
Excel Power XL-DB-350 | 280kW Silent Diesel Generator | 400V Three Phase | 1500RPM
SKU: XL-DB-350
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Excel Power XL-DB-350 | 350kVA Silent Diesel Generator | 400V Three Phase | 1500RPM
The Excel Power XL-DB-350 350kVA Silent Diesel Generator is a powerful, heavy-duty three-phase generating set designed to deliver reliable standby electricity for demanding commercial, industrial and large-scale backup power applications. Engineered for professional installations, this high-capacity 1500RPM diesel generator combines a dependable Baudouin diesel engine, industrial-grade Depco alternator and advanced Deep Sea Electronics control technology to provide a robust and reliable power solution.
Delivering 350kVA (280kW) standby power, with a published reference prime rating of 320kVA (256kW), the XL-DB-350 is particularly well suited to manufacturing facilities, warehouses, commercial properties, agricultural operations and industrial premises requiring substantial backup electricity capacity.
Featuring a generous 580-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 commercial diesel generator offers an excellent combination of power, durability and operational convenience.
Powerful 350kVA Three-Phase Diesel Generator
At the heart of the Excel Power XL-DB-350 is a heavy-duty Baudouin 6M16G350/5 six-cylinder diesel engine, operating at a consistent 1500RPM to produce 400V three-phase electricity at 50Hz.
The 9.726-litre turbocharged diesel engine features electronic governing and a water-cooling system, delivering dependable performance for demanding electrical loads.
The XL-DB-350 features the following published electrical ratings:
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Standby Power – 350kVA / 280kW: Designed to provide substantial generating capacity during emergency mains electricity failures, making it suitable for industrial premises, commercial buildings and critical business operations.
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Reference Prime Power – 320kVA / 256kW: A published reference output rating. Suitability for extended prime-power operation must be confirmed with the supplier, as the Baudouin engine is specified primarily for emergency standby applications.
Whether supplying backup electricity to industrial machinery, large commercial facilities or essential building services, the XL-DB-350 provides a high-capacity three-phase power solution for demanding professional installations.
Heavy-Duty Baudouin Diesel Engine
Powered by the renowned Baudouin 6M16G350/5 diesel engine, the Excel Power XL-DB-350 has been engineered for professional generating applications where durability, dependable performance and reliable emergency power are essential.
The six-cylinder, 9.726-litre engine features a turbocharged and aftercooled configuration, electronic governing and water cooling to maintain controlled operating conditions.
Operating at 1500RPM, the engine runs at a lower speed than conventional 3000RPM portable generators, making it particularly well suited to large industrial standby generating installations.
The engine provides a specified 291kW gross reference prime mechanical power rating, with higher mechanical output available under its emergency standby rating.
The robust engine construction and industrial generating arrangement provide a dependable foundation for commercial backup electricity systems.
High-Performance Depco Alternator with Automatic Voltage Regulation
The Excel Power XL-DB-350 is equipped with a Depco DPC314E alternator, designed to deliver stable three-phase electrical output for professional industrial and commercial applications.
Featuring Class H insulation, IP23 ingress protection and a shunt excitation system, the alternator is engineered for demanding generating applications.
Its Automatic Voltage Regulator (AVR) provides a specified voltage regulation accuracy of ±1%, helping maintain consistent electrical output as operating loads change.
The alternator provides a practical solution for supplying appropriately specified industrial machinery, commercial electrical systems and essential building equipment.
For applications involving particularly sensitive electronics, specialist equipment or demanding motor-starting loads, additional electrical assessment may be necessary to ensure the installation is correctly configured.
Advanced Deep Sea Electronics DSE6120 Control Panel
The XL-DB-350 features the Deep Sea Electronics DSE6120 digital generator controller, providing a convenient interface for monitoring and managing generator operation.
The controller supports important engine and electrical monitoring functions, helping operators monitor operating conditions and identify potential faults.
Features include:
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Engine operating information and monitoring
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Generator voltage and frequency monitoring
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Engine protection and fault warnings
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Operating hours and status information
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Automatic mains failure control functionality
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Compatibility with suitable external switching equipment
When configured with an appropriate Automatic Transfer Switch (ATS), the generator can form part of an automatic backup power system designed to respond to mains electricity failures.
The generator and changeover equipment must be correctly installed and commissioned by a competent electrical professional. Automatic changeover normally involves a brief interruption while the generator starts and the load transfers.
Sound-Attenuated Acoustic Canopy – 72dB(A) at 7 Metres
Despite its substantial 350kVA standby output, the Excel Power XL-DB-350 Silent Diesel Generator features a sound-attenuated acoustic enclosure designed to reduce operating noise.
With a specified noise level of 72dB(A) at 7 metres under free-field conditions, the generator is a practical choice for commercial and industrial installations where noise management is an important consideration.
The heavy-duty enclosure provides protection for the internal generating equipment, while its robust construction is designed for long-term professional use.
For installations with more demanding acoustic requirements, optional ultra-low-noise canopy configurations may be available.
Final suitability for noise-sensitive sites should be assessed against local requirements and the proposed installation layout.
High-Capacity 580-Litre Diesel Fuel Tank
The Excel Power XL-DB-350 features a generous 580-litre integrated diesel fuel tank, providing substantial on-board fuel storage for emergency standby power applications.
With a stated fuel consumption of approximately 70.5 litres per hour at 100% load, the generator offers convenient fuel storage for demanding operating requirements.
Based on the published figures, the total tank capacity represents approximately 8.2 hours of theoretical running time at the stated full-load consumption rate.
Actual usable running time will depend on fuel reserve requirements, electrical loading, environmental conditions and the final installation.
For customers requiring extended backup operation, optional external fuel tank connections and three-way fuel valves may be specified, allowing integration with suitable additional diesel storage systems.
Optional Upgrades & Custom Generator Configurations
Every commercial and industrial installation has different power requirements. The Excel Power XL-DB-350 can be configured with additional equipment to suit specific site applications.
Available options include:
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Automatic Transfer Switch (ATS): Enables automatic changeover between the mains supply and generator electricity when correctly installed and configured.
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External Fuel Tank Connections: Optional three-way valves for integration with suitable external diesel storage tanks.
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Control Panel Upgrades: Additional monitoring, control and remote communications options for specialist installations.
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Ultra-Low-Noise Canopy: Enhanced acoustic configurations for installations with stricter noise requirements.
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AREP Alternator Configuration: Optional alternator arrangement offering improved performance for certain challenging electrical loads.
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Socket Outlet Options: Alternative electrical output connections, subject to the required configuration and available specifications.
Please contact our team to discuss the most suitable generator configuration for your installation.
Ideal Applications
The Excel Power XL-DB-350 350kVA Diesel Generator is designed for a wide range of commercial, industrial and specialist standby power applications, including:
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Commercial standby power installations
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Manufacturing facilities and industrial premises
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Warehouses and large distribution centres
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Agricultural operations and rural estates
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Commercial buildings and business premises
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Factories and production facilities
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Industrial machinery and electrical equipment
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Emergency backup electricity systems
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Large commercial properties
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Critical business infrastructure
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Facilities management and industrial maintenance
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Appropriately engineered backup systems for data centres and other critical premises
Its combination of high-capacity three-phase output, dependable Baudouin engine technology and intelligent generator control makes the XL-DB-350 a strong choice for demanding professional standby power requirements.
Key Features & Benefits
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Excel Power XL-DB-350 350kVA Silent Diesel Generator
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350kVA / 280kW Standby Power
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320kVA / 256kW Reference Prime Power
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Heavy-duty 1500RPM diesel engine
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400V / 230V three-phase output at 50Hz
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Baudouin 6M16G350/5 diesel engine
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Six-cylinder, 9.726-litre configuration
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Turbocharged engine with aftercooling
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Electronic engine governing
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Water-cooled engine
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Depco DPC314E alternator
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Automatic Voltage Regulation (AVR)
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Specified voltage regulation of ±1%
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Class H alternator insulation
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IP23 alternator protection
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Deep Sea Electronics DSE6120 digital control panel
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580-litre integrated diesel fuel tank
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Published fuel consumption of 70.5L/hr at 100% load
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Sound-attenuated acoustic enclosure
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Noise rating of 72dB(A) at 7 metres
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Heavy-duty industrial construction
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Optional Automatic Transfer Switch (ATS)
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Optional external fuel tank connections
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Optional control and acoustic upgrades
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Hard-wired electrical output as standard
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Optional socket outlet configurations
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Designed primarily for industrial standby power applications
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Standard 12-month / 1,000-hour limited warranty, subject to manufacturer terms
Manufacturer Warranty & Support
The Excel Power XL-DB-350 is advertised with a standard 12-month or 1,000-hour limited warranty, whichever occurs first, subject to the manufacturer's terms and conditions.
Professional commissioning is required under the supplied warranty conditions. Initial installation and commissioning must be undertaken by an authorised Excel Power dealer or a competent independent generator engineer, with appropriate commissioning documentation provided.
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 current service requirements, including periodic inspections and scheduled maintenance.
At Power-Generator.uk, our team can assist with generator selection, technical enquiries, optional accessories and delivery arrangements.
Order Your Excel Power 350kVA 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 350kVA diesel generator for commercial backup power, a high-capacity three-phase generator for industrial facilities or a permanent standby installation with automatic mains failure protection, the Excel Power XL-DB-350 provides a robust and versatile solution.
Contact Power-Generator.uk today for competitive pricing, expert product advice and UK delivery options on the Excel Power XL-DB-350 350kVA Silent Diesel Generator.
Delivery & Returns
Fast UK delivery
Fast delivery on orders placed before 1pm (working days). Scotland, Scottish Highlands, islands and offshore destinations may take a little longer — call 0800 222 9069 for a quote.
Easy 30-day returns
Not right for the job? Return unused items in their original condition and packaging within 30 days for a refund or exchange. See our Returns & Refunds policy for full details.
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