Cummins NTA Series 300kVA Diesel Generator for Commercial Complexes & Office Building Backup
| Engine: | Cummins | Fuel Type: | Diesel |
| Coolingsystem: | Radiator Cooled | Cooling System: | 40℃ Standard Water Cooling Cycle |
| Cerificate: | ISO9001/ CE | Rated Voltage: | 400V/230V |
| Starting Method: | DC 24V DC Start | Oil Supply Method: | Direct Injection |
| Debugging Method: | Electronic Speed Regulation | Air intake Method: | Turbocharged Intercooler |
| High Light: | Commercial 300kVA Diesel Generator,Commercial Diesel Generator 300kVA,Commercial Emergency Backup Generator |
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Cummins NTA Series 300kVA Diesel Generator for Commercial Complexes & Office Building Backup
Product Overview
WOPUSAI Cummins NTA series 300kVA open-type diesel genset is equipped with authentic Cummins NTA855-G1A heavy-duty engine, paired with TFW all-copper brushless alternator. Optimized fuel injection and turbocharging system delivers better fuel economy under medium continuous load. This model balances power capacity and operation cost, widely adopted for standby and prime power for medium industrial workshops, water treatment plants and logistics parks.
Product Showcase
Complete open‑frame genset assembly, Cummins NTA series diesel engine unit, TFW brush‑less all‑copper alternator, industrial control cabinet, full set of pipeline components and heavy-duty high-capacity water radiator.

Key Specifications
250kVA-440kVA NTA series Cummins open frame unit |
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| Rated power | 200KW/250kVA | 250KW/313kVA | 275KW/345kVA | 310KW/388kVA | 330KW/413kVA | 330KW/413kVA | 350KW/438kVA |
| Rated current | 396A | 450A | 495A | 558A | 594A | 594A | 630A |
| Rated voltage | 400V/230V | ||||||
| Rated frequency | 50Hz | ||||||
| Rated speed | 1500rpm | ||||||
| Fuel consumption | 250g/KW.h | ||||||
| Dimensions | 3200*1100*1750mm | ||||||
| Unit weight | 2200KG | 2500KG | 2800KG | 3000KG | 3200KG | 3300KG | 3500KG |
| Noise index | 110dB | ||||||
| Model | NTA855-GA | NTA855-G1A | NTA855-G1B | NTA855-G2A | NTA855-G4 | NTAA855-G7 | NTAA855-G7A |
| Number of cylinders | 6L | ||||||
| Bore stroke | 140*152mm | ||||||
| Exhaust volume | 14L | ||||||
| Starting method | DC 24V DC start | ||||||
| Cooling method | 40℃ standard water cooling cycle | ||||||
| Oil supply method | Direct injection | ||||||
| Debugging method | Electronic speed regulation | ||||||
| Air intake method | Turbocharging | ||||||
| Generator configuration | Brushless all copper | ||||||
| Brand/Model | TFW-220 | TFW-250 | TFW-275 | TFW-310 | TFW-330 | TFW-330 | TFW-350 |
| Rated power | 200KW/250kVA | 250KW/313kVA | 275KW/345kVA | 310KW/388kVA | 330KW/413kVA | 330KW/413kVA | 350KW/438kVA |
| Insulation level | H | ||||||
| Protection level | IP 23 | ||||||
| Wiring method | Star connection | ||||||
| Adjustment method | AVR automatic voltage regulation | ||||||
| Power Factor | 0.8 lag | ||||||
Core Advantages
✅ Cummins NTA classic 6-cylinder engine, turbocharged & intercooled, strong power reserve
✅ TFW brushless alternator with H insulation grade, IP23 protection, resist dust and moisture interference
✅ Electronic speed regulation system, fast response to sudden load change, low voltage drop
✅ Heavy-duty water cooling radiator, stable temperature control during long-time continuous operation
✅ Standard shock absorber base, effectively isolate vibration, protect peripheral equipment
🎯 Application Scenarios
- Logistics warehouse & distribution center emergency power
- Water treatment plant, pumping station main power supply
- Medium factory workshop continuous standby power
- Hotel, hospital backup power for critical equipment
⚙️ Optional & Customization
Soundproof canopy, ATS auto switch, parallel control, remote cloud monitoring, extended base fuel tank, oil-water separator upgrade.
📦 Packaging Standards
Steel frame packaging with moisture-proof wrapping, spare parts and operation handbook included.
🚛 Shipping & Delivery
Multiple transport solutions. Pre-shipment full load test report can be provided.
🏢 Brand Introduction
WOPUSAI Mechanical and Electrical specializes in generator set assembly and power solution design. All units pass strict load testing before shipment, offering worldwide after-sales guidance and spare parts supply.
