Catalog No - U872

256TTFNA4532
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Features
  • Blue Chip® quality, 100% cast iron construction for rigidity and reduced vibration
  • Internal and external epoxy paint
  • Class F insulation, 1.15 Service Factor
  • Rated 60/50 hertz, 190/380 or 380 volt at next lower horsepower
  • Extended grease tubes, Regreasable in service
  • T-drains provided for effective drainage (Installed in both endshields
  • Suitable for shaft down mounting
  • Shaft Slinger, Ball Bearings
  • Forsheda seals on both ends
  • Actual test and vibration data supplied with each motor, UL Recognized and CSA Certified,
Discontinued

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General Specifications

Model : 256TTFNA4532 Catalog No : U872
Part Description : 20,1800,TEFC,256T,3/60/230/460 Category : Other Purpose
Stock : No
Technical Specifications

Speed Characteristics

Curvepoint Current (Amps) Current (%) Torque (ft-lbs) Torque (%) Speed (RPM) Rated Output (KW) Power Factor (%) Rated Output (Hp)
Break-Down 86.00 344.0 145.00 244.0 1,625 67.0 20.00
Pull-Up 125.00 500.0 94.00 158.0 900 20.00
2/3 115.00 460.0 105.00 176.0 1,250 20.00
Locked-Rotor 140.00 560.0 108.00 182.0 0 41.5 20.00
1/3 135.00 540.0 92.00 155.0 200 20.00
Full Load 25.00 100.0 59.50 100.0 1,765 20.00
No Load 9.50 38.0 0.00 0.0 1,800 20.00
Load Characteristics

  • % of Rated Load
  • Current (Amps)
  • Rated Output (KW)
  • Efficiency (%)
  • Power Factor (%)
  • Speed (RPM)
  • Temp. Rise @ FL
  • Torque (ft-lb)
  • 0 %
  • 9.50
  • 0.500
  • 0.0
  • 7.0
  • 1,800
  • 0.0
  • 0.00
  • 25 %
  • 11.50
  • 4.500
  • 85.5
  • 48.0
  • 1,790
  • 0.0
  • 14.50
  • 50 %
  • 15.00
  • 8.500
  • 90.2
  • 70.0
  • 1,785
  • 0.0
  • 29.50
  • 75 %
  • 19.50
  • 12.500
  • 91.0
  • 79.5
  • 1,775
  • 0.0
  • 44.50
  • 100 %
  • 25.00
  • 16.500
  • 91.0
  • 82.0
  • 1,765
  • 70.0
  • 59.50
  • 115 %
  • 28.50
  • 19.000
  • 90.2
  • 84.0
  • 1,760
  • 90.0
  • 68.50
  • 125 %
  • 31.00
  • 20.500
  • 89.5
  • 84.5
  • 1,755
  • 105.0
  • 75.00