Elta SMB400/4-1AC Inline Mixed Flow Box Fan - 400mm Single Phase AC

The Elta SMB400/4‑1AC Inline Mixed Flow Box Fan – 400 mm is a high‑performance duct‑mounted ventilation fan engineered for commercial and industrial applications. Part of Elta’s Multiflow SMB range, this mixed‑flow box fan combines a rugged pre‑galvanised steel casing with a backward‑curved aerofoil impeller to deliver high volume airflow with excellent efficiency and reduced acoustic emissions. Designed for easy installation with Ductmate flange connections, and suitable for temperatures up to +60 °C, this single‑phase AC unit is ideal for HVAC extract and supply systems in workshops, factories, retail spaces, and large duct networks.

Material & Build Quality

• Casing: Pre‑galvanised sheet steel construction for strength and corrosion resistance.

• Impeller: Backward‑curved aerofoil blades in a mixed‑flow design for high airflow and efficiency.

• Motor: Single‑phase AC external rotor with sealed bearings for reliable operation.

• Flange Connections: Ductmate flanges at each end for straightforward duct installation.

• Operating Temp: Rated for operation up to +60 °C, suitable for general ventilation.

Specifications

• Product Type: Inline mixed flow box fan (Multiflow SMB series)

• Model: SMB400/4‑1AC (Single‑Phase AC)

• Fan Diameter: 400 mm

• Motor Type: Single‑phase AC external rotor with sealed bearings

• Casing Material: Pre‑galvanised steel

• Impeller Type: Backward‑curved, aerofoil mixed‑flow blades

• Flow Performance: High volume with efficient static pressure performance (model dependent)

• Operating Temp: Up to +60 °C

• Installation: Inline duct mounted with flanged ends for ease of connection

• Applications: HVAC extract and supply, ventilation in workshops, industrial facilities, commercial buildings, and large duct systems