Marathon 15 HP Severe Duty Motor, 3 phase, 1800 RPM, 230/460 V, 254T Frame, TEFC - U871A

Catalog #:U871A
Part #:254TTFNA16568
  • Blue Chip® quality, 100% cast iron construction for rigidity and reduced vibration
  • Internal and external epoxy paint
  • Class F insulation
  • Rated 60/50 hertz, 190/380 or 380 volt at next lower horsepower
  • Extended grease tubes, Regreasable in service
  • T-drains provided for effective drainage (Installed in both endshields
  • Suitable for shaft down mounting
  • Shaft Slinger
  • Forsheda seals on both ends
  • Actual test and vibration data supplied with each motor
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Weight:323.00 LB
List Price: $3,392.00

General Specifications

UPC: 722856018830 Weight: 323.00 LB
Packaged Length: 31.25 IN Packaged Width: 22.25 IN
Packaged Height: 18 IN

Nameplate Specifications

Output HP: 15 Hp Output KW: 11.2 kW
Frequency: 60 Hz Voltage: 230/460 V
Current: 37.5/18.8 A Speed: 1775 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 92.4 % Power Factor: 81
Duty: Continuous Insulation Class: F
Design Code: B KVA Code: G
Frame: 254T Enclosure: Totally Enclosed Fan Cooled
Thermal Protection: No Ambient Temperature: 40 °C
Drive End Bearing Size: 6309 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: 4 Rotation: Reversible
Resistance Main: .649 Ohms Mounting: Rigid Base
Motor Orientation: Horizontal Drive End Bearing: Ball
Opp Drive End Bearing: Ball Frame Material: Cast Iron
Shaft Type: T Overall Length: 23.65 in
Frame Length: 10.50 in Shaft Diameter: 1.625 in
Shaft Extension: 4.2 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)
Full Load 18.80 100.0 44.40 100.0 1,775 15.00
2/3 85.00 452.0 87.00 196.0 1,200 15.00
Pull-Up 95.00 505.0 75.00 169.0 900 15.00
Break-Down 69.00 367.0 125.00 282.0 1,675 74.0 15.00
Locked-Rotor 110.00 585.0 85.00 191.0 0 40.0 15.00
1/3 105.00 559.0 71.00 160.0 600 15.00
No Load 7.80 41.0 0.00 0.0 1,800 15.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 7.80 8.80 11.20 14.80 18.80 21.00 23.00
Rated Output (KW) 0.70 3.50 6.00 9.00 12.20 14.50 15.50
Efficiency (%) 0.0 86.5 91.0 92.4 92.4 91.7 91.0
Power Factor (%) 11.5 45.0 68.0 78.0 81.0 82.0 82.5
Speed (RPM) 1,800 1,792 1,788 1,780 1,775 1,770 1,765
Temp. Rise @ FL 0.0 35.0 30.0 0.0 55.0 75.0 90.0
Torque (ft-lbs) 0.00 11.00 22.00 33.50 44.40 50.50 56.00
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