• Casing in galvanized steel sheet with fi xing fl anges of standardized dimensions.
• Single-phase and three-phase electric external rotor motor, IP44, class B/F, with internal thermal protection, suitable for speed control (using the suitable speed regulators shown in this catalogue).
• Backward curved impeller for models 4x2, 5x25 and 5x3, forward curved impeller for models 6x3, 6x35 and 7x4
• External electric connection box, in a self-extinguishing techno-polymeric box, resistant to atmospheric agents with IP55 protection.

The AxB series represents and easy and not expensive solution for the installation of centrifugal fans in ducted systems. It is designed for a practical and quick installation into rectangular section ducted systems. The series foresees models with 2,4 and 6 poles, three-phase and single-phase motors. The external rotor motor, perfectly speed controllable, is cooled by the airfl ow itself and does not exceed the dimensions of the fan casing. The impeller is single inlet backward curved for models 4x2, 5x25 and 5x3 and forward curved for the other models.
The casing is fl anged at both ends for simple duct fi tting. The electrical wirings are hosted in a suitable box placed outside the casing for an easy connection and accessibility. This series is suitable to convey clean air with a max. temperature of 50°C.