Nanni Generator Type Q500 – 5CM50

Description

New Nanni Generator Type Q500 – 5CM50 Marine Generator For Sale

Compact 5 kW Single-Phase Marine Power for Yachts and Boats

The New Nanni Q500 5CM50 Marine Generator is a compact and dependable marine diesel generator designed to provide reliable onboard electricity for sailing yachts, motorboats, catamarans, small commercial vessels, and recreational marine applications. Built around a proven Kubota diesel engine and paired with a Zanardi alternator, the New Nanni Q500 5CM50 combines efficient power generation, compact dimensions, marine-grade cooling, and quiet operation.

Designed for vessels using a 230V single-phase electrical system, the Q500 – 5CM50 delivers 4.7 kW of prime running power and up to 5 kW of limited-time power at 50 Hz. This output provides practical electrical capacity for essential onboard equipment such as battery chargers, refrigeration systems, lighting, navigation electronics, freshwater pumps, communication equipment, small galley appliances, and other compatible vessel loads.

The Q500 – 5CM50 is particularly suitable for boat owners who need a compact onboard power solution without installing an unnecessarily large generator. Its small footprint allows it to fit into machinery spaces where installation room may be limited, while its optional soundshield helps reduce operating noise and improve onboard comfort.

Selecting the correct marine generator requires more than matching a generator’s maximum output to the total wattage of the vessel’s equipment. Boat owners and marine installers should also consider continuous electrical demand, temporary startup loads, available installation space, ventilation, cooling-water supply, exhaust routing, operating hours, and future electrical upgrades.

Purpose-Built Nanni Q500 Marine Engineering

The Nanni Q500 marine generator is designed specifically for marine power generation. Unlike a portable or land-based generator adapted for boat use, the Q500 – 5CM50 integrates a marine cooling system, wet-exhaust arrangement, digital controls, electrical protection, and a compact soundshield configuration.

The generator uses a Kubota-based, two-cylinder, four-stroke diesel engine with a displacement of 479 cm³. The engine features a cast-iron block, gear-driven valve train, indirect mechanical fuel injection, automatic preheating, and a naturally aspirated air-intake system.

These features provide a practical combination of:

• Reliable cold starting
• Efficient diesel operation
• Durable mechanical construction
• Straightforward routine maintenance
• Compact installation dimensions
• Dependable onboard electrical generation

The Q500 – 5CM50 operates at 3000 RPM to produce stable 50 Hz electricity. Its compact engine configuration allows the complete generator package to remain relatively small and lightweight while delivering useful power for essential vessel systems.

Customers evaluating the Nanni Generator Type Q500 – 5CM50 price should consider more than the initial purchase cost. Installation compatibility, fuel efficiency, service access, marine cooling, electrical capacity, acoustic performance, and long-term maintenance requirements all contribute to the generator’s overall value.

Reliable Kubota Diesel Engine Performance

The Q500 – 5CM50 uses a proven Kubota diesel engine platform designed for dependable power generation. Kubota engines are widely used in marine, industrial, agricultural, and generator applications because of their durable construction, efficient operation, and established service support.

The engine includes:

• Two cylinders in line
• Four-stroke diesel operation
• 479 cm³ displacement
• Naturally aspirated air intake
• Indirect mechanical fuel injection
• Automatic engine preheating
• Gear-driven valve operation
• 3000 RPM rated speed

The generator is designed to provide:

• Reliable electricity for essential onboard systems
• Efficient operation under suitable electrical loads
• Compact marine power generation
• Practical access for routine maintenance
• Dependable battery-charging support
• Auxiliary electricity away from marina facilities

A correctly sized diesel marine generator allows boat owners to operate essential electrical equipment while cruising, remaining at anchor, or spending extended periods away from shore power.

It can also reduce the need to run the vessel’s main propulsion engine solely to charge batteries or support domestic electrical equipment.

Prime and Limited-Time Power Ratings

Understanding generator ratings is important when selecting an auxiliary marine power system.

The Nanni Q500 – 5CM50 provides:

The 4.7 kW prime running power rating is the more relevant figure when calculating the vessel’s normal electrical demand. The 5 kW limited-time rating provides additional capacity under the operating conditions defined for limited-time power and should not be treated as the normal continuous output.

The vessel’s expected operating load should remain within the generator’s approved capacity while leaving a reasonable reserve for temporary demand increases.

Equipment such as refrigeration compressors, pumps, battery chargers, and electric motors may require more electricity during startup than during normal operation. These temporary loads should be considered when determining whether the Q500 – 5CM50 is suitable for the vessel.

An undersized generator may experience:

• Electrical overload
• Voltage instability
• Excessive heat
• Frequent protective shutdowns
• Difficulty starting motor-driven equipment
• Reduced generator service life

However, selecting a generator that is much larger than necessary may lead to extended operation under very light loads. A proper marine electrical load assessment helps balance electrical capacity, efficiency, and operating reserve.

Stable 230V Single-Phase Electrical Output

The Q500 – 5CM50 is designed for vessels requiring dependable 230V single-phase marine power. Its electrical configuration makes it suitable for many recreational boats and small professional vessels using standard single-phase onboard equipment.

The generator may support compatible equipment such as:

• Battery chargers
• Refrigeration systems
• Navigation electronics
• Communication equipment
• Freshwater pumps
• Lighting systems
• Entertainment equipment
• Small galley appliances
• Electrical outlets
• Vessel-monitoring systems

The New Nanni Q500 5CM50 uses a Zanardi C60 alternator with Class H insulation, IP23 protection, and voltage regulation. These features support dependable electrical performance within the generator’s approved operating capacity.

Before installation, a qualified marine electrician should verify cable sizes, circuit protection, grounding arrangements, load distribution, shore-power integration, and compatibility with the vessel’s electrical system.

Fuel-Efficient Operation for Smaller Vessels

Fuel consumption is an important consideration for cruising boats and yachts that operate their generators for extended periods.

Nanni’s official technical data lists approximate fuel consumption at different electrical loads:

These figures provide a useful reference for estimating generator operating costs and fuel requirements. Actual fuel consumption may vary according to electrical demand, engine condition, maintenance, fuel quality, ambient temperature, and installation conditions.

Correct generator sizing can improve operating efficiency. A generator that regularly operates within a suitable working range may provide better overall performance than an oversized unit that spends long periods under very light load.

SI-1 Digital Generator Control Panel

The Q500 – 5CM50 is equipped with Nanni’s SI-1 digital generator control panel, designed to simplify generator operation, monitoring, and fault identification.

The SI-1 control system provides:

• Generator start and stop controls
• Engine-parameter monitoring
• Generator-parameter monitoring
• Generator-status information
• Warning and fault-code displays
• Operating-history records
• Multilingual menu support
• Generator circuit-breaker control option

The SI-1 system also provides protection against abnormal operating conditions, including over-frequency, under-frequency, over-voltage, under-voltage, excessive engine temperature, low oil pressure, abnormal engine speed, and low battery voltage.

Digital monitoring helps operators identify abnormal conditions before they develop into more serious problems. However, the control panel does not replace routine inspection and preventive maintenance.

Marine Cooling for Dependable Operation

Reliable cooling is essential for dependable marine generator performance. The New Nanni Q500 5CM50 uses a marine heat-exchanger cooling system designed to maintain stable engine temperature during operation.

Its cooling arrangement includes:

• Belt-driven centrifugal coolant pump
• Bronze seawater pump
• Neoprene seawater-pump rotor
• Freshwater-cooled exhaust manifold
• Marine wet-exhaust system

Nanni lists an approximate seawater-pump flow of 8 litres per minute and a coolant capacity of approximately 2.7 litres.

A properly maintained marine generator cooling system supports:

• Stable engine temperature
• Efficient heat transfer
• Reliable electrical output
• Reduced thermal stress
• Protection of internal engine components
• Longer generator service life

Routine maintenance should include inspection of coolant condition, raw-water strainers, seawater flow, hoses, clamps, drive belts, pump impellers, heat-exchanger surfaces, and wet-exhaust components.

Restricted seawater flow, a damaged impeller, blocked cooling passages, or inadequate machinery-space ventilation may cause overheating even when the generator is correctly sized.

Compact Soundshield Design for Limited Machinery Spaces

The Q500 – 5CM50 is supplied in a compact soundshield configuration designed to improve acoustic comfort while protecting internal components and maintaining practical service access.

Nanni lists the following approximate dimensions:

The compact package makes the generator suitable for vessels where machinery-space dimensions are limited.

The soundshield is designed to help reduce:

• Airborne engine noise
• Alternator noise
• Mechanical generator noise
• Machinery-space sound transmission

A properly installed quiet marine generator should also include:

• Correctly selected flexible mounts
• Effective machinery-space ventilation
• Properly supported hoses and electrical cables
• A professionally designed wet-exhaust system
• Adequate acoustic insulation
• Sufficient maintenance clearance

The soundshield alone does not determine the final onboard noise level. Hull construction, mounting quality, exhaust design, ventilation openings, and vibration transfer through the vessel structure also affect acoustic performance.

Applications of The New Nanni Q500 5CM50

Sailing Yachts

The generator can support battery charging, refrigeration, navigation electronics, lighting, freshwater pumps, communication systems, and other essential cruising equipment.

Motorboats and Motor Yachts

The Q500 – 5CM50 may provide dependable auxiliary electricity for domestic systems, refrigeration, battery chargers, lighting, entertainment equipment, and compatible small appliances.

Cruising Catamarans

Its compact dimensions make it a practical boat generator for catamarans requiring efficient single-phase electricity without installing an unnecessarily large generator set.

Liveaboard Vessels

The generator may support essential domestic equipment during extended periods at anchor or away from marina electricity.

Small Professional Vessels

The Q500 – 5CM50 can serve as a compact commercial marine generator for communication equipment, lighting, pumps, battery charging, and other compatible operational loads.

Marine Refit Projects

The generator may be considered when replacing an ageing, inefficient, or unreliable small marine genset, provided the vessel’s electrical and installation requirements are compatible.

Technical Specifications of the Nanni Q500 – 5CM50

The Q500 – 5CM50 is officially rated at 4.7 kW prime power and 5 kW limited-time power, with 230V single-phase output at 50 Hz.

Standard Equipment and Available Options

The Nanni Q500 – 5CM50 is supplied as an integrated marine diesel generator set designed for practical onboard installation.

Standard equipment includes:

• Two-cylinder Kubota diesel engine
• Zanardi C60 single-phase alternator
• SI-1 digital control panel
• 12V unipolar electrical system
• Marine heat exchanger
• Raw-water pump with neoprene rotor
• Marine wet-exhaust system
• Automatic engine preheating
• Protection of essential operating parameters
• Soundshield enclosure

Available options may include:

• Siphon breaker
• Fuel pre-filter
• Bipolar electrical system
• Additional marine installation accessories

The final equipment package should be confirmed before ordering because production specifications and installation requirements may change.

Genuine Nanni Generator Supply and Worldwide Support

Customers looking for the New Nanni Generator Type Q500 – 5CM50 Marine Generator for sale can contact our marine specialists for current availability, technical guidance, configuration information, and international delivery assistance.

We support customers with:

• Genuine Nanni marine generator supply
• Electrical-load and generator-sizing guidance
• Marine application recommendations
• Replacement generator assessments
• Export documentation
• Worldwide shipping arrangements
• After-sales customer assistance

Nanni’s official product information describes the 5CM50 as a compact, quiet, HVO-compatible generator built on a Kubota engine base.

Frequently Asked Questions

What is the Nanni Q500 – 5CM50 price?

The Nanni Generator Type Q500 – 5CM50 price depends on current availability, selected equipment, shipping destination, export requirements, and delivery arrangements. Contact our team for an updated quotation.

How much power does the Q500 – 5CM50 provide?

The generator provides 4.7 kW of prime running power and up to 5 kW of limited-time power.

Is the Q500 – 5CM50 a single-phase generator?

Yes. It provides 230V single-phase marine power at 50 Hz.

What engine is used in the Q500 – 5CM50?

The generator uses a Kubota-based, two-cylinder diesel engine with a displacement of 479 cm³.

Is the Q500 – 5CM50 suitable for sailing yachts?

Yes. Its compact dimensions and practical electrical capacity make it suitable for compatible sailing yachts, motorboats, catamarans, and smaller professional vessels.

Can the generator operate refrigeration and battery chargers?

Yes, provided the combined continuous demand and equipment startup loads remain within the generator’s rated capacity.

Is a sound enclosure included?

The New Nanni Q500 5CM50is offered in a compact sound shield configuration designed to reduce generator noise and improve onboard comfort.

Can it replace an existing small marine generator?

Yes. It may be suitable for a marine generator replacement when voltage, frequency, output, dimensions, cooling, exhaust, mounting, and electrical requirements are compatible.

Is worldwide shipping available?

Yes. We support international marine generator supply, export documentation, and worldwide shipping arrangements.

Request a Quote for the Nanni Q500 – 5CM50 Marine Generator

The New Nanni Generator Type Q500 – 5CM50 Marine Generator is a dependable choice for yacht owners, boat builders, marine installers, and professional operators requiring compact and efficient single-phase marine power.

Contact our marine generator specialists to request the latest New Nanni Q500 5CM50 price, confirm current availability, review installation requirements, and receive assistance selecting the correct generator configuration for your vessel.