Cummins Generator 250 kVA: Price, Specifications, Fuel Consumption and More

A Cummins generator 250 kVA is a popular capacity class for commercial buildings, industrial facilities, healthcare facilities, hotels, infrastructure projects and other applications that require substantial standby or prime power.

However, buyers searching for a Cummins generator 250 kVA price should first understand an important technical point: the current Cummins C275D5I in the L8.9 I-Range is rated at 250 kVA / 200 kW for Prime Power and 275 kVA / 220 kW for Standby Power at 50 Hz. Therefore, 250 kVA is its prime rating, while its standby rating is higher at 275 kVA. Cummins lists the model with the 6LTAA8.9-G4 diesel engine and identifies it as part of the L8.9 I-Range.

This distinction is important when comparing quotations because a supplier may advertise a generator simply as a “250 kVA Cummins generator”, while the exact model, rating, engine, enclosure, alternator, control system and configuration may differ.

In this guide, we examine the current Cummins C275D5I/L8.9 I-Range information available from Cummins, explain the Cummins 250 kVA generator price in India, discuss fuel consumption and fuel-tank information, and identify specifications that should be verified before purchasing.

Cummins’ official product page lists the 50 Hz prime rating as 200 kW / 250 kVA and the standby rating as 220 kW / 275 kVA. It also lists the 6LTAA8.9-G4 engine and the main engine specifications shown above.

The supplied Cummins brochure additionally identifies the standard alternator as UCD27 4K and standard controller as PS0600 for the C275D5I.

Cummins Generator 250 kVA Price in India

One of the most common searches related to this generator is:

“cummins generator 250 kva price”

and, more specifically:

“cummins generator 250 kva price in india.”

There is no single official retail price published on the Cummins product page. Cummins provides a Request a Quote option rather than displaying a fixed selling price.

This is normal for industrial generator sets because the final price depends on the exact configuration and project requirements.

What is the current market price of a 250 kVA Cummins generator?

For budget planning, DGSet.net’s broader 2026 Cummins market-price guide currently places 250 kVA Cummins generator sets at approximately ₹15.50 lakh to ₹20.85 lakh or more, depending on configuration and market conditions. This should be treated as a market reference rather than an official Cummins price.

At the same time, current Indian online listings for a different Cummins 250 kVA configuration, the C250 D5 P, show prices around ₹12.04 lakh to ₹12.40 lakh. Those listings also identify a 360-litre fuel tank and 5,424 kg dry weight.

These figures should not be automatically applied to the newer C275D5I because the C250 D5 P and C275D5I are different generator configurations.

Practical price range

Cummins 250 kVA generator prices in India can vary substantially depending on the model and configuration. For general budgeting, current market references are roughly in the ₹15.5 lakh–₹20.85 lakh+ range for 250 kVA Cummins generator sets, but the exact C275D5I quotation must be obtained from Cummins or an authorised supplier.

The final quotation may be affected by:

• Generator model and engine
• Prime versus standby rating
• Acoustic enclosure
• Control panel
• AMF functionality
• Fuel-tank arrangement
• Alternator
• Installation
• Transportation
• Exhaust system
• Foundation and civil work
• Cables and accessories
• Warranty and service package
• Applicable taxes

Therefore, buyers should compare complete quotations, not merely the headline generator price.

Cummins 250 kVA Generator Specifications

The official Cummins L8.9 I-Range information provides substantial technical information for the C275D5I.

Engine

The C275D5I uses the Cummins 6LTAA8.9-G4 diesel engine. Cummins describes the engine as a four-cycle, inline, turbocharged, charge-air-cooled design.

The published specifications include:

• 6 cylinders
• 8.8-litre displacement
• 114 mm bore
• 145 mm stroke
• Cast-iron cylinder block
• Direct-injection fuel system
• 24-volt starting system
• 100 Ah battery capacity
• 70-amp battery-charging alternator

These specifications are published by Cummins for the L8.9-powered generator sets.

250 kVA Cummins Generator – Prime and Standby Rating

This is one of the most important things to understand about this generator.

The official C275D5I rating is:

Cummins lists these ratings at 50 Hz.

Is a 250 kVA generator 250 kW?

No.

A 250 kVA generator should not automatically be described as a 250 kW generator.

For the C275D5I discussed in this article, Cummins specifies:

250 kVA Prime = 200 kW Prime

and:

275 kVA Standby = 220 kW Standby.

This is also why the keyword “cummins generator 250 kw” should not be treated as an equivalent keyword to “Cummins generator 250 kVA”. It can refer to a different generator size or a misunderstanding of kVA and kW.

Cummins 250 kVA Generator Fuel Consumption

“cummins 250 kva generator fuel consumption” is another high-value search query because fuel cost is one of the largest operating expenses over the life of a diesel generator.

However, this is an area where generator buyers need to be careful.

The current Cummins L8.9 I-Range webpage supplied and the Cummins brochure used for this article do not publish a single litres-per-hour fuel-consumption figure for the C275D5I.
Therefore, we should not publish an unsupported figure as the official fuel consumption of the C275D5I.

Fuel consumption depends on factors including:

• Electrical load
• Prime or standby operation
• Actual engine loading
• Generator configuration
• Ambient conditions
• Operating condition
• Maintenance condition
• Fuel quality

Why online fuel-consumption figures can be misleading

A search for “250 kVA Cummins fuel consumption” may return figures from different Cummins generator models.

For example, an Indian supplier listing for a C250 D5 P identifies that different model and gives its own technical specifications.

That information should not be copied into an article about the C275D5I unless it has been confirmed against the exact C275D5I technical documentation.

How to calculate fuel cost

Once the exact fuel-consumption figure is obtained from the generator’s technical data sheet, fuel cost can be estimated as:

Hourly diesel cost = Fuel consumption per hour × Diesel price per litre

For example, if an exact configuration is documented at 40 litres/hour and diesel costs ₹90/litre:

40 × ₹90 = ₹3,600 per hour

For 10 hours:

₹3,600 × 10 = ₹36,000

These are example calculations only. The actual fuel-consumption figure for the purchased generator should be used.

Cummins 250 kVA Generator Fuel Tank Capacity

The search term “cummins 250 kva generator fuel tank capacity” is another important keyword cluster.

Cummins states that the L8.9 I-Range includes an integrated fuel tank for uninterrupted operation.

The supplied Cummins brochure also specifically highlights the integrated fuel tank as part of the system’s ease-of-operation features.

However, the particular public Cummins material reviewed for this article does not state the fuel tank capacity in litres for the C275D5I.

That distinction matters.

What about the commonly quoted 360-litre tank?

Some Indian supplier listings for a different Cummins 250 kVA model, the C250 D5 P, specify a 360-litre fuel tank.

We should not present 360 litres as the official C275D5I tank capacity without a technical specification sheet specifically identifying the C275D5I.

Best practice when buying

Ask the supplier to provide the exact specification for:

Cummins C275D5I – fuel tank capacity in litres

and ensure the capacity is stated on the quotation or technical datasheet.

Cummins 250 kVA DG Set Fuel Tank Capacity: Why Model Matching Matters

A common problem with online searches is that different Cummins generator models are grouped together under the generic term “250 kVA”.

The capacity alone is not sufficient to establish that two generators are technically identical.

For example:

C250 D5 P
and
C275D5I

both appear in online searches associated with 250 kVA generators, but they are not the same model.

The C275D5I is the model associated with the L8.9 I-Range and uses the 6LTAA8.9-G4 engine.

This is why buyers should compare:

Model number + engine model + rating + configuration

rather than only:

kVA rating.

Cummins 250 kVA DG Set Dimensions

Another frequently searched term is:

“cummins 250 kva dg set dimensions.”

The screenshots and official L8.9 documentation supplied for this article provide technical engine specifications and product information, but the specific overall generator-set dimensions are not stated in the material reviewed.

This means the article should not publish a guessed length, width or height.

Dimensions can also vary according to enclosure and configuration.

Before installation, the purchaser should request the manufacturer’s latest dimensional drawing showing:

• Overall length
• Overall width
• Overall height
• Service-clearance requirements
• Exhaust arrangement
• Cable entry
• Air inlet
• Hot-air discharge
• Lifting points
• Foundation requirements

This information is particularly important when the DG set room has restricted access.

Cummins 250 kVA Generator Engine Oil Capacity

The keyword “cummins 250 kva generator engine oil capacity” has useful informational intent, but again, the exact number should be taken from the engine-specific documentation.

The Cummins L8.9 I-Range page reviewed here identifies the lube-oil filter type as a spin-on full-flow filter using StrataPore technology, but it does not provide the engine’s oil-fill capacity in litres.

Therefore, the correct approach is:

Do not use a generic 250 kVA oil-capacity figure.

Request the oil-capacity specification for the exact:

6LTAA8.9-G4 engine / C275D5I generator configuration.

This is particularly important because service quantities can differ between engine variants.

Cummins 250 kVA Generator Features

The Cummins brochure supplied with this article highlights several features of the L8.9 I-Range.

Integrated fuel tank

Cummins highlights an integrated fuel tank intended to support uninterrupted operation.

Auto mains failure functionality

The brochure states that the generator includes built-in auto mains failure functionality.

Sound attenuation

Cummins describes the enclosure as carefully sound attenuated for quieter operation.

Weather-protective enclosure

The brochure describes a specially designed boltless enclosure intended to withstand all-weather conditions.

Enhanced safety design

The supplied brochure mentions UL94 fire-retardant foam, integrated CTs, a new power-cable layout and enhanced cable/harness specifications.

Higher ambient capability

Cummins states that the L8.9 cooling system supports a 50°C ambient radiator specification for L8.9-powered sets.

Control system

The Cummins brochure identifies PS0600 as the standard controller for the C275D5I.

Applications of a Cummins 250 kVA Generator

The supplied Cummins brochure lists the following application areas:

• Industrial
• Construction
• Agriculture and farming
• Hotels
• Healthcare and hospitals
• Residential and light commercial
• Public infrastructure

The brochure notes construction as a stationary application.

A 250 kVA-class generator can therefore be relevant to a wide variety of commercial and industrial projects, provided the generator is correctly sized for the actual electrical load and operating requirements.

Cummins 250 kVA Generator Specifications PDF

People searching for “cummins 250 kva generator specifications pdf” are generally looking for technical documentation rather than a simple price page.

For this article, the most authoritative source is the Cummins documentation supplied with the product information.

The Cummins brochure identifies:

• C275D5I model
• 250 kVA prime
• 275 kVA standby
• 200 kW prime
• 220 kW standby
• 6LTAA8.9-G4 engine
• UCD27 4K standard alternator
• PS0600 standard controller

The brochure is a Cummins document, Bulletin 6438249, Revision 3/25, copyright 2025 Cummins Inc.

Important note about PDFs

A PDF found through Google is not necessarily the latest version.

Before purchasing, compare the revision date and model number on the PDF with the generator model quoted by the supplier.

Cummins 250 kVA Generator Manual PDF

The query “cummins generator 250 kva manual pdf” is different from a specifications-PDF query.

A specification sheet normally gives key technical data.

A manual may contain information relating to:

• Operation
• Safety
• Controls
• Maintenance
• Warning indicators
• Service intervals
• Troubleshooting
• Installation
• Electrical connections
• Engine operation

The Cummins website provides a dedicated manuals and technical information section, so buyers should obtain the correct manual for the exact generator model and engine configuration rather than relying on a generic 250 kVA manual. Cummins’ current website also provides a manuals and technical information resource under its support section.

What Makes the Cummins L8.9 I-Range Different?

The L8.9 I-Range is presented by Cummins as a fully integrated commercial generator system for stationary prime and standby power.

The manufacturer highlights:

Heavy-duty engine:
The L8.9 uses a heavy-duty mechanical engine design.

Alternator efficiency:
Cummins lists an alternator with H-class insulation.

Higher ambient capability:
The listed standard cooling system is designed for a 50°C ambient radiator condition.

Integrated fuel tank:
The system incorporates an integrated fuel tank.

Advanced controller:
The product includes an advanced microprocessor-based controller.

Compact enclosure design:
Cummins highlights the enclosure design as part of the package’s performance and aesthetics.

These features are specifically identified in Cummins’ current product information.

How to Choose the Right 250 kVA Cummins Generator

Before buying a Cummins 250 kVA DG set, do not choose the generator only from the connected-load figure.

The first step should be a proper load assessment.

Consider:

1. Connected load

Calculate the total electrical load that needs to be supported.

2. Maximum demand

Not every connected load operates simultaneously.

3. Motor starting loads

Motors, pumps, compressors, HVAC systems and other equipment may have substantial starting requirements.

4. Prime or standby application

Determine whether the generator is required for standby backup or prime power.

The C275D5I has different prime and standby ratings, so this distinction is important.

5. Future expansion

A project with planned expansion may require additional capacity.

6. Site conditions

Consider ambient temperature, ventilation, available space, acoustics, exhaust routing and fuel requirements.

7. Service support

A generator is a long-term capital asset. Spare parts, maintenance and technical support can have a significant effect on total ownership cost.

What Should You Ask the Supplier Before Buying?

Before accepting a quotation for a Cummins 250 kVA generator, ask the supplier to provide:

1. Exact generator model number
2. Engine model
3. Prime rating
4. Standby rating
5. Alternator make and model
6. Controller make and model
7. Fuel consumption at specified loads
8. Fuel-tank capacity
9. Generator dimensions
10. Generator weight
11. Noise level and test condition
12. Enclosure specification
13. Compliance documentation applicable to the installation
14. Warranty terms
15. AMC/service terms
16. Delivery period
17. Installation scope
18. Transportation charges
19. GST and other taxes
20. Commissioning and testing scope

This is a much safer way to compare a Cummins 250 kVA generator price list than comparing only the final rupee figure.

Cummins 250 kVA Generator Price: Why Two Quotes Can Be Very Different

Suppose two suppliers quote different prices for a 250 kVA Cummins generator.

That does not automatically mean that one supplier is overpriced.

The two quotations may differ in:

• Generator model
• Engine configuration
• Alternator
• Acoustic enclosure
• Controller
• AMF panel
• Fuel tank
• Cabling
• Exhaust system
• Installation
• Transportation
• Commissioning
• Warranty
• Service coverage

For industrial procurement, the best comparison is therefore:

Total supplied-and-commissioned cost

rather than:

Lowest generator-set price.

250 kVA Cummins Generator: Price vs Total Cost of Ownership

The purchase price is only one part of the economics.

Over several years, operating costs can become much larger than the initial purchase price.

The major recurring costs include:

• Diesel
• Lubricating oil
• Filters
• Batteries
• Preventive maintenance
• Repairs
• Spare parts
• Service visits
• Downtime

This is why fuel consumption and maintenance information should be examined alongside the purchase quotation.

For a business operating the generator for many hours each year, even a small difference in fuel consumption can have a substantial financial impact.

A Note About “250 kVA” vs “250 kW”

This is worth highlighting because it is one of the most common areas of confusion.

kVA and kW are not interchangeable.

For the Cummins C275D5I:

250 kVA Prime = 200 kW Prime

and:

275 kVA Standby = 220 kW Standby.

Therefore, a search for “cummins generator 250 kw” should not be assumed to mean the same product as the C275D5I.

When purchasing, always check the manufacturer’s official rating rather than relying on the capacity written in a dealer’s page title.

Frequently Asked Questions

What is the price of a Cummins 250 kVA generator in India?

There is no single fixed price. Current market references on DGSet.net place 250 kVA Cummins sets at approximately ₹15.50 lakh to ₹20.85 lakh or more, while individual online listings for other 250 kVA Cummins configurations can be lower. The exact price depends on the model, configuration, accessories, taxes, installation and supplier.

Which Cummins model is rated at 250 kVA Prime?

The current Cummins L8.9 I-Range documentation identifies the C275D5I as 250 kVA / 200 kW Prime and 275 kVA / 220 kW Standby.

What engine is used in the Cummins C275D5I?

The C275D5I uses the Cummins 6LTAA8.9-G4 diesel engine.

What is the displacement of the Cummins 250 kVA generator engine?

The Cummins L8.9 specification lists an engine displacement of 8.8 litres.

What is the fuel tank capacity of the Cummins 250 kVA generator?

Cummins identifies an integrated fuel tank for the L8.9 I-Range, but the public documentation reviewed for the C275D5I does not state the tank capacity in litres. The commonly quoted 360-litre figure found online belongs to other 250 kVA Cummins listings and should not automatically be assigned to the C275D5I.

What is the fuel consumption of a Cummins 250 kVA generator?

The exact fuel-consumption figure should be obtained from the technical data for the specific C275D5I configuration and load condition. The current Cummins L8.9 product page reviewed here does not publish a single litres-per-hour figure.

Is a Cummins 250 kVA generator 250 kW?

No. For the C275D5I, the prime rating is 250 kVA / 200 kW. The standby rating is 275 kVA / 220 kW.

What is the engine oil capacity?

The public Cummins material reviewed here does not state the exact oil-fill quantity. The correct oil capacity should be taken from the technical documentation for the 6LTAA8.9-G4 engine.

What are the dimensions of a Cummins 250 kVA DG set?

The specific C275D5I overall dimensions were not published in the Cummins material reviewed for this article. Buyers should request the latest dimensional drawing for the exact enclosure/configuration before preparing the generator room or foundation.

Is the C275D5I suitable for industrial applications?

Yes. Cummins’ brochure lists industrial applications as well as construction, agriculture, hotels, healthcare, residential/light commercial and public infrastructure.

Where can I buy a Cummins 250 kVA generator in India?

Cummins provides a dealer locator and request-a-quote facility through its official website. Buyers should verify the supplier’s authorised-dealer status and obtain the exact model documentation before placing an order.

Final Verdict

The Cummins C275D5I is an important model to consider when researching a Cummins generator 250 kVA because Cummins currently lists it in the L8.9 I-Range at 250 kVA / 200 kW Prime and 275 kVA / 220 kW Standby at 50 Hz. It uses the 6LTAA8.9-G4 diesel engine and includes features such as an integrated fuel tank, advanced controller, sound-attenuated enclosure and higher ambient cooling capability.

For buyers researching the Cummins 250 kVA generator price in India, the most important lesson is that there is no single universal price. Different Cummins models and configurations can appear under the same “250 kVA” search term, and quotations may include very different equipment and services.

Similarly, fuel consumption, fuel-tank capacity, dimensions and engine oil capacity should be checked against the exact model documentation, rather than copied from an unrelated 250 kVA Cummins listing.

For the C275D5I specifically, the strongest verified data available from Cummins is its 250 kVA Prime / 275 kVA Standby rating, 6LTAA8.9-G4 engine, 8.8-litre displacement and L8.9 I-Range configuration.

When requesting a quotation, always ask the supplier to identify the exact model, engine, ratings, fuel consumption, tank capacity, dimensions, accessories, compliance documentation, installation scope and warranty. That is the best way to compare the true cost of a Cummins 250 kVA DG set.