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WhisperJet Silent Series – WJ-200SILKIT

WhisperJet Silent Series

Performance Curve - WJ-200SILKIT


The WhisperJet Fan Kits combine the advanced technology of the mixed-flow in-line fan together with the high performance CC Series circular attenuators. This creates a powerful, very low noise solution for small ventilation applications. There are two types of kits available, the WhisperJet and the WhisperJet Silent series.

Combines two CC..M circular attenuators with the revolutionary high performance, low noise mixed-flow TD Silent fan. There are 4 sizes in this range extending from 150 to 315mm diameter.

  • A very quiet and compact high performance fan system.
  • All models are designed for direct connection to standard diameter circular ducting.
  • Fan body can be easily removed for maintenance without disturbing the duct system.
  • Integrated mounting foot on fan makes installation easier.
  • Fan is wired in high speed.
  • Plug and lead included for easy installation.
Models 150 and 200 - casings manufactured from reinforced, injection moulded, polypropylene plastic. Impellers are made of injection moulded plastic. Models 250 and 315 - casings manufactured from epoxy coated steel. Impellers are made of aluminium.
Type - 2-speed, squirrel cage induction motor.
Electricity supply - 230V, single-phase, 50Hz.
Bearings - sealed for life, ball.
Speed-controllable using VA type speed controllers in high speed only.
Class B Insulation, IP44.
Internal Thermal Protection
Manual-reset thermal overload protection device in accordance with mandatory requirement for in-duct fans AS/NZS60335-2-80:2004
Air flow tests to ISO5801:Part1, 1997 and AMCA 210-99
Noise to BS848:Part 2:1985

Suggested Specification

The in-line fan and silencer kits shall be of the WhisperJet Series as supplied by Fantech Pty Ltd and be of the model numbers shown on the schedule/drawings.

Casings shall be manufactured from reinforced, injection moulded, polypropylene plastic or epoxy coated steel. Impellers shall be of mixed-flow design and manufactured from injection moulded plastic or aluminium. They shall be driven by a single-phase motor with manual-reset thermal overload protection.

The fan shall include an integral mounting foot, plug and lead and specially designed support brackets to enable motor removal.

The attenuators shall be of the CC Series circular M type as designed by Fantech.

All fans shall be fully tested to ISO5801:Part1.1997 for air flow and BS848:Part 2:1985 for noise.

Technical Data - WJ-200SILKIT

SettingSpeed [rps]Avg. dBA @ 3mkWatts (Input)Amps Max.°C Approx. Weight [kg]

Sound Data

SettingType631252505001K 2K4K8K
HiInlet4849 464121 353834
LoInlet4746 483821 313330
HiOutlet6556 494422 353935
LoOutlet6056 543918 313430



*All dimensions in mm, unless otherwise stated

Wiring Diagram

Diagram shown is for single-speed only.
For 2-speed and special motors, contact Fantech for details.


Elta Group