General Purpose Motors/Single Phase/DL Series - Capacitor Start & Run/DL Series – Single Phase (Capacitor Start & Run) Aluminum Induction Motor

DL Series – Single Phase (Capacitor Start & Run) Aluminum Induction Motor

ATT DL Series compromises of capacitor start and run, single phase, squirrel cage motors in Aluminium die cast frame. A removable foot mount is integrated in DL Series motors as an additional feature to enhance its mounting versatility. It can be used for general purpose applications in machines as well as in areas which have weight limits due to lighter aluminium frames. They are especially suitable for family workshops where only single-phase current supply is available.


ATT DL Series motors are enhanced with an electronic or manual centrifugal switch to provide better performance during operation. When the motor approaches its normal operating speed, the centrifugal switch disconnects the starting winding from the power source; the motor then continues operating solely using its running winding. Motors using such a centrifugal switch make a distinct clicking noise when starting and stopping as the centrifugal switch opens and closes.


These single phase motors are perfect for high starting torque applications such as air compressors.

Item Standard Specifications
Type of Motor Totally Enclosed Fan Cooled (TEFC) Squirrel Cage Aluminium Induction Motor
Design Standard IEC 60034-1
Framesize 63-100L
Voltage and Frequency Standard stock available are: 220-240/50Hz
Power Conditions ± 5% of rated voltage; ± 1% frequency and ± 1% phase unbalance
Time Duty Continuous S1
Cooling Method Self external fan, surface cooling (IC 411)
Insulation Class Class F
Degree of Protection IP55
Capacitor Capacitor Start & Capacitor Run
Centrifugal Switch Manual or Electronic
Rotor Winding Squirrel cage, aluminium conductor with end-ring and wafter blades integrally cast
Environmental Conditions Place: Non-hazardous, shaded

Ambient 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.
Test Procedure IEC and full voltage measuring starting operation
Fan Cover Pressed steel
Shaft Carbon Steel, round shaft with key
Bearing Sealed, lubricated-for-life bearings
Painting Phenolic rust-proof base plus lacquer surface finish. Painting in ATT Blue
Ground Terminal NE set inside the terminal box

The table below contains the various types of mounting available for DL Series motors. If you are unable to find the dimensions to the mounting you prefer, please contact us for the outlining dimensions.