400kW 500KVA Weichai Open Generator Set Silent Frame Generator High Quality Power Silent Diesel Electric Engine Generator Price
The BOBIG 400kW 500KVA Weichai diesel generator delivers dependable, high-output power for industrial, commercial, and residential applications. Built around the renowned Weichai WP13D490E310 engine, this generator set combines advanced engineering, fuel efficiency, and long-term durability to meet demanding power requirements.
- Rated Power: 400kW (500KVA) prime power output, with a standby rating of 440kW (550KVA), suitable for continuous heavy-load operation across industrial, commercial, and residential sectors.
- Frequency: 50Hz standard frequency, compatible with most electrical equipment and machinery worldwide.
- Voltage: 400/230V rated voltage, customizable according to customer requirements.
- Phase & Power Factor: 3-phase output with 0.8 power factor.
- Engine Model: WP13D490E310 by Weichai — known for high torque, fuel efficiency, and low emissions.
- Engine Speed: 1500 RPM for smooth, consistent power delivery and reduced component wear.
- Configuration: 6-cylinder in-line, turbocharged and aftercooled, 12.54L displacement.
- Governor Type: Mechanical pump for reliable speed control.
- Cooling System: Forced water cooling cycle.
| Parameter | Prime Power | Standby Power |
|---|---|---|
| Rated Power (kVA) | 500 | 550 |
| Power Rating (kW) | 400 | 440 |
| Frequency (Hz) | 50 | |
| Engine Model | WP13D490E310 | |
| Engine Speed (RPM) | 1500 | |
| Phase | 3 | |
| PF | 0.8 | |
| Control System | Digital | |
| Rated Voltage (V) | 400/230 (According to customer requirements) | |
| Fuel Tank Capacity Operating Time | ≥ 8h @ 75% load | |
PRP: Prime power is available for an unlimited number of annual hours in variable load application, in accordance with GB/T2820-97. A 10% overload capability is available for a period of 1 hour within a 12-hour operation cycle.
ESP: The standby power rating is applicable for supplying emergency power for the duration of a utility power interruption. No overload, utility parallel, or negotiated outage operation capability is available at this rating.
| Number of Cylinders | 6 |
| Cylinder Arrangement | In-line |
| Cycle | L-Type |
| Aspiration | Turbocharged and aftercooled |
| Bore x Stroke | 127 x 165 mm |
| Cubic Capacity | 12.54 L |
| Compression Ratio | 15.0:1 |
| Prime Power / Speed | 440 kW / 1500 rpm |
| Standby Power / Speed | 489 kW / 1500 rpm |
| Governor Type | Mechanical pump |
| Cooling System | Force Water Cooling Cycle |
| Total Lubrication System Capacity | 30 L |
| Coolant Capacity (Engine Only) | 25 L |
| Fuel Consumption (100% load) | 450 g/kWh @ 1500 rpm |
| Starter Motor | DC 24V |
| Charge Alternator | DC 24V |
| Alternator Brand | BOBIG |
| Alternator Manufacturer | FUJIAN BOBIG ELECTRIC MACHINERY CO., LTD |
| Alternator Model | BW-354D |
| Alternator Rated Power | 400kW / 500kVA |
| Rated Voltage | 230V / 400V |
| Rated Frequency | 50Hz |
| Connecting Type | 3 Phase, 4 Wire |
| Number of Bearings | 1 |
| Protection Grade | IP23 |
| Altitude | ≤ 1000m |
| Exciter Type | Brushless, self-exciting, AVR automatic voltage regulating, 100% copper |
| Insulation Class | H class |
| Telephone Influence Factor (TIF) | ≤ 50 |
| THF | ≤ 2% |
| Voltage Regulation, Steady State | ≤ ±1% |
| Transient State Voltage | ≤ -15% ~ +20% |
| Model | Open Type (BWC550) | Silent Type (BWC550S) |
|---|---|---|
| Length (L) mm | 3600 | 4300 |
| Width (W) mm | 1500 | 1400 |
| Height (H) mm | 2460 | 2200 |
| Tank Capacity (L) | 0 | 0 |
This generator complies with multiple international and national standards, including ISO 8528-5:2018, GB/T2820.5-2009, and CE, guaranteeing quality, safety, and reliability.
- Ambient Temperature: Operates effectively from +5°C to +40°C.
- Altitude: Suitable for use at altitudes up to 1000m. Customized solutions are available for different environmental conditions.
This 400kW diesel generator is ideal for a variety of power supply scenarios:
- Industrial Use: Backup power source for factories, ensuring continuous production during power outages.
- Commercial Buildings: Office buildings, shopping malls, and hotels rely on it to maintain essential services such as lighting, elevators, and security systems.
- Residential Areas: Reliable power for residential communities, especially in areas with unstable power grids.
Products are packed in plywood cases for safe transport. Delivery time is typically 10–15 working days after receiving the customer's deposit.
We are an electrical machinery manufacturer integrating technological research, production, and sales. Our factory covers a total area of 10,000 square meters, including a 1,000 sqm standard construction area. We employ 160 people, among whom 20 are technicians.
Our main products include gasoline generators, diesel generators (5–2000kVA), gas generators, pumps, and more. With advanced techniques and equipment, rich experience, reliable quality, considerate service, and strong teamwork, we have earned a solid reputation in the global market.
Adhering to the philosophy of "Quality, Creation, Service, and Development," we continuously update technology, improve quality, and provide better service. We utilize advanced testing equipment including CAD systems, auto assembling & winding & inserting equipment, vacuum dipping systems, and digital testing equipment. Our company has obtained ISO9000 Quality System Certification. We warmly welcome sincere cooperation from partners worldwide.
BOBIG products carry a guarantee of one year or 1000 hours, whichever comes first from the ex-factory date. During the guarantee period, we provide free replacement of easily damaged spare parts caused by production quality or raw material defects. After expiration, we provide cost-price spare parts maintenance.
Our professional after-sales service team is available 24/7 to provide technical support, maintenance, and repair services to ensure your peace of mind.
- Brand Reputation: Weichai is a well-known and trusted brand in the diesel generator industry, with a long history of producing high-quality products.
- Quality Assurance: Our products are manufactured in strict accordance with international standards, and each generator undergoes rigorous quality inspections before leaving the factory.
- Customization Options: We understand that different customers have different needs. Our team can provide customized solutions based on your specific requirements.
Our MOQ is only 1 set. Payment method is usually 30% T/T as deposit, 70% balance T/T before delivery. Alternatively, 100% L/C, Trade Assurance, PayPal, or Western Union are accepted. Delivery period is normally 10–15 working days after receiving the customer's deposit.
Fuzhou Port, Fujian Province, or as per customer request.
We can provide regular engine air filters, water filters, fuel filters, and oil filters to customers for self-maintenance.
Yes, we can offer parts at any time, not limited to the warranty period. Usually parts can be sent out within 3–5 days.
Yes, they can be customized according to your specific needs.
We welcome everyone to join us and distribute our products worldwide. We can issue authority certificates and sign agreements with you accordingly.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.