
Systemair MUB500EV Multibox Insulated Duct Fan 230V Single Phase AC 1137W IP54
MUB 042 500EV 235406
Multibox Insulated Duct Fan – 230V Single Phase | 1137W | IP54 | Compact, High-Performance Fan for Supply & Extract Ventilation
The Multibox Insulated Duct Fan (1137W) is a compact yet powerful solution for residential and light commercial supply or extract ventilation systems. Designed for flexible installation indoors or outdoors, this single-phase fan offers excellent airflow performance, low-noise operation, and full compliance with ErP 2018 standards. Its insulated housing, modular design, and adjustable airflow direction make it an ideal choice for projects requiring efficiency and adaptability.
- Efficient Single-Phase Design: Delivers up to 7,488 m³/h airflow with a 230V motor—ideal for residential and light commercial ventilation systems.
- Thermal & Acoustic Insulation: 30 mm internal lining reduces sound and thermal transmission for quieter, more efficient operation.
- Modular & Flexible: Removable side panels allow for directional adjustment of airflow to suit any duct layout.
- Indoor & Outdoor Use: IP54 motor protection and robust housing ensure reliability in both indoor and sheltered outdoor environments.
- ErP 2018 Compliant: Meets energy efficiency requirements and is compatible with AC or EC motor types for 50/60 Hz systems.
Technical Specification
- Air Flow Rate: Max. 7,488 m³/h
- Input Power: 1,137 W | Input Current: 5.32 A
- Voltage / Frequency: 230 V / 50 Hz | Single Phase (1~)
- Speed: 1,386 rpm
- Capacitor: 30 µF
- Temperature Range: Up to 60°C (with or without speed control)
- Protection Rating: IP54 | Insulation Class: F
- Weight: 61 kg
✅ Choose the Multibox 1137W Single-Phase Fan for compact, insulated airflow with flexible mounting and dependable performance in varied ventilation scenarios.

Please find extensive Data Sheet in the downloads section below
Range | SystemAir Multibox |
Product | Duct Fan |
Type | Insulated Duct Fan |
Wattage | 1137 W |
Ingress Protection | IP54 |
Voltage | 230 V |
Number Of Phases | Single |
Delivery Costs
Our standard delivery charge to UK mainland addresses is £5.90 ex-VAT.
Take advantage of FREE* Delivery when you spend over £100 (per order) ex-VAT.
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12.00 ex-VAT.
Solar Panels, Batteries and Inverters
Due to their size all solar panels, batteries and inverters orders up to 50 qty will be despatched on a pallet and incur a £120** ex-VAT delivery charge.
**£180 ex VAT to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes.
Click here to find out more.