Standard Warranty
1 year or 1000 hours
Prime 250kVA, standby 285kVA silent genset powered by Cummins 6LTAA8.9-G2 engine, 50Hz, 3-phase 400V, PF0.8, ISO8528 compliant. Inline 6-cylinder turbo aftercooled engine connects with IP23 H-class brushless alternator. Soundproof canopy with built-in cooling and shock-absorbing structure, dustproof, rainproof and low noise for regular & backup power of real estate, malls and medium-small factories.
When MEP consultants draft backup power specifications for Grade A commercial complexes, hospitals, or data centre facilities, the generator section typically requires witnessed load acceptance tests, voltage tolerance certificates, and full-documentation handover packages. The JIUAN Power 285KVA Cummins diesel generator — Model CDC285KVA, powered by the genuine Cummins 6LTAA8.9-G2 engine — is built to qualify at each stage of that project lifecycle. Rated at 250KVA prime (200KW) and 285KVA standby (228KW), this 250KVA silent Cummins genset delivers ISO 8528-compliant performance with ±1% voltage regulation and total harmonic distortion below 3%, meeting the power quality acceptance window for environments where VFDs, BMS controllers, and medical imaging equipment share a common distribution bus.
The Cummins 6LTAA8.9-G2 engine powering this soundproof diesel generator is produced at DCEC Dongfeng Cummins' ISO 9001-certified plant, each unit carrying a unique ESN factory serial number traceable through JIUAN Power's delivery documentation. The inline six-cylinder configuration — bore 114mm × stroke 145mm, displacement 8.9L, compression ratio 16.6:1 — pairs a Holset turbocharger with an air-to-air aftercooler and the Bosch P7100 high-pressure mechanical injection pump, achieving a full-load BSFC of 205 g/kW·h. The Cummins 6LTAA8.9-G2 accepts staged loads from 0% to 110% of prime rating without frequency excursion, satisfying the stepped-load commissioning protocol in commercial project specifications. Cold-start is rated to -12°C unaided; an optional jacket water heater extends reliable ignition to -28°C.
The sealed canopy around this 285KVA Cummins diesel generator is fabricated from ≥2.0mm cold-rolled steel panels, finished with 120°C-rated electrostatic powder coating, and lined with 40 kg/m³ rock wool acoustic insulation. Sound pressure measured at 7 metres stays within 65–68 dB(A), meeting urban commercial-zone ordinance limits for outdoor rooftop and basement plant-room installation without supplementary acoustic treatment. The integrated base fuel tank supports over 7.5 hours of continuous full-load runtime, and dual-side maintenance doors reduce routine service intervals to under 30 minutes. JIUAN Power fits the DSE7320 intelligent controller as standard on every 250KVA silent Cummins genset, providing real-time monitoring of voltage, current, frequency, oil pressure, coolant temperature, and runtime hours — with a reserved ATS installation bay for unattended mains-generator transfer within 3–6 seconds.
For procurement teams where the 285KVA Cummins diesel generator must be included in formal contract documentation, JIUAN Power issues a PICC-underwritten 5-year warranty certificate with each unit, registering coverage scope and the engine ESN serial number for asset-register submission and O&M handover packs. Each CDC285KVA ships with a 5-language user manual — English, Arabic, French, Spanish, Portuguese — enabling multinational EPC project teams to service units across regions without specialist support. Critical Cummins replacement parts are dispatched by air freight within 3–5 business days. Optional C5-M corrosion-protection coating meets ISO 12944 for coastal construction environments; cold-weather kits — jacket water heaters, battery blankets, and arctic-grade lubricant packages — cover installations above 50° latitude. Canopy steel panel thickness is verified by vernier caliper before despatch, reinforcing the 5-year warranty commitment with documented quality records.

Parameter |
Value |
Model |
CDC285KVA |
Prime Power |
200KW / 250KVA |
Standby Power |
228KW / 285KVA |
Frequency / Speed |
50Hz / 1500rpm; 60Hz / 1800rpm |
Phase / Wires |
3-phase, 4-wire |
Power Factor |
0.8 lagging |
Engine Model |
Cummins 6LTAA8.9-G2 |
Cylinders |
Inline 6-cylinder |
Bore × Stroke |
114 × 145mm |
Compression Ratio |
16.6:1 |
Cooling Method |
Water-cooled |
Starting Method |
24V DC electric start |
Alternator |
Stamford / Leroy-Somer / Tooplinks |
Voltage |
415/240V, 400/230V, 380/220V |
Insulation Class |
Class H |
Protection Rating |
IP23 standard; IP55 optional |
Noise Level |
65–68 dB(A) @ 7m |
Dimensions (L×W×H) |
3600 × 1350 × 2000mm |
Weight |
2800 kg |
Optional |
ATS auto transfer system; C5-M coating; cold-weather kit |

The Cummins 6LTAA8.9-G2 engine in this 285KVA Cummins diesel generator is tested against ISO 8528 standards at the DCEC manufacturing plant before despatch. Staged load progression from 0% to 110% prime rating confirms voltage stability within ±3% and frequency within ±1% — the acceptance tolerance most project engineers specify for generator commissioning sign-off. At 205 g/kW·h BSFC and a 16,000-hour overhaul interval, operating economics remain competitive across the building's planned maintenance schedule.
Every CDC285KVA carries a PICC insurance-underwritten 5-year warranty recording the Cummins engine serial number and full coverage scope — a document acceptable to client asset management systems and O&M facilities managers during project completion. JIUAN Power generates a paired ESN record at despatch, enabling the soundproof diesel generator to be tracked from first operation. Critical spares reach any major international port within 3–5 business days through JIUAN Power's authorised Cummins parts network, supported by a 5-language technical manual covering installation, commissioning, and first-year scheduled maintenance.
The Stamford or Leroy-Somer Class H brushless synchronous alternator in this 250KVA silent Cummins genset — IP23-rated, vacuum-impregnated all-copper windings — holds steady-state voltage regulation within ±1% and total harmonic distortion below 3% across all load transitions. These measured parameters satisfy the power quality acceptance criteria for UPS bypass commissioning tests, hospital radiology equipment, precision building automation controllers, and server room infrastructure. JIUAN Power documents each 285KVA Cummins diesel generator's factory power quality test results in the technical data pack supplied with every unit.
The CDC285KVA 285KVA Cummins diesel generator serves as standby backup power for Grade A commercial towers, hospital auxiliary distribution boards, hotel plant rooms, pharmaceutical cold-chain warehouses, and data centre UPS bypass circuits. The 250KVA prime rating also supports EPC construction-phase site power across the Middle East, West Africa, and Southeast Asia — transitioning to standby duty once permanent building services are energised.
FAQ
Q: Does this 285KVA Cummins diesel generator comply with urban commercial-zone noise regulations?
A: Yes. The soundproof diesel generator canopy produces 65–68 dB(A) at 7 metres — within the limits set for commercial and residential zones in most national environmental standards. JIUAN Power provides a canopy noise test certificate with every order to support project approval submissions.
Q: Can the DSE7320 controller in this 250KVA silent Cummins genset integrate with a building BMS or SCADA system?
A: Yes. The DSE7320 supports dry-contact relay outputs and RS485 Modbus communication, enabling most modern BMS and SCADA platforms to query generator status, fault alarms, and runtime data in real time without additional protocol converters.
Prime 250kVA, standby 285kVA silent genset powered by Cummins 6LTAA8.9-G2 engine, 50Hz, 3-phase 400V, PF0.8, ISO8528 compliant. Inline 6-cylinder turbo aftercooled engine connects with IP23 H-class brushless alternator. Soundproof canopy with built-in cooling and shock-absorbing structure, dustproof, rainproof and low noise for regular & backup power of real estate, malls and medium-small factories.
1 year or 1000 hours
Up to 3 years for Perkins engines;
2 years for Stamford S-series alternators
Professional technical support and spare parts supply network
What every JIUAN generator set delivers — before and after it reaches your site.
Up to 2 years or 2,000 hours of full-unit warranty (whichever comes first), underwritten in cooperation with PICC — giving overseas buyers confidence in every unit.
Guaranteed expedited air shipping — core warranty components arrive worldwide in just 3 to 5 days, keeping your downtime to an absolute minimum.
Soundproof canopies use cold-rolled steel, high-gloss powder coating and flame-retardant insulation for outstanding rust, scratch and noise resistance.
Every unit is brand new with a unique, traceable ESN. Each generator is run through staged full-load and overload tests before shipment.
Configurations for frigid regions, coastal climates and demanding worksites include tailored heating, protection and anti-corrosion solutions.
One-stop customs clearance certificate support and processing helps smooth the path from our factory to your port.
Custom gensets: silent, explosion-proof, custom voltage
Full project tech support & remote monitoring
Track record: data centers, mines, ports, infrastructure
24/7 Genset Service Hotline: +86 18818906850
Add: No.1 Dongxing Xiang, Tanbu Town, Huadu, Guangzhou, China
Fast & reliable response always guaranteed.