What configurations of 40 kVA generators do you offer?

We offer 40 kVA generators exclusively in silent canopied configurations with 3 phase output. Every model in this category operates at 50Hz and uses diesel fuel.

What is the typical 40 kVA generator price?

The rough price for a generator in this category is approximately £10,000 excluding VAT. The exact 40 kVA generator price depends on the model, specification, stock availability and any optional equipment required. Delivery and export costs are calculated separately according to the destination.

What is 40 kVA in kW?

At a standard power factor of 0.8, 40 kVA is equivalent to 32 kW. The conversion is: 40 kVA × 0.8 power factor = 32 kW The actual usable load will also depend on the generator rating, operating conditions and characteristics of the connected equipment.

How many amps does a 40 kVA generator produce?

A 40 kVA 3 phase generator operating at 400V produces approximately 57.7A at full rated output. The available current will differ at other voltages, so the electrical specification should always be checked before installation.

What is the fuel consumption of a 40 kVA diesel generator?

The precise 40 kVA diesel generator fuel consumption depends on the model, load level and operating conditions. As a general guide, consumption may be around 10 litres per hour at full load. Refer to the individual technical data sheet for model-specific figures at different load percentages.

What are the typical 40 kVA generator dimensions?

Dimensions vary between models, but a typical canopied unit may measure approximately 2,300mm long, 1,000mm wide and 1,900mm high. Allow additional space for airflow, exhaust clearance, servicing and safe access when planning the installation.

How much does a 40 kVA generator weigh?

Weight depends on the exact model and specification. As a guide, a canopied set may weigh around 1,200kg dry and approximately 1,400kg wet. Wet weights include operating fluids such as oil and coolant, but not fuel.

What can a 40 kVA generator power?

A 40 kVA diesel generator can typically support selected commercial premises, workshops, agricultural equipment, site facilities, pumps, motors, lighting and essential building circuits. The exact equipment it can power depends on the total running load, motor starting currents and whether several items may start simultaneously. A professional load assessment is recommended before purchase. This helps ensure sufficient capacity without selecting a set that is excessively oversized for its normal operating load.

40 kVA Diesel Generators for Sale UK

Reliable 40 kVA Power Solutions

A 40 kVA generator provides a practical balance of power, efficiency and manageable dimensions. It can support commercial premises, construction sites, farms, workshops and smaller industrial facilities, either as a primary source of electricity or during a mains failure.

Global Generators supplies brand-new diesel generators from the UK for fast domestic delivery and efficient global export. As an authorised Cummins CPG reseller, we offer competitive UK pricing on genuine Cummins generators, backed by a team with more than 50 years of combined experience in power generation.

Our 40 kVA generators use proven Cummins diesel engine technology paired with a Stamford alternator. This combination delivers dependable performance for demanding applications, with parts and technical support available through established international networks.

Silent Canopied Generators

Each 40 kVA silent generator in our range is housed inside a protective acoustic canopy. The enclosure reduces operational noise while shielding essential components from weather, dust and accidental contact.

A 40 kVA silent diesel generator is well suited to locations where noise must be controlled, including offices, retail premises, residential developments and sites near occupied buildings. Canopied sets are also easier to position outdoors than open units, although appropriate ventilation, exhaust clearance and access for maintenance remain essential.

The heavy duty enclosure incorporates service access doors, while the integrated base generally contains the fuel tank. Always check the individual product specification for tank capacity, expected runtime and any site-specific installation requirements.

3 Phase Power for Commercial and Industrial Loads

All models in this category are 3 phase generators. A 40 kVA 3 phase generator is commonly selected for workshops, farms and commercial buildings with three phase electrical systems. It can supply balanced loads such as motors, pumps, machinery and heating or ventilation equipment when correctly sized.

For applications where diesel is preferred for durability and runtime, a 40 kVA 3 phase diesel generator provides a robust source of standby or prime power. The correct specification will depend on starting currents, load balance and whether the connected equipment operates continuously or intermittently.

A 40 kVA 3 phase genset may also form part of a wider backup system that includes an automatic transfer switch. When a mains failure is detected, the transfer equipment can start the generator and move the connected load automatically.

For buyers comparing industrial terminology, a 40 kVA 3 phase diesel genset refers to the complete generating set. This includes the engine, alternator, control system, cooling equipment and supporting structure.

Three phase output is widely used for commercial and industrial applications because it can distribute power efficiently across multiple circuits. Loads should be balanced as evenly as possible between the phases to support stable performance and make effective use of the generator’s available capacity.

Standby and Prime Power Applications

The required rating depends on how the generator will operate. A standby generator supplies emergency power during a failure of the normal mains source. Prime power applies when the set operates as the main electricity source for extended periods under a varying load, subject to the manufacturer’s rating conditions.

A 40 kVA genset can be used for building backup, agricultural equipment, site compounds, telecommunications infrastructure and light manufacturing. It may also support temporary power requirements at events or construction projects, provided the expected load and operating conditions are assessed correctly.

A suitable 40 kVA diesel genset can help maintain critical operations during an outage. Applications requiring genuinely uninterrupted power, such as certain healthcare systems or data centres, will normally need a UPS alongside the generator. The UPS covers the short period before the engine starts and the load transfers.

Where mobility is required, compatibility with an appropriate road tow trailer can be considered. The trailer, towing arrangement, braking system and total operating weight must comply with applicable local regulations.

Controls, Protection and Fuel Efficiency

The generator’s control panel allows operators to monitor operating data and system status. Depending on the model, displayed information may include voltage, frequency, engine speed, coolant temperature, battery condition and oil pressure. Protective shutdowns help reduce the risk of damage when abnormal conditions are detected.

All models in this category operate at 50Hz and are intended for compatible three phase electrical systems. Buyers exporting equipment should confirm the destination voltage and frequency before placing an order.

Fuel consumption varies with the precise model and connected load. A generator working at 75% load will normally consume less fuel per hour than it does at full output. However, efficiency should be considered alongside runtime, tank capacity and the expected load profile rather than hourly consumption alone.

Global Generators can help you compare the available generators, understand their ratings and identify the most appropriate specification. If your requirement sits near the limits of this category, it may also be helpful to compare 30 kVA generators and 50 kVA generators.

Frequently Asked Questions

Reserve Your 40 kVA Generator

Contact our experts today for more information about our range of 40 kVA generators or to reserve your preferred model. Speak with us by phone, WhatsApp or email, or submit our online for help choosing the right generator for your application, delivery location and power requirements.