Catalog No - U355

256TTFL4038
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Features
  • NEMA JM pump shaft dimensions
  • Ball bearings, mechanically locked on shaft end
  • Continuous duty
  • 1.15 Service Factor (except as noted)
  • UL Recognized and CSA Certified
Discontinued

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General Specifications

Model : 256TTFL4038 Catalog No : U355
Part Description : 20,1800,TEFC,256JM,3/60/575 Category : JM
Stock : No
Technical Specifications

Electrical Type : SQ CAGE IND RUN Starting Method : ACROSS THE LINE
Poles : 4 Rotation : REV
Mounting : RIGID Motor Orientation : HORIZONTAL
Drive End Bearing : BALL Opp Drive End Bearing : BALL
Frame Material : ALUMINUM Shaft Type : JM
Overall Length : 28.49 in Frame Length : 14.75 in
Shaft Diameter : 1.25 in Shaft Extension : 5.28 in
Assembly/Box Mounting : F1/F2 CAPABLE UPC : 722856034441
Weight : 321.00 LB
Speed Characteristics

Curvepoint Current (Amps) Current (%) Torque (ft-lbs) Torque (%) Speed (RPM) Rated Output (KW) Power Factor (%) Rated Output (Hp)
Full Load 25.50 100.0 60.00 100.0 1,750 20.00
Locked-Rotor 145.00 569.0 115.00 192.0 0 40.0 20.00
1/3 140.00 549.0 110.00 183.0 500 20.00
No Load 10.00 39.0 0.00 0.0 1,800 20.00
Pull-Up 130.00 510.0 115.00 192.0 750 20.00
2/3 120.00 471.0 125.00 208.0 1,100 20.00
Break-Down 95.00 373.0 150.00 250.0 1,550 64.0 20.00
Load Characteristics

  • % of Rated Load
  • Current (Amps)
  • Rated Output (KW)
  • Efficiency (%)
  • Power Factor (%)
  • Speed (RPM)
  • Temp. Rise @ FL
  • Torque (ft-lb)
  • 0 %
  • 8.00
  • 0.500
  • 0.0
  • 5.5
  • 1,800
  • 0.0
  • 0.00
  • 25 %
  • 9.20
  • 4.300
  • 87.5
  • 46.5
  • 1,790
  • 0.0
  • 14.80
  • 50 %
  • 12.00
  • 8.200
  • 91.0
  • 68.5
  • 1,780
  • 0.0
  • 29.50
  • 75 %
  • 16.00
  • 12.300
  • 91.7
  • 77.5
  • 1,765
  • 0.0
  • 44.50
  • 100 %
  • 20.40
  • 16.500
  • 91.0
  • 81.0
  • 1,750
  • 80.0
  • 60.00
  • 115 %
  • 23.20
  • 19.000
  • 90.2
  • 82.0
  • 1,745
  • 105.0
  • 69.00
  • 125 %
  • 25.20
  • 21.000
  • 89.5
  • 82.5
  • 1,735
  • 0.0
  • 75.50