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.
| Item |
Standard Specifications |
| Type of Motor |
Totally Enclosed Fan Cooled (TEFC) Squirrel Cage Cast Iron Induction Motor |
| Design Standard |
IEC 60034-1 |
| Framesize |
80-355L |
| 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 |
| Power Conditions |
± 5% of rated voltage and ± 1% frequency± 1% phase unbalance |
| Efficiency Standard |
IE2 (IEC 60034-30-1) |
| Time Duty |
Continuous S1 |
| Cooling Method |
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 |
IP55 |
| Rotor Winding |
Squirrel cage, aluminium conductor with end-ring and wafter blades integrally cast |
| Environmental Conditions |
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. |
| Test Procedure |
IEC and full voltage measuring starting operation |
| Fan Cover |
Pressed steel |
| Shaft |
Carbon Steel, round shaft with key |
| Bearing |
Grease pre-packed shielded ball bearing |
| Lubrication |
Lithium-base grease (Shell Alvania R3) |
| Painting |
Phenolic rust-proof base plus lacquer surface finish. Painting in ATT IE2 Green |
| Ground Terminal |
NE set inside the terminal box |
| Other Options Available (Contact ATT to inquire for other options) |
| VSD Driven |
Inverter duty motor suitable for VSD operation |
| Heaters |
Space heaters (110V/220V/1ph) or winding heaters available on request |
| Thermal Protection |
PTC thermistor 150°C |
| Insulation Class |
Class H |
| 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.
