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449TTFS6528 – Marathon 250 HP Severe Duty Motor, 3 phase, 1800 RPM, 460 V, 449T Frame, TEFC – E771

449TTFS6528 – Marathon 250 HP Severe Duty Motor, 3 phase, 1800 RPM, 460 V, 449T Frame, TEFC – E771

449TTFS6528 Marathon Other Severe Duty 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
  • Meets IEEE45 USCG Marine Duty, IP54 Construction, Meets Ford EM1 Automotive Duty Specification
  • Blue Chip® quality, 100% cast iron construction for rigidity and reduced vibration
  • Provisions to add stub shaft for an encoder (182T-449T, TEFC only)
  • Internal and external epoxy paint
  • MAX GUARD® Class H insulation system
  • Constant Torque speed range is listed in CT SPEED RANGE column
  • 1.15 Service Factor on sinewave, 1.0 Service Factor on IGBT power
  • Bearing caps (254T and larger), Precision balanced to .08”/sec

Marathon Motors
Regal Beloit

Original price was: $41,039.00.Current price is: $29,252.60.

Description

449TTFS6528 – Marathon 250 HP Severe Duty Motor, 3 phase, 1800 RPM, 460 V, 449T Frame, TEFC – E771

449TTFS6528 Marathon Other Severe Duty Motors

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

General Specifications

UPC: 722856020727 Weight: 0 LB
Packaged Length: 56 IN Packaged Width: 46 IN
Packaged Height: 32.05 IN

Nameplate Specifications

Output HP: 250 Hp Output KW: 187.0 kW
Frequency: 60 Hz Voltage: 460 V
Current: 285.0 A Speed: 1785 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 96.5 % Power Factor: 86
Duty: Continuous Insulation Class: H
Design Code: B KVA Code: G
Frame: 447/449T Enclosure: Totally Enclosed Fan Cooled
Thermal Protection: No Ambient Temperature: 40 °C
Drive End Bearing Size: 6319 Opp Drive End Bearing Size: 6318
UL: Recognized CSA: Y
CE: Y IP Code: 54

Technical Specifications

Electrical Type: Squirrel Cage Inverter Rated Starting Method: Line Or Inverter
Poles: 4 Rotation: Reversible
Resistance Main: .0107 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: 51.84 in
Frame Length: 28.75 in Shaft Diameter: 3.375 in
Shaft Extension: 8.81 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)
Full Load 285.00 100.0 736.00 100.0 1,785 250.00
2/3 1,650.00 579.0 1,450.00 197.0 1,200 250.00
No Load 87.00 31.0 0.00 0.0 1,800 250.00
1/3 1,775.00 623.0 1,200.00 163.0 600 250.00
Pull-Up 1,725.00 605.0 1,250.00 170.0 900 250.00
Break-Down 1,100.00 386.0 1,825.00 248.0 1,725 60.0 250.00
Locked-Rotor 1,825.00 640.0 1,450.00 197.0 0 31.0 250.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 87.00 110.00 158.00 217.00 285.00 322.00 352.00
Rated Output (KW) 3.50 50.00 97.50 145.00 193.00 223.00 242.00
Efficiency (%) 0.0 93.0 95.8 96.5 96.5 96.5 96.2
Power Factor (%) 4.5 57.0 77.0 83.5 86.0 86.5 86.5
Speed (RPM) 1,800 1,796 1,794 1,790 1,785 1,782 1,780
Temp. Rise @ FL 0.0 40.0 30.0 0.0 65.0 85.0 105.0
Torque (ft-lbs) 0.00 183.00 366.00 550.00 736.00 846.00 920.00

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!!!