Excel Power XL-DK-22S | 22kW Silent Diesel Generator | 230V Single Phase | 1500RPM

Excel Power XL-DK-22S | 20kW Silent Diesel Generator | 230V Single Phase | 1500RPM

The Excel Power XL-DK-22S 20kVA Single Phase Diesel Generator is a powerful, reliable and professionally engineered generator designed to provide dependable electricity for larger homes, commercial premises, agricultural properties and off-grid installations.

Delivering an impressive 20kW prime power and 22kW standby power, this heavy-duty diesel generator combines a robust DEPCO water-cooled engine, high-performance alternator and low-speed 1500RPM operation to provide dependable electricity during mains power failures or where a permanent power supply is unavailable.

Built with reliability and durability in mind, the XL-DK-22S features an acoustic weather-resistant canopy, automatic voltage regulation and an advanced digital control system.

Its 230V single-phase output makes it particularly suitable for UK properties and businesses requiring substantial backup power without a three-phase electrical installation.

Whether you're protecting your home against power cuts, maintaining essential business operations or supplying electricity to a remote location, the Excel Power XL-DK-22S offers an excellent combination of power, performance and long-term reliability.

Key Features & Benefits

• 20kW Prime / 22kW 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 designed for durability and dependable performance.

• DEPCO Water-Cooled Engine – Heavy-duty four-cylinder diesel engine with effective temperature management.

• Acoustic Soundproof Canopy – Reduced operational noise of approximately 70dB(A) at 7 metres.

• Automatic Voltage Regulation (AVR) – Maintains voltage regulation within ±1%.

• Electric Starting System – Convenient starting and operation.

• 43-Litre Diesel Fuel Tank – Integrated fuel storage for practical standby operation.

• Datakom Digital Control Panel – Essential monitoring and generator protection functions.

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

• Heavy-Duty Construction – Robust enclosure and base frame designed for demanding environments.

• UK Technical Support – Supported by Excel Power's UK service network.

Reliable Home Backup Power for Larger Properties

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

The Excel Power XL-DK-22S home backup diesel generator provides a dependable solution for properties requiring a substantial standby electricity supply.

With up to 22kW of standby power, it can support a wide range of domestic appliances and electrical systems, subject to the property's maximum demand, start-up requirements and installation design.

Typical applications include:

• Large residential properties and country homes

• Rural properties with unreliable mains electricity

• Home offices and remote working installations

• Heating, refrigeration and essential domestic systems

• Commercial buildings and retail premises

• Agricultural and remote installations

When installed with a compatible Automatic Transfer Switch (ATS), the generator can form part of an automatic mains-failure backup system.

This allows the generator to start and supply connected circuits following a mains power failure, with the appropriate transfer equipment safely isolating the property from the electricity network.

Heavy-Duty DEPCO Water-Cooled Diesel Engine

At the heart of the Excel Power XL-DK-22S is the reliable DEPCO-4R95 four-cylinder diesel engine.

Designed for demanding applications, this 2.836-litre water-cooled engine operates at a steady 1500RPM, providing dependable mechanical power for the generator's alternator.

The low-speed engine design is particularly well suited to fixed standby installations and appropriately rated prime-power applications.

Its water-cooling system helps maintain consistent engine operating temperatures, while the heavy-duty mechanical construction supports long-term reliability.

Stable Electricity with Automatic Voltage Regulation

The XL-DK-22S incorporates a high-quality DEPCO-20-1 alternator, designed to deliver reliable single-phase electrical output.

Featuring automatic voltage regulation with a specified accuracy of ±1%, the generator helps maintain a consistent voltage under changing electrical loads.

This makes it suitable for a wide range of household appliances, commercial equipment and electrical installations.

Where particularly sensitive electronic equipment is being connected, additional UPS protection or power conditioning may be recommended.

Acoustic Canopy for Reduced Noise

Despite its substantial power output, the Excel Power XL-DK-22S is designed to minimise operating noise.

Its close-fitting acoustic canopy incorporates sound-reducing materials and a robust weather-resistant enclosure.

With a published noise rating of approximately 70dB(A) at 7 metres, this generator offers reduced noise emissions compared with many open-frame alternatives of similar output.

The protective enclosure also helps shield internal mechanical and electrical components from environmental conditions.

As with all fixed diesel generators, installation location, ventilation and local noise requirements should be considered before purchase.

43-Litre Diesel Fuel Tank

The Excel Power XL-DK-22S features an integrated 43-litre diesel fuel tank, providing convenient fuel storage for standby and prime-power applications.

Manufacturer-listed fuel consumption at full load is approximately 7.1 litres per hour, with actual consumption varying according to electrical demand and operating conditions.

For installations requiring longer operating periods without refuelling, external fuel tank arrangements may be available.

Datakom Digital Control System

The generator features a Datakom digital control panel, providing an accessible interface for generator operation and monitoring.

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

• Generator voltage and frequency

• Engine operating information

• Oil pressure and engine temperature

• Operating hours

• Generator alarms and fault indications

• Automatic shutdown protection

• Integration with compatible standby control equipment

This makes the XL-DK-22S suitable for professionally designed backup power installations where reliability and operational monitoring are essential.

Optional Upgrades & Accessories

The Excel Power XL-DK-22S can be configured with additional equipment to suit specific applications.

Available options may include:

• Automatic Transfer Switch (ATS) – For automatic mains-failure backup operation.

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

• Battery Charger – Maintains starter battery charge while the generator is in standby.

• Coolant Heater – Helps prepare the engine for starting in colder environments.

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

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

• Control Panel Upgrades – Optional enhanced monitoring and control functions.

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

• Output Socket Options – Alternative connection configurations where available.

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

Important Installation Information

Please note: The Excel Power XL-DK-22S is supplied dry and requires the correct engine oil and coolant before first use.

The generator is designed primarily for hard-wired electrical connections, with output socket options potentially available.

A qualified professional must assess the electrical installation, earthing, changeover arrangements, generator capacity and commissioning requirements.

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

Correct ventilation, exhaust management and safe operating clearances are essential.

Manufacturer Warranty & Commissioning

Excel Power 1500RPM diesel generators are supplied with a limited manufacturer warranty, subject to the applicable conditions 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 and appropriate supporting documentation are required.

Mandatory Commissioning

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

A formal commissioning certificate should be issued and retained as evidence that the generator has been installed and commissioned correctly.

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

Extended Warranty Option

An extended warranty of up to 24 months or 2,000 operating hours may be available, subject to Excel Power's current terms and an eligible maintenance agreement.

The supplied warranty conditions specify that the agreement must commence from initial commissioning and include the required servicing schedule.

For standby applications, this typically involves approximately six-monthly maintenance visits.

For prime-power applications, servicing requirements may be based on operating hours, including oil-change intervals.

Please contact Leader Pro for confirmation of current warranty coverage and extended service options.

Why Buy from Power-Generator.uk?

At Power-Generator.uk, part of Leader Pro Ltd, we specialise in supplying high-quality diesel, petrol and inverter generators for domestic, commercial and professional applications throughout the UK.

Our team understands the importance of selecting the correct generator, particularly when designing an emergency backup power system.

We can assist with:

• Generator sizing and power requirements

• Home backup generator selection

• Automatic transfer switch compatibility

• Diesel generator accessories

• Commercial and agricultural applications

• General technical product enquiries

Need help choosing the right diesel generator?

Call 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.