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  • Three Phase
  • Constant Torque
  • 460 V
  • 1725/850 RPM
  • One Winding
  • Rigid Base
  • TEFC
Two-speed, single winding design motors.These totally enclosed fan cooled designs are priced competitive to other manufacturers’ drip-proof two-speed, single winding motors.

Variable torque motors have horsepower ratings that vary as the square of the speed, while torque varies directly with the speed. These motors are typically used on applications such as fans, blowers and centrifugal pumps.

Constant torque motors are capablemore
Two-Speed Motors
Unit of Measure
Items Two-Speed Motors
120943
Leeson Constant Torque 460 V Two-Speed Motors
Two-Speed Motors
131471
Leeson Constant Torque 460 V Two-Speed Motors
Two-Speed Motors
131470
Leeson Constant Torque 460 V Two-Speed Motors
Two-Speed Motors
140445
Leeson Constant Torque 460 V Two-Speed Motors
Base N/A Rigid Base
Enclosure Type N/A Totally Enclosed Fan Cooled
Phase N/A Three
HP N/A 1/2 1 N/A 1 2 N/A 1 1/2 3 N/A 2.5 5
RPM 60 Hz N/A 850 1725 N/A 860 1740 N/A 850 1725 N/A 850 1725
Voltage N/A 460 V
FL Amps1 N/A 1.4 to 1.6 N/A 2.9 N/A 3.5 to 3.8 N/A 6.7 to 7.0
NEMA Frame N/A 143T N/A 184T N/A 184T N/A 215T
Disc. Sym. N/A B
C Dimension N/A 13.25 in N/A 13.96 in N/A 14.96 in N/A 17.71 in
Approx. Weight N/A 36 lbs N/A 68 lbs N/A 80 lbs N/A 145 lbs
NEMA Service Factor N/A 1.00
Manufacturer N/A
Leeson
  • 1 F.L. Amps listed are for high and low speeds, respectively.