Excel Power XL-DB-550 | 500kVA Silent Diesel Generator | 400V Three Phase | 1500RPM

The Excel Power XL-DB-550 500kVA Silent Diesel Generator is a powerful, heavy-duty three-phase generating set designed to deliver dependable electricity for large commercial, industrial and standby power applications. Engineered for demanding professional environments, this high-capacity 1500RPM diesel generator combines a robust Baudouin diesel engine, industrial-grade Depco alternator and advanced Deep Sea Electronics control technology to provide reliable power when it matters most.

Delivering 500kVA (400kW) prime power and 550kVA (440kW) standby power, the XL-DB-550 is an excellent choice for manufacturing facilities, industrial premises, distribution centres, large commercial buildings and critical backup power installations requiring substantial electrical capacity.

Featuring a generous 900-litre integrated diesel fuel tank, Deep Sea Electronics DSE6120 digital control panel and sound-attenuated acoustic enclosure with a stated noise level of 72dB(A) at 7 metres, this professional diesel generator offers an excellent combination of high-capacity performance, operational convenience and long-term durability.

Powerful 500kVA Three-Phase Diesel Generator

At the heart of the Excel Power XL-DB-550 is a heavy-duty Baudouin 6M21G550/5 six-cylinder diesel engine, operating at a consistent 1500RPM to produce 400V three-phase electricity at 50Hz.

The 12.54-litre turbocharged and aftercooled diesel engine features electronic governing and an efficient water-cooling system, delivering dependable performance for demanding electrical loads.

The XL-DB-550 offers two power ratings to accommodate different operating requirements:

• Prime Power – 500kVA / 400kW: Designed for applications requiring a primary electricity supply under variable operating loads, subject to the generator's rated operating conditions and applicable emissions requirements.

• Standby Power – 550kVA / 440kW: Provides additional generating capacity for emergency backup applications when the main electricity supply becomes unavailable.

Whether supplying electricity to industrial machinery, manufacturing facilities, commercial premises or essential business infrastructure, the XL-DB-550 provides a robust solution for substantial three-phase electricity requirements.

Heavy-Duty Baudouin Diesel Engine

Powered by the renowned Baudouin 6M21G550/5 diesel engine, the Excel Power XL-DB-550 has been engineered for professional generating applications where strength, durability and dependable performance are essential.

The six-cylinder, 12.54-litre engine features a turbocharged and aftercooled configuration, electronic engine management and water cooling to maintain controlled operating temperatures during demanding operation.

Operating at 1500RPM, the engine runs at a lower speed than conventional 3000RPM portable generators, making it particularly suited to larger industrial generating applications.

The engine delivers a specified 450kW gross prime mechanical power rating, with a gross standby mechanical rating of 490kW, providing the mechanical capacity required to support the generator's substantial electrical output.

Combined with heavy-duty generator construction and a matched industrial alternator, the Baudouin engine provides a dependable foundation for large commercial and industrial power systems.

High-Performance Depco Alternator with Automatic Voltage Regulation

The Excel Power XL-DB-550 is equipped with a Depco DPC354D alternator, designed to deliver stable three-phase electrical output for demanding industrial and commercial applications.

Featuring Class H insulation, IP23 ingress protection and a shunt excitation system, the alternator is engineered for professional generating installations.

Its integrated Automatic Voltage Regulator (AVR) provides a specified voltage regulation accuracy of ±1%, helping maintain consistent electrical output as operating loads change.

This makes the generator a practical solution for appropriately specified industrial machinery, commercial electrical installations and equipment requiring dependable three-phase electricity.

For installations involving particularly sensitive electronics, demanding motor-starting loads or specialist industrial equipment, additional electrical assessment may be required to ensure the generator is correctly sized and configured.

Advanced Deep Sea Electronics DSE6120 Digital Control Panel

The XL-DB-550 features the Deep Sea Electronics DSE6120 digital generator controller, providing an intuitive interface for monitoring and managing generator operation.

The control system offers essential engine and electrical monitoring functions, helping operators view operating conditions and identify potential faults.

Key monitoring and control capabilities include:

• Generator voltage and frequency monitoring

• Engine operating status and running hours

• Engine temperature and oil pressure monitoring, where supported by fitted sensors

• Battery voltage monitoring

• Engine protection and fault alarms

• Automatic mains failure control functionality

• Compatibility with suitable external switching equipment

For customers requiring automated backup electricity, the XL-DB-550 can be configured with an optional Automatic Transfer Switch (ATS).

When correctly installed, an ATS arrangement allows the generator to start following a mains electricity failure and automatically transfer connected electrical loads once suitable generator output is available.

For critical installations requiring uninterrupted electricity, an appropriately designed UPS or equivalent system may also be necessary during the generator start-up and changeover period.

Sound-Attenuated Acoustic Canopy – 72dB(A) at 7 Metres

Despite its substantial 500kVA prime power output, the Excel Power XL-DB-550 Silent Diesel Generator features a sound-attenuated acoustic enclosure designed to reduce operating noise.

With a stated noise level of 72dB(A) at 7 metres under free-field conditions, the generator offers a practical solution for commercial and industrial installations where noise management is an important consideration.

The heavy-duty acoustic enclosure helps protect the internal generating equipment while providing durable construction for professional operating environments.

For installations with more demanding acoustic requirements, optional ultra-low-noise canopy configurations may be available.

Final acoustic suitability should be assessed against the proposed installation location, operating conditions and any applicable planning or noise restrictions.

High-Capacity 900-Litre Diesel Fuel Tank

The Excel Power XL-DB-550 features a generous 900-litre integrated diesel fuel tank, providing substantial on-board fuel storage for industrial power generation and commercial standby applications.

With a stated fuel consumption of approximately 109.5 litres per hour at 100% prime load, the generator offers a practical combination of substantial electrical output and high-capacity fuel storage.

Based on these published figures, the total tank capacity represents approximately 8.2 hours of theoretical operating time at full prime load.

Actual usable running time will depend on the electrical load, usable fuel capacity, reserve requirements, ambient conditions and generator operating configuration.

The large fuel tank helps reduce the frequency of refuelling during extended mains electricity failures, making the XL-DB-550 a practical choice for businesses requiring dependable emergency power.

For installations requiring additional fuel autonomy, optional external fuel tank connections and three-way fuel valves may be specified, allowing integration with suitable external diesel storage systems.

Optional Upgrades & Custom Generator Configurations

Every commercial and industrial installation has different power requirements. The Excel Power XL-DB-550 can be configured with a range of optional equipment to accommodate specific electrical, acoustic and operating requirements.

Available options include:

• Automatic Transfer Switch (ATS): Enables automatic generator starting and changeover following mains electricity failures when correctly installed.

• External Fuel Tank Connections: Optional three-way fuel valves for integration with suitable external diesel storage tanks.

• Control Panel Upgrades: Additional monitoring, control and communications options for specialist installations.

• Ultra-Low-Noise Canopy: Enhanced acoustic configurations for locations with more restrictive noise requirements.

• AREP Alternator Configuration: Optional auxiliary winding arrangement for applications requiring improved performance with certain demanding electrical loads.

• Socket Outlet Options: Alternative electrical output connections, subject to the required specification.

Please contact our team to discuss the most suitable generator configuration for your installation.

Ideal Applications

The Excel Power XL-DB-550 500kVA Diesel Generator is suitable for a wide range of commercial, industrial and specialist power applications, including:

• Commercial standby power installations

• Large manufacturing facilities and industrial plants

• Warehouses and distribution centres

• Agricultural operations and rural estates

• Large commercial buildings and business premises

• Factories and production facilities

• Industrial machinery and manufacturing equipment

• Emergency backup electricity systems

• Commercial refrigeration and cold-storage facilities

• Large retail and logistics facilities

• Critical business infrastructure

• Facilities management and industrial maintenance

• Remote industrial installations, where permitted

• Appropriately engineered backup systems for data centres and other critical facilities

Its combination of high-capacity three-phase output, dependable Baudouin diesel engine technology and intelligent generator controls makes the XL-DB-550 an excellent choice for substantial professional electricity requirements.

Key Features & Benefits

• Excel Power XL-DB-550 500kVA Silent Diesel Generator

• 500kVA / 400kW Prime Power

• 550kVA / 440kW Standby Power

• Heavy-duty 1500RPM diesel engine

• 400V / 230V three-phase output at 50Hz

• Baudouin 6M21G550/5 diesel engine

• Six-cylinder, 12.54-litre configuration

• Turbocharged and aftercooled engine design

• Electronic engine governing

• Water-cooled engine

• 450kW gross prime mechanical engine power

• Depco DPC354D alternator

• Automatic Voltage Regulation (AVR)

• Specified voltage regulation of ±1%

• Class H alternator insulation

• IP23 alternator protection

• Deep Sea Electronics DSE6120 digital control panel

• 900-litre integrated diesel fuel tank

• Published fuel consumption of 109.5L/hr at 100% prime load

• Sound-attenuated acoustic enclosure

• Noise rating of 72dB(A) at 7 metres

• Heavy-duty industrial construction

• Optional Automatic Transfer Switch (ATS)

• Optional external fuel tank connections

• Hard-wired electrical output as standard

• Optional socket outlet configurations

• Suitable for appropriately specified prime and standby power applications

• Standard 12-month / 1,000-hour limited warranty, subject to manufacturer terms

Manufacturer Warranty & Support

The Excel Power XL-DB-550 is advertised with a standard 12-month or 1,000-hour limited warranty, whichever occurs first, subject to the manufacturer's current terms and conditions.

Professional commissioning is required under the supplied warranty conditions. Installation and commissioning must be undertaken by an authorised Excel Power dealer or a competent independent generator engineer, with appropriate commissioning documentation issued.

An extended 24-month / 2,000-hour limited warranty may also be available through an eligible servicing agreement established at the time of commissioning.

Extended warranty arrangements are subject to the manufacturer's servicing and maintenance requirements, including periodic inspections and scheduled servicing appropriate to the generator's application.

At Power-Generator.uk, our team can assist with generator selection, technical enquiries, optional accessories and delivery arrangements.

Order Your Excel Power 500kVA Diesel Generator

At Power-Generator.uk, we specialise in supplying reliable diesel generators, commercial standby power solutions and industrial generating equipment throughout the UK.

Whether you're looking for a dependable 500kVA diesel generator for commercial backup power, a high-capacity three-phase generator for industrial machinery or a permanent standby installation with automatic mains failure protection, the Excel Power XL-DB-550 provides a powerful and versatile solution.

Contact Power-Generator.uk today for competitive pricing, expert product advice and UK delivery options on the Excel Power XL-DB-550 500kVA Silent Diesel Generator.