Discover our marine 4.4 kVA generator

4.4 kVA Generator

Where to buy
Piccolo 4 - USA Version
Website Header Marine
Silent, compact & light weight

Based on an indirect water-cooled diesel engine, fits into any space

Adjustable or variable speed

Up to 4.4 kVA (3.5 kW), 230 VAC, 1 ph, 50 Hz (60Hz)

Premium inverter technology

Highest output quality & strong peak power

The little power house

The WhisperPower 4.4 kVA generator is the smallest, quietest and most powerful in its class. Thanks to the electronic PMG inverter output, it provides ideal power quality for all comfort appliances such as washing machines, small air conditioners, electrical cooking hob, battery chargers and inverter/charger combinations.

Unique engine
Our marine 4.4 kVA generator is equipped with a modern diesel engine developed by WhisperPower to generate electricity smoothly. The engine is cooled by a heat exchanger designed for indirect water cooling. The circulating water pump is driven by a PTO (no belt). This WhisperPower engine runs between 2400 and 3600 rpm.

Our marine 4.4 kVA generator

Main Specifications

  • Intermittent Power kW at 25°C (77°F)
    3.5 kW
  • Continuous Power kVA at 25°C (77°F)
    4.4 kVA
  • Nominal voltage / frequency
    230 VAC, 1 ph, 50 Hz (60Hz)
  • Rpm range
    2400 .. 3600 rpm, adjustable or automatic
  • Engine
    WhisperPower WP1
  • Noise level
    54 dB(A) at 7 m, 65 dB(A) at 1m
  • Length x width x height, mm (in.)
    450 x 470 x 520 (17.7 x 18.5 x 20.5)
  • Dry weight (cabinet + PMG), kg (lb.)
    68 + 7,6 (150 + 16.8)
Piccolo 4 5 Side Open Effect1
Piccolo 4 5 Side Open1

Optional installation parts

Spare parts

Piccolo 4 5 Front Open Effect
Piccolo 4 5 Front Open

Unique Genverter Technology

Our 4.4 kVA generator is a combination of a diesel engine with integrated alternator and inverter, therefore the name Genverter. The main feature of this technology is the combination of output quality and surge power capability. Within a specific window of the rotating speed of the diesel engine, PMG provides the right quality of power to run electrical equipment such as tools, compressors, washing machines, air conditioners, electric cooking devices and various other AC equipment.

Ready to install
Our 4.4 kVA generator comes with all the fittings needed to connect the generator to the fuel tank, hoses to connect the engine to the cooling system, cables to connect the starter engine to the starter battery and wires to connect the generator to the 230 V on-board power system. Learn more about the Piccolo via WhisperTV.


WhisperPower 4.4 kVA generator installation video

Discover our Youtube channel Whisper TV. Full with instruction videos about our generators and total energy systems.

6 kVA generator

Why inverter technology

Equipment such as air conditioners and electric motors are often controlled electronically to improve efficiency and performance. Conventional generators may not be able to operate these appliances. Our 4.4 kVA generator model is equipped with a PMG module (Power Module Genverter©) to ensure that voltage and frequency are kept perfectly within the rotating speed range to keep everything running without interruption. The surge power is generated by the PMG to increase the inductive load.

Shareef Quote4

Shareef Sourour, Marina Yachts Dubai

“The last 3 years I have delivered more than 25 boats with a WhisperPower 4.4 kVA generator, to operate a 16,000 BTU and a 10,000 Dometic Airconditioning unit, fitted with a soft start. They all have worked perfectly until today and are still running”

“This is a great product, there is no equivalent generator product available in the market”

Piccolo 5

4.4 kVA / 3.5 kW

Adjustable or variable speed

230 VAC, 1 ph, 50 Hz (60Hz)

Output Voltage

450 x 470 x 520 mm, 75,6 kg

17.7 x 18.5 x 20.5 in., 166.8 lb.

Piccolo 4+5 Installation1

Installation solution

High class installation parts
A system is only as strong as its weakest link. WhisperPower literally developed all the components and products needed for a perfect installation. The main goal is to ensure a good installation. All these mounting accessories are provided as kits: the metal strainer with hoses and valves, the fuel filter, the siphon breaker, the water-cooled exhaust system in different variants including high-quality certified rubber hoses, the starter battery with additional battery charger, copper cables etc. All high quality from a single source. Learn more about How to Install A Marine Generator.

Any space will do
All our marine generators can be installed in the smallest locations as they are super compact. Only slight air ventilation is needed.

Piccolo Complete System1

Advanced total system

We offer one-brand solutions for complete electrical power systems on board. Everything from one hand. If needed provided with inverter, charger (or combi), lithium/lead acid batteries and WhisperCare remote access.

  • Complete compact power system
  • Easy to install and connect
  • Automatic start/stop, easy to activate
  • WPC inverter/charger combination with charge power, 12/24 VDC
  • Automatic transfer Switch shore/generator/inverter
  • Easy to use TOUCH 7 all-in-one monitoring panel with smart Ah read-out
  • Suitable for WhisperPower’s AGM, GEL or lithium batteries
  • Available for WhisperCare remote read-out
  • Optional alternator with ACR voltage regulator, 12/24 VDC
Vibration Free1

Quiet & vibration free

Vibration is just as annoying as an overly loud diesel engine. A combination of customized shock mounts and sound enclosure make for an ultra-quiet and virtually vibration free construction. All parts needed to be serviced are located on one side of the Genverter. Effective mounting of the engine within the enclosure result in an audible noise level of less than 55 dBA and virtually no vibration.

Picture: detail of our WhisperPower WP 1 diesel engine (Shockmount integrated in engine block).

Extremely Silent

The most silent generator in the market

The perfect voltage

Outstanding voltage stability and a pure sine wave output

Fuel saving

Superior efficiency combined with strong peak power capability

Compact & light weight

Fits in any space

Two in one solution

Charging via Generator, and via shore power, global plug-in

Modern technology

1-cylinder Permanent Magnet generator with external PMG box & remote panel