CCEC QSNT-G3-A Generator Engines
| Engine Model | QSNT-G3-A |
| Standby Power | 392 kW (525 HP) @ 1500 RPM |
| Prime Power | 358 kW (480 HP) @ 1500 RPM |
| Compression Ratio | 15.0 : 1 |
| Type | 4 Cycle; 6 Cylinder |
| Fuel System | CMS MCRS |
| Aspiration | Turbocharged & Aftercooled |
| Emission Standard | Euro II |
| Displacement | 14L |
| Bore * Stroke | 140 mm * 152 mm |
| Packing Size (L * W * H) | 1534 mm * 781 mm * 1355 mm |
General Infomation of CCEC QSNT-G3-A Generator Engines
| General Infomation of CCEC QSNT-G3-A Generator Drive Engine | |||
| Engine Model | QSNT-G3-A | Configuration | D093677GX03 |
| Prime Power | 358 kW (480 HP) @ 1500 RPM | CPL No. | 4691 |
| Continuous Power | 321 kW (430 HP) @ 1500 RPM | Compression Ratio | 16.3 : 1 |
| Standby Power | 392 kW (525 HP) @ 1500 RPM | Fuel System | CELECT |
| Emission Certificatio | STG IIIA, NRMM 3 | Displacement | 855 in3 / 14 L |
| Aspiration | Turbocharged & Charge Air Cooled Intercooler | Type | 6-Cylinder; In-line; 4-Cycle |
| Bore * Stroke | 5.5 in. * 6.0 in. / 140 mm * 152 mm | Firing Order | 1-5-3-6-2-4 |
| Installation Data of CCEC QSNT-G3-A Generator Drive Engine | |||
| Dry Weight -Including Flywheel and Generator Excluding other Electrial Component | 3219 lb. /1460 kg | ||
| Wet Weight-Engine Only | 3330 lb. / 1510 kg | ||
| Moment of Inertia of Rotating Components -With FW1010 Flywheel | 118.5 lb.·ft.2 / 4.99 kg·m2 | ||
| Center of Gravity -From Front Face of Block | 22.67 in. / 575.7 mm | ||
| Center of Gravity -From Engine Centerline to Left Side of Engine (As View From Rear of Engine) | 0.51 in. / 12.9 mm | ||
| Center of Gravity -Above Crankshaft Centerline | 6.48 in. / 164.6 mm | ||
| Engine Mounting -Maximum Bending Moment at Rear Face of Block | 1000 lb-ft / 1356 N.m | ||
Engine Performance Data CCEC QSNT-G3-A Generator Engines
| Engine Performance Data 1500 RPM / 50 HZ of CCEC QSNT-G3-A Generator Drive Engine | |||||
| Standby Power | Prime Power | Standby Power | Prime Power | ||
| Governed Engine Speed | 1500 RPM | 1500 RPM | Turbo Comp Outlet Temp | 383 °F / 195 °C | 352 °F / 178 °C |
| Engine Idle Speed | 700 – 800 RPM | 700 – 800 RPM | Exhaust Gas Temperature | 932 °F / 500 °C | 912 °F / 489 °C |
| Gross Engine Power Output | 525 HP / 392 kW | 480 HP / 358 kW | Exhaust Gas Flow | 2222 kg/h | 2062 kg/h |
| Brake Mean Effective Pressure | 325 PSI / 2240 kPa | 297 PSI / 2046 kPa | Heat Rejection to Exhaust | 18425 BTU/min / 324 kW | 16662 BTU/min / 293 kW |
| Friction Power | 42 HP / 31.4 kW | 42 HP / 31.4 kW | Heat Rejection to Ambient | 1080 BTU/min / 19 kW | 1024 BTU/min / 18 kW |
| Intake Air Flow | 1083 ft3/min / 511 L/s | 1004 ft3/min / 474 L/s | Heat Rejection to Fuel | 455 BTU/min / 8 kW | 313 BTU/min / 5.5 kW |
| Charge Air Flow | 78 lb/min / 2140 kg/h | 73 lb/min / 1988 kg/h | Heat Rejection to Exhaust | 8018 BTU/min / 141 kW | 7222 BTU/min / 127 kW |
| Turbo Comp Outlet Pressure | 35 PSI / 242 kPa | 31 PSI / 216 kPa | Heat Rejected to Aftercooler | 4948 BTU/min / 87 kW | 4094 BTU/min / 72 kW |
System Technical Data of CCEC QSNT-G3-A Generator Engines
| System Technical Data of CCEC QSNT-G3-A Generator Engine | ||
| Exhaust System | Maximum Allowable Back Pressure | 3.0 in.Hg / 10 kPa |
| Recommended Exhaust Pipe Diameter | 5.0 in / 127 mm | |
| Air Induction System | Maximum Allowable Intake Air Restriction With Dirty Filter Element | 25 in.H2O / 6.2 kPa |
| Maximum Allowable Intake Air Restriction With Heavy Duty Air Cleaner and Clean Filter Element | 15 in.H2O / 3.7 kPa | |
| Maximum Allowable Intake Air Temperature ΔT | 30 °F / 17 °C | |
| COOLING SYSTEM | Coolant Capacity – Engine Only | 5.5 U.S. gal / 21.0 L |
| Maximum Coolant Friction Head External to Engine | 5 PSI / 34.5 kPa | |
| Maximum Static Head of Coolant Above Engine Crank Centerline | 46 ft. / 14 m | |
| Standard Thermostat (Modulating) Range | 180-202 °F / 82-94 °C | |
| Minimum Allowable Pressure Cap | 10 PSI / 69 kPa | |
| Maximum Top Tank Temperature for Standby Power | 220 °F / 104 °C | |
| Maximum Top Tank Temperature for Prime Power | 212 °F /100 °C | |
| Minimum Top Tank Temperature | 160 °F / 71 °C | |
| Minimum Coolant Expansion Space – % of System Capacity | 6 | |
| Maximum Air Pressure Drop from Turbo Air Outlet to Intake Manifold | 13.5 kPa / 4 in.Hg | |
| Maximum Intake Manifold Temperature @ 77 °F(25 ℃) Ambient | 140 °F / 60 °C | |
| Maximum CAC Outlet delta Temperature at An Ambient of ≥ 25 ℃ (77 °F) | 63 °F / 35 °C | |
| Maximum Intake Manifold Air Temperature Derate/Alarm | 185 °F / 85 °C | |
| Lubrication System | Oil Pressure @ Idle Speed | 15 PSI / 103 kPa |
| Oil Pressure @ Governed Speed | 35-50 PSI / 241-345 kPa | |
| Maximum Allowable Oil Temperature | 250 °F / 121 °C | |
| Oil Pan Capacity – Low | 7.5 U.S. Gal / 28.4 liter | |
| Oil Pan Capacity – High | 9.5 U.S. Gal / 36.0 liter | |
| Total System Capacity | 10.2 U.S. gal / 38.6 L | |
| Angularity of Oil Pan – Front Down/Front Up/Side to Side | 38 ° | |
| Fuel System | Type Injection System | CELECT |
| Maximum Fuel Supply Restriction at Fuel Pump Inlet — With Clean Fuel Filter | 6 in Hg / 20 kPa | |
| Maximum Fuel Supply Restriction at Fuel Pump Inlet — With Dirty Fuel Filter | 10 in Hg / 34 kPa | |
| Maximum Fuel Drain Restriction (Total Head) — With Check Valve | 6.5 in Hg / 22 kPa | |
| Maximum Fuel Drain Restriction (Total Head) — Without Check Valve | 2.5 in Hg / 8.5 kPa | |
| Maximum Supply Fuel Flow @ 1500 RPM | 562 lb/hr / 255 kg/hr | |
| Maximum Return Fuel Flow @ 1500 RPM | 386 lb/hr / 175 kg/hr | |
| Maximum Fuel Inlet Temperature | 160 °F / 71 °C | |
| ELECTRICAL SYSTEM | System Voltage | 24 volt |
| Minimum Recommended Battery Capacity for Engine Only — Cold Cranking Amperes @ Cold Soak at 50 ℉(10 ℃) and Above | 600 CCA | |
| Minimum Recommended Battery Capacity for Engine Only — Cold Cranking Amperes @ Cold Soak at 32 ℉-50 ℉(0 ℃-10 ℃) | 640 CCA | |
| Minimum Recommended Battery Capacity for Engine Only — Cold Cranking Amperes @ Cold Soak at 0 ℉-32 ℉(-18 ℃-0 ℃) | 900 CCA | |
| Minimum Recommended Battery Capacity for Engine Only — Cold Cranking Amperes @ Cold Soak at 0 ℉(-18 ℃-0 ℃) | 320 min | |
| Maximum Starting Circuit Resistance | 0.002 Ohm | |
| Cold Start Capability | Cold Start Capability –Minimum Cranking Speed | 130 RPM |
| Cold Start Capability –Minimum Ambient Temp for Unaided Cold Start | 10.4 °F / -12 °C | |
CCEC QSNT-G3-A Generator Engines Product Advantages
Outstanding Performance
Equipped with the world-leading high-pressure common rail fuel system and fully electronic control modules, the engine achieves exceptional power and transient response through ultra-high fuel injection pressure, optimized vortex and harmonic intake ports, and Cummins’ proprietary high-pressure-ratio efficient turbocharger. It demonstrates enhanced adaptability to altitude, temperature, and load variations.
Features high torque, robust power, rapid transient response, and superior fuel efficiency.
Excellent Durability
The cylinder block and cylinder head are designed with high-strength integration to minimize failure rates, ensuring long-lasting reliability and an outstanding reputation.
The pre-lubrication system, Centriguard centrifugal filter, CENTINEL continuous oil renewal system, and dual-stage Fleetguard combination oil filter extend maintenance intervals while reducing startup failure rates.
High Reliability
Modular integration, compact structure, low failure rates, reduced vibration, and low noise. The engine maintains optimal performance across varying altitudes and load conditions.
Emission Compliance
An optimized combustion chamber design enables the engine to achieve exceptional emission levels without requiring aftertreatment systems. It has been certified under China’s National Stage III Emission Standard for non-road applications.
Convenient Maintenance
The INSITE engine monitoring and diagnostics software, based on the Windows operating system, offers a user-friendly interface and flexibility for rapid fault diagnosis.
A modular design with compact, block-based integration ensures easy disassembly and component reuse. Shared components across the platform enhance parts commonality.
Six-cylinder single-head integrated design with modularized structure ensures compactness. Components are detachable and highly reusable.
