Catalog No - U501A

256TTDBD4020
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Features
  • Designed for use on pumps for fire pump duty
  • UL file EX5190, CSA file LR2025 and CE mark
  • 50°C ambient
  • Red paint on 25 HP through 200 HP
  • NEMA Design B, Code G or less
  • Will accept C-Face kits, see Accessories section for kits
  • Single voltage motors have 12 leads and are suitable for wye-delta, across the line, or part winding start
  • Dual voltage motors have 12 leads, suitable for wye-delta or across the line start on either voltage, or part winding start on low voltage
List Price: $2,954 USD

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General Specifications

Model : 256TTDBD4020 Catalog No : U501A
Part Description : 25,3600,DP,256T,3/60/190/380-400 Category : Fire Pump
Stock : No
Nameplate Specifications

Technical Specifications

Electrical Type : Squirrel Cage Induction Run Starting Method : Part Wdg Start Low Volt Only & Wye Start Delta Run
Poles : 2 Rotation : Reversible
Mounting : Rigid base Motor Orientation : HORIZONTAL
Drive End Bearing : BALL Opp Drive End Bearing : BALL
Frame Material : Rolled Steel Shaft Type : T
Overall Length : 24.22 in Frame Length : 12.20 in
Shaft Diameter : 1.625 in Shaft Extension : 4.00 in
Assembly/Box Mounting : F1/F2 CAPABLE UPC : 722856067234
Weight : 284.00 LB
Speed Characteristics

Curvepoint Current (Amps) Current (%) Torque (ft-lbs) Torque (%) Speed (RPM) Rated Output (KW) Power Factor (%) Rated Output (Hp)
1/3 170.00 48.00 1,200 25.00
2/3 145.00 60.00 2,400 25.00
Full Load 29.00 100.0 37.20 100.0 3,545 88.0 25.00
No Load 9.80 0.00 0.0 3,600 7.0 25.00
Break-Down 105.00 92.00 250.0 3,350 72.0 25.00
Pull-Up 160.00 48.00 1,800 25.00
Locked-Rotor 175.00 56.00 150.0 0 44.0 25.00
Load Characteristics

  • % of Rated Load
  • Current (Amps)
  • Rated Output (KW)
  • Efficiency (%)
  • Power Factor (%)
  • Speed (RPM)
  • Temp. Rise @ FL
  • Torque (ft-lb)
  • 0 %
  • 11.27
  • 0.750
  • 0.0
  • 7.0
  • 3,600
  • 0.0
  • 0.00
  • 25 %
  • 13.80
  • 5.500
  • 87.5
  • 57.0
  • 3,585
  • 0.0
  • 9.20
  • 50 %
  • 18.98
  • 10.200
  • 90.2
  • 77.0
  • 3,575
  • 0.0
  • 18.50
  • 75 %
  • 25.88
  • 15.500
  • 91.0
  • 85.0
  • 3,560
  • 0.0
  • 27.80
  • 100 %
  • 33.35
  • 20.500
  • 91.0
  • 88.0
  • 3,545
  • 40.0
  • 37.20
  • 115 %
  • 38.53
  • 23.900
  • 90.2
  • 89.0
  • 3,535
  • 55.0
  • 42.80
  • 125 %
  • 41.98
  • 26.000
  • 89.5
  • 89.0
  • 3,525
  • 65.0
  • 46.50