Mixed-Flow Inline Fan Boost I 250 V

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Dimensions and technical details

220-240 V ~ 50 Hz
Housing colour: silver
Housing material: galvanised steel
30mm acoustic material layer for sound and heat insulation
Nominal size: 250 mm
Bearings: ball bearing
Speed levels: 3
Wattage: 144 / 173 / 188 W
Current consumption: 0.7 / 0.81 / 0.84 A
Revolutions per minute: 2292 / 2626 / 2876
Airflow rate: 1007 / 1404 / 1670 m³/h
Airflow rate: 280 / 390 / 464 l/s
Sound pressure Lp-3m: 38 / 43 / 45 dB(A)
Diameter: 337 mm
Diameter with terminal box: 389 mm
Length: 739 mm
Diameter duct connection : 249 mm
Weight: 9.8 kg
Max. temperature of transported air: -25 to +55°C
IP rating: IPX4
IP rating motor: IP20
Integrated speed control: 3 speeds
Mounting options: any position
Application: ventilation systems requiring high pressure and low noise level
Ideal for air extraction in damp rooms of residential and commercial properties

Boost-I 250 V – Sound-insulated semi-radial inline duct fan with three-speed controller 250 mm

The Boost-I 250 V delivers the balance every modern system needs: quiet operation with real pressure head for supply and extract duties. Its galvanised-steel casing is wrapped in a continuous 30 mm acoustic lining that absorbs motor and airflow noise before it reaches the ductwork, refining the plant’s acoustic signature. A semi-radial impeller keeps airflow stable against resistance, while precision ball bearings support long-life reliability. Rated IPX4 and designed for −25 to +55 °C, this sound-insulated inline duct fan 250 mm performs consistently in humidity-prone, noise-sensitive zones. The integrated three-speed switch lets you match ventilation to live conditions – from base ventilation to peak demand – without overspecifying the system.

On duty, the quiet high-pressure extract fan shows its strengths: up to 1670 m³/h at a maximum 2876 rpm maintains air changes on longer runs, with sound pressure contained to a modest 45 dB(A) at 3 m. The 249 mm spigot integrates directly with standard round ducting, and all-position installation speeds up retrofits and new builds alike. Whether you need a pressure-strong duct fan to support filters, dampers or heat-recovery components, the Boost-I 250 V provides controllable performance that helps reduce humidity and odour loads while improving overall indoor air quality. Robust construction, semi-radial aerodynamics and the flexible three-speed controller combine to deliver a dependable, installation-friendly upgrade where high pressure and low noise are non-negotiable.

Zone	Country	Shipping	Free shipping on ordes over
UK	United Kingdom	free	free
European Union	Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, France, Finland, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Monaco, Netherlands, Poland, Portugal, Romania, Sweden, Slovakia, Slovenia, Spain	free	free
Non-EU	Albania, Belarus, Bosnia and Herzegovina, Canary Islands, Gibraltar, Guernsey, Iceland, Jersey, Liechtenstein, Macedonia, Moldavia, Montenegro, Norway, Serbia, Switzerland, Ukraine	free	free
Australia	Australia	£ 99.00	not applicable
South Africa	South Africa	£ 109.00	not applicable
W4	Egypt, Israel, Morocco, Russia, Turkey	£ 45.00	not applicable
W5 and W5.1	Bahrain, Canada, China, India, Japan, Kazakhstan, Kuwait, Maledives, Mexico, Mongolia, Philippines, Qatar, Republic of Korea, Saudi Arabia, Singapore, Sri Lanka, Thailand, United Arab Emirates, USA, Vietnam	£ 110.00	not applicable
W6	Argentinia, Barbados, Benin, Botswana, Brasil, Burkina Faso, Caiman Islands, Cameroon, Chile, French-Guayana, French-Polynesien, Ghana, Guadeloupe, Hongkong, Ivory Coast, Macau, Mali, Martinique, Mauritius, New Caledonia, New Zealand, Nigeria, Réunion, Saint Barthelemy, Sao Tomé und Príncipe, Seychelles, Vanuatu	£ 165.00	not applicable

Fans: Multi-purpose devices

Patio, garden, bathroom and commercial use

Small to large rooms and halls

Improving Air Quality

Sanitary & washroom equipment

Protection from Insects

Light bulbs

Dimensions and technical details

Boost-I 250 V – Sound-insulated semi-radial inline duct fan with three-speed controller 250 mm

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