Blauberg Box 40x20 2E
- Capacity diagram
- Designation key
Supply and exhaust ventilation systems installed in various premises. Compatible with 400x200 up to 1000x500 mm rectangular air ducts.
Atmospheric resistant galvanized steel casing and impeller. 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. The fan is equipped with a built-in terminal box with a leaded outside sealed electrical lead-in for connection to power mains.
Two- or four-pole asynchronous motor with external rotor and centrifugal impeller with backward curved blades. Single-phase (E) or three-phase (D) motor modifications.
Smooth 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. The fan is suitable for mounting into round duct at intake flange with a round reducer (available upon separate order). If vibration-absorbing flexible 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.
|Parameter||Box 40x20 2E
|Box 40x20 2E
|Maximum air flow||258||297||l/s|
|Maximum air flow||930||1070||m³/h|
|Sound pressure level at a distance of 3 m||50||52||dBА|
|Temperature of transported air||-25...+45||-25...+45||°С|
|Ingress protection rating||IPX4||IPX4||-|
|Motor IP rating||IP44||IP44||-|
|Casing material||galvanized steel||galvanized steel||-|
|Air duct||for rectangular air ducts||for rectangular air ducts||-|
|Type||Exhaust, Supply||Exhaust, Supply||-|
|ErP||2016, 2018||2016, 2018||-|
- Selection method:
- Air capacity:
- Air capacity: --
- Pressure: ---
|Box 40x20 2E||400||440||200||240||240||500|
|Series||Flange size (width x height) [cm]||Motor
Number of poles
|Box||40х20; 50х25; 50х30; 60х30; 60х35; 100х50||2,4||E: single-phase