Reliable diesel power built for serious backup and standby applications.
The 15kW Isuzu Diesel Generator from ASE Power delivers dependable standby or prime power for residential, commercial, agricultural, and light industrial use. Built around the proven Isuzu 4JB1 diesel engine, paired with a Stamford alternator, and controlled by the Deep Sea Electronics DSE6110 MKIII, this generator is designed for buyers who need reliable performance, manageable noise levels, and long-term durability.
If you are looking for a quiet enclosed diesel generator with flexible voltage options, efficient fuel consumption, and a professional-grade control system, this unit gives you a practical solution for backup power, remote power, pump systems, farms, small businesses, and essential equipment protection.
Key Features
- 15kW / 20kVA output for dependable standby or prime power applications.
- Isuzu 4JB1 diesel engine for proven reliability, fuel efficiency, and long service life.
- Stamford S0L2-G1 alternator for stable voltage delivery and dependable electrical performance.
- DSE6110 MKIII controller for professional monitoring, protection, and generator control.
- Quiet enclosed design operating at approximately 69 dB at 7 meters.
- Single-phase and three-phase voltage options to match a wide range of site requirements.
- 38-gallon standard fuel tank with 105-gallon optional tank for longer runtime.
- Weather-protective enclosure designed for outdoor installation and dependable everyday use.
Why This 15kW Diesel Generator Stands Out
Buyers shopping for a 15kW diesel generator usually want answers to the same core questions: Is it reliable? Is it quiet enough? Does it have the right voltage? Will it run long enough? Is it built with quality components? This generator answers those questions with a proven Isuzu diesel platform, a trusted Stamford alternator, a professional Deep Sea controller, and multiple configuration options to support real-world applications.
For customers comparing generator options, the biggest value here is not just the power rating. It is the combination of commercial-grade components, quiet enclosed operation, fuel-efficient diesel performance, and installation flexibility that makes this generator a strong choice for both backup and continuous-use needs.
Technical Specifications
| Rated Power Output | 15 kW / 20 kVA |
| Engine | Isuzu 4JB1 Diesel Engine |
| Alternator | Stamford S0L2-G1 |
| Controller | Deep Sea Electronics DSE6110 MKIII |
| Frequency | 60 Hz |
| Engine Speed | 1800 RPM |
| Voltage Options | 120/240V • 120/208V • 277/480V |
| Phase Options | Single Phase or Three Phase |
| Noise Level | 69 dB @ 7 meters |
| Fuel Tank | 38 gallon standard / 105 gallon optional |
| Dimensions | 71" × 41" × 50" |
| Weight | Approx. 1,700 lbs |
Fuel Consumption & Estimated Runtime
| Load | Fuel Use | 38 Gallon Tank | 105 Gallon Tank |
|---|---|---|---|
| 25% | 0.45 gal/hr | 84 hrs | 233 hrs |
| 50% | 0.70 gal/hr | 54 hrs | 150 hrs |
| 75% | 1.0 gal/hr | 38 hrs | 105 hrs |
| 100% | 1.2 gal/hr | 31 hrs | 87 hrs |
What Can a 15kW Diesel Generator Power?
A 15kW generator is often a strong fit for backup power on homes, small businesses, agricultural systems, pump equipment, gates, controls, refrigeration support, and other essential loads. Actual capacity depends on your voltage, phase, startup surge requirements, and which loads need to run at the same time.
If you are unsure whether this generator is the right size, ASE Power can help confirm the right setup based on your site requirements, voltage, and application. That helps avoid undersizing, overspending, or selecting the wrong configuration.
Common Applications
- Residential backup power during outages
- Small business standby power
- Farm and agricultural operations
- Pump stations and irrigation systems
- Remote sites and construction support
- Commercial equipment and essential system backup
Why Buy From ASE Power?
ASE Power focuses on dependable power equipment for buyers who need straight answers, practical guidance, and commercial-grade solutions. We help customers select the right voltage, phase, fuel tank option, and generator configuration based on the actual application, not guesswork.
Whether you are buying for a home, business, farm, municipality, contractor project, or remote site, our goal is to help you source the right generator with confidence.
Frequently Asked Questions
Is this generator single phase or three phase?
This generator can be configured for either single-phase or three-phase electrical systems depending on your voltage requirements.
Is this a quiet diesel generator?
Yes. The enclosed generator operates at approximately 69 dB at 7 meters, making it much quieter than open-frame diesel generators.
What engine does this 15kW diesel generator use?
This unit uses the reliable Isuzu 4JB1 diesel engine, known for durability, serviceability, and efficient performance.
What alternator comes with this generator?
This model is equipped with a Stamford S0L2-G1 alternator for stable and dependable power generation.
What controller does the generator use?
It includes a Deep Sea Electronics DSE6110 MKIII controller for monitoring, protection, and control.
Can I get longer runtime?
Yes. The generator includes a 38-gallon standard tank, and a 105-gallon optional fuel tank is available for extended runtime.
Is this generator good for backup power?
Yes. This generator is a strong option for backup power where reliability, quiet operation, and diesel efficiency are important.
How do I know if this is the right generator size?
Generator sizing depends on total load, startup surge, voltage, and phase requirements. If you need help, ASE Power can help confirm the right generator for your application.