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256TTFNA16101 – Marathon 7.50 HP General Purpose Motor, 3 phase, 900 RPM, 230/460 V, 256T Frame, TEFC – L413B

256TTFNA16101 – Marathon 7.50 HP General Purpose Motor, 3 phase, 900 RPM, 230/460 V, 256T Frame, TEFC – L413B

256TTFNA16101 Marathon Three Phase TEFC Motors

Please advise CFM, static pressure, voltage, phase, and/or horsepower on specifications, drawings, or existing equipment for an accurate quote.

  • Frame constructions are heavy gauge steel or Aluminum, as noted
  • Nameplated 60/50 hertz at next lowest horsepower
  • Motor will accept a C-face kit
  • Severe duty kits available, see Accessories section
  • Shaft slinger, Regreasable bearings (182T and larger), lead lugs (364T and larger), and bearing caps on 444T and larger

Marathon Motors
Regal Beloit

Original price was: $5,707.00.Current price is: $4,067.95.

Description

256TTFNA16101 – Marathon 7.50 HP General Purpose Motor, 3 phase, 900 RPM, 230/460 V, 256T Frame, TEFC – L413B

256TTFNA16101 Marathon Three Phase TEFC Motors

Please advise CFM, static pressure, voltage, phase, and/or horsepower on specifications, drawings, or existing equipment for an accurate quote.

General Specifications

UPC: 722856052148 Weight: 342 LB
Packaged Length: 30.75 IN Packaged Width: 21.75 IN
Packaged Height: 18 IN

Nameplate Specifications

Output HP: 7.50 Hp Output KW: 5.6 kW
Frequency: 60/50 Hz Voltage: 230/460 V
Current: 22.0/11.0 A Speed: 875 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 88.5 % Power Factor: 73
Duty: Continuous Insulation Class: F
Design Code: B KVA Code: F
Frame: 256T Enclosure: Totally Enclosed Fan Cooled
Thermal Protection: No Ambient Temperature: 40 °C
Drive End Bearing Size: 309 Opp Drive End Bearing Size: 210
UL: Recognized CSA: Y
CE: Y IP Code: 43

Technical Specifications

Electrical Type: Squirrel Cage Induction Run Starting Method: Across The Line
Poles: 8 Rotation: Reversible
Resistance Main: 1.37 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: 25.27 in
Frame Length: 12.25 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)
Break-Down 35.00 318.0 110.00 244.0 780 7.50
1/3 52.00 473.0 68.00 151.0 300 7.50
Pull-Up 50.00 455.0 72.00 160.0 450 7.50
Locked-Rotor 53.00 482.0 75.00 167.0 0 37.0 7.50
2/3 48.00 436.0 85.00 189.0 600 7.50
No Load 6.50 59.0 0.00 0.0 900 7.50
Full Load 11.00 100.0 45.00 100.0 875 7.50

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 6.50 7.00 8.00 9.50 11.00 12.50 13.50
Rated Output (KW) 0.50 1.50 3.00 4.50 6.50 7.50 8.00
Efficiency (%) 0.0 80.0 86.5 88.5 88.5 87.5 87.5
Power Factor (%) 6.0 31.5 50.5 63.0 73.0 73.0 74.0
Speed (RPM) 900 895 890 880 875 870 865
Temp. Rise @ FL 0.0 0.0 0.0 0.0 45.0 60.0 75.0
Torque (ft-lbs) 0.00 11.00 22.00 33.50 45.00 52.00 57.00

Marathon Motors
Regal Beloit

Winter Weather Notice:

Our sales office and customer service teams may be disrupted on January 9th, 2025 due to a Severe Winter Weather advisory in their area. We apologize for any potential delays or disruptions this may pose to you and we appreciate your patience during this event.

 

In the meantime, please feel free to reach out to us for any quotes, questions, or concerns and we will do our best to respond in a timely manner – orders will still be processed normally.

Thanks!

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!!!