Domestic fans
Industrial fans
Single-room air handling units with heat recovery
Air handling units 
Smoke extraction and ventilation
Ventilation accessories
Ventilation ducts and fittings
Air distribution
Measurement and control technology
Ventilation sets and ventsBlauberg Box-FI
- Description
- Modifications
- Downloads
- Designation key
- Accessories
| Use
Supply and extract ventilation systems installed in various premises. Compatible with 400x200 up to 1000x500 mm rectangular air ducts. DesignAtmospheric resistant galvanized steel casing and impeller. The casing is heat- and sound-insulated with 50 mm mineral wool. The fan is rated for continuous operation. Fitted with standard 20 mm connecting flanges for connection to rectangular air ducts. Access cover on the casing for inspection and maintenance operations. MotorFour- or six-pole asynchronous motor with external rotor and centrifugal impeller with forward curved blades. Due to its impeller design the fan has excellent air dynamic charakteristics (high performance and pressure drop). Single-phase (E) or three-phase (D) motor modifications. Equipped with ball bearings for longer service life. Dynamically balanced impeller. Overheating protection by built-in thermal switches with leaded outside terminals for connection to external protecting controls. The thermal switch terminal leads are designed for connection to respective circuit ot the overload relay or respective terminals of the autotransformer or thyristor speed controller. Speed controlSmooth speed control with an external thyristor controller or step speed control with an external auto transformer (both available upon separate order). |
The fan is designed for mounting inside rectangular air ducts and can be installed in any position. The fan flanges are connected to the air ducts through the bolts inserted into the flange holes. Mounting to a round air duct on exhaust flange through a round pipe reducer. Available upon order. If flexible vibration-absorbing connectors are used to connect the fan to the air ducts provide their fixation to mounting structures with supports or brackets. While mounting provide enough space for accessing the cover for service operations. |
| Modification name | |
|---|---|
| Box-FI 100x50 6D | |
| Box-FI 100x50 8D | |
| Box-FI 40x20 4D | |
| Box-FI 40x20 4E | |
| Box-FI 50x25 4D | |
| Box-FI 50x25 4E | |
| Box-FI 50x25 6D | |
| Box-FI 50x25 6E | |
| Box-FI 50x30 4D | |
| Box-FI 50x30 4E | |
| Box-FI 50x30 6D | |
| Box-FI 50x30 6E | |
| Box-FI 60x30 4D | |
| Box-FI 60x30 4E | |
| Box-FI 60x30 6D | |
| Box-FI 60x30 6E | |
| Box-FI 60x35 4D | |
| Box-FI 60x35 6D | |
| Box-FI 60x35 6E | |
| Box-FI 70x40 4D | |
| Box-FI 70x40 6D | |
| Box-FI 80x50 4D | |
| Box-FI 80x50 6D | |
| Box-FI 80x50 8D | |
| Box-FI 90x50 6D | |
| Box-FI 90x50 8D |
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| Series | Flange size (width x height) [cm] | Motor Number of poles |
Phase |
| Box-FI | 40x20; 50x25; 50x30; 60x30; 60x35; 70x40; 80x50; 90x50; 100x50 | 4; 6 | E: single-phase D: three-phase |
