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 40x20 4E
EAN4058448055805 - Description
- Characteristics
- Capacity diagram
- Downloads
- Designation key
- Dimensions
- Additional characteristics
- 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. MountingThe 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. |
Motor
Four- 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). |
| Parameter | Box-FI 40x20 4E | Measurement unit |
|---|---|---|
| Voltage | 230 | V |
| Phase | 1 | ˜ |
| Frequency | 50 | Hz |
| Power | 295 | W |
| Current | 1.32 | A |
| RPM | 1350 | min-1 |
| Maximum air flow | 400 | l/s |
| Maximum air flow | 1440 | m³/h |
| Sound pressure level at 3 m | 42 | dBА |
| Transported air temperature | -25...+40 | °С |
| Motor IP rating | IP44 | - |
| Ingress protection rating | IPX4 | - |
| EC motor | no | - |
| Weight | 29 | kg |
| Width | 400 | mm |
| Height | 200 | mm |
| Casing material | galvanized steel | - |
| Outdoor mounting | no | - |
| Sound-insulated casing | yes | - |
| Air duct | for rectangular air ducts | - |
| Design | centrifugal | - |
| Type | Exhaust, Supply | - |
| Mounting | Inline | - |
- Selection method:
- Air capacity:
- Pressure:
- Air capacity: --
- Pressure: ---
| 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 |
| Model | Overall dimensions [mm] | |||||||||
| B | B1 | B2 | B3 | H | H1 | H2 | H3 | L | ||
| Box-FI 40x20 4E | 400 | 420 | 440 | 470 | 200 | 220 | 240 | 360 | 500 | |
| Sound power level, A-weighted | Octave frequency bands [Hz] | LpA 3 m [dBA] | LpA 1 m [dBA] | ||||||||
| Total | 63 | 125 | 250 | 500 | 1000 | 2000 | 4000 | 8000 | |||
| LwA to inlet [dBA] | 76 | 63 | 74 | 69 | 64 | 61 | 58 | 58 | 49 | 56 | 66 |
| LwA to outlet [dBA] | 78 | 58 | 69 | 73 | 68 | 71 | 69 | 63 | 60 | 57 | 67 |
| LwA to environment [dBA] | 63 | 36 | 49 | 61 | 56 | 52 | 46 | 43 | 39 | 42 | 52 |
