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256TTFNA16031 – Marathon 20 HP Vertical Solid Shaft P-Base Motor, 3 phase, 1800 RPM, 230/460 V, 256HPV Frame, TEFC – M893B

256TTFNA16031 – Marathon 20 HP Vertical Solid Shaft P-Base Motor, 3 phase, 1800 RPM, 230/460 V, 256HPV Frame, TEFC – M893B

256TTFNA16031 Marathon Vertical Solid Shaft P-Base Motors

  • Meets or exceeds NEMA Premium® efficiencies
  • Normal thrust
  • Class F insulation
  • Suitable for 230 volt part winding start through 100 HP (dual voltage motors)
  • Heavy duty lifting lugs
  • Drip cover/canopy cap included

Marathon Motors
Regal Beloit

Description

256TTFNA16031 – Marathon 20 HP Vertical Solid Shaft P-Base Motor, 3 phase, 1800 RPM, 230/460 V, 256HPV Frame, TEFC – M893B

256TTFNA16031 Marathon Vertical Solid Shaft P-Base Motors

General Specifications

UPC: 722856052889 Weight: 536 LB
Packaged Length: 30.75 IN Packaged Width: 21.75 IN
Packaged Height: 18 IN

Nameplate Specifications

Output HP: 20 Hp Output KW: 14.9 kW
Frequency: 60 Hz Voltage: 230/460 V
Current: 48.0/24.1 A Speed: 1775 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 93 % Power Factor: 84
Duty: Continuous Insulation Class: F
Design Code: B KVA Code: G
Frame: 256HPV 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: 43

Technical Specifications

Electrical Type: Squirrel Cage Induction Run Starting Method: Across The Line
Poles: 4 Rotation: Reversible
Resistance Main: .474 Ohms Mounting: Round
Motor Orientation: Shaft Down Drive End Bearing: Ball
Opp Drive End Bearing: Ball Frame Material: Cast Iron
Shaft Type: HP Overall Length: 28.26 in
Frame Length: 12.25 in Shaft Diameter: 1.125 in
Shaft Extension: 2.75 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)
1/3 125.00 519.0 90.00 152.0 600 20.00
2/3 105.00 436.0 115.00 194.0 1,200 20.00
Locked-Rotor 138.00 573.0 105.00 177.0 0 40.0 20.00
Break-Down 86.00 357.0 146.00 247.0 1,625 66.0 20.00
Full Load 24.10 100.0 59.20 100.0 1,775 20.00
No Load 8.50 35.0 0.00 0.0 1,800 20.00
Pull-Up 115.00 477.0 100.00 169.0 900 20.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 8.50 10.50 14.00 18.50 24.10 27.00 30.00
Rated Output (KW) 0.60 4.00 8.00 12.00 16.00 18.00 20.50
Efficiency (%) 0.0 90.0 93.0 93.6 93.0 92.4 91.7
Power Factor (%) 8.5 51.0 72.0 81.0 84.0 84.5 85.0
Speed (RPM) 1,800 1,795 1,785 1,780 1,775 1,770 1,760
Temp. Rise @ FL 0.0 0.0 0.0 0.0 65.0 85.0 105.0
Torque (ft-lbs) 0.00 14.50 29.50 44.50 59.20 68.00 74.50

Marathon Motors
Regal Beloit

Notice:

Due to unprecedented disruptions and delays, lead times are longer than usual and may get worse. We apologize for the inconvenience this imposes on you and we appreciate your patience and understanding during this time.

We are working hard to ensure any problems are minimized for you and we thank your for your business. In the meantime, please feel free to reach out to us for any quotes, questions, or concerns.

 

Sincerely,

The IME Team

Holiday Hours of Operation:

Our warehouses will be closed 12/24/2024-01/01/2025:

Our Sales Office will remain open with limited hours during this time and will continue to process orders – all shipments will resume on 01/02/2025 – feel free to purchase from our shop or contact us for quotes as usual.

*FYI: If you’ve placed an order with us before 12/24/2024, we are currently experiencing delays in manufacturing/shipping and are working hard to provide updates and complete fulfilment as quickly as possible – we thank you for your business and your patience*

Happy Holidays from IMEX!!!