Grupel GRGR55 55kVA 3 Phase Diesel Generator

Part of the Grupel Smart Range, the Grupel GRGR55 55kVA 3-Phase Diesel Generator is engineered to deliver exceptional performance as both a standby power source for critical facilities and a prime power solution for off-grid operations. Designed for industrial, commercial, and institutional use, this 55kVA diesel generator combines high-efficiency engineering, advanced noise reduction, and extended runtime capabilities to ensure uninterrupted power in the most demanding environments.

Technical Specifications & Power Output

• Standby Power: 55kVA / 44kW
• Prime Power: 50kVA / 40kW
• Engine Speed: 1500 RPM (optimized for 50Hz output)
• Phase Configuration: 3-Phase (ideal for heavy machinery and large-scale operations)
• Alternator: Grupel 224GB50 (Class H insulation, brushless design)
• Controller: Grupel G545 (intuitive interface with real-time monitoring)

Operating at 1500 RPM, the GRGR55 55kVA genset balances fuel efficiency with robust performance, ensuring stable voltage regulation (±1%) even under fluctuating loads. Its 3-phase output makes it indispensable for powering industrial motors, construction equipment, data centres, and healthcare facilities requiring balanced, high-capacity energy distribution.

Standby vs. Prime Power: Versatility Across Applications

The Grupel GRGR55’s dual power ratings make it a flexible solution for diverse scenarios:

• Standby Power (55kVA/44kW): Built to support critical systems during grid failures, such as hospital life-support equipment, server farms, or manufacturing lines.
• Prime Power (50kVA/40kW): Engineered for continuous operation in remote locations like mining sites, agricultural operations, or events where grid power is unavailable.

Compared to smaller 35–45kVA generators, the GRGR55 delivers 20–30% more power, making it ideal for facilities with higher energy demands. While larger 60–75kVA units offer increased capacity, they often sacrifice fuel efficiency and compactness—key advantages of the 55kVA size.

Close-Fitting Acoustic Canopy: Quiet Operation at 71 dB(A)

Equipped with a precision-engineered acoustic canopy, the Grupel 55kVA diesel generator operates at just 71 dB(A) at 7 meters. This makes it suitable for urban installations, hospitals, schools, or event venues where noise reduction is critical. Competing models in this class often exceed 75 dB(A), highlighting Grupel’s commitment to minimizing environmental disruption.

55-Litre Bunded Fuel Tank: Extended Runtime for Prolonged Use

The GRGR55’s 55-litre bunded fuel tank provides up to 5.9 hours of continuous operation at 75% prime load (40kW), reducing downtime for refueling during extended outages or remote operations. The bunded design includes secondary spill containment, ensuring compliance with environmental regulations. Smaller 35kVA generators typically require refueling every 8–10 hours, while larger 60kVA+ units consume fuel faster, making the 55kVA size a balanced choice for efficiency and runtime.

Standby-Ready Features: Engineered for Instant Activation

Pre-installed engine coolant heaters and battery chargers ensure this Grupel 55kVA 3-Phase diesel generator is always primed for immediate deployment. The coolant heater maintains optimal engine temperature in cold climates, while the battery charger guarantees reliable starts features often sold as costly add-ons by competitors. This plug-and-play readiness is vital for mission-critical applications like data centres or emergency response units, where delays are not an option.

Grupel 224GB50 Alternator & G545 Controller: Precision and Durability

• Grupel 224GB50 Alternator: Built with Class H insulation (withstanding temperatures up to 180°C) and a brushless design, this alternator ensures minimal maintenance and maximum reliability under heavy loads.
• Grupel G545 Controller: Offers advanced diagnostics, including real-time monitoring of fuel levels, voltage, and engine health, with automatic shutdown for faults like low oil pressure or overheating.

These components outperform generic alternatives, which often lack the same precision, durability, and compliance with international standards.

2-Year/2000-Hour Warranty: UK-Wide Support

Backed by a 2-year or 2000-hour warranty (whichever comes first), the GRGR55 is fully supported by Hampshire Generators, Grupel’s UK partner. This includes nationwide servicing, genuine parts access, and technical support advantages often absent with imported or lesser-known brands.

Hampshire Generators can also maintain your generator with a regular cost-effective service plan or one-off visit. Simply call 01329 722390 or inquire via contact us page for more information.

Why Choose a 55kVA Diesel Generator?

• Optimal Power Range: Bridges the gap between smaller generators (35–45kVA) and bulkier 60kVA+ models, offering ample power without excessive fuel consumption.
• 3-Phase Compatibility: Essential for industrial machinery, HVAC systems, and commercial facilities requiring balanced load distribution.
• Fuel Efficiency: Consumes approximately 5.9 litres/hour at 75% load (prime power), compared to 9+ litres for 60kVA units.

Competitive Comparison: 55kVA vs. Other Sizes

• 35–45kVA Generators: Ideal for small businesses but lack the capacity for heavy machinery or large facilities.
• 60–75kVA Generators: Higher output but less fuel-efficient and bulkier, requiring more space and infrastructure.
• GRGR55 55kVA: Strikes the perfect balance, delivering robust power in a compact, cost-effective package.

Grupel GRGR55 55kVA 3-Phase Diesel Generator: Robust, Reliable Power for Demanding Applications

The Grupel GRGR55 55kVA 3-Phase Diesel Generator is a standout in its class, combining Grupel’s engineering excellence with user-centric features like low noise output, extended runtime, and standby readiness. Supported by Hampshire Generators’ local expertise, it’s the ideal choice for businesses prioritising reliability, compliance, and operational continuity.