UNOBOX Square Duct Centrifugal Fans
Ideal for Commercial kitchens
UNOBOX centrifugal box fans, powered by external rotor motors, offer exceptional performance and versatility. Fitted with high efficiency backward curved impellers, available from size 355mm up to 710mm, the UNOBOX series can provide airflows up to 19,500 m³/h. Airflow output can be automated using pressure and airflow sensors instead of speed regulation. Request a quote or discuss your application with us in further detail. We’re here to support you with an accurate fan selection that meets all your requirements.
Provides Low Noise and Efficient Solutions
Due to its reinforced box construction and panels insulated with non-combustible, sound and heat-insulated glass wool mats, UNOBOX fans can offer a low noise, efficient solution. Typical applications include commercial and industrial kitchen ventilation, supermarket ventilation, workshop extraction, swimming pool ventilation and warehouse ventilation.
UNOBOX: Centrifugal fan with backward curved impeller
Designed for inline installation, UNOBOX fans are suitable for:
•Commercial and industrial kitchen ventilation
•Supermarket ventilation
•Workshop extraction
•Swimming pool ventilation
•Warehouse ventilation
•Garage ventilation
•Versions with Electronically Commutated (EC) motors
•Versions for high temperatures (+110°C) ideal for extracting hot air from commercial kitchens
Technical Data
Unobox fans up to size 450mm have backward curved centrifugal impellers made of plastic with galvanised steel support plates. Fans from 500mm have backward curved high-performance impellers made of aluminium. The impellers are mounted directly on the rotors of the external rotor motors and are dynamically balanced on two levels with the rotor according to quality level G 2,5 / G 6,3 as per DIN ISO 21940-11. UNOBOX units are suitable for outdoor installation with appropriate accessories.
| Fan Type | Voltage (V) |
Frequency (Hz) |
Input Power (kW) |
Rated Current (A) |
Speed (rpm) |
Max Temp (°C) |
IP Rating (IP) |
|---|---|---|---|---|---|---|---|
| GKHM 355-CIG.102.5HF IE Gen3 (IE5) | 3~ 380-480 | 50 / 60 | 2.33 | 3.7 at 400V | 3120 | 40 | IP54 |
| GKHM 400-CIG.114.6FF IE Gen3 (IE5) | 3~ 380-480 | 50 / 60 | 4.48 | 7 at 400V | 3170 | 40 | IP54 |
| GKHM 450-CIG.128.6IF IE Gen3 (IE4) | 3~ 380-480 | 50 / 60 | 5.9 | 9.05 at 400V | 2950 | 40 | IP54 |
| GKHM 500-CIG.143.6NA IE Gen3+ (IE4) | 3~ 380-480 | 50 / 60 | 7.48 | 11.4 at 400V | 2625 | 40 | IP54 |
| GKHM 560-CIG.160.6NA IE Gen3+ (IE4) | 3~ 380-480 | 50 / 60 | 6.85 | 10.7 at 400V | 2125 | 40 | IP54 |
| GKHM 630-CIG.180.6NA IE Gen3+ (IE4) | 3~ 380-480 | 50 / 60 | 5.1 | 7.88 at 400V | 1580 | 40 | IP54 |