If you are looking for a Cummins 500 kVA generator, the Cummins C550D5QB is an important model to consider in the Q Range. It provides 500 kVA / 400 kW at Prime rating and 550 kVA / 440 kW at Standby rating, operates at 50 Hz and uses the M15-G8 diesel engine.
The C550D5QB is designed for commercial and industrial stationary applications where dependable prime or standby power is required. The model is available in open and enclosed configurations and uses a Stamford S5L1S-D4 alternator with a PC 2.2 controller.
One specification that immediately stands out is its 995-litre fuel tank capacity. The enclosed version measures 4530 × 1780 × 2630 mm and has a listed weight of 5458 kg, while the open version measures 3500 × 1750 × 2120 mm and weighs 4154 kg.
The Cummins C550D5QB is a 50 Hz diesel generator rated at 500 kVA Prime and 550 kVA Standby, with a 14.5-litre M15-G8 engine, 995-litre fuel tank, Stamford S5L1S-D4 alternator and PC 2.2 controller.
Cummins C550D5QB 500 kVA Generator Specifications
The following specifications are based primarily on the Cummins Q Range. The C550D5QB is identified as the 500 kVA Prime / 550 kVA Standby model in the Q Range.
| Specification | C550D5QB Details |
|---|---|
| Generator model | C550D5QB |
| Frequency | 50 Hz |
| Fuel type | Diesel |
| Prime power | 400 kW / 500 kVA |
| Standby power | 440 kW / 550 kVA |
| Engine model | M15-G8 |
| Engine type | 4-cycle, inline, turbocharged and charge-air cooled |
| Displacement | 14.5 litre |
| Number of cylinders | 6 |
| Cylinder block | Cast iron |
| Bore | 135 mm |
| Stroke | 169 mm |
| Starting voltage | 24 volts |
| Fuel system | XPI |
| Cooling system | 55°C ambient radiator |
| Alternator | Stamford S5L1S-D4 |
| Alternator type | Brushless, single bearing, revolving field |
| Controller | PC 2.2 |
| Battery capacity | 2 × 140 Ah |
| Fuel tank | 995 litres |
| Enclosed sound power level | 106 dB(A) Lw(A) |
Note: These specifications are useful when comparing a 500 kVA diesel generator with other commercial and industrial generator sets. Always verify the latest manufacturer documentation and the exact configuration before procurement.
Cummins 500 kVA Generator Specifications PDF
Looking for a printable reference? We have prepared a Cummins 500 kVA generator specifications PDF covering the C550D5QB model, including its Prime and Standby ratings, M15-G8 engine, alternator, controller, fuel tank capacity, dimensions and weight.
PDF: C550D5QB 500 kVA Generator Specifications | Prepared by: DGSet.net
📄 Download Cummins 500 kVA Generator Specifications PDFThis PDF is an independent technical reference prepared by DGSet.net. Specifications should be verified against the latest manufacturer documentation before procurement or installation.
Is the C550D5QB a 500 kVA or 550 kVA Generator?
This is an important point because generator ratings can be confusing.
The C550D5QB has two ratings:
- Prime: 500 kVA / 400 kW
- Standby: 550 kVA / 440 kW
Therefore, when someone searches for a 500 kVA Cummins generator, the C550D5QB can match the requirement when the application calls for 500 kVA Prime power.
However, its maximum listed Standby rating is 550 kVA. The two ratings should not be treated as interchangeable because Prime and Standby ratings are intended for different operating conditions.
Cummins’ current product information also identifies the C550D5QB with 500 kVA Prime and 550 kVA Standby ratings.
Cummins 500 kVA DG Set Engine Details
The C550D5QB uses the Cummins M15-G8 diesel engine.
According to the supplied specifications, it is a four-cycle, inline engine with turbocharging and charge-air cooling. It has a 14.5-litre displacement, six-cylinder cast-iron cylinder block, 135 mm bore and 169 mm stroke.
The engine uses an XPI fuel system and a 24-volt starting system. Cooling is provided through a radiator specified for a 55°C ambient condition.
For commercial and industrial installations, these engine specifications are important because the engine is the main source of mechanical power that ultimately drives the alternator.
Cummins 500 kVA DG Diesel Tank Capacity
The listed fuel tank capacity of the C550D5QB is 995 litres.
This is one of the most useful specifications for installation planning because the fuel-storage requirement directly affects the generator room, fuel system, refuelling schedule and operating strategy.
A polymeric fuel tank among the Q Range features and also highlights a 110% spillage catchment designed to help prevent liquid leakage and protect the environment.
However, fuel tank capacity should not be confused with generator runtime.
A 995-litre tank does not automatically mean that the generator will operate for a specific number of hours. Actual runtime depends on the electrical load, engine operating conditions, fuel consumption characteristics and installation configuration.
Cummins 500 kVA DG Set Dimensions and Weight
Physical dimensions are especially important before purchasing or installing a large generator.
| Configuration | Length | Width | Height | Weight |
| Open C550D5QB | 3500 mm | 1750 mm | 2120 mm | 4154 kg |
| Enclosed C550D5QB | 4530 mm | 1780 mm | 2630 mm | 5458 kg |
Enclosed version
The enclosed version is approximately:
- 4.53 metres long
- 1.78 metres wide
- 2.63 metres high
- 5458 kg listed weight
This makes access planning essential. Door openings, ramps, lifting arrangements, foundation dimensions and maintenance clearance should all be checked before delivery.
Open version
The open version is approximately:
- 3.50 metres long
- 1.75 metres wide
- 2.12 metres high
- 4154 kg listed weight
The open configuration is more compact, but the final installation requires an appropriate generator room or weather-protection arrangement.
Cummins 500 kVA Generator Enclosed vs Open Version
The C550D5QB is available in both open and enclosed configurations in the supplied Q Range information.
An enclosed generator can be useful where sound attenuation and weather protection are important.
An open generator, on the other hand, is generally considered where the installation has a dedicated generator room or another suitable enclosure arrangement.
The correct choice depends on the site, acoustic requirements, ventilation design, weather exposure, access requirements and applicable regulations.
Key Features of the C550D5QB
The Q Range highlights several features that are relevant to the C550D5QB and other models in the range.
55°C ambient radiator
The standard cooling system is specified with a 55°C ambient radiator. This is particularly relevant for installations where the generator may operate in high ambient temperatures.
Coolant heater
The Q Range includes a coolant-heater provision to help ensure engine starting during low ambient temperatures. The coolant heater as standard on enclosed versions and optional on open versions.
Easier maintenance
The Q Range uses a bolted-frame concept intended to make maintenance and servicing easier.
For commercial users, serviceability is important because extended downtime can affect business operations.
Fuel-spill protection
It is a polymeric fuel tank and 110% spillage catchment as Q Range features.
Battery and starting equipment
The standard equipment scope includes:
- Battery charger
- Starting battery
- Battery disconnector
- Coolant heater*
- IV poles circuit breaker
Applications of a 500 kVA Cummins Generator
A generator in this power class can be considered for a variety of commercial and industrial requirements, depending on the site’s actual load and operating conditions.
Applications:
- Healthcare
- Industry and manufacturing
- Farming and agriculture
- Public buildings
- Construction
- Hotels
- Commercial and small office buildings
For any specific project, the generator should be selected based on an electrical load assessment rather than simply choosing a model based on the connected load nameplate.
Cummins 500 kVA Generator Price in India
The Cummins 500 kVA generator price in India is not a single fixed number.
The final price can vary significantly depending on:
- Prime or standby rating requirement
- Open or enclosed configuration
- Alternator specification
- Control panel requirements
- Fuel-system requirements
- Installation scope
- Acoustic treatment
- Transportation
- Taxes
- Foundation and civil work
- AMF/ATS requirements
- Cabling and electrical installation
- Additional accessories
- Warranty and AMC requirements
This is also why online searches for 500 kVA Cummins generator price can show widely different numbers.
A quotation that appears cheaper may not include the same accessories, installation work, transportation, control equipment or taxes.
What Should You Check Before Buying a 500 kVA DG Set?
Before purchasing, do not compare generator prices alone.
Check the following:
1. Prime or standby requirement
Confirm whether your project requires 500 kVA Prime or a different standby rating.
2. Actual electrical load
Prepare a load schedule and consider motor starting requirements, power factor, future expansion and maximum demand.
3. Generator dimensions
Confirm that the generator can physically enter the site and that there is adequate maintenance space.
4. Fuel-storage requirement
The C550D5QB specification lists a 995-litre tank, but required fuel autonomy should be calculated separately.
5. Fuel consumption
Ask for manufacturer fuel-consumption data at the loads relevant to your project instead of relying on generic internet figures.
6. Acoustic requirements
Check the applicable sound requirements before selecting an open or enclosed configuration.
7. Installation requirements
Foundation, ventilation, exhaust, fuel piping, cable routing, earthing, protection and fire-safety requirements should be considered.
8. Service support
For a large commercial DG set, after-sales support can be as important as the initial purchase price.
Cummins 500 kVA Generator Specifications PDF
For readers who want a printable reference, we have prepared a Cummins 500 kVA generator specifications PDF covering the C550D5QB model.
The PDF includes:
- C550D5QB model identification
- Prime and standby ratings
- M15-G8 engine specifications
- Alternator details
- Controller information
- Fuel tank capacity
- Battery capacity
- Dimensions
- Weight
- Sound specification
- Important fuel-consumption and price notes
Frequently Asked Questions
What is the model number of the Cummins 500 kVA generator?
The relevant Q Range model is C550D5QB, which is rated at 500 kVA Prime and 550 kVA Standby.
What is the fuel tank capacity of the C550D5QB?
The specified fuel tank capacity is 995 litres.
What engine is used in the C550D5QB?
The generator uses the Cummins M15-G8 diesel engine with a 14.5-litre displacement and six-cylinder configuration.
What is the fuel consumption of a 500 kVA Cummins DG set?
A single fuel-consumption figure should not be assumed. The supplied specification does not provide a load-specific consumption figure. Actual consumption depends on operating load and other conditions, so manufacturer data should be requested for the exact configuration.
What are the dimensions of the C550D5QB?
The open version is 3500 × 1750 × 2120 mm, while the enclosed version is 4530 × 1780 × 2630 mm.
How much does a 500 kVA Cummins DG set cost in India?
There is no fixed price in the supplied Cummins documentation. The actual price depends on configuration, accessories, installation requirements, taxes, transportation and supplier quotation.
Is the C550D5QB 500 kVA or 550 kVA?
It has both ratings. 500 kVA is the Prime rating, while 550 kVA is the Standby rating.
What is the weight of the C550D5QB?
The listed open-set weight is 4154 kg, while the enclosed-set weight is 5458 kg. The weights represent sets with standard features and that wet weights do not include fuel.
Final Takeaway
The C550D5QB is a significant model in the Cummins Q Range for applications requiring 500 kVA Prime power or 550 kVA Standby power. Its key published specifications include the M15-G8 diesel engine, 14.5-litre displacement, Stamford S5L1S-D4 alternator, PC 2.2 controller and 995-litre fuel tank.
For buyers, the most important lesson is to look beyond the kVA rating. Fuel consumption, operating load, Prime versus Standby duty, physical dimensions, installation requirements, acoustic requirements, service support and the complete scope of supply all affect the suitability and total cost of a DG set.
If you are comparing quotations, always ask suppliers to provide the exact model, rating, configuration, fuel-consumption data at specified loads, dimensions, weight, accessories and complete commercial scope. This makes it much easier to compare like-for-like offers.
Disclaimer: This article is an independent technical reference prepared using the supplied Cummins Q Range documentation and publicly available manufacturer information. Cummins, C550D5QB, M15-G8 and related names are trademarks of Cummins Inc. Specifications, availability, certification, pricing and configuration may change by market and production revision. The information above should not be treated as a substitute for the latest manufacturer datasheet, official quotation, installation manual or applicable local regulations. No fixed fuel-consumption or selling-price figure has been published where the source documentation does not provide one.
