My Account                   Order Status
Search

256TTDX7391 – Marathon 10 HP Definite Purpose AC Motor, 3 phase, 1200 RPM, 230/460/796 V, 256T Frame, ODP – Y204

256TTDX7391 – Marathon 10 HP Definite Purpose AC Motor, 3 phase, 1200 RPM, 230/460/796 V, 256T Frame, ODP – Y204

256TTDX7391 Marathon Other Purpose Motors

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

  • NEMA design D for extra high starting and breakdown torques
  • Normally closed thermostats (one per phase, Class F)
  • Fully guarded with screens on all external openings
  • Copper bar rotor on 500 frame
  • Low starting current with 5-8% slip
  • Class F insulation, F2 conduit box location
  • Shaft slinger
  • Special “oil well” duty
  • Ball bearings
  • Will become build-up item when current stock is gone

Marathon Motors
Regal Beloit

Description

256TTDX7391 – Marathon 10 HP Definite Purpose AC Motor, 3 phase, 1200 RPM, 230/460/796 V, 256T Frame, ODP – Y204

256TTDX7391 Marathon Other Purpose Motors

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

General Specifications

UPC: 722856043085 Weight: 462 LB
Packaged Length: 30.5 IN Packaged Width: 16.81 IN
Packaged Height: 14 IN

Nameplate Specifications

Output HP: 10 Hp Output KW: 7.5 kW
Frequency: 60 Hz Voltage: 230/460/796 V
Current: 29.0/14.5/8.4 A Speed: 1130 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 86.5 % Power Factor: 75
Duty: Continuous Insulation Class: F
Design Code: D KVA Code: J
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: N
CE: N IP Code: 23

Technical Specifications

Electrical Type: Squirrel Cage Induction Run Starting Method: Across The Line
Poles: 6 Rotation: Reversible
Resistance Main: .805 Ohms Mounting: Rigid Base
Motor Orientation: Horizontal Drive End Bearing: Ball
Opp Drive End Bearing: Ball Frame Material: Rolled Steel
Shaft Type: T Overall Length: 23.04 in
Frame Length: 15.15 in Shaft Diameter: 1.625 in
Shaft Extension: 4.19 in Assembly/Box Mounting: F2-ODE-Box

Speed Characteristics

Curvepoint Current (Amps) Current (%) Torque (ft-lbs) (%) Speed (RPM) Rated Output (KW) Power Factor (%) Rated Output (Hp)
Locked-Rotor 97.00 669.0 130.00 281.0 0 52.0 10.00
Pull-Up 90.00 621.0 122.00 264.0 250 10.00
Break-Down 72.00 497.0 170.00 368.0 550 67.0 10.00
2/3 82.00 566.0 132.00 286.0 400 10.00
No Load 7.50 52.0 0.00 0.0 1,200 10.00
Full Load 14.50 100.0 46.20 100.0 1,130 10.00
1/3 95.00 655.0 120.00 260.0 100 10.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 7.50 8.00 9.50 11.80 14.50 16.20 17.50
Rated Output (KW) 0.40 2.30 4.20 6.40 8.60 10.00 11.00
Efficiency (%) 0.0 83.0 87.5 87.5 86.5 86.0 85.0
Power Factor (%) 7.0 35.5 56.0 68.5 75.0 77.5 78.5
Speed (RPM) 1,200 1,185 1,170 1,155 1,130 1,120 1,105
Temp. Rise @ FL 0.0 0.0 0.0 0.0 70.0 90.0 0.0
Torque (ft-lbs) 0.00 11.20 22.50 34.00 46.20 53.50 59.00

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!!!