ground Type Negative
Volts (DC) 24V
Ampere Rating 65A
Starter Motor Make Bosch EV
Starter Motor Rated Voltage 24VDC
Starter Motor Battery Capacity 2 X 750 cca



Studio Generator EGS1200C3 Spec Sheet