Key Features of the 400 kW Cummins Natural Gas Generator
Rated Power Output: Approx. 400 kW (or roughly 500 kVA at 0.8 PF) depending on configuration.
Fuel Type – Natural Gas: Cleaner combustion vs. diesel, enabling lower NOₓ, CO₂ and particulate emissions, and often lower operational fuel cost.
Engine Brand – Cummins: Globally recognised for reliability, wide service network and performance in heavy‑duty power generation.
Industrial‑Grade Alternator & Control System: Designed for heavy-load conditions, dynamic response, and robust protection features.
Flexible Voltage / Frequency Options: Suitable for 50 Hz or 60 Hz systems and multiple voltage levels to match regional grid or site requirements.
Durable Skid / Open / Enclosed Options: Depending on site requirements, the unit can be supplied in open frame, containerised or sound‑attenuated enclosure format.
Low Lifecycle Cost: Natural gas fuel combined with Cummins engine efficiency leads to lower fuel consumption and longer service intervals.
Environmental Compliance & Future‑Proofing: With natural gas fuel and Cummins engine technology, this set is well positioned for stringent emissions and sustainability goals.

Applications of the 400 kW Cummins Natural Gas Generator
Industrial Facilities & Manufacturing Plants: Provide reliable main or backup power for production lines, motors and process equipment.
Commercial Buildings & Data Centres: Critical infrastructure requiring high uptime, rapid load pickup, and efficient fuel use.
Utility Support & Grid Backup: Can operate as standby power for utilities, pumping stations, telecom sites or as part of a micro‑grid.
Remote / Off‑Grid Installations: Where natural gas is available (or LNG/CNG) and transport of diesel is costly.
Green Transition Power Solutions: For companies shifting toward lower‑carbon energy sources, a natural‑gas genset serves as a transitional solution while integrating renewables.
Product parameters:
AC Alternator data | Gas engine data |
Generator Brand | Mecca | Engine Brand | Cummins |
Motor Model | ECO40 3S4C | Engine Model | K19-G4 |
Rated Voltage(V) | 400 | Engine type | Inline-6-Turbo |
Rated Power(H class)kW | 400 | Cylinder Bore x Stroke(mm) | 159mm×159mm |
Rated Capacity(H class)kVA | 500 | Displacement (L) | 18.9 |
Motor efficiency (%)/(400V) | 94.8 | Compression ratio | 11.5 |
Power factor | 0.8 | Rated output power (single) | 388kW-1500rpm/1800rpm |
Connection Methods | D/Y | Maximum lubricant consumption (g/kW.h) | <0.3 |
Rotor insulation class | H class | Minimum air intake (kg/h) | 1460 |
Rated temperature rise | H class | Ignition method | Electronically controlled single-cylinder independent high-energy ignition |
Excitation method | Brush-less | Fuel Control Method | Equivalent combustion, closed loop control |
Rotation speed (min- 1) | 1500/1800 | Debugging method | Electronic commissioning |
Shell protection grade | IP23 |
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Why Choose Cummins Gas Generator Solutions?
Powerful Brand Reputation: Cummins is globally renowned for its decades of expertise in the power generation and gas engine sectors, supported by an extensive, high-quality worldwide service network.
Superior Gas Technology Advantage: Utilizing natural gas as fuel significantly reduces the system's carbon emissions and fuel costs, while also lowering maintenance frequency compared to traditional diesel alternatives.
Strong Adaptability and Configuration Flexibility: Solutions can be highly customized, ranging from open-frame sets to fully containerized, soundproof enclosures, meeting diverse site requirements.
High Long-Term Reliability: Provides industrial and commercial customers with the assured capability and support for continuous operation and long-term performance stability.
Excellent Green Transition Support: As the industry shifts toward low-carbon and sustainable practices, Cummins natural gas power solutions offer a reliable and robust transitional choice for environmentally conscious energy generation.
Remarks
1.Engine Control System: ECI (American brand);
2.Throttle: Bosch (German brand);
3.Spark plug: NGK(Japanese brand);
4.Generator master controller: Comap (Czech brand); DEIF(Danish brand); DSE(England brnad);
5.Altermator: Mecca (Italian brand); Stamford (American brand); Leroy Somer (French brand);
6.Starting mode: electric start;
7.Overhaul period: 36000h~60000h;
8.Generator type: pure copper brushless, automatic voltage regulation;
9.Operation mode: grid-connected/parallel/isolated/automatic control, etc;
Ready to upgrade your power infrastructure?
Contact us now to obtain full specification, configuration options, pricing and service support for the 400 kW Cummins Natural Gas Generator Power Plant / Genset. Our engineering team will assist you in designing the optimal solution tailored to your operational, environmental and financial requirements.