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449TTFS6577 – Marathon 250 HP Severe Duty Motor, 3 phase, 1200 RPM, 460 V, 449T Frame, TEFC – E774

449TTFS6577 – Marathon 250 HP Severe Duty Motor, 3 phase, 1200 RPM, 460 V, 449T Frame, TEFC – E774

449TTFS6577 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: $56,226.00.Current price is: $40,077.89.

Description

449TTFS6577 – Marathon 250 HP Severe Duty Motor, 3 phase, 1200 RPM, 460 V, 449T Frame, TEFC – E774

449TTFS6577 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: 722856020758 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: 300.0 A Speed: 1190 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 95.8 % Power Factor: 81
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: 6 Rotation: Reversible
Resistance Main: .012 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)
Break-Down 1,125.00 375.0 2,825.00 256.0 1,150 250.00
2/3 1,600.00 533.0 1,900.00 172.0 800 250.00
No Load 115.00 38.0 0.00 0.0 1,200 250.00
1/3 1,775.00 592.0 1,650.00 150.0 400 250.00
Pull-Up 1,700.00 567.0 1,700.00 154.0 600 250.00
Full Load 300.00 100.0 1,103.00 100.0 1,190 250.00
Locked-Rotor 1,825.00 608.0 1,825.00 165.0 0 23.0 250.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 115.00 130.00 175.00 230.00 300.00 330.00 365.00
Rated Output (KW) 4.00 50.50 97.50 146.00 194.00 219.00 243.00
Efficiency (%) 0.0 92.4 95.4 96.0 95.8 95.8 95.8
Power Factor (%) 3.5 49.0 70.0 79.0 81.0 82.5 83.0
Speed (RPM) 1,200 1,196 1,194 1,192 1,190 1,188 1,186
Temp. Rise @ FL 0.0 50.0 45.0 0.0 65.0 85.0 105.0
Torque (ft-lbs) 0.00 275.00 550.00 825.00 1,103.00 1,245.00 1,385.00

Marathon Motors
Regal Beloit

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