ATT Smoke Extraction Motors are specifically designed to meet demanding and critical industrial applications such as fire emergencies and more. Smoke extraction systems are employed in a wide range of environments including large buildings, shopping malls, factories, warehouses, enclosed parking lots, tunnels, among others.
This motor is made to provide a life-saving role through fastest possible extraction and clearance of toxic fumes and smoke at high temperature during emergencies. Incorporating these smoke extraction motors into your rescue or emergency systems may mitigate damage to property and financial loss by preventing the accumulation of smoke, reducing environment temperatures and the delay in rate of fire spreading.
ATT Smoke Extraction Motors are compliant to EN 12101-3 which determines the standard for “Smoke and Heat Control Systems”. All ATT Smoke Extraction Motors are tested and certified to operate for two hours at a temperature of 250°C, 300°C and 400°C.
Type of Motor
Totally Enclosed Air Over (TEAO) Squirrel Cage Cast Iron Induction Motor
IEC 60034-1; EN 12101-3
Voltage and Frequency
Standard stock available are:220-240/380-415V/50Hz for 2.2 KW & below
380-415/660-720V/50Hz for 3KW & above
Other voltages & frequency such as 200V, 346V, 440V & 60Hz can be supplied on request
± 5% of rated voltage; ± 1% frequency and ± 1% phase unbalance
IE1 / IE2 / IE3 (IEC 60034-30-1)
Continuous S1 or (S2 – (250°C or 300°C or 400°C/2hours – once only)
Fan application motors without a cooling fan, cooled by the airstream of the driven machine (IC 418)
Method of Starting
Full voltage direct on line starting or star-delta starting
Insulation & Temperate Rise Class
Class H insulation and Class B temperature rise
Degree of Protection
Squirrel cage, aluminium conductor with end-ring and wafter blades integrally cast
Place: Non-hazardous, shadedAmbient temperature: -20°C to 40°C
Relative humidity: Less than 90% relative humidity (non-condensation)
Altitude: Up to 1,000 metres above sea level
Direction of Rotation
Standard motors are suitable for operation in either direction of rotation of shaft.Direction of rotation can be reversed by interchanging any two of the power lines.
IEC and full voltage measuring starting operation
Carbon Steel, round shaft with key
Grease pre-packed shielded ball bearing
Heat resistant grease
Phenolic rust-proof base plus lacquer surface finish. Painting in ATT red.
NE set inside the terminal box
Terminal Box & Lead Wires
Supplied with separate terminal box and 1 metre extended lead wires
Other Options Available (Contact ATT to inquire for other options)
Inverter duty motor suitable for VSD operation
Space heaters (110V/220V/1ph) or winding heaters available on request
PTC thermistor 150°CWinding or bearing RTD (PT100)
Degree of Protection
Up to IP66
The table below contains the various types of mounting available for Smoke Extraction Motor Series. If you are unable to find the dimensions to the mounting you prefer, please contact us for the outlining dimensions.