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Description
New Nanni Generator Type QMS10T Marine Generator For Sale
Compact Three-Phase Marine Power for Yachts, Catamarans and Professional Vessels
The New Nanni QMS10T Marine Generator is a compact, low-speed three-phase marine diesel generator designed to provide dependable onboard electricity for sailing yachts, motor yachts, cruising catamarans, liveaboard vessels, workboats, and other professional marine applications. Built around a proven three-cylinder Kubota diesel engine and paired with a compact Mecc Alte synchronous alternator, the QMS10T combines reliable mechanical engineering, stable electrical output, marine-grade cooling, and practical serviceability.
Designed for vessels using a 230/400V three-phase electrical system, the QMS10T delivers approximately 6.8 kW or 8.5 kVA of continuous power and up to 7.7 kW or 9.6 kVA of prime power at a 0.8 power factor. The generator operates at 50 Hz and 1500 RPM, making it suitable for compatible pumps, refrigeration systems, battery chargers, ventilation equipment, navigation electronics, communication systems, lighting, and other essential onboard electrical loads. (Nanni Industries)
The New Nanni QMS10T is particularly suitable for vessel owners who require compact three-phase marine power without installing a larger generator than their electrical system requires. Its low-speed diesel configuration supports smooth operation, reduced mechanical wear, and dependable electricity during cruising, anchoring, or extended operation away from shore-power facilities.
Selecting the correct marine generator requires more than comparing the model name or maximum power rating. Vessel owners, boat builders, and marine installers should also evaluate continuous electrical demand, motor-starting loads, phase balance, machinery-space dimensions, cooling-water supply, ventilation, exhaust routing, operating hours, and possible future electrical upgrades.
Purpose-Built Nanni QMS Marine Engineering
The Nanni QMS generator range is developed specifically for marine electrical power generation. Unlike a portable generator or conventional industrial power unit adapted for use aboard a boat, the New Nanni QMS10T is configured as an integrated marine power-generation system with dedicated cooling, exhaust, electrical, mounting, and installation features.
Nanni designs and manufactures engines and generator sets specifically for demanding marine applications. The company supports its products through an international network of distributors and service locations, providing access to technical expertise, maintenance support, and genuine replacement parts in major marine markets. (Nanni Industries)
The QMS10T uses a three-cylinder, inline, four-stroke Kubota diesel engine with approximately 1.1 litres of displacement. Its engine configuration includes:
- Mechanical fuel regulation
- Indirect diesel injection
- Naturally aspirated air intake
- Three-cylinder inline construction
- 1500 RPM operating speed
- Marine heat-exchanger cooling
The QMS range uses Mecc Alte alternators, a recognized manufacturer of compact synchronous alternators. These alternators are selected to provide reliable electrical generation while maintaining dimensions suitable for marine machinery spaces. (Nanni Industries)
The generator is designed for operating conditions that may include:
- Continuous vibration
- High humidity
- Saltwater exposure
- Restricted machinery-space ventilation
- Changing electrical demand
- Vessel movement and inclination
- Extended periods away from shore power
Customers evaluating the Nanni Generator Type QMS10T price should consider more than the initial purchase cost. Electrical capacity, fuel efficiency, installation compatibility, service access, marine cooling, low-speed operation, acoustic options, and long-term parts support all contribute to the generator’s overall operating value.
Proven Three-Cylinder Kubota Diesel Performance
The New Nanni QMS10T 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 history.
The engine configuration includes:
- Three cylinders in line
- Four-stroke diesel operation
- Approximately 1.1-litre displacement
- Mechanical fuel regulation
- Indirect fuel injection
- Naturally aspirated air intake
- 1500 RPM rated speed
The mechanical fuel system provides a straightforward operating arrangement that may appeal to yacht owners and professional operators who value familiar diesel-maintenance procedures and reduced dependence on complex electronic fuel-management components.
Potential advantages include:
- Practical mechanical servicing
- Familiar diesel troubleshooting procedures
- Straightforward fuel-system construction
- Reduced dependence on electronic engine controls
- Established Kubota diesel technology
- Suitability for long-range cruising applications
Mechanical fuel regulation does not remove the need for preventive maintenance. Clean diesel fuel, effective filtration, correct injector performance, proper lubrication, reliable cooling, and scheduled servicing remain essential for dependable long-term operation.
A correctly sized diesel marine generator allows vessel owners to operate essential electrical equipment while cruising, remaining at anchor, or working offshore without depending on marina electricity.
It can also reduce the need to operate the vessel’s main propulsion engine solely for battery charging or auxiliary electrical production.
Continuous and Prime Power Ratings
Understanding generator ratings is important when selecting an auxiliary marine power system.
The Nanni QMS10T provides:
| Electrical Specification | Rating |
|---|---|
| Continuous Power | 6.8 kW / 8.5 kVA |
| Prime Power | 7.7 kW / 9.6 kVA |
| Voltage | 230/400V |
| Frequency | 50 Hz |
| Electrical Configuration | Three Phase |
| Power Factor | 0.8 |
| Operating Speed | 1500 RPM |
Nanni lists the QMS10T with 7.7 kW of prime power at 230/400V, three phase, and 50 Hz. Generator ratings are stated according to ISO 8528-1. (Nanni Industries)
The continuous rating is generally the more relevant figure when evaluating the vessel’s normal sustained electrical demand. The prime rating represents the generator’s published operating capacity under the applicable duty conditions.
The vessel’s expected electrical demand should remain within the approved operating range while leaving reasonable reserve capacity for temporary increases in load.
Equipment such as pumps, refrigeration compressors, electric motors, battery chargers, and ventilation systems may require more electricity during startup than during normal operation.
Selecting a generator that is too small may result in:
- Electrical overload
- Voltage instability
- Excessive operating temperatures
- Difficulty starting electric motors
- Frequent protective shutdowns
- Reduced generator service life
However, choosing a generator that is substantially larger than required may lead to prolonged operation under very light load. A professional marine electrical load assessment helps balance generator capacity, equipment startup demand, fuel efficiency, and operating reserve.
Stable 230/400V Three-Phase Electrical Output
The QMS10T is designed for vessels requiring dependable 230/400V three-phase marine power. Three-phase electrical systems distribute power efficiently to compatible pumps, motors, compressors, ventilation equipment, and auxiliary machinery.
The generator may support compatible equipment such as:
- Seawater and freshwater pumps
- Refrigeration and freezer systems
- Battery-charging equipment
- Ventilation and extraction systems
- Navigation electronics
- Communication equipment
- Vessel-monitoring systems
- Lighting circuits
- Small water-making systems
- Auxiliary electric motors
- Professional marine equipment
Before installation, a qualified marine electrician should verify:
- Generator voltage
- Electrical frequency
- Phase rotation
- Earthing and bonding arrangements
- Cable sizes
- Circuit protection
- Switchboard compatibility
- Load distribution
Single-phase equipment may be supplied through a correctly designed three-phase distribution system. However, loads should be distributed appropriately across the phases because excessive imbalance may reduce usable generator capacity and affect electrical stability.
Dependable Electricity for Modern Vessel Systems
Modern yachts and professional vessels depend on stable electricity for navigation, communication, refrigeration, battery charging, lighting, monitoring, safety equipment, and daily onboard operation.
The New Nanni QMS10T generator set is designed to provide dependable electrical output as connected demand changes. Stable voltage and frequency are particularly important for vessels operating electronic equipment and motor-driven systems.
A reliable vessel power-generation system may support:
- Navigation displays
- Communication equipment
- Battery chargers
- Refrigeration controls
- Vessel-monitoring systems
- Lighting equipment
- Pumps and motor starters
- Safety and alarm systems
- Essential domestic equipment
Electrical performance depends on the complete installation rather than the generator alone. Engine-speed stability, alternator regulation, cable sizing, grounding, circuit protection, phase balance, and switchboard design all influence onboard power quality.
Professional installation and commissioning are therefore important for dependable long-term operation.
Marine Cooling for Sustained Operation
Reliable cooling is essential for dependable marine generator performance. Unlike land-based generators operating in open surroundings, marine generator sets are normally installed inside enclosed machinery spaces where engine and alternator heat must be managed effectively.
The QMS10T uses a dedicated marine generator cooling system designed to maintain stable engine temperature during operation. Its marine configuration may include:
- Closed engine-coolant circulation
- Marine heat exchanger
- Raw-water pump
- Seawater cooling circuit
- Wet-exhaust arrangement
- Flexible marine cooling connections
A properly maintained cooling system supports:
- Stable engine operating temperature
- Efficient heat transfer
- Reliable performance under sustained electrical demand
- Reduced thermal stress
- Protection of internal engine components
- Longer generator service life
Routine maintenance should include inspection of:
- Engine coolant condition
- Raw-water strainers
- Seawater flow
- Cooling hoses and clamps
- Drive belts
- Raw-water pump impellers
- Heat-exchanger components
- Wet-exhaust connections
Restricted seawater flow, a damaged impeller, blocked cooling passages, or inadequate machinery-space ventilation may cause overheating even when the generator is correctly sized.
Where the generator is installed below the vessel’s waterline, the seawater and exhaust arrangement should be evaluated for siphoning risk. A correctly installed siphon break may be required depending on the vessel configuration.
Low-Speed Operation and Reduced Vibration
The New Nanni QMS10T operates at 1500 RPM in its 50 Hz configuration. This low-speed design can help reduce mechanical wear, vibration, and operating noise compared with many compact generators operating at 3000 RPM. (Nanni Industries)
Lower operating speed may contribute to:
- Smoother generator performance
- Reduced vibration transfer
- Lower mechanical wear
- Improved onboard comfort
- Dependable operation during extended cruising
- Longer operating life when correctly maintained
A properly installed quiet marine generator should also include:
- Flexible anti-vibration mounts
- Effective machinery-space ventilation
- Properly supported hoses and electrical cables
- A professionally designed wet-exhaust system
- Suitable machinery-space insulation
- Adequate maintenance clearance
Final onboard noise depends on more than the generator itself. Hull construction, mounting quality, exhaust routing, ventilation openings, and vibration transfer through the vessel structure also influence acoustic performance.
Optional Soundshield for Improved Onboard Comfort
The QMS10T is available with an optional sound enclosure. Nanni uses insulated painted marine-aluminium panels for sound-enclosed QMS generator configurations. The enclosure is designed with access points for required connections, inspection, lifting, and routine maintenance. (Nanni Industries)
The optional soundshield can help reduce:
- Airborne diesel-engine noise
- Alternator operating noise
- Machinery-space sound transmission
- Noise reaching cabins and living areas
The enclosure alone does not determine the final onboard sound level. Flexible mounting, exhaust design, machinery-space insulation, ventilation, and structural vibration control remain important parts of a complete acoustic installation.
Before selecting the soundshield configuration, confirm:
- Machinery-space dimensions
- Service access
- Ventilation capacity
- Seawater connection locations
- Exhaust routing
- Fuel-line access
- Electrical cable access
- Lifting and future removal clearances
Compact Installation for Space-Conscious Vessels
The QMS10T uses the same compact three-cylinder engine platform as the QMS7.5M, making it suitable for vessels where machinery-space dimensions are limited.
Nanni publishes approximate standard dimensions of:
| Measurement | Specification |
|---|---|
| Length | 840 mm |
| Width | 489 mm |
| Height | 620 mm |
| Dry Weight | Approximately 224 kg |
With the optional sound enclosure, approximate dimensions are:
| Measurement | Specification |
|---|---|
| Length | 950 mm |
| Width | 540 mm |
| Height | 710 mm |
| Dry Weight | Approximately 271 kg |
These measurements should be treated as reference values. Final installation planning should use the approved model-specific installation drawing because dimensions and weights may vary according to the selected configuration. (Nanni Industries)
When replacing an existing boat generator, matching only the electrical output is not sufficient. Voltage, frequency, phase configuration, dimensions, mounting arrangements, cooling capacity, exhaust routing, fuel-system compatibility, and switchboard integration should also be verified.
Applications of the Nanni QMS10T Marine Generator
Sailing Yachts
The generator can provide dependable electricity for battery charging, refrigeration, pumps, navigation electronics, lighting, communication equipment, and other essential cruising systems.
Cruising Catamarans
Its compact dimensions and useful three-phase output make it a practical catamaran generator for compatible vessels requiring independent electricity away from shore facilities.
Motor Yachts
The QMS10T may support compatible pumps, refrigeration equipment, charging systems, ventilation, lighting, navigation electronics, and selected comfort equipment.
Liveaboard Vessels
The generator can provide an independent source of electricity for refrigeration, water systems, battery charging, lighting, and essential domestic equipment during extended periods at anchor.
Workboats and Professional Craft
The QMS10T may serve as a compact commercial marine generator for pumps, communication equipment, refrigeration, lighting, and operational systems.
Marine Refit Projects
The generator may be considered when replacing an older, inefficient, or unreliable three-phase generator, provided the vessel’s electrical and installation requirements are compatible.
Technical Specifications of the Nanni QMS10T
| Specification | Details |
|---|---|
| Brand | Nanni |
| Generator Series | QMS |
| Generator Type | QMS10T |
| Generator Category | Marine Diesel Generator |
| Continuous Power | 6.8 kW / 8.5 kVA |
| Prime Power | 7.7 kW / 9.6 kVA |
| Voltage | 230/400V |
| Frequency | 50 Hz |
| Electrical Configuration | Three Phase |
| Power Factor | 0.8 |
| Operating Speed | 1500 RPM |
| Engine Base | Kubota |
| Engine Configuration | Three Cylinders, Inline |
| Engine Cycle | Four-Stroke Diesel |
| Engine Displacement | Approximately 1.1 Litres |
| Fuel System | Mechanical |
| Injection System | Indirect Injection |
| Air Intake | Naturally Aspirated |
| Alternator Brand | Mecc Alte |
| Cooling System | Marine Heat-Exchanger Cooling |
| Exhaust System | Marine Wet Exhaust |
| Soundshield | Optional |
| Standard Dimensions | Approximately 840 × 489 × 620 mm |
| Standard Dry Weight | Approximately 224 kg |
| Soundshield Dimensions | Approximately 950 × 540 × 710 mm |
| Soundshield Dry Weight | Approximately 271 kg |
| Application | Yacht, Catamaran and Professional Marine Use |
The QMS10T is officially listed by Nanni with 7.7 kW of prime power, 230/400V three-phase output, a three-cylinder Kubota diesel engine, mechanical fuel regulation, indirect injection, naturally aspirated air intake, and 1500 RPM operation. (Nanni Industries)
Final alternator specifications, control equipment, standard accessories, optional equipment, and installation requirements should be confirmed before ordering.
Standard Marine Equipment and Available Options
The Nanni QMS10T is supplied as an integrated marine diesel generator set designed for dependable onboard installation.
Typical equipment may include:
- Three-cylinder Kubota diesel engine
- Mecc Alte three-phase alternator
- Mechanical fuel-control system
- Indirect diesel injection
- Naturally aspirated air intake
- Marine heat-exchanger cooling
- Raw-water circulation equipment
- Marine wet-exhaust components
- Fuel and oil filtration
- Generator protection equipment
- Flexible mounting arrangement
- Operating and maintenance documentation
Available installation options may include:
- Marine-aluminium sound enclosure
- Fuel pre-filter
- Fuel-water separator
- Siphon-break equipment
- Remote generator monitoring
- Additional marine installation accessories
The exact standard equipment and optional package should be confirmed during quotation because production specifications, regional configurations, and vessel requirements may vary.
Genuine Nanni Generator Supply and Worldwide Support
Customers looking for the New Nanni Generator Type QMS10T 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
- Technical documentation
- Export documentation
- Worldwide shipping arrangements
- After-sales customer assistance
Whether you are completing a yacht refit, upgrading a catamaran’s electrical system, or installing a new three-phase onboard power system, selecting the correct generator configuration can reduce installation challenges and improve long-term operating reliability.
Frequently Asked Questions
What is the New Nanni QMS10T price?
The Nanni Generator Type QMS10T price depends on current availability, soundshield selection, optional equipment, shipping destination, export requirements, and delivery arrangements. Contact our team for an updated quotation.
How much power does the QMS10T provide?
The generator provides approximately 6.8 kW or 8.5 kVA of continuous power and up to 7.7 kW or 9.6 kVA of prime power.
Is the QMS10T a three-phase generator?
Yes. It provides 230/400V three-phase marine power at 50 Hz with a 0.8 power factor.
What engine is used in the QMS10T?
The generator uses a three-cylinder Kubota diesel engine with approximately 1.1 litres of displacement, mechanical fuel regulation, indirect injection, and naturally aspirated air intake.
What does the “T” designation mean?
The “T” designation identifies the QMS10T as a three-phase marine generator.
Is a sound enclosure available?
Yes. The QMS10T is available with an optional insulated marine-aluminium sound enclosure designed to reduce airborne generator noise and improve onboard comfort.
Is the QMS10T suitable for yachts and catamarans?
Yes. Its compact dimensions, low-speed operation, and three-phase electrical output make it suitable for compatible sailing yachts, motor yachts, cruising catamarans, workboats, and professional vessels.
Can it replace an existing marine generator?
Yes. It may be suitable for a marine generator replacement when output, voltage, frequency, phase configuration, dimensions, mounting, cooling, exhaust, fuel, and switchboard requirements are compatible.
Is worldwide shipping available?
Yes. We support customers with international marine generator supply, export documentation, and worldwide shipping arrangements.
Request a Quote for the Nanni QMS10T Marine Generator
The New Nanni QMS10T Marine Generator is a dependable choice for yacht owners, boat builders, marine installers, and professional operators requiring compact three-phase marine power from a low-speed, mechanically controlled Kubota diesel platform.
Contact our marine generator specialists to request the latest Nanni QMS10T price, confirm current availability, review installation requirements, and receive assistance selecting the correct generator configuration for your vessel.





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