Ventorn AMF1 Single Phase Silent Box Fan with 5-Step Controller

Ventorn AMF1 Single Phase Silent Box Fan – with 5-Step Speed Controller

UK-made acoustic box fan with a single-phase motor and a backward-curved centrifugal impeller, for quiet extract or supply in commercial kitchens, restaurants and plant rooms. Runs directly from a standard single-phase 230V supply and is supplied with a matching 5-step auto-transformer speed controller.

Looking for fully variable 0–100% speed control? See our Ventorn Box Fan with inverter.

Key Features

• Single-phase motor: Plugs into a standard 230V supply — no three-phase power or inverter needed
• 5-step speed control: Auto-transformer controller included, sized to each fan (7A, 10A or 14A)
• Low noise: 25mm thick removable acoustic panels
• Backward-curved impeller: High-density aluminium impeller, dynamically balanced to ISO 10816 (two-plane, Class 1)
• Flexible installation: Variable discharge direction (90°–180°); panels remove easily for installation in any orientation and for cleaning
• Durable casing: Corrosion-resistant aluminium casing and corners
• Extract or supply: Can be used for either extract or fresh air supply
• Made in the UK — CE and UKCA marked

What's Included

• 450mm: AMF1/450 fan + 7A 5-step controller
• 500mm: AMF1/500 fan + 10A 5-step controller
• 560mm: AMF1/560 fan + 14A 5-step controller

Technical Data – 450mm (AMF1/450)

• Max airflow: 6,403 m³/h
• Input power: 1.0 kW
• Full load current: 4.4 A
• Supply: 230V, single phase, 50 Hz
• Impeller speed: 1,450 rpm
• Motor: 4-pole AC, IE2 efficiency, with thermal protection
• Case breakout noise: 60 dB(A)
• Box size: 670mm (external square dimension)
• Weight: 64 kg
• Protection: IP54 fan, IP20 controller
• Insulation class: F
• Maximum ambient temperature: 60°C
• Controller output steps: 80V, 105V, 135V, 170V, 230V

Full technical data for the 500mm and 560mm single-phase models is available on request — contact us before ordering if you need exact performance figures.

Not sure which size you need? Send us your canopy size and duct run and we'll recommend the right model.