My Account                   Order Status
Search

284TTFNA16522 – Marathon 25 HP General Purpose Pump Motor, 3 phase, 3600 RPM, 230/460 V, 284 Frame, TEFC – U2156A

284TTFNA16522 – Marathon 25 HP General Purpose Pump Motor, 3 phase, 3600 RPM, 230/460 V, 284 Frame, TEFC – U2156A

284TTFNA16522 Marathon General Purpose Pump Three Phase Motors

  • 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)

Marathon Motors
Regal Beloit

Description

284TTFNA16522 – Marathon 25 HP General Purpose Pump Motor, 3 phase, 3600 RPM, 230/460 V, 284 Frame, TEFC – U2156A

284TTFNA16522 Marathon General Purpose Pump Three Phase Motors

General Specifications

UPC: 722856054548 Weight: 518 LB
Packaged Length: 35 IN Packaged Width: 26 IN
Packaged Height: 24.34 IN

Nameplate Specifications

Output HP: 25 Hp Output KW: 18.7 kW
Frequency: 60/50 Hz Voltage: 230/460 V
Current: 57.5/28.8 A Speed: 3558 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 93 % Power Factor: 87.5
Duty: Continuous Insulation Class: F
Design Code: B KVA Code: G
Frame: 284 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: .0833 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: 23.50 in
Shaft Diameter: 1.875 in Shaft Extension: 4.62 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 182.00 640.0 50.00 135.0 0 31.0 25.00
Full Load 28.80 100.0 37.00 100.0 3,558 87.5 25.00
1/3 177.00 614.0 42.50 115.0 1,200 25.00
Break-Down 118.00 410.0 103.00 278.0 3,350 71.0 25.00
No Load 10.00 35.0 0.00 0.0 3,600 6.0 25.00
2/3 158.00 550.0 45.00 122.0 2,400 25.00
Pull-Up 167.00 581.0 42.50 115.0 1,800 25.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 10.00 12.00 16.70 22.40 28.80 33.00 35.50
Rated Output (KW) 0.80 5.30 10.20 15.10 20.20 23.30 25.40
Efficiency (%) 0.0 87.5 92.4 93.0 93.0 92.4 92.4
Power Factor (%) 6.0 55.0 76.0 84.0 87.5 88.5 89.0
Speed (RPM) 3,600 3,590 3,580 3,570 3,558 3,550 3,545
Temp. Rise @ FL 0.0 0.0 0.0 0.0 65.0 85.0 0.0
Torque (ft-lbs) 0.00 9.00 18.50 27.50 37.00 42.00 46.50

Marathon Motors
Regal Beloit