Excel Power XL-DK-44S | 44kW Silent Diesel Generator | 230V Single Phase | 1500RPM

Excel Power XL-DK-44S | 40kW Silent Diesel Generator | 230V Single Phase | 1500RPM

The Excel Power XL-DK-44S 40kVA Single Phase Diesel Generator is a powerful, reliable and professionally engineered generator designed to deliver dependable electricity for large residential properties, commercial premises, agricultural facilities and demanding off-grid applications.

Delivering an impressive 40kW prime power and 44kW standby power, this heavy-duty diesel generator combines a robust DEPCO turbocharged diesel engine, high-performance alternator and low-speed 1500RPM operation to provide reliable electricity when mains power is unavailable or unreliable.

Designed for long-term durability, the XL-DK-44S features a sound-attenuated acoustic canopy, automatic voltage regulation, an advanced DATAKOM digital control panel and a substantial 98-litre integrated bunded fuel tank.

With its 230V / 50Hz single-phase output, this generator is particularly suited to UK properties and businesses requiring substantial electrical capacity without a three-phase power supply.

Whether you're protecting a large home against unexpected power cuts, maintaining essential commercial operations or supplying power to a remote installation, the Excel Power XL-DK-44S offers dependable performance and the flexibility to suit demanding power requirements.

Key Features & Benefits

• 40kW Prime / 44kW Standby Power – High-capacity electricity generation for demanding domestic and commercial applications.

• 230V / 50Hz Single Phase – Designed for UK single-phase electrical installations.

• 1500RPM Diesel Engine – Low-speed operation engineered for durability and dependable performance.

• DEPCO Turbocharged Engine – Heavy-duty four-cylinder diesel engine delivering the mechanical power required for high-output electricity generation.

• Water-Cooled Engine – Effective engine temperature management for standby and suitably rated prime-power applications.

• DEPCO Alternator – Reliable electricity generation with automatic voltage regulation.

• 70dB(A) at 7 Metres – Acoustic canopy designed to reduce operating noise.

• AVR Voltage Regulation ±1% – Helps maintain consistent electrical voltage during operation.

• DATAKOM D100 Control Panel – Digital generator monitoring and protection functions.

• 98-Litre Bunded Fuel Tank – Substantial integrated diesel storage with secondary containment.

• Electric Starting System – Convenient engine starting and operation.

• Coolant Heater – Helps support engine readiness in colder conditions.

• Automatic Battery Charger – Helps maintain starter battery charge during standby periods.

• ATS Compatible – Optional automatic transfer switch arrangements for emergency backup installations.

• Heavy-Duty Construction – Robust acoustic enclosure and steel base frame.

High-Capacity Home Backup Power

Unexpected power cuts can disrupt heating, refrigeration, lighting, home offices, security systems and other essential electrical equipment.

The Excel Power XL-DK-44S home backup diesel generator provides a high-capacity solution for larger properties where maintaining an alternative electricity supply is particularly important.

With up to 44kW standby power, this single-phase generator can support substantial electrical demands, subject to correct load assessment and professional installation.

Typical applications include:

• Large residential properties and country estates

• Rural homes with unreliable mains electricity

• Commercial offices and retail premises

• Agricultural buildings and remote properties

• Refrigeration and essential business equipment

• Professional workshops and fixed site installations

• Off-grid properties requiring a high-capacity power source

When installed with a compatible Automatic Transfer Switch (ATS), the XL-DK-44S can form part of an automatic emergency backup power system.

In the event of a mains electricity failure, the control and transfer equipment can start the generator and supply the connected electrical circuits once the generator is ready.

This provides a practical standby solution for properties and businesses where electricity supply interruptions can be costly or inconvenient.

Heavy-Duty DEPCO Turbocharged Diesel Engine

At the heart of the XL-DK-44S is the DEPCO 38DTDJ52 four-cylinder turbocharged diesel engine, designed to provide dependable mechanical performance.

With a displacement of 3.76 litres, the engine operates at a steady 1500RPM and uses a water-cooled system to help maintain appropriate operating temperatures.

Its turbocharged design supports the power requirements of the generator, while the mechanical governing system regulates engine speed.

The engine and alternator are mounted on heavy-duty anti-vibration mounts, helping reduce vibration transmission to the generator's base frame.

This design makes the XL-DK-44S suitable for demanding fixed installations requiring reliable power generation.

Stable Electrical Output with Automatic Voltage Regulation

The Excel Power XL-DK-44S incorporates a DEPCO-40-1 alternator equipped with automatic voltage regulation.

The AVR maintains voltage regulation within the manufacturer's specified ±1% tolerance, helping deliver consistent electrical output under varying operating conditions.

This makes the generator suitable for many residential, commercial and industrial electrical applications.

For particularly sensitive electronics, such as specialist IT equipment, servers and precision electrical systems, additional UPS protection or power conditioning may be recommended.

Acoustic Canopy – 70dB(A) at 7 Metres

Despite its substantial output, the Excel Power XL-DK-44S incorporates a sound-attenuated acoustic canopy designed to reduce operating noise.

The generator has a published noise rating of 70dB(A) at 7 metres under free-field conditions.

Its protective enclosure helps reduce noise emissions and provides a robust housing for the generator's mechanical and electrical components.

This makes the XL-DK-44S suitable for consideration in residential, agricultural and commercial installations where noise reduction is important.

The final installation must account for local noise restrictions, ventilation, exhaust discharge and appropriate operating clearances.

98-Litre Bunded Diesel Fuel Tank

The XL-DK-44S features a substantial 98-litre integrated bunded fuel tank, providing onboard diesel storage for standby and prime-power operation.

The bunded construction incorporates secondary fuel containment, helping manage the risk of fuel leakage.

The generous tank capacity supports practical operation without constant refuelling.

Actual runtime will depend on the connected electrical load, fuel consumption and operating conditions.

For locations requiring extended operating periods, optional external fuel storage arrangements may be available.

DATAKOM D100 Digital Control Panel

The DATAKOM D100 control panel provides an accessible interface for generator operation and essential system monitoring.

Depending on the controller configuration, monitoring and protection functions can include:

• Generator voltage and frequency

• Engine operating hours

• Oil pressure and engine temperature

• Electrical operating information

• Fault warnings and alarm indications

• Automatic shutdown protection

• Maintenance and operating information

• Integration with compatible automatic standby equipment

The digital control system makes the XL-DK-44S suitable for professionally installed backup power applications requiring accessible operating information and generator protection.

Coolant Heater & Automatic Battery Charger

For fixed standby generators, maintaining starting readiness is important.

The XL-DK-44S specification includes a coolant heater and automatic battery charger, helping support reliable operation during standby periods.

The coolant heater helps maintain suitable engine temperature in colder environments, supporting starting performance.

The battery charger helps maintain the generator's starting battery when connected to its designated electrical supply.

Both features are particularly valuable for emergency backup installations where the generator may remain unused for extended periods between power failures.

Optional Upgrades & Accessories

The Excel Power XL-DK-44S can be configured with additional accessories to meet specific installation requirements.

Available options may include:

• Automatic Transfer Switch (ATS) – Automatic switching between mains and generator power.

• External Diesel Fuel Tank – Increased fuel storage for extended running periods.

• Three-Way Fuel Valves – For compatible external fuel supply arrangements.

• Ultra-Low-Noise Acoustic Canopy – Additional sound attenuation where required.

• Control Panel Upgrades – Enhanced generator monitoring and control options.

• Alternator Auxiliary Winding (AREP) – Subject to alternator compatibility and availability.

• Output Socket Configurations – Optional socket connections where supported.

Please contact Leader Pro Ltd to confirm accessory compatibility, pricing and availability.

Important Installation Information

Please note: Correct engine oil and coolant levels must be confirmed before the generator is started or commissioned.

The XL-DK-44S is designed primarily for professionally installed power generation systems.

The standard generator connection is hard-wired, with optional output sockets available subject to the required configuration.

Electrical installation, earthing, protection systems, changeover arrangements and commissioning must be carried out by appropriately qualified professionals.

The generator must never be directly connected to a building's electrical installation without correctly designed transfer and protection equipment.

Safe ventilation, exhaust discharge and appropriate operating clearances are essential.

Manufacturer Warranty & Commissioning

Excel Power 1500RPM diesel generators are supplied with a manufacturer's limited warranty, subject to the applicable terms and commissioning requirements.

Standard Manufacturer Warranty

• 12 months or 1,000 operating hours, whichever occurs first.

• Applicable to eligible domestic and commercial installations.

• Professional commissioning is required.

Mandatory Commissioning Requirements

To maintain warranty eligibility, the generator must be commissioned by an authorised Excel Power dealer or a competent independent generator engineer.

A formal commissioning certificate must be issued and retained.

Failure to meet the manufacturer's commissioning requirements may invalidate warranty cover.

Extended Warranty Option

An extended limited warranty of up to 24 months or 2,000 operating hours may be available through an eligible continuous maintenance agreement.

The maintenance contract must commence at the time of commissioning and follow the manufacturer's specified service requirements.

For standby applications, this generally includes approximately six-monthly scheduled servicing.

For prime-power applications, the supplied warranty guidance specifies maintenance at approximately 400-hour operating intervals.

Please contact Leader Pro Ltd to confirm current warranty eligibility and extended service options.

Why Buy from Power-Generator.uk?

At Power-Generator.uk, part of Leader Pro Ltd, we specialise in supplying reliable diesel, petrol and inverter generators for domestic, commercial and professional applications across the United Kingdom.

We understand the importance of selecting the correct generator, particularly when installing a permanent standby power system.

Our team can assist with:

• Home backup generator selection

• Generator sizing and power requirements

• Commercial standby generator enquiries

• Automatic Transfer Switch compatibility

• Diesel generator accessories

• Technical product guidance

Whether you're looking for high-capacity home backup power or a commercial diesel generator, we're here to help you select the right equipment.

Need advice about the Excel Power XL-DK-44S?

Contact our team on 0800 222 9069 or visit www.power-generator.uk.

Leader Pro Ltd – Reliable Power Solutions for Homes and Businesses Across the UK.