1000kW / 1250kVA Cummins Series Diesel Generator Set
This series is available in 50Hz and 60Hz configurations, with open type and 20-foot containerized enclosure options. It can be configured with ATS, remote monitoring, synchronizing system and other project-specific accessories according to site requirements.
- 1000kW / 1250kVA class diesel generator set for large-capacity standby and project power requirements.
- Available in 50Hz and 60Hz configurations to match different regional power standards.
- Integrated genset design including engine, alternator, chassis, control box, protection system and exhaust accessories.
- Open type and 20-foot containerized enclosure options for different installation environments.
- Standard factory load testing at 0%, 25%, 50%, 75%, 100% and 110% before delivery.
- Optional ATS panel, synchronizing system, RS485 / Ethernet communication and cloud monitoring.
- Suitable for data centers, factories, mining sites, oilfield projects, infrastructure and emergency backup power.
Model Options
| Model | Frequency | Prime Power | Standby Power | Rated Voltage | Rated Speed | Engine Matching | Configuration |
| SC1250 | 50Hz | N/A | 1000kW / 1250kVA | 380 / 400 / 415V | 1500 r/min | Cummins KTA38-G9 | Open type / 20ft container |
| SC1250 | 50Hz | 908kW / 1135kVA | 1000kW / 1250kVA | 380 / 400 / 415V | 1500 r/min | Cummins QSK38-G2 | Open type / 20ft container |
| SC1250X | 60Hz | 910kW / 1138kVA | 1000kW / 1250kVA* | 440V / 254V | 1800 r/min | Cummins KTA38-G4 | Open type / 20ft container |
* Internal note: one English technical file shows standby power as 1100kW / 1250kVA for the SC1250X 60Hz version. Please confirm the final standby power value with the technical department before publishing.
Main Technical Specifications
| Item | SC1250 50Hz – KTA38-G9 | SC1250 50Hz – QSK38-G2 | SC1250X 60Hz – KTA38-G4 |
| Frequency | 50Hz | 50Hz | 60Hz |
| Rated Speed | 1500 r/min | 1500 r/min | 1800 r/min |
| Power Factor | 0.8 | 0.8 | 0.8 |
| Rated Voltage | 380 / 400 / 415V | 380 / 400 / 415V | 440V / 254V |
| Open Type Size | 4500 x 2060 x 2165 mm | 4660 x 2090 x 2320 mm | 4400 x 1760 x 2275 mm |
| Open Type Weight | 8255 kg | 7700 kg | 7000 kg |
| 20ft Container Weight | 12650 kg | 12200 kg | 11000 kg |
| Operating Temperature | ≤40°C | ≤40°C | ≤40°C |
| Altitude | ≤1000 m | ≤1000 m | ≤1000 m |
| Relative Humidity | ≤60% | ≤60% | ≤60% |
Alternator and Electrical Output
The generator set is matched with a three-phase alternator and configured for stable output under industrial and standby power conditions.
| Item | 50Hz Configuration | 60Hz Configuration |
| Rated Voltage | 380 / 400 / 415V | 440V / 254V |
| Rated Frequency | 50Hz | 60Hz |
| Phase | 3-phase | 3-phase |
| Power Factor | 0.8 | 0.8 |
| Insulation Class | H | H |
| Temperature Rise Class | H | H |
| Protection Class | IP23 | IP23 |
| Waveform Distortion | <5% | <5% |
| Telephone Harmonic Factor | <2% | <2% |
Engine Matching
This product page only lists engine matching information at system level. Detailed engine data such as bore, stroke, displacement, oil pressure and other component-level parameters are not recommended for the public product page, because SWT provides complete generator set integration rather than manufacturing the engine itself.
| Genset Version | Engine Matching | Public Page Recommendation |
| SC1250 50Hz | Cummins KTA38-G9 | Mention as engine matching option only. |
| SC1250 50Hz | Cummins QSK38-G2 | Mention as engine matching option only. |
| SC1250X 60Hz | Cummins KTA38-G4 | Mention as engine matching option only. |
Suggested wording for the website:
“Powered by a Cummins engine and integrated by SWT, the generator set is engineered for stable output, reliable control and flexible project configuration.”
Control System
The SWT standard control system is designed for single-unit operation and protection, with optional communication functions for remote monitoring and project integration.
- LCD screen with key operation.
- Multilingual display interface.
- Control and protection functions for the generator set.
- Engine and alternator parameter monitoring.
- Local and remote start functions.
- Event logs for operation review and fault tracing.
- Multiple communication interfaces available.
- Overall protection level up to IP65 depending on configuration.
ATS Optional
An ATS panel can be supplied as an optional accessory for automatic transfer between mains power and generator power. The ATS controller integrates measurement, display and control functions, and is suitable for mains-to-mains or mains-to-generator applications.
- Digital microcomputer control.
- LCD display for ATS operating status and controller mode.
- Voltage and frequency measurement.
- Fast on-load switching between two power sources, with switching time up to ≤80ms depending on configuration.
- Electrical and mechanical interlock design to prevent short circuit between two power sources.
SWT Synchronizing System Optional
For multi-unit power projects, SWT can provide a synchronizing system for genset-to-genset or genset-to-grid operation. The system can automatically start units, synchronize operation and adjust the number of running units according to load demand.
- Supports automatic synchronizing of up to 32 generator sets.
- Suitable for genset-to-genset, genset-to-grid and paralleling with ATS applications.
- Can reduce inefficient operation of high-power units under low load conditions.
- Supports future capacity expansion by adding additional generator sets.
- PLC system, touchscreen and customized control logic are available according to project requirements.
Applications
- Data center backup power
- Industrial plant standby power
- Mining power supply
- Oilfield and energy project power
- Infrastructure and public utility backup power
- Commercial building and large facility standby power
- Emergency power supply
- Containerized temporary or project power supply
- Multi-unit power station applications with synchronizing system
Why Choose SWT for This Generator Set?
- Complete generator set integration: SWT provides system-level matching of engine, alternator, control panel, chassis, enclosure and accessories.
- Project customization: voltage, frequency, enclosure type, ATS, synchronizing system, fuel system and monitoring functions can be configured according to site requirements.
- Factory testing before delivery: each generator set passes load tests and control system inspection before shipment.
- Flexible installation: open type and containerized solutions are available for indoor, outdoor and project-site installation.
- Large power project experience: suitable for critical backup power and multi-unit power station applications.
- After-sales and documentation support: test report, certificate, schematic diagram, installation manual and operation manual can be supplied with the equipment.
Standard Accessories
- Engine and alternator
- Common chassis
- Control box and single-unit controller
- Circuit breaker
- Industrial muffler, muffler flange and bellow joint
- Shock absorber
- Test report and certificate of quality
- Schematic diagram, installation manual and operation manual
Optional Accessories
- Daily fuel tank / bulk fuel tank
- Residential silencer
- Power cable
- Alternator anti-condensation heater
- Battery charger
- Water jacket heater and oil heater
- Fuel level sensor and automatic fuel filling system
- Soundproof enclosure or containerized enclosure
- Trailer
- RS485 extension module, Ethernet communication and cloud monitor
- ATS panel
- Motorized circuit breaker
- Synchronizing system
- Spare parts
FAQ
Q1: What is the standby power of this generator set?
A: The SC1250 / SC1250X series is designed as a 1000kW / 1250kVA class diesel generator set. The exact rating depends on frequency, voltage and engine matching.
Q2: Is this generator set available for both 50Hz and 60Hz markets?
A: Yes. 50Hz configurations are available with 380 / 400 / 415V output, and 60Hz configurations are available with 440V / 254V output.
Q3: Can SWT provide a containerized version?
A: Yes. Open type and 20-foot containerized enclosure options are available according to installation and transportation requirements.
Q4: Can this generator set work with ATS?
A: Yes. ATS can be supplied as an optional system for automatic transfer between mains power and generator power.
Q5: Can multiple units operate in parallel?
A: Yes. SWT can provide a synchronizing system for up to 32 generator sets, suitable for multi-unit power station applications.
Q6: What tests are carried out before delivery?
A: Each generator set passes load tests at 0%, 25%, 50%, 75%, 100% and 110%, together with static and transient response tests and inspection of protection devices and control systems.
Q7: What applications is this generator set suitable for?
A: It is suitable for data centers, industrial plants, mining projects, oilfield projects, infrastructure, commercial buildings and emergency standby power applications.
Q8: Can the configuration be customized?
A: Yes. SWT can customize voltage, frequency, enclosure, fuel system, ATS, synchronizing system, communication modules and monitoring options according to project needs.
