THT, THT/CL, THT/IE5 axial smoke extraction fans F400/F300 (400 °C/2 h), up to ~199 000 m³/h
Country: · Model: THT / THT/CL / THT/IE5
Ducted axial smoke extraction fans THT, THT/CL and THT/IE5, approved to EN 12101-3 in classes F400 (400 °C for 2 hours) and F300 (300 °C for 2 hours). Impeller diameter 400–1600 mm, the largest models deliver up to 199 000 m³/h. They work directly in the fire zone and ventilate the building every day in normal mode.
- Type
- ducted axial smoke extraction fan, operation in the fire zone (immersed)
- Fire resistance
- F400 (400 °C/2 h) and F300 (300 °C/2 h) per EN 12101-3, certificate 2797 CPR 840443
- Impeller diameter
- 400–1600 mm (sizes 40–160, per the THT/CL datasheet)
- Motor power
- 0.55–75 kW per datasheet table; IE4 for 75–200 kW (per series description)
Technical specifications
| Type | ducted axial smoke extraction fan, operation in the fire zone (immersed) |
|---|---|
| Fire resistance | F400 (400 °C/2 h) and F300 (300 °C/2 h) per EN 12101-3, certificate 2797 CPR 840443 |
| Impeller diameter | 400–1600 mm (sizes 40–160, per the THT/CL datasheet) |
| Motor power | 0.55–75 kW per datasheet table; IE4 for 75–200 kW (per series description) |
| Maximum airflow | up to ~199 000 m³/h (THT/CL-160, per datasheet) |
| Motor | class H, S1 continuous duty, S2 emergency duty; IP55; 1 or 2 speeds; IE3 from 0.75 kW, IE5 in THT/IE5 |
| Power supply | 3~ 230/400 V 50 Hz (up to 3 kW), 400/690 V 50 Hz (above 3 kW) |
| Handled air temperature, S1 | −25…+40 °C (up to +50 °C permitted) |
| Impeller | cast aluminium, adjustable blade angle; 100% reversible on request |
| Coating | polyester powder paint, cured at 190 °C |
| Versions | THT: short casing; THT/CL: long casing with external terminal box and access hatch; THT/IE5, THT/CL/IE5: IE5 motors; ATEX cat. 2 on request |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The casing is tubular, made of sheet steel, and the cast aluminium impeller has an adjustable blade angle. Air flows from the motor to the impeller; reverse direction or a fully reversible impeller are available on request. Class H motors are rated for continuous duty S1 and emergency duty S2, and have ball bearings, IP55 protection and one or two speeds. From 0.75 kW the motors meet class IE3, in the 75–200 kW range they are IE4, and THT/IE5 and THT/CL/IE5 (F400 only) have IE5 motors. Supply is 230/400 V 50 Hz up to 3 kW and 400/690 V 50 Hz above 3 kW, with power of 0.55–75 kW per the table. Sizes 40–160 are made for 2, 4, 6 and 8 poles, and two-speed 2/4, 4/8 and 6/12 versions exist. Air temperature in S1 mode is from −25 to +40 °C, and up to +50 °C in a hot climate. The anticorrosion coating is polyester resin cured at 190 °C.
How to choose
THT has a short casing, THT/CL a long casing with an external terminal box and inspection hatch, and the IE5 versions are taken when the motor's energy efficiency class matters. The size is selected by airflow and pressure in the QuickFan program. If the fan has to stand in a soundproof box, look at CJTHT for 158 500 m³/h, for tunnels and metro THT-TM up to 3550 mm in diameter, and for car parks THT/IMP.
Request a price and lead time
THT, THT/CL, THT/IE5 axial smoke extraction fans F400/F300 (400 °C/2 h), up to ~199 000 m³/h. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What fire resistance class do THT fans have?
F400 (400 °C for 2 hours) and F300 (300 °C for 2 hours) per EN 12101-3, certificate 2797 CPR 840443.
Can THT be used for daily ventilation?
Yes, the series is used both for daily ventilation and for emergency removal of smoke and hot gases. The motor is rated for S1 and S2 modes.
What is the maximum airflow of THT/CL?
About 199 000 m³/h for the largest models (THT/CL-160) with a 1600 mm impeller diameter.
What energy efficiency class do THT motors have?
IE3 from 0.75 kW, IE4 for 75–200 kW, IE5 in the THT/IE5 and THT/CL/IE5 versions, which exist only in class F400.
Is there an ATEX version?
ATEX category 2 and a vertical axis are available on request.
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.