Catalog No - U757

256TTFL4079
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Features
  • Meets or exceeds NEMA Premium® efficiencies NEMA Premium® models are in compliance with EISA2007
  • Cast iron frame and brackets
  • Inverter Duty 10:1 Variable Torque and 10:1 Constant Torque, 1.0 SF (except as noted)
  • 1.15 Service Factor
  • Class F Insulation
  • Standard assembly F1, reversible to F2 assembly
  • UL Recognized, CSA Certified, CE Mark
  • Three year warranty
Discontinued

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General Specifications

Model : 256TTFL4079 Catalog No : U757
Part Description : 10,1200,TEFC,256TC,3/60/230/460 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)
Locked-Rotor 78.50 604.0 75.50 166.0 0 42.0 10.00
No Load 4.80 37.0 0.00 0.0 1,200 10.00
1/3 78.00 600.0 88.00 193.0 200 10.00
Full Load 13.00 100.0 45.50 100.0 1,160 10.00
Break-Down 48.50 373.0 125.00 275.0 1,000 70.0 10.00
2/3 68.00 523.0 95.00 209.0 600 10.00
Pull-Up 75.00 577.0 90.00 198.0 400 10.00
Load Characteristics

  • % of Rated Load
  • Current (Amps)
  • Rated Output (KW)
  • Efficiency (%)
  • Power Factor (%)
  • Speed (RPM)
  • Temp. Rise @ FL
  • Torque (ft-lb)
  • 0 %
  • 4.80
  • 0.300
  • 0.0
  • 5.5
  • 1,200
  • 0.0
  • 0.00
  • 25 %
  • 5.50
  • 2.200
  • 87.5
  • 48.5
  • 1,190
  • 0.0
  • 11.00
  • 50 %
  • 7.50
  • 4.200
  • 90.2
  • 69.0
  • 1,180
  • 0.0
  • 22.30
  • 75 %
  • 10.00
  • 6.200
  • 91.0
  • 77.5
  • 1,170
  • 0.0
  • 33.80
  • 100 %
  • 13.00
  • 8.500
  • 89.5
  • 81.0
  • 1,160
  • 60.0
  • 45.50
  • 115 %
  • 15.00
  • 9.800
  • 88.5
  • 81.5
  • 1,150
  • 80.0
  • 52.50
  • 125 %
  • 16.20
  • 10.800
  • 87.5
  • 82.0
  • 1,145
  • 100.0
  • 57.50