Elta SMB550/4-1AC is a square duct-mounted mixed-flow fan designed to move high air volumes efficiently. This 550 mm model is configured as AC 4-pole single phase. It is intended for high-volume commercial and industrial ducted supply or extract ventilation.
Elta SMB550/4-1AC features and benefits
- A three-dimensional mixed-flow impeller combines strong airflow with low acoustic emissions.
- Lightweight galvanised construction and Ductmate flanges simplify duct installation.
- AC motor variants can be paired with suitable transformer speed controllers.
- The square casing suits commercial and industrial supply or extract ductwork.
Model specification
- Manufacturer: Elta
- Range: MULTIFLOW SMB
- Product code: SMB550/4-1AC
- Nominal size: 550 mm
- Configuration: AC 4-pole single phase
- Warranty: 12-month manufacturer warranty
Check the performance, electrical, sound and dimensional information in the technical document before ordering. If you are replacing an existing fan, match the complete product code and electrical supply.
Choosing the correct MULTIFLOW SMB fan
Confirm the required airflow and system resistance before selecting a fan. The duct connection, phase, motor type and any terminal-box or spigot suffix must also match the installation. A similar-looking model code can represent a different electrical supply or connection arrangement, so use the full code SMB550/4-1AC when comparing the fan with a schedule, drawing or existing unit.
DuctFix supplies ventilation equipment to installers throughout the UK. If the duty point or product code is uncertain, send us the required airflow, pressure and electrical supply and we can help identify the appropriate fan and compatible control before purchase.
Technical documents
Need help confirming the correct model or controller? Contact DuctFix or browse the Elta box fan range.
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