CT Series – Standard Efficiency (IE1) 3 Phase Cast Iron Induction Motor
ATT CT Series compromises of 3-phase, squirrel cage, IE1 standard efficiency (IEC 60034-30-1) motors in Cast Iron frame.
ATT CT series motors are all-purpose and highly efficient, making them well-suited for general application machines such as pumps, fans, and many more. Our CT series induction motors are widely recognized by their optimum performance even in challenging work conditions. CT series motors are suitable for continuous S1 duty, which means that it can operate under constant load and lasting long enough to allow the machine to reach thermal equilibrium.
The CT series can be used for various general purpose applications in machines such as fans, pumps, electric power packs etc.
Type of Motor
Totally Enclosed Fan Cooled (TEFC) Squirrel Cage Cast Iron Induction Motor
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 and ± 1% frequency± 1% phase unbalance
IE2 (IEC 60034-30-1)
Self external fan, surface cooling (IC 411)
Method of Starting
Full voltage direct on line starting or star-delta starting
Insulation & Temperature Rise Class
Class F 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
Lithium-base grease (Shell Alvania R3)
Phenolic rust-proof base plus lacquer surface finish. Painting in ATT IE2 Green
NE set inside the terminal box
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°C
Degree of Protection
Up to IP66
The table below contains the various types of mounting available for CT Series motors. If you are unable to find the dimensions to the mounting you prefer, please contact us for the outlining dimensions.