£45,145 Ex Works + VAT
The Cummins C550D5QB is a high-performance 550kVA diesel generator engineered to deliver dependable power for critical standby and continuous prime power applications. Offering 550kVA standby power (440kW) and 500kVA prime power (400kW), this industrial generator combines the proven reliability of a Cummins diesel engine with advanced control technology.
Power interruptions can have significant operational and financial consequences. The Cummins C550D5QB has been designed to provide fast, reliable backup power whenever the mains supply fails, ensuring business continuity across a wide range of sectors.
As a 550kVA standby generator, it is ideally suited to facilities with substantial electrical demands, including manufacturing plants, logistics hubs, commercial buildings, healthcare facilities, data centres, agricultural operations and infrastructure projects. Its ability to respond rapidly to load changes helps maintain stable power delivery during emergency situations, protecting sensitive equipment and critical processes.
The generator set has been tested in accordance with internationally recognised ISO 8528 standards, providing confidence in its performance under demanding operating conditions.
In locations where utility power is unavailable or unreliable, the Cummins C550D5QB excels as a 500kVA prime power generator. Designed to operate for unlimited hours while supplying variable electrical loads, it provides a dependable power source for remote operations and off-grid installations.
Common prime power applications include:
The robust diesel engine platform delivers consistent performance while maintaining efficient fuel consumption across varying load profiles, helping operators manage running costs without compromising reliability.
At the heart of this industrial diesel generator is a Cummins M15 series engine, developed specifically for demanding power generation applications. Its heavy-duty design incorporates advanced fuel injection technology, turbocharging and charge-air cooling to deliver excellent load acceptance and dependable operation.
Cummins engines are recognised worldwide for their durability, extensive service support network and long operational life. For organisations operating in remote locations or managing critical infrastructure, access to global parts availability and technical expertise can be a major advantage.
The engine's electronic governing system provides precise speed control, contributing to stable frequency performance and helping maintain power quality for sensitive electrical equipment.
A key feature of the C550D5QB is its integrated PowerCommand® control system. This sophisticated microprocessor-based controller provides comprehensive monitoring, protection and management functions within a user-friendly interface.
Operators benefit from real-time visibility of generator performance, operational status and diagnostic information, enabling proactive maintenance and rapid fault identification. The system also supports communications interfaces for integration with building management systems (BMS), PLC controls and wider site infrastructure.
Advanced control capabilities include:
These features help maximise generator availability while reducing maintenance complexity.
The C550D5QB is equipped with a Stamford alternator, a trusted name in power generation worldwide. The brushless alternator design contributes to long-term reliability while reducing maintenance requirements compared with traditional brushed systems.
Precise voltage regulation helps maintain a stable electrical output under varying load conditions, making this generator suitable for powering sensitive equipment as well as heavy industrial loads. Combined with the PowerCommand control platform, the alternator delivers dependable performance in both standby and continuous operation.
Industrial power systems must perform reliably in challenging environments. The Cummins C550D5QB has been engineered with this requirement in mind, incorporating a heavy-duty cooling package and durable construction throughout the generator set.
The integrated radiator cooling system simplifies installation while supporting operation in high ambient temperatures. This makes the generator suitable for deployment in a variety of climates, from temperate European locations to hotter regions across Africa, the Middle East and Asia.
The control system is specifically designed and tested to operate reliably in harsh environmental conditions, helping ensure uninterrupted power when it matters most.
For organisations relying on standby or continuous generation, fuel efficiency remains a major consideration. The C550D5QB combines strong power output with efficient fuel utilisation, helping reduce operational expenditure over the lifetime of the equipment.
Its large integrated fuel capacity supports extended running periods between refuelling intervals, making it particularly valuable for remote sites and applications where uninterrupted operation is essential.
The generator's fuel system has been engineered to deliver reliable performance while supporting efficient combustion across varying load demands, helping operators optimise both fuel consumption and emissions performance.
The Cummins C550D5QB is available in both open and sound-attenuated enclosed configurations, allowing customers to select the most appropriate solution for their installation requirements.
The enclosed version offers significant noise reduction benefits and incorporates features designed to improve operational convenience and environmental protection. This makes it particularly suitable for locations where acoustic performance is an important consideration, including commercial premises, healthcare facilities and urban developments.
Additional options are available to tailor the generator to specific site requirements, ensuring maximum flexibility for consultants, contractors and end users.
The versatility of this 550kVA generator makes it suitable for a broad range of applications where dependable power is essential.
Typical uses include:
Its combination of standby and prime power capability enables the generator to support both emergency backup requirements and continuous operational demands.
Investing in a large diesel generator requires confidence in both the equipment and the support behind it. Cummins provides a comprehensive global service network, giving customers access to technical expertise, genuine parts and maintenance support virtually anywhere in the world.
This extensive support infrastructure helps minimise downtime, protect asset value and ensure long-term operational reliability. For businesses seeking a dependable 550kVA generator that delivers exceptional performance in both standby and prime power applications, the Cummins C550D5QB represents a proven and highly capable power generation solution.
* at 100% prime rated load
Cummins C450D5
