Marathon 15 HP General Purpose Pump Motor, 3 phase, 3600 RPM, 230/460 V, 254 Frame, TEFC - U2120A

Catalog #:U2120A
Part #:254TTFNA16817
  • Class F insulation
  • 50Hz Voltages at next lower HP
  • Rolled Steel and Cast Iron
  • NEMA Design B
  • 10:1 Constant Torque
  • 1.15 Service Factor on sinewave or 1.0 Service Factor on IGBT power
  • 254TYZ and larger frames IP55 Standard with (IP-56 as a factory modification)
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Weight:330.00 LB

General Specifications

UPC: 722856054500 Weight: 330.00 LB
Packaged Length: 39 IN Packaged Width: 32.25 IN
Packaged Height: 22.01 IN

Nameplate Specifications

Output HP: 15 Hp Output KW: 11.2 kW
Frequency: 60 Hz Voltage: 230/460 V
Current: 36.0/18.0 A Speed: 3535 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 91 % Power Factor: 86
Duty: Continuous Insulation Class: F
Design Code: B KVA Code: G
Frame: 254 Enclosure: Totally Enclosed Fan Cooled
Thermal Protection: No Ambient Temperature: 40 °C
Drive End Bearing Size: 6312 Opp Drive End Bearing Size: 6210
UL: Recognized CSA: Y
CE: Y IP Code: 55

Technical Specifications

Electrical Type: Squirrel Cage Inverter Rated Starting Method: Line Or Inverter
Poles: 2 Rotation: Reversible
Resistance Main: .66 Ohms Mounting: Rigid Base
Motor Orientation: Horizontal Drive End Bearing: Ball
Opp Drive End Bearing: Ball Frame Material: Cast Iron
Shaft Type: Hyd Pump Adaptor Shaft Overall Length: 21.34 in
Shaft Diameter: 1.375 in Shaft Extension: 4 in
Assembly/Box Mounting: F1/F2 Capable

Speed Characteristics

Curvepoint Current (Amps) Current (%) Torque (ft-lbs) (%) Speed (RPM) Rated Output (KW) Power Factor (%) Rated Output (Hp)
Locked-Rotor 116.00 663.0 38.00 170.0 0 35.0 15.00
Pull-Up 103.00 589.0 37.00 167.0 1,800 15.00
No Load 6.80 34.0 0.00 0.0 3,600 9.5 15.00
2/3 97.00 554.0 43.00 194.0 2,400 15.00
1/3 108.00 617.0 35.00 158.0 1,200 15.00
Break-Down 75.00 429.0 62.00 280.0 3,175 72.0 15.00
Full Load 18.00 100.0 22.20 100.0 3,535 86.0 15.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 6.80 8.00 11.00 14.20 18.00 20.50 22.50
Rated Output (KW) 1.50 3.50 6.40 9.40 12.40 14.20 15.50
Efficiency (%) 0.0 82.5 88.5 90.2 91.0 91.0 90.2
Power Factor (%) 9.5 53.0 73.0 82.0 86.0 87.0 88.0
Speed (RPM) 3,600 3,585 3,570 3,555 3,535 3,525 3,520
Temp. Rise @ FL 0.0 0.0 0.0 0.0 65.0 85.0 105.0
Torque (ft-lbs) 0.00 5.50 11.00 16.50 22.20 25.00 28.00
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