
Systemair MUB400EV Multibox Insulated Duct Fan 230V Single Phase AC 470W IP54
MUB 042 400EV 235403
Multibox Insulated Duct Fan – 230V Single Phase | 470W | IP54 | Compact, Quiet Fan for Supply & Extract Ventilation
The Multibox Insulated Duct Fan (470W) offers efficient and quiet ventilation for residential or light commercial applications. Designed with 30 mm acoustic and thermal insulation, it provides reliable airflow performance while maintaining low sound levels. With a modular construction, flexible airflow direction, and IP54 protection, this fan is ideal for both indoor and sheltered outdoor installations.
- Quiet & Efficient Operation: Delivers up to 4,182 m³/h airflow with low noise output—ideal for smaller spaces or noise-sensitive areas.
- Insulated for Comfort: 30 mm thermal and acoustic lining ensures efficient, low-noise operation with reduced heat loss.
- Modular & Adaptable: Removable side panels allow airflow direction to be tailored to the duct system layout for flexible installation.
- Indoor/Outdoor Compatibility: IP54 motor protection allows for installation in protected external locations as well as inside plant rooms or cupboards.
- ErP 2018 Compliant: Energy-efficient and compliant with European ErP regulations; available with both AC and EC motors for 50/60 Hz systems.
Technical Specification
- Air Flow Rate: Max. 4,182 m³/h
- Input Power: 470 W | Input Current: 2.37 A
- Voltage / Frequency: 230 V / 50 Hz | Single Phase (1~)
- Speed: 1,345 rpm
- Capacitor: 9 µF
- Temperature Range: Up to 60°C (with or without speed control)
- Protection Rating: IP54 | Insulation Class: F
- Weight: 48 kg
✅ Choose the Multibox 470W Fan for compact, low-noise, and insulated ventilation in domestic or light commercial environments.

Please find extensive Data Sheet in the downloads section below
Range | SystemAir Multibox |
Product | Duct Fan |
Type | Insulated Duct Fan |
Wattage | 470 W |
Ingress Protection | IP54 |
Voltage | 230 V |
Number Of Phases | Single |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- STANDARD DELIVERY – 2–3 Working Days From Despatch (subject to stock availability) - £4.99 inc-VAT. (£4.16 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.