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256TTDC6026 – Marathon 20 HP General Purpose Motor, 3 phase, 1800 RPM, 208-230/460 V, 256T Frame, ODP – U769

256TTDC6026 – Marathon 20 HP General Purpose Motor, 3 phase, 1800 RPM, 208-230/460 V, 256T Frame, ODP – U769

256TTDC6026 Marathon Three Phase ODP Motors

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

  • Meets or exceeds NEMA Premium® efficiency. Model is in compliance with EISA2007
  • Motor will accept a C-face kit
  • 12 Leads for WYE-DELTA, part winding on low voltage, or across-the-line starting

Marathon Motors
Regal Beloit

Description

256TTDC6026 – Marathon 20 HP General Purpose Motor, 3 phase, 1800 RPM, 208-230/460 V, 256T Frame, ODP – U769

256TTDC6026 Marathon Three Phase ODP Motors

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

General Specifications

UPC: 722856013040 Weight: 352 LB
Packaged Length: 27 IN Packaged Width: 20.5 IN
Packaged Height: 18 IN

Nameplate Specifications

Output HP: 20 Hp Output KW: 14.9 kW
Frequency: 60/50 Hz Voltage: 208-230/460 V
Current: 51.0-49.0/24.5 A Speed: 1780 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 93 % Power Factor: 83
Duty: Continuous Insulation Class: F
Design Code: B KVA Code: H
Frame: 256T Enclosure: Drip Proof
Thermal Protection: No Ambient Temperature: 40 °C
Drive End Bearing Size: 6309 Opp Drive End Bearing Size: 6208
UL: Recognized CSA: Y
CE: Y IP Code: 22

Technical Specifications

Electrical Type: Squirrel Cage Induction Run Starting Method: Across The Line
Poles: 4 Rotation: Reversible
Resistance Main: .41 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: 22.60 in
Shaft Diameter: 1.625 in Shaft Extension: 4.25 in
Assembly/Box Mounting: F1 Only

Speed Characteristics

Curvepoint Current (Amps) Current (%) Torque (ft-lbs) (%) Speed (RPM) Rated Output (KW) Power Factor (%) Rated Output (Hp)
Pull-Up 160.00 88.00 900 20.00
1/3 170.00 90.00 600 20.00
Break-Down 100.00 190.00 320.0 1,675 70.0 20.00
No Load 8.50 0.00 0.0 1,800 5.0 20.00
2/3 145.00 65.00 1,200 20.00
Full Load 24.50 100.0 59.20 100.0 1,780 83.0 20.00
Locked-Rotor 140.00 108.00 182.0 0 36.0 20.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 8.50 10.50 14.50 19.20 25.50 29.30 31.50
Rated Output (KW) 0.50 4.20 8.00 12.00 16.00 18.50 20.00
Efficiency (%) 0.0 90.2 93.0 93.0 93.0 93.0 92.4
Power Factor (%) 5.0 49.0 70.0 79.0 83.0 83.5 84.0
Speed (RPM) 1,800 1,795 1,790 1,785 1,775 1,770 1,765
Temp. Rise @ FL 0.0 0.0 0.0 0.0 45.0 60.0 75.0
Torque (ft-lbs) 0.00 14.70 29.40 44.20 59.20 68.10 74.20

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!!!