BESB
Ventilation box fan
Box fan with EC motor – available in seven sizes. Low energy consumption, low sound and noise level and low service costs.
Box fan with EC motor – available in seven sizes. Low energy consumption, low sound and noise level and low service costs.
| Variants | EC motor | Overload protection |
|---|---|---|
| BESB25041EC2 | EC motor with integral VSD | Integrated in motor control |
| BESB25041EC2OD, Outdoor | EC motor with integral VSD | Integrated in motor control |
| BESB25041EC2S | EC motor with integral VSD | Integrated in motor control |
| BESB31541EC2 | EC motor with integral VSD | Integrated in motor control |
| BESB31541EC2OD, outdoor | EC motor with integral VSD | Integrated in motor control |
| BESB31524EC2S | EC motor with integral VSD | Integrated in motor control |
| BESB40041EC2 | EC motor with integral VSD | Integrated in motor control |
| BESB40041EC2OD, outdoor | EC motor with integral VSD | Integrated in motor control |
| BESB40041EC2S | EC motor with integral VSD | Integrated in motor control |
| BESB50041EC2 | EC motor with integral VSD | Integrated in motor control |
| BESB50041EC2OD, outdoor | EC motor with integral VSD | Integrated in motor control |
| BESB50043EC | EC motor with integral VSD | Integrated in motor control |
| The BESB box ventilator is a low-energy fan | EC motor with integral VSD | Integrated in motor control |
| BESB50041EC2S | EC motor with integral VSD | Integrated in motor control |
| Variants | Conditions |
|---|---|
| BESB25041EC2 | Conditions:> * I is the maximum current drawn in the entire regulation range – or full load current if this is greater> ** P1 is the maximum power drawn from the mains, where P2 is the power rating of the motor.> Specified data is at t = 20°C> Density = 1.2 kg/m3> Medium temperature: min. -12°C, max. +80°C> Ambient temperature: max. +40°C> Pressure ratio: < 1.11 |
| BESB50043EC | Conditions: * I is the maximum absorbed current throughout the control range - or the full load current if this is larger ** P1 is the maximum absorbed power from the mains supply, where P2 is the motor's nominal output. Stated data are for t = 20°C Density = 1.2 kg/m3 Gas temperature: min. -12°C, max. +80° C Ambient temperature: Max. +40° C Pressure ratio: < 1,11 other points in acc. with EC327/2011 - see product instructions |
| The BESB box ventilator is a low-energy fan | Conditions: * I is the maximum absorbed current throughout the control range - or the full load current if this is larger ** P1 is the maximum absorbed power from the mains supply, where P2 is the motor's nominal output. Stated data are for t = 20°C Density = 1.2 kg/m3 Gas temperature: min. -12°C, max. +80° C Ambient temperature: Max. +40° C Pressure ratio: < 1,11 other points in acc. with EC327/2011 - see product instructions |
The box fan can be mounted in different positions, however, space for insulating the ducts must be taken into account. In installation options B and D, with the door facing upwards, special fittings must be used to hold the door (accessory). The box fan should not be screwed onto the supporting base. The base must be stable and vibration free, with no sagging. The outdoor model can be installed according to options A and B. BESB560, 630, 631 and 710 are only available as option A.
| Variants | A (mm) | B (mm) | C (mm) | D (mm) | G (mm) | H (mm) | J (mm) | K (mm) | L (mm) | M (mm) | Weight (kg) | E Ø (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BESB25041EC2 | 785 mm | 625 mm | 325 mm | 195 mm | 800 mm | 350 mm | 480 mm | 185 mm | 125 mm | 60 mm | 52 kg | 250 mm |
| BESB25041EC2OD, Outdoor | 785 mm | 625 mm | 325 mm | 195 mm | 800 mm | 350 mm | 480 mm | 185 mm | 125 mm | 60 mm | 52 kg | 250 mm |
| BESB25041EC2S | 785 mm | 625 mm | 325 mm | 195 mm | 800 mm | 350 mm | 480 mm | 185 mm | 125 mm | 60 mm | 52 kg | 250 mm |
| BESB31541EC2 | 785 mm | 675 mm | 355 mm | 195 mm | 800 mm | 385 mm | 455 mm | 205 mm | 125 mm | 60 mm | 57 kg | 315 mm |
| BESB31541EC2OD, outdoor | 785 mm | 675 mm | 355 mm | 195 mm | 800 mm | 385 mm | 455 mm | 205 mm | 125 mm | 60 mm | 57 kg | 315 mm |
| BESB31524EC2S | 785 mm | 675 mm | 355 mm | 195 mm | 800 mm | 385 mm | 455 mm | 205 mm | 125 mm | 60 mm | 57 kg | 315 mm |
| BESB40041EC2 | 895 mm | 775 mm | 390 mm | 195 mm | 800 mm | 440 mm | 525 mm | 250 mm | 125 mm | 80 mm | 73 kg | 400 mm |
| BESB40041EC2OD, outdoor | 895 mm | 775 mm | 390 mm | 195 mm | 800 mm | 440 mm | 525 mm | 250 mm | 125 mm | 80 mm | 73 kg | 400 mm |
| BESB40041EC2S | 895 mm | 775 mm | 390 mm | 195 mm | 800 mm | 440 mm | 525 mm | 250 mm | 125 mm | 80 mm | 73 kg | 400 mm |
| BESB50041EC2 | 990 mm | 860 mm | 425 mm | 285 mm | 850 mm | 485 mm | 580 mm | 300 mm | 170 mm | 80 mm | 88 kg | 500 mm |
| BESB50041EC2OD, outdoor | 990 mm | 860 mm | 425 mm | 285 mm | 850 mm | 485 mm | 580 mm | 300 mm | 170 mm | 80 mm | 88 kg | 500 mm |
| BESB50043EC | 990 mm | 860 mm | 425 mm | 285 mm | 850 mm | 485 mm | 580 mm | 300 mm | 170 mm | 80 mm | 91 kg | 500 mm |
| The BESB box ventilator is a low-energy fan | 990 mm | 860 mm | 425 mm | 285 mm | 850 mm | 485 mm | 580 mm | 300 mm | 170 mm | 80 mm | 91 kg | 500 mm |
| BESB50041EC2S | 990 mm | 860 mm | 425 mm | 285 mm | 850 mm | 485 mm | 580 mm | 300 mm | 170 mm | 80 mm | 88 kg | 500 mm |
| BESB56043EC | 1120 mm | 960 mm | 455 mm | 277 mm | 1050 mm | 540 mm | 470 mm | 833 mm | 170 mm | 80 mm | 560 mm | |
| BESB63043EC | 1255 mm | 1085 mm | 490 mm | 277 mm | 1100 mm | 600 mm | 525 mm | 936 mm | 170 mm | 80 mm | 630 mm | |
| BESB63143EC | 1255 mm | 1085 mm | 490 mm | 295 mm | 1100 mm | 600 mm | 525 mm | 936 mm | 170 mm | 80 mm | 630 mm | |
| BESB71043EC | 1395 mm | 1220 mm | 540 mm | 295 mm | 1150 mm | 670 mm | 580 mm | 1035 mm | 170 mm | 80 mm | 710 mm |
| Variants | Max. airflow (m³/h) | Minimum airflow |
|---|---|---|
| BESB25041EC2 | 2260 m³/h | 350 |
| BESB25041EC2OD, Outdoor | 2260 m³/h | 350 |
| BESB25041EC2S | 2260 m³/h | 350 |
| BESB31541EC2 | 3590 m³/h | 570 |
| BESB31541EC2OD, outdoor | 3590 m³/h | 570 |
| BESB40041EC2 | 5720 m³/h | 950 |
| BESB40041EC2OD, outdoor | 5720 m³/h | 950 |
| BESB40041EC2S | 5720 m³/h | 950 |
| BESB50041EC2 | 7300 m³/h | 1180 |
| BESB50041EC2OD, outdoor | 7300 m³/h | 1180 |
| BESB50043EC | 10800 m³/h | 1330 |
| The BESB box ventilator is a low-energy fan | 10800 m³/h | 1330 |
| BESB56043EC | 13600 m³/h | 1465 |
| BESB63043EC | 19100 m³/h | 1940 |
| BESB63143EC | 22500 m³/h | 1880 |
| BESB71043EC | 23300 m³/h | 2290 |
| Variants | Frequency (Hz) | Max. current (A) | Voltage (V) | Engine power (kW) |
|---|---|---|---|---|
| BESB25041EC2 | 50/60 Hz | 1,2 A | 1x230 V | 0,18 kW |
| BESB25041EC2OD, Outdoor | 50/60 Hz | 1,2 A | 1x230 V | 0,18 kW |
| BESB25041EC2S | 50/60 Hz | 1,2 A | 1x230 V | 0,18 kW |
| BESB31541EC2 | 50/60 Hz | 2,2 A | 1x230 V | 0,37 kW |
| BESB31541EC2OD, outdoor | 50/60 Hz | 2,2 A | 1x230 V | 0,37 kW |
| BESB31524EC2S | 50/60 Hz | 2,2 A | 1x230 V | 0,37 kW |
| BESB40041EC2 | 50/60 Hz | 4,5 A | 1x230 V | 0,75 kW |
| BESB40041EC2OD, outdoor | 50/60 Hz | 4,5 A | 1x230 V | 0,75 kW |
| BESB40041EC2S | 50/60 Hz | 4,5 A | 1x230 V | 0,75 kW |
| BESB50041EC2 | 50/60 Hz | 8,5 A | 1x230 V | 1,1 kW |
| BESB50041EC2OD, outdoor | 50/60 Hz | 8,5 A | 1x230 V | 1,1 kW |
| BESB50043EC | 50/60 Hz | 3,8 A | 3x400 V | 2,2 kW |
| The BESB box ventilator is a low-energy fan | 50/60 Hz | 3,8 A | 3x400 V | 2,2 kW |
| BESB50041EC2S | 50/60 Hz | 8,5 A | 1x230 V | 1,1 kW |
| BESB56043EC | 50/60 Hz | 9,4 A | 3x400 V | 4,1 kW |
| BESB63043EC | 50/60 Hz | 13,7 A | 3x400 V | 5,9 kW |
| BESB63143EC | 50/60 Hz | 24,1 A | 3x400 V | 11,1 kW |
| BESB71043EC | 50/60 Hz | 24,1 A | 3x400 V | 11,1 kW |
| Variants | Ventilation energy class - Average climate |
|---|---|
| BESB25041EC2 | D |
| BESB25041EC2OD, Outdoor | D |
| BESB25041EC2S | D |
| BESB31541EC2 | D |
| BESB31541EC2OD, outdoor | D |
| BESB31524EC2S | D |
| BESB40041EC2 | D |
| BESB40041EC2OD, outdoor | D |
| BESB40041EC2S | D |
| BESB50041EC2 | D |
| BESB50041EC2OD, outdoor | D |
| BESB50043EC | D |
| The BESB box ventilator is a low-energy fan | D |
| BESB50041EC2S | D |
| BESB56043EC | D |
| BESB63043EC | D |
| BESB63143EC | D |
| BESB71043EC | D |
BESB box fans are made from Aluzinc® AZ185 class C4 in accordance with EN/ISO12944-2 and insulated with 50-mm mineral wool.
As standard BESB can handle a gas temperature of up to 80°C, but in an OD version can withstand temperatures right up to 200 C.
The fan wheel is a B-wheel. For BESB250, BESB315, BESB400, and BESB500, the wheel is made of cast aluminium. For BESB560, BESB630, BESB631, and BESB710, the wheel is made of steel.
It has backward-curved blades, which ensure low energy consumption, and also has the advantage that dirt does not easily get stuck and reduce the wheel's efficiency.
The spigots on BESB have rubber gaskets, with a transition piece on the extract side specially developed for minimum pressure drop.
To minimise noise and vibration, the box fan is fitted as standard with efficient vibration dampers mounted on brackets.
The BESB250-500 box fan is mounted with split hinges, which enable the door to be removed for installation and servicing, even in very confined conditions or for transport to difficult locations.
The BESB box fan is designed to transport air with an air humidity of less than 80% RH.
BESB is available in a special OD variant with a condensation outlet for air with over 80% RH.
If there are problems with transporting the BESB box fans in one piece, they can be ordered as SPLIT execution.
The box fans must be assembled by a fitter approved by EXHAUSTO
The box fans must be tested before the fitter hands over the fan
BESB560, BESB630, BESB631 and BESB710 cannot be obtained as SPLIT
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