Excel Power XL-DC-550 500kVA Diesel Generator

Model Number XL-DC-550

500kVA – 400kW Prime Power / 550kVA – 440kW Standby Power

3-Phase generator 400V – 50HZ

High quality water cooled 1500RPM Cummins diesel engine

High quality Stamford alternator

Deepsea DSE6120 control panel for easy operation

Bunded fuel tank with 8-hour runtime

Find a Dealer

Product Details

The Excel Power XL-DC-550 500kVA Diesel Generator is a cornerstone of the Excel Power Standby Range, engineered to deliver robust performance when mains power fails. Designed for permanent installation in commercial facilities, private residences, hospitals, data centres, and industrial complexes, this 500kVA Genset combines cutting-edge engineering with user-centric features. Whether safeguarding critical operations during outages or serving as a primary power source in off-grid locations, the XL-DC-550 offers unmatched reliability, efficiency, and customisation.

Excel Power XL-DC-550 500kVA Diesel Generator

  • Voltage:400/230V
  • Frequency:50Hz
  • Fuel:Diesel
  • Max Power:550kVA
  • Rated Power:500kVA
  • Starting System:Electric
  • Oil Capacity(L):20.6L

Lifetime UK Support

It is essential that you service and maintain your generators regularly. Excel Power Equipment is fully taken care of in the UK with engineer support— giving you full peace of mind.

Excel Power Support

Key Features

The Excel Power XL-DC-550 shines in both Prime Power and Standby Power scenarios, adapting seamlessly to your energy needs:

  • Prime Power 500kVA / 400kW: Ideal for continuous operation in remote sites or as a primary power source, delivering consistent energy output without performance degradation.
  • Standby Power 550kVA / 440kW: Optimised for emergency backup, providing up to 440kW during grid failures.

Operating at 1500 RPM, this 500kVA Diesel Generator ensures fuel efficiency, reduced mechanical stress, and quieter performance compared to high-speed alternatives.

At its heart, the Excel Power XL-DC-550 integrates industry-leading components for longevity and stability:

  • Heavy-Duty Cummins Water-Cooled Diesel Engine: Renowned for reliability, Cummins’ engine excels under heavy loads and extreme conditions. Water-cooling ensures optimal thermal management, even during prolonged use.
  • Stanford Alternator: Paired with the engine via anti-vibration mounts, this high-efficiency alternator minimises harmonic distortion and voltage fluctuations.
  • Anti-Vibration Mounts: Isolate mechanical vibrations, reducing noise and preventing structural wear.

This synergy guarantees smooth operation and extended service intervals, even in heavy industrial environments.

The Deepsea DSE6120 Control Panel offers intuitive monitoring and control:

  • Real-time diagnostics (voltage, frequency, oil pressure).
  • Configurable alarms and auto-shutdown to prevent damage.
  • Remote monitoring capabilities via USB or network interfaces.

Complementing this is a Fully Sealed Automatic Voltage Regulator (AVR) maintaining voltage within ±1%, critical for protecting sensitive electronics like servers and medical equipment from surges or drops.

Engineered for environments where noise matters:

  • Close-Fitting Acoustic Canopy: Reduces operational noise by up to 75 dB(A), ideal for residential areas or noise-sensitive sites.
  • 960L Bunded Fuel Tank: Offers over an 8-hour runtime at full load (107L/hour), with a secondary containment layer to prevent spills. For extended operation, pair with External Tank Options.

Every XL-DC-550 includes:

  • Coolant Heater: Ensures quick starts in cold climates.
  • Battery Charger: Maintains optimal battery health between uses.
  • 12-Month Warranty or 1000 Hours: Comprehensive coverage reflecting Excel Power’s confidence in durability. Plus expert technical support with service plans available directly from Hampshire Generators.

Tailor your 500kVA Genset to specific needs with:

  • Three-Way Valves: Simplify fuel management between main and external tanks.
  • Control Panel Upgrades: Add advanced telemetry or parallel operation capabilities.
  • Ultra-Low Noise Canopies: Further reduce noise for urban installations.
  • Automatic Transfer Switches (ATS): Enable seamless transition from grid to generator power.
  • Alternator Auxiliary Winding (AREP): Stabilises voltage for nonlinear loads (e.g., UPS systems, variable-speed drives).

The Excel Power XL-DC-550 500kVA Diesel Generator is more than a backup—it’s a strategic asset for uninterrupted operations. With its Cummins-Stanford core, intelligent controls, and customizable upgrades, it’s engineered to exceed expectations.

Contact us today to discuss your requirements, explore upgrade options, or request a quote. Let Excel Power keep your world running, no matter the circumstances.

Looking to purchase a product?

Find a Dealer