Discover the W-SQ Pro 40 mobile generator

W-SQ Pro 40

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W SQ 40 Front Closed
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Perfect sinewave

Industrial power quality for a disturbance-free power provision

Fixed speed & Stage V

40 kVA (35 kW), 400-230 VAC, 3 ph, 50 hz (60 Hz)

Smallest and quietest in it’s class

Robust sound-shield & heavy insulation for optimal sound reduction - 50 dB

Meet the W-SQ Pro 40 3-phase, Stage V, designed to last a lifetime

Every W-SQ (Super Quiet) Pro 40 WhisperPower diesel generator is designed for non-stop, 1500 rpm operation under harsh circumstances. They are robust, silent, compact and extremely reliable. All W-SQ Pro 40 generators are made in the Netherlands and extended tested in one of the most advanced generator production facilities in the world, before distributed on a world-wide base by dedicated, service orientated, distribution partners.

Main Specifications

  • Continuous Power kVA at 25°C (77°F)
    40 kVA
  • Continuous Power kW at 25°C (77°F)
    35 kW
  • Nominal voltage / frequency
    400-230 VAC, 3 ph, 50 Hz (60 Hz)
  • Rpm range
    1500 rpm
  • Engine
    Kubota V3800-CR-TE5BG2-SAE2
  • Noise level (dB at 7 m) at 80% load
    50 dB
  • Weight kg (lb.)
    875 (1929)
  • Length x width x height, mm (in.)
    1985 x 940 x 1075 (78.2 x 37 x 42.3)
W SQ 40 Left Open1
W SQ 40 Left Open1

Optimal Sound reduction

The W-SQ Pro 40 comes standard with a robust sound-shield with corrosion proof metal plating and heavy insulation material for optimal sound reduction. The sound shield is equipped with easy entry to all sides of the generator and offers access to all maintenance related components from one-side.

Units can also be delivered without a sound-shield. Ask for our open units with or without sound-shield.

W SQ 40 Electronics

Deep Sea Control

  • Genset parallel functionality included (ask for more details)
  • Provides secure and simple off site monitoring (optional)
  • Enables fault conditions to be resolved quickly and provides instant system information to aid preventative maintenance
  • Graphical displays showing, charts, meters, power display, graphs and engine status information
  • Information is displayed clearly and in a universal format for all users 
  • Language by choice

Pure power, excellent service & adequate parts supply

All W-SQ Pro 40 generators are set up to automatically operate air-conditioning/ heating systems, heavy-duty tools, compressors, kitchen galleys, lights, refrigeration and cooling systems, computers and more. All at the same time, depending on the load.

The ever growing global network of distributors and dealers take care of technical support and service.

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1500 RPM

Fixed speed

400-230 VAC, 3 ph, 50 Hz (60 Hz)

Output Voltage

40 kVA / 35 kW

Continuous power at 25°C (77°F)


Hybrid system using the W-SQ Pro 40

A mobile power supply is indispensable when sufficient power is needed at the filming locations for a movie or series, especially as the location is often changed several times a day. It’s not just lighting, sound and camera equipment that need power… Catering for the film crew and actors is also a major issue.

Discover more about our project with Lichthaus Berlin GmbH


24/7 Monitoring with WhisperCare

The W-SQ Pro 40 can be monitored 24/7 in real-time remotely via the optional WhisperCare Wi-Fi router package. This is based on a 4G/ 5G internet connection in combination with a WhisperTouch 7ʺ or 10” monitoring screen.

With WhisperCare, all important parameters can be read from a distance via a cell phone, tablet or computer. In addition, full Wi-Fi is now available for computers, TVs and other enabled devices. WhisperPower systems can also be connected to various digital switching systems and each integrates perfectly with Naviop, Yachtcontrol, Garmin, Trigentic, EmpirBus and others.

Advanced total system

  • 1500 rpm, 3 phase, 400-230 VAC / 50 Hz
  • Manufactured in Holland, Highest quality standards
  • Robust AVR voltage regulation
  • Electronic governor for best power quality
  • Air-cooled, industrial back-end
  • Indirect water cooling principle
  • All connections are pre-mounted (cooling, exhaust, electrical)
  • Parallel connection optional
  • Ungrounded versions available
  • Open versions, units without sound shields, available
Extremely Silent

The most silent generator in the market

Optimal sound reduction

Robust sound-shield, corrosion proof metal plating

Perfect sinewave

Industrial power quality for a disturbance-free power provision

One-sided service

Access to all maintenance related components from one side

One stop-shop

All parts from one address

24/7 monitoring

With WhisperCare, all important parameters can be read from a distance via a cell phone, tablet or computer