• RS 70-40 L1 Sileo Rectangular Duct Fan– Backward-Curved Impeller, Speed-Controllable, 4,285 m³/h, 230 V, 480 W, Galvanised Steel, 700x400 mm
  • RS 70-40 L1 Sileo Rectangular Duct Fan– Backward-Curved Impeller, Speed-Controllable, 4,285 m³/h, 230 V, 480 W, Galvanised Steel, 700x400 mm
  • RS 70-40 L1 Sileo Rectangular Duct Fan– Backward-Curved Impeller, Speed-Controllable, 4,285 m³/h, 230 V, 480 W, Galvanised Steel, 700x400 mm
  • RS 70-40 L1 Sileo Rectangular Duct Fan– Backward-Curved Impeller, Speed-Controllable, 4,285 m³/h, 230 V, 480 W, Galvanised Steel, 700x400 mm
  • RS 70-40 L1 Sileo Rectangular Duct Fan– Backward-Curved Impeller, Speed-Controllable, 4,285 m³/h, 230 V, 480 W, Galvanised Steel, 700x400 mm
  • RS 70-40 L1 Sileo Rectangular Duct Fan– Backward-Curved Impeller, Speed-Controllable, 4,285 m³/h, 230 V, 480 W, Galvanised Steel, 700x400 mm

RS 70-40 L1 Sileo Rectangular Duct Fan– Backward-Curved Impeller, Speed-Controllable, 4,285 m³/h, 230 V, 480 W, Galvanised Steel, 700x400 mm

Regular price £1,657.81
£1,657.81
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Description
  • High Airflow: Delivers up to 4,285 m³/h for efficient ventilation in large spaces.
  • Durable Construction: Galvanised steel casing ensures long-lasting performance and corrosion resistance.
  • Maintenance-Friendly: Motor and impeller mounted on access cover for easy service.
  • Thermal Protection: Integral thermal contacts safeguard the motor from overheating.
  • Flexible Installation: Can be installed in any position with DS flexible connections; speed-controllable for customized airflow.

The RS 70-40 L1 Sileo rectangular duct fan delivers high-performance airflow of up to 4,285 m³/h while maintaining quiet and efficient operation. Designed with backward-curved impellers and a maintenance-free external rotor motor, this fan ensures reliable, long-term performance. The motor and impeller are mounted on the access cover for easy maintenance, and integral thermal contacts protect against overheating when connected to a motor protection device. Its galvanised steel casing allows installation in any position, and DS flexible connections make setup quick and simple. Ideal for ventilation in commercial, industrial, or large residential spaces, this fan combines durability, versatility, and quiet operation.


  • Weight: 34 kg
  • Material: Galvanised steel
  • Voltage: 230 V, 50 Hz, Single-phase
  • Power: 480 W
  • Dimensions: 700 mm x 400 mm
  • Max Airflow: 4,285 m³/h (1.19 m³/s)
  • Max Temperature of Transported Air: 70 °C
  • Motor Type: External rotor, maintenance-free
  • Sound Pressure Level: 54.1 dB(A) at 3 m
  • Colour: Silver (galvanised steel finish)
  • Product Code: 79388

Delivery time: 3-5 working days.


Your purchase includes a 1-year Veralis warranty, offering complete assurance in the quality and longevity of your product. From internal components to craftsmanship and performance, every part of your device is protected. Should you experience any issue during everyday use, our dedicated support team will provide quick and reliable assistance, ensuring you receive a seamless solution with minimal disruption to your comfort.



  • Whisper-Quiet Operation

    Enjoy cleaner air and consistent comfort without any distracting noise.

  • Precision Airflow Engineering

    Enjoy clean, balanced comfort throughout your space.

  • Smart Energy Optimisation

    Our systems automatically adjust their output when needed

  • Built For Modern Living

    Beautiful to look at, effortless to use, and engineered to last.

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