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2026
  1. Home
  2. Generators
  3. Cummins
  4. C1100D5

1100 kVA Cummins Open Diesel Generator

Cummins C1100D5 | 1100 kVA Open Diesel Generator
* Image(s) are for illustration purposes only, actual configuration may differ slightly.

Cummins C1100D5

1100 kVA Open Diesel Generator

Standby1110 kVA
888 kW
Prime1000 kVA
800 kW
EngineCummins QST30-G4

AlternatorStamford S6LD1F

Control PanelCummins PowerCommand 3.3

Frequency50Hz

Phase3

Voltage400V

Fuel TankN/A
View Full Data Sheet

POA

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Delivery
ContactContact Us

Cummins C1100D5 Diesel Generator | 1100kVA Standby Power, 1000kVA Prime Power

The Cummins C1100D5 is a high-capacity diesel generator engineered to deliver dependable power for critical applications where reliability, efficiency and long-term performance are essential. Providing 1100kVA standby power and 1000kVA prime power, this industrial generator set combines proven Cummins engine technology with robust power generation capabilities for demanding operations across the UK and worldwide.

1100kVA Standby Generator for Critical Backup Power

When uninterrupted power is essential, the Cummins C1100D5 provides a dependable emergency power solution capable of supporting large electrical loads during utility outages. Rated at 1100kVA standby power, this diesel standby generator is designed for facilities where downtime is not an option, helping maintain operational continuity during unexpected disruptions.

The generator is particularly well suited to mission-critical environments such as:

  • Data centres and server facilities
  • Hospitals and healthcare infrastructure
  • Manufacturing plants
  • Water treatment facilities
  • Commercial buildings
  • Telecommunications networks
  • Utility and infrastructure projects
  • Distribution and logistics centres

Its rapid response capability and advanced electronic governing system help maintain stable performance under changing load conditions, making it an ideal backup generator for critical applications.

1000kVA Prime Power Generator for Continuous Operation

For sites operating away from the utility grid or requiring long-duration power generation, the Cummins C1100D5 offers an impressive 1000kVA prime power rating. This makes it an excellent choice for organisations seeking a reliable prime power generator capable of supporting continuous or variable loads over extended periods.

Prime-rated diesel generators are widely used across industries where dependable power is required around the clock. From remote industrial facilities and mining operations to large-scale construction projects and temporary power installations, the C1100D5 delivers the performance needed to keep operations running efficiently.

Its ability to accommodate fluctuating power demands makes it particularly valuable in environments where load profiles change throughout the day.

Powered by the Proven Cummins QST30 Engine

At the heart of the C1100D5 is the highly respected Cummins QST30-G4 engine, a turbocharged and charge-air-cooled V12 diesel engine developed specifically for demanding power generation applications.

Cummins engines are recognised worldwide for their durability, fuel efficiency and ability to perform reliably in challenging operating conditions. The QST30 platform has earned a strong reputation across numerous industries due to its robust design and long service life.

Key benefits of the engine platform include:

  • High power density for efficient performance
  • Excellent transient response characteristics
  • Reliable operation under varying loads
  • Proven durability in harsh environments
  • Global parts and service support network
  • Optimised fuel efficiency for lower operating costs

This combination of performance and reliability helps reduce lifecycle costs while ensuring dependable power when it matters most.

Industrial Diesel Generator Built for Demanding Environments

The Cummins C1100D5 has been developed to operate in challenging conditions where dependable power generation is essential. Its heavy-duty construction and industrial-grade components help ensure reliable performance across a wide range of applications and environmental conditions.

The generator incorporates an advanced cooling system designed to support operation in elevated ambient temperatures, making it suitable for installation in diverse climates around the world. Whether deployed in a busy urban environment, a remote industrial site or a demanding infrastructure project, the generator is engineered to maintain stable operation under pressure.

This robust design contributes to longer service intervals, reduced maintenance requirements and enhanced operational confidence.

Fuel-Efficient Performance for Lower Running Costs

Operating costs remain a major consideration for any large diesel generator investment. The Cummins C1100D5 has been engineered to balance high power output with efficient fuel consumption, helping operators maximise productivity while controlling expenditure.

Advanced fuel management characteristics and precise electronic engine control enable the generator to respond effectively to varying load requirements while maintaining efficient operation. This is particularly important for prime power applications where generators may operate for extended periods.

By combining reliable power delivery with efficient fuel utilisation, the C1100D5 helps businesses optimise total cost of ownership over the life of the equipment.

Reliable Power Generation for Multiple Industries

The versatility of the Cummins C1100D5 makes it suitable for a broad range of sectors requiring dependable large-scale power generation.

Construction and Infrastructure Projects

Major construction projects often require substantial temporary power before permanent electrical connections become available. The C1100D5 provides a dependable source of power for heavy equipment, site facilities and critical project operations.

Data Centres

Data centres require highly reliable backup power systems capable of responding immediately during utility failures. The generator's stable power output and dependable performance make it well suited to supporting critical IT infrastructure.

Manufacturing Facilities

Industrial production environments rely on continuous power availability to avoid costly downtime. The C1100D5 helps maintain productivity by providing reliable standby or prime power support.

Utilities and Public Services

Power generation equipment plays a vital role in supporting essential public infrastructure. Water treatment facilities, pumping stations and utility networks can benefit from the generator's dependable operation and substantial power capacity.

Rental Power Applications

For power rental providers, the Cummins C1100D5 offers a versatile solution capable of supporting a wide variety of customer requirements, from planned maintenance projects to emergency power deployments.

Advanced Alternator and Power Quality Performance

A generator's ability to deliver stable, high-quality electrical output is critical for protecting connected equipment and maintaining operational reliability. The Cummins C1100D5 incorporates a premium alternator package designed to provide consistent voltage regulation and dependable electrical performance.

This helps ensure compatibility with a wide range of electrical systems and sensitive equipment, making the generator suitable for both industrial and commercial installations.

The combination of a proven alternator and sophisticated engine control systems supports reliable power delivery even during sudden load changes, helping to protect connected assets and improve overall system stability.

Global Support from a Trusted Power Generation Brand

One of the strongest advantages of investing in a Cummins generator is access to one of the world's most established support networks. Cummins has built a global reputation for engineering excellence, providing customers with confidence that technical expertise, genuine parts and service support are readily available.

For organisations operating internationally, this worldwide presence can simplify maintenance planning and support long-term operational reliability across multiple locations.

Why Choose the Cummins C1100D5?

The Cummins C1100D5 combines substantial power output, proven engine technology and industrial-grade reliability in a single integrated solution. Whether required as a 1100kVA standby generator for emergency backup power or as a 1000kVA prime power generator for continuous operation, it delivers the performance, efficiency and durability expected from a world-leading power generation manufacturer.

For businesses seeking a dependable industrial diesel generator capable of supporting critical operations, the C1100D5 represents a powerful and reliable solution engineered for long-term success.

Generators Similar to the Cummins C1100D5

Cummins C900D5

Cummins C900D5

Cummins C900D5

Standby900 kVA

Prime820 kVA
EngineCummins
TypeOpen
Voltage400V
Made InIndia

POA

Cummins C1000D5

Cummins C1000D5

Cummins C1000D5

Standby1041 kVA

Prime939 kVA
EngineCummins
TypeOpen

Power Output

Standby (ESP) Rating1110 kVA
888 kW

Prime (PRP) Rating1000 kVA
800 kW

Frequency50Hz

Phase3

Voltage400V

Amps Per Phase1604

Generator Set

ConfigurationOpen Type

AlternatorStamford S6LD1F

Control PanelCummins PowerCommand 3.3

Dimensions
Length4417mmWidth2000mmHeight2387mm

Weight
Dry6934kgWet7144kg

Output ConnectionNone

Engine

EngineCummins QST30-G4

RPM1500

Engine GovernorElectronic

Emissions StandardUnregulated

Radiator Ambient Temp.40°C

Fuel

Fuel TypeDiesel

Fuel Tank CapacityN/A

Consumption202 Litres/hour*

AutonomyN/A

* at 100% prime rated load

Warranty

Standby Applications2 years or 500 hours

Prime Applications1 year unlimited hours
Cummins Generator Warranty Statement
Voltage
400V
Made InUK

POA

Cummins C1100D5B

Cummins C1100D5B

Cummins C1100D5B

Standby1132 kVA

Prime1029 kVA
EngineCummins
TypeOpen
Voltage400V
Made InIndia

POA

Cummins C1250D5AB

Cummins C1250D5AB

Cummins C1250D5AB

Standby1250 kVA

Prime1125 kVA
EngineCummins
TypeOpen
Voltage400V
Made InIndia

POA