1250kVA Cummins Power Generator C1400D5

Generator Set Specifications

Item	Specification
Genset model	C1400D5
Prime power	1250kVA / 1000kW
Standby power	1400kVA / 1120kW
Data center continuous 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	KTA50-G3
Fuel type	Diesel
Controller model	DSE7420 MKII recommended DeepSea controller
Fuel consumption at full prime load	261 L/h
Fuel consumption at full standby load	293 L/h
Calculated full-prime fuel rate	About 0.261 L/kWh at 1000kW
Open dimensions	5143 x 2000 x 2518 mm
Open dry weight	9913 kg
Open wet weight	10069 kg
Silent / ISO container dimensions	12192 x 2438 x 2896 mm, 3233 mm with exhaust stack
Silent / ISO container dry weight	17419 kg
Silent / ISO container wet weight	17575 kg
Silent noise level	Based on Cummins sound data sheet MSP-2040 for the C1400D5 enclosed configuration

Engine Specifications

Item	Specification
Engine brand	Cummins
Engine model	KTA50-G3
Engine type	Cast iron, 4-cycle, 60-degree Vee diesel engine
Cylinders	16V
Displacement	50.3 L
Bore x stroke	159 mm x 159 mm
Compression ratio	13.9:1
Rated speed	1500rpm
Aspiration	Turbocharged and after-cooled
Fuel system	Direct injection diesel fuel system
Cooling system	Set-mounted radiator cooling, 40C standard with 50C and 55C options
Governor	Electronic governor
Starting system	24V DC electric start
Gross engine power output	1075kWm prime / 1251kWm standby
Lubricating oil system capacity	152 L
Coolant capacity with radiator	424 L
Overspeed limit	1725rpm +/- 50
Fuel consumption	261 L/h at full prime load; 293 L/h at full standby load

Alternator Specifications

Item	Specification
Alternator brand	Cummins / Stamford equivalent
Alternator model	PI734B low-voltage alternator, with S7L1D-C4 and S6L1D-H4 options
Output rating	Matched for 1250kVA / 1000kW prime and 1400kVA / 1120kW 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
Temperature rise	150/125 C standby / prime configuration available
Poles	4 pole
Insulation class	Class H
Protection class	IP23
AVR	Automatic voltage regulator
Excitation system	Brushless, self-excited with PMG support
Bearing type	Two bearing
Voltage regulation	+/- 1.0% typical

The 1000kW 1250kVA Cummins Industrial Generator Set C1400D5 KTA50-G3 gives factories, hospitals, commercial facilities, utilities, mining sites, and data centers a 50Hz diesel generator set with 1120kW standby capacity for critical backup power.
The 1400kVA standby rating gives a 12% reserve above the 1250kVA prime rating, helping support motor starting, pump inrush, UPS recharge, and recovery after transfer events in high-load industrial systems.
The Cummins KTA50-G3 V16 engine uses a 50.3 L displacement platform with 159 mm x 159 mm bore and stroke, giving 1MW generator set buyers a large-displacement engine base for stable load acceptance and voltage recovery.
Full-prime fuel consumption of 261 L/h equals about 0.261 L/kWh at 1000kW, giving procurement teams a clear operating-cost and diesel storage benchmark for same-power-class generator set comparisons.
The open type generator set footprint is about 10.3 square meters, with a 5143 mm package length that supports compact plant-room installation and easier service access than a full ISO container layout.
The ISO container / silent type configuration uses a 12192 x 2438 x 2896 mm package, giving outdoor projects a factory-style enclosed generator set option with weather protection and acoustic treatment.
Cummins data lists 40C standard radiator cooling with 50C and 55C cooling options, supporting use in hot-climate industrial sites, mining projects, utilities, and oil and gas facilities.
Compared with typical same-power-class diesel generator sets, the C1400D5 combines a 50-liter Cummins engine platform, 12% standby reserve, documented open and containerized dimensions, and global Cummins service support for lower procurement risk.

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)

5143 mm

Width (W)

2000 mm

Height (H)

2518 mm

Dry Weight

9913 kg

Silent Type

Length (L)

12192 mm

Width (W)

2438 mm

Height (H)

2896 mm

Dry Weight

17419 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

1250kVA Cummins Power Generator C1400D5

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