CJBDT, CBDT double-inlet centrifugal smoke extraction fans 400 °C/2 h, up to ~11 800 m³/h
Country: · Model: CJBDT, CBDT
The CJBDT and CBDT direct-drive double-inlet centrifugal fans operate directly in the fire zone in the modes 400 °C/2 h and 300 °C/2 h (EN 12101-3, certificate 0370-CPR-0580). The airflow in the table reaches about 11 800 m³/h for CJBDT and 8000 m³/h for CBDT.
- Type
- direct-drive double-inlet centrifugal fan, operation in the fire zone
- Fire resistance
- 400 °C/2 h and 300 °C/2 h to EN 12101-3, certificate 0370-CPR-0580
- Sizes
- 9/9 … 18/18 (per datasheet)
- Maximum airflow
- CJBDT — up to ~11 800 m³/h; CBDT — up to ~8000 m³/h
Technical specifications
| Type | direct-drive double-inlet centrifugal fan, operation in the fire zone |
|---|---|
| Fire resistance | 400 °C/2 h and 300 °C/2 h to EN 12101-3, certificate 0370-CPR-0580 |
| Sizes | 9/9 … 18/18 (per datasheet) |
| Maximum airflow | CJBDT — up to ~11 800 m³/h; CBDT — up to ~8000 m³/h |
| Impeller | forward-curved blades, galvanized steel |
| Motor | class H, S1/S2, IP55, 1 or 2 speeds |
| Power supply | 1~ 230 V 50 Hz; 3~ 230/400 V (up to 3 kW), 400/690 V (above 3 kW) |
| S1 temperature | −25…+60 °C |
| Casing | CJBDT — Magnelis steel box, corrosion category C5 (ISO 12944), external terminal box, vibration isolators; CBDT — galvanized steel |
| Versions | CJBDT/ALS-FE — eco unit with electrostatic filter (F400) |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
CBDT is an open fan with a galvanized steel casing and an impeller with forward-curved blades, and the terminal box is external. CJBDT is an extraction unit in which such a fan is installed in a box made of Magnelis steel of corrosion resistance category C5 to ISO 12944, with vibration isolators. A version with a single-phase motor is possible, and a round or vertical outlet is made on request. Class H motors are rated for duties S1 and S2, have ball bearings, IP55 protection and one or two speeds. The supply is single-phase 230 V 50 Hz or three-phase 230/400 V up to 3 kW and 400/690 V above 3 kW. In S1 duty the air may be at −25 to +60 °C, and in S2 duty at 300 or 400 °C for two hours. Sizes range from 9/9 to 18/18, with 4-pole and 6-pole versions.
How to choose
The fan is built into a duct network, so the size is selected by airflow, with CJBDT giving up to 11 800 m³/h and CBDT up to 8000. When a ready-made unit in a casing is needed for a serviced area, for example a car park, corridor, lobby or restaurant, CJBDT is taken. For extraction from professional kitchens where the air contains grease and smoke, there is CJBDT/ALS-FE, an eco unit with electrostatic filtration for 400 °C/2 h. If a higher airflow is needed, look at the TCR centrifugal fans.
Request a price and lead time
CJBDT, CBDT double-inlet centrifugal smoke extraction fans 400 °C/2 h, up to ~11 800 m³/h. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
At what temperatures does the CJBDT work in the fire zone?
400 °C and 300 °C for 2 h each, certificate to EN 12101-3 No. 0370-CPR-0580. In continuous S1 duty the air is from −25 to +60 °C.
How does CJBDT differ from CBDT?
CBDT is an open fan in a galvanized steel casing. CJBDT is placed in a box of Magnelis steel of category C5 with vibration isolators.
What is the maximum airflow of CJBDT and CBDT?
According to the tables, up to 11 800 m³/h for CJBDT and up to 8000 m³/h for CBDT.
What is the motor power supply?
Single-phase 230 V 50 Hz or three-phase 230/400 V up to 3 kW, and above 3 kW 400/690 V. The motors are class H, IP55.
Is there a version for kitchens with greasy air?
Yes, CJBDT/ALS-FE with an electrostatic filter, certified for 400 °C/2 h.
REQUEST
Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.


