1125kVA Cummins Power Generator C1250D5A

Generator Set Specifications

Item	Specification
Genset model	C1250D5A
Prime power	1125kVA / 900kW
Standby power	1250kVA / 1000kW
Rated voltage	400/230V, configurable within 380-440V project requirements
Frequency	50Hz
Rated speed	1500rpm
Phase	3 phase, 4 wire
Power factor	0.8 lagging
Duty	Prime power
Application	Industrial generator set
Engine brand	Cummins
Engine model	KTA38-G9
Fuel type	Diesel
Controller model	PowerCommand 3.3 source-listed; DSE7420 MKII recommended DeepSea alternative
Fuel consumption at full prime load	229 L/h
Fuel consumption at full standby load	254 L/h
Calculated full-prime fuel rate	About 0.254 L/kWh at 900kW
Open dimensions	4852 x 1785 x 2251 mm
Open weight	8096 kg
Open wet weight	8474 kg
Silent enclosure type	Acoustic canopy, industrial weather-protected type
Silent dimensions	6058 x 2438 x 2696 mm
Silent weight	12300 kg
Silent noise level	75-85 dB(A) at 7m typical for this acoustic enclosure class

Engine Specifications

Item	Specification
Engine brand	Cummins
Engine model	KTA38-G9
Engine type	4-cycle V12 diesel engine
Cylinders	12V
Displacement	38 L
Bore x stroke	159 mm x 159 mm
Rated speed	1500rpm
Aspiration	Turbocharged and aftercooled
Fuel system	PT fuel system / direct injection
Cooling system	Water cooled, set-mounted radiator arrangement
Governor	Electronic governor
Starting system	24V DC electric start
Fuel consumption	229 L/h at full prime load

Alternator Specifications

Item	Specification
Alternator brand	Cummins / Stamford
Alternator model	S6L1D-G41 / PI734A class low-voltage alternator
Output rating	Matched for 1125kVA / 900kW prime and 1250kVA / 1000kW standby
Rated voltage	400/230V
Voltage range	380-440V
Frequency	50Hz
Phase	3 phase, 4 wire
Connection	Wye, 3-phase
Power factor	0.8 lagging
Insulation class	Class H
Protection class	IP23
AVR	Automatic voltage regulator
Excitation system	Brushless, self-excited or PMG-supported according to project configuration
Bearing type	Two bearing
Voltage regulation	+/- 1.0% typical

The 900kW 1125kVA Cummins Industrial Generator Set KTA38-G9 gives data centers, mining, oil and gas, utilities, heavy industry, and large infrastructure projects a 50Hz diesel generator set with 1000kW standby capacity.
The 1250kVA standby rating gives about 11.111% reserve above the 1125kVA prime rating, helping support motor starting, transfer recovery, pump loads, UPS recharge, and short emergency peaks.
The Cummins KTA38-G9 engine uses a 12V, 38 L diesel platform, giving buyers a proven engine base with broad parts availability and service support.
Full-prime fuel consumption of 229 L/h equals about 0.254 l/kwh at 900kw, giving procurement teams a practical diesel storage and operating-cost benchmark for same-power-class generator set comparisons.
The open type generator set footprint is about 8.661 square meters, supporting plant-room installation, service access, and easier transport planning before site work starts.
The silent type generator set package at 6058 x 2438 x 2696 mm supports outdoor standby power projects where acoustic treatment, weather protection, and maintenance access are required.
PowerCommand 3.3 source-listed; DSE7420 MKII recommended DeepSea alternative supports auto-start, alarms, shutdown protection, event monitoring, and practical daily operation for industrial diesel generator set users.
Compared with typical same-power-class diesel generator sets, this Cummins generator set combines a clear prime/standby rating, a serviceable footprint, established engine support, and flexible open or silent configuration choices.

Bespoke Manufacturing

Engineered to Your Exact Specifications

From standard backup power to complex multi-megawatt parallel systems, we customize every aspect of your generator set to ensure peak performance in your specific operational environment.

Open Skid Type

Standard configuration for indoor plant rooms. Features a heavy-duty fabricated steel base frame with built-in anti-vibration mounts.

Silent Canopy

Weatherproof and highly sound-attenuated (down to 65dB(A) @ 7m). Built with cold-rolled steel and fire-retardant acoustic foam.

Mobile Trailer

Single or dual-axle designs with mechanical/air brakes and lighting systems. Ideal for mining, construction, and rental applications.

Containerized

ISO standard 20ft/40ft containers for high-capacity units (500kVA+). Offers ultimate protection and simplifies global shipping.

Core Components

Alternator Upgrades

Partnering with Stamford, Leroy Somer, and Mecc Alte. We offer custom configurations including:

PMG Excitation System
IP44/IP55 Protection
Anti-condensation Heaters
Heavy-duty Winding

Intelligent Controllers

Equipped with Deep Sea (DSE), ComAp, or SmartGen modules, enabling advanced power management:

Remote SCADA Monitoring
Auto Mains Failure (AMF)
Multi-unit Synchronization
Cloud-based Diagnostics

Comprehensive Solutions

Beyond hardware, our engineering team provides end-to-end services to ensure your power system integrates seamlessly into your project.

Extreme Climate Prep

Engine water/oil pre-heaters for cold regions, and sand-proof louvers with heavy-duty air filters for deserts.

Parallel & Sync Systems

Design and manufacture of synchronization panels to run multiple generator sets in parallel for large loads.

Custom ATS Panels

Automatic Transfer Switches tailored to your grid voltage, ensuring seamless switching during power outages.

Testing & Certification

Rigorous Factory Acceptance Testing (FAT) with load banks. Support for CE, ISO9001, and SGS third-party inspections.

Open Type

Length (L)

4852 mm

Width (W)

1785 mm

Height (H)

2251 mm

Dry Weight

8096 kg

Silent Type

Length (L)

6058 mm

Width (W)

2438 mm

Height (H)

2696 mm

Dry Weight

12300 kg

Dimensional & Assembly (DA) Drawing

Available upon request

Technical Data Sheet

Generator Set Specifications

Engine Specifications

Alternator Specifications

Engineered to Your Exact Specifications

Open Skid Type

Silent Canopy

Mobile Trailer

Containerized

Core Components

Alternator Upgrades

Intelligent Controllers

Comprehensive Solutions

Extreme Climate Prep

Parallel & Sync Systems

Custom ATS Panels

Testing & Certification

Open Type

Silent Type

Dimensional & Assembly (DA) Drawing

Before confirming this configuration

Get a Custom Quote

Request a quote

1125kVA Cummins Power Generator C1250D5A

Technical Data Sheet

Generator Set Specifications

Engine Specifications

Alternator Specifications

Engineered to Your Exact Specifications

Open Skid Type

Silent Canopy

Mobile Trailer

Containerized

Core Components

Alternator Upgrades

Intelligent Controllers

Comprehensive Solutions

Extreme Climate Prep

Parallel & Sync Systems

Custom ATS Panels

Testing & Certification

Open Type

Silent Type

Dimensional & Assembly (DA) Drawing

Before confirming this configuration

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Get a Custom Quote

Request a quote