MUB/T-EC - EC Thermo Multibox - Rectangular & Square Duct fans - Fans & Accessories - Products - Systemair


Self supporting aluminium frame construction with highly impact resistant PA6 corners. 20 mm glass wool acoustic and thermal insulation. Integrated condensation tray with built-in 1” drain plug.


Energy-saving, highly efficient EC external rotor motors. Motor outside the airstream.

Impeller geometry

Optimised and highly efficient backward curved high density impellers manufactured from aluminium for optimum efficiency.

Output control

100 % controllable via a 0-10 V signal. The fans are equipped with a potentiometer (0-10 V). This is installed in the terminal box. The speed can be easily adjusted should the installation require a different operation point.

Motor protection

The motor protection is integrated in the motor electronics.