Why This Cummins Generator Matters for Your Busines
Uninterrupted power is the cornerstone of your critical business operations-whether you're keeping factory production lines running, sustaining life-saving hospital equipment, or maintaining productivity at remote mining and communication sites. For enterprises that can't afford grid-related downtime, the 300KW Cummins Generator Set delivers the steadfast power support you need. Built on Cummins' century of power engineering expertise and strict adherence to original component standards, this unit ensures consistent efficiency, low fuel consumption, and reliable performance across primary and backup use cases.
Core Value for Your Operations (Why This Set Is Your Best Choice)
✅ Proven Reliability: Built on Cummins' 100-year engineering legacy, with every core part meeting genuine Cummins standards
✅ Cost-Saving Operation: 5-8% lower fuel consumption than comparable models, cutting your monthly diesel budget significantly
✅ Harsh Environment Durability: Stable performance from -30℃ to 50℃, ideal for remote or extreme worksites
✅ Worry-Free Support: 24/7 emergency hotline and 12-month/1000-hour warranty from our China-based team
Critical Technical Specifications of Cummins 300kW Diesel Generator
|
Category |
Specifics |
|
Diesel Engine Model |
Cummins QSL9-G2 / Dongfeng Cummins 6LTAA8.9-G2 |
|
Unit Power |
Continuous: 270KW; Standby: 300KW |
|
Rated Speed |
1500r/min |
|
Emission Standards |
EPA Tier 3 / China Non-road Stage 3 |
|
Fuel Type |
Light diesel |
|
Rated Frequency |
50Hz |
|
Power Factor |
COSΦ=0.8 (lagging) |
|
Generator Type |
Brushless synchronous generator |
|
Insulation Class |
Class H |
|
Protection Class |
IP23 |
|
Oil Capacity (Engine) |
28L |
|
Fuel Consumption |
205g/kW·h (75% load); 212g/kW·h (rated load) |
|
Unit Dimensions |
3200×1250×1850mm (length×width×height) |
|
Unit Weight |
3200kg |
|
Number of Cylinders |
6 |
|
Cylinder Bore & Stroke |
114×144mm (6LTAA8.9-G2); 115×149mm (QSL9-G2) |
|
Certification |
ISO9001, CE, UL (optional) |
|
Phase/Wiring Mode |
3-phase 4-wire |
|
Origin |
Weifang, China (manufactured to Cummins authorized standards) |
Engineered for heavy daily workloads and large-scale emergency backup, this China-manufactured unit balances long-term operational output with grid-failure readiness. You get 270KW of continuous power-ideal for prolonged high-load tasks like chemical plant operations or auto manufacturing-and 300KW of standby power to keep data centers, airports, and shopping complexes online during outages.
Operating at a steady 1500r/min, it supplies 400V/230V three-phase four-wire power with a 50Hz frequency, 540A current, and 0.8 lagging power factor-compatible with all your high-demand industrial and commercial loads. Its core power comes from either a Dongfeng Cummins 6LTAA8.9-G2 or Cummins QSL9-G2 engine: a 6-inline cylinder, water-cooled, turbocharged, and intercooled system with 8.9L displacement and a 16.0 compression ratio. The direct injection design and 24V quick-start function work reliably in -30℃ low temperatures and high humidity, eliminating power lag when your loads spike suddenly.
The brushless self-excited generator, fitted with an AVR, prevents voltage fluctuations that could damage your high-value equipment, while its Class H insulation (withstanding up to 180℃ heat) and IP23 dust/drip protection ensure durability in your dusty workshops, coastal data centers, or desert worksites. Key factory-verified specs for this China-manufactured unit include:
Fuel consumption: 205g/kW·h at 75% load; 212g/kW·h at rated load
Engine oil capacity: 28L
Unit dimensions: 3200×1250×1850mm (length×width×height)
Unit weight: 3200kg
Emission compliance: EPA Tier 3 / China Non-road Stage 3
Certifications: ISO9001, CE (UL available as an option)
|
Generator Model |
Diesel Generator |
Diesel Engine |
Alternator |
Size |
Weight |
|||
|
Prime Power (KW/KVA) |
Standby Power (KW/KVA) |
Model |
Power |
Model |
Power |
|||
|
KNC20GF |
20/25 |
22/27 |
4B3.9-G11 |
20/23 |
KN-20 |
22/25 |
1600x700x1100 |
700 |
|
KNC24GF |
24/30 |
26/32 |
4BT3.9-G2 |
24/30 |
KN-24 |
24/30 |
1600x700x1100 |
750 |
|
KNC30GF |
30/37 |
33/41 |
4BT3.9-G1 |
36 |
KN-30 |
30/37 |
1600x700x1100 |
800 |
|
KNC40GF |
40/50 |
44/55 |
4BTA3.9-G2 |
50/60 |
KN-40 |
40/50 |
1700x700x1300 |
850 |
|
KNC50GF |
50/62 |
55/68 |
4BTA3.9-G2 |
58/67 |
KN-50 |
50/62 |
1800x750x1300 |
900 |
|
KNC60GF |
60/75 |
66/82 |
4BTA3.9-G11 |
70/80 |
KN-60 |
60/75 |
2300x800x1500 |
1000 |
|
KNC75GF |
75/93 |
82/103 |
4BTA3.9-G13 |
87/97 |
KN-75 |
75/93 |
2300x800x1500 |
1000 |
|
KNC80GF |
80/100 |
88/110 |
6BT5.9-G2 |
86/100 |
KN-80 |
80/100 |
2300x800x1500 |
1000 |
|
KNC100GF |
100/125 |
110/156 |
6BTAA5.9-G2 |
120/132 |
KN-100 |
100/125 |
2500x800x1500 |
1200 |
|
KNC120GF |
120/150 |
132/165 |
6BTAA5.9-G12 |
140/150 |
KN-120 |
120/150 |
2500x800x1500 |
1300 |
|
KNC150GF |
150/187 |
165/206 |
6CTA8.3-G1 |
163 |
KN-150 |
150/187 |
2600x950x1600 |
1800 |
|
KNC200GF |
200/250 |
220/275 |
6CTAA8.3-G9 |
231/263 |
KN-200 |
200/250 |
3000x1000x1600 |
3000 |
|
KNC250GF |
250/312 |
275/343 |
6LTAA9.5-G1 |
280/290 |
KN-250 |
250/312 |
3300x1100x1800 |
3200 |
|
KNC300GF |
300/375 |
330/412 |
6ZTAA13-G3 |
340 |
KN-3300 |
300/375 |
3300x1100x1800 |
3500 |
|
KNC350GF |
350/437 |
385/481 |
6ZTAA13-G2 |
390 |
KN-350 |
350/437 |
3300x1100x1800 |
3500 |
|
KNC400GF |
400/500 |
440/550 |
6ZTAA13-G4 |
400 |
KN-400 |
400/500 |
3500x1400x2000 |
4000 |
|
KNC450GF |
450/562 |
495/618 |
QSZ13-G10 |
463 |
KN-450 |
450/562 |
3500x1400x2000 |
4000 |
|
KNC500GF |
500/625 |
550/687 |
KTAA19-G6A |
610 |
KN-500 |
500/625 |
3700x1800x2000 |
4200 |
|
KNC600GF |
600/750 |
660/825 |
KT83-GA |
647/711 |
KN-600 |
600/750 |
4500x1600x2500 |
7800 |
|
KNC800GF |
800/1000 |
880/1100 |
KTA38-G5 |
880/970 |
KN-800 |
800/1000 |
4500x1900x2500 |
9200 |
|
KNC1000GF |
1000/1250 |
1100/1562 |
KTA50-G3 |
1097/1227 |
KN-1000 |
1000/1250 |
5000x2100x2600 |
10200 |
|
KNC1200GF |
1200/1500 |
1320/1650 |
KTA50-GS8 |
1287/1429 |
KN-1200 |
1200/1500 |
5400x2200x2600 |
10600 |
|
KNC1500GF |
1500/1875 |
1650/2062 |
KTA50-G16A |
1650/1760 |
KN-1500 |
1500/1875 |
5400x2200x2600 |
10600 |
Key Competitive Advantages for Your Business
Harsh Environment Durability
For your operations in extreme locales-from frigid -30℃ mining zones to 50℃ desert facilities, and humid coastal hubs to gritty manufacturing floors-this China-made generator maintains stable performance with minimal upkeep, thanks to its robust insulation and protection ratings. You won't face costly downtime from environmental wear and tear.
Fuel Cost Savings
With 5-8% lower fuel use than comparable models, a facility running the unit 12 hours daily can cut 300–450L of diesel monthly. For your bottom line, this translates to tangible cost reductions, while its efficient combustion system also meets strict emission standards without sacrificing the power you need.
Safe & Easy Operation
The intelligent control panel enables 3-second automatic start/stop for grid backups and supports remote monitoring, so you don't need constant on-site oversight. Built-in safety features trigger auto-shutdown for short circuits, over/undervoltage, overcurrent, or low oil pressure, protecting your connected high-value equipment and reducing your maintenance workload.
Flexible Deployment
It serves as primary power for your mines, chemical plants, and communication base stations, or backup power for municipal emergency hubs and malls. Multiple units can be linked to handle larger loads, such as airport terminals or mass evacuation shelters, adapting to your unique power needs.
Standard Configuration & Custom Upgrades
Every unit ships turnkey-ready with: genuine Cummins engine, brushless synchronous generator, basic intelligent control panel (with status display and fault alerts), full safety protection suite, water-cooling system, 24V startup battery, and complete fuel tank/pump/filter assembly.
For your tailored needs, optional upgrades include:
Unit styles: Open-frame (cost-efficient for your fixed sites), trailer-mounted mobile stations (for your construction sites), container silent units (≤72dB at 10m for urban areas), or super-silent enclosures (≤75dB(A) at 7m for residential-adjacent locations)
Alternative powertrain brands: Weichai, Volvo, Perkins, Stamford, or Leroy Somer (engine/generator swaps available to match your preferences)
Smart systems: ATS (automatic transfer switch), remote control modules, or parallel operation kits for your large-scale load handling
Environment-specific kits: Low-temperature start packages (for -20℃ use) or high-altitude air intake systems (for 2000m+ elevations)
Extras: Extended fuel tanks, oil-water separators, or battery chargers
Not sure which configuration is right for your environment and budget? Most of our clients save time and cost by getting a free system review from our team. [Request a Free System Review]
End-to-End Service Support from a Trusted China Manufacturer
We don't just sell generators-we provide full-cycle power solutions for your business. From initial consultation to on-site support, we handle every detail-ensuring your power solution is not just purchased, but successfully implemented:
Pre-sales: Free consultation to align with your power needs, working conditions, and usage frequency; custom system design with detailed technical documentation
In-sales: Transparent, no-hidden-fee quotes; real-time production updates; damage-proof delivery via moisture-resistant wooden crates (7–15 working days to Qingdao port, with logistics tracking)
After-sales: On-site operation and maintenance training for your team; 12-month/1000-hour warranty (whichever comes first); 24/7 emergency support hotline
Delivery: Simple & Transparent
MOQ: Buy just 1 unit-no need for bulk orders. We're flexible with custom builds, too.
Packaging: Moisture-proof wooden crates + foam cushioning-tough enough for ocean shipping or rough roads.
Timing: We deliver your generator to the port (usually Qingdao) in 7-15 working days. If Qingdao is busy, we'll switch to another port to stay on schedule.
Tracking: We'll send you a logistics link so you can follow your generator from our factory to the port-no more guessing where it is.
Warranty Start: The 12-month/1000-hour warranty begins the day you receive the unit.
About Us: Your Power Solution Partner
Based in Weifang, Shandong, we're a precision technology company specializing in diesel generator sets. We hold titles like "National High-tech Enterprise" and "Industry Leading Solution Provider," and we produce over 20,000 units annually. Every generator goes through strict quality checks at every stage: engine testing, load running, and environmental resistance trials. That's why our failure rate is extremely low, and our generators last over 15,000 hours. We don't just assemble parts-we control quality from start to finish, so you get a generator you can trust.
Certifications: Proof of Quality & Safety
This generator meets global standards-so you know it's safe, reliable, and eco-friendly:
ISO9001: Demonstrates our adherence to strict quality management processes.
CE/UL: Complies with European and American safety standards (UL is optional).
Emissions: Meets EPA Tier 3 and China Non-road Stage 3 requirements-legal worldwide and environmentally friendly.
These certifications aren't just paperwork-they're our promise that you're getting a generator built to last.
Client Testimonial
A Cebu-based Philippine emergency response agency, plagued by 36–60 hour annual grid outages from typhoons, replaced its unreliable 250KWA generator with two of our China-manufactured 300KW Cummins units in early 2024. The agency's logistics lead reported:
"We now power 22 communication devices and a 6-bed mobile ICU in 34℃ heat, with engine temps never exceeding 89℃-no more overheating issues. Daily diesel use dropped from 330L to 215L, saving 3,450L monthly, and the quiet units eliminate complaints from nearby evacuation shelter residents."
During Typhoon Egay in August 2024, the main unit started in 3 seconds, delivering 600KW of parallel power (with backup unit) for 42 hours to keep oxygen machines and medicine fridges running nonstop.
Could your project benefit from similar reliability and savings? Our engineers can design a tailored power solution for you.
FAQ: Answers to Your Top Questions：
Q: Overseas voltage fit
A: This unit is factory-customizable to 480V/60Hz (North America) or 400V/50Hz (Asia/Europe) with no post-delivery modifications needed.
Q: Low-temperature use
A: Pair with optional coolant heaters, -35℃ diesel/oil, and insulated fuel pipes for reliable -20℃ operation at your cold-climate worksites.
Q: Component lifespan
A: The turbocharger lasts 8,000-10,000 hours with regular oil changes. The AVR lasts 12,000-15,000 hours. We recommend using genuine Cummins parts for replacements-our local after-sales partners stock them, so you can get what you need quickly.
Q: Continuous runtime
A: 72 hours at 75% load, with a 1–2 hour cooldown recommended to extend unit life and protect your investment.
Have more specific questions about compatibility, site requirements, or pricing? Speak directly with our power experts today.
For your business requiring a fail-safe power backbone, the 300KW Cummins Generator Set combines proven Cummins engineering, factory-controlled quality, and tailored support to keep your critical operations running through any disruption. Don't let power outages derail your productivity-lock in your reliable power solution now.