Catalog No - U653

256TTFNA4030
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Features
  • Frame constructions are heavy gauge steel or Aluminum, as noted
  • 1.15 Service Factor
  • Nameplated 60/50 hertz at next lowest horsepower
  • Will accept C-Face Kits as noted, also see Accessories section
  • Severe duty kits available, see Accessories section
  • Shaft slinger, Regreasable bearings (182T and larger), lead lugs (364T and larger), and bearing caps on 444T and larger
  • Ball Bearings, except where noted
  • UL Recognized and CSA Certified
Discontinued

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General Specifications

Model : 256TTFNA4030 Catalog No : U653
Part Description : 20,1800,TEFC,256T,3/60/575 Category : Totally Enclosed Fan Cooled (TEFC)
Stock : No
Technical Specifications

Speed Characteristics

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

  • % of Rated Load
  • Current (Amps)
  • Rated Output (KW)
  • Efficiency (%)
  • Power Factor (%)
  • Speed (RPM)
  • Temp. Rise @ FL
  • Torque (ft-lb)
  • 0 %
  • 7.60
  • 0.500
  • 0.0
  • 7.0
  • 1,800
  • 0.0
  • 0.00
  • 25 %
  • 9.20
  • 4.500
  • 85.5
  • 48.0
  • 1,790
  • 0.0
  • 14.50
  • 50 %
  • 12.00
  • 8.500
  • 90.2
  • 70.0
  • 1,785
  • 0.0
  • 29.50
  • 75 %
  • 15.60
  • 12.500
  • 91.0
  • 79.5
  • 1,775
  • 0.0
  • 44.50
  • 100 %
  • 20.00
  • 16.500
  • 91.0
  • 82.0
  • 1,765
  • 70.0
  • 59.50
  • 115 %
  • 22.80
  • 19.000
  • 90.2
  • 84.0
  • 1,760
  • 90.0
  • 68.50
  • 125 %
  • 24.80
  • 20.500
  • 89.5
  • 84.5
  • 1,755
  • 105.0
  • 75.00