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449THFS8036 – Marathon 250 HP Variable Speed Motor, 3 phase, 1800 RPM, 460 V, 449T Frame, TEFC – Y579

449THFS8036 – Marathon 250 HP Variable Speed Motor, 3 phase, 1800 RPM, 460 V, 449T Frame, TEFC – Y579

449THFS8036 Marathon 2000:1 With Encoder Provision Motors

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

  • MAX GUARD® Class H insulation system
  • Constant torque operation from 0 to base speed on vector drive, including TEFC (On Volts/Hertz drives, TEFC motors are limited to 20:1 constant torque
  • Constant HP operation to twice base speed (143-256 frame);1.5 times base (all others)
  • Optimized for operation with IGBT inverter (NEMA Design A)
  • Normally closed thermostats (one per phase, class F)
  • Blue Chip quality, cast iron frame and brackets
  • Patented “fracket” design (TEBC enclosure)
  • Suitable for 20:1 CT on vector drive, continuous duty or 2000:1

Marathon Motors
Regal Beloit

Original price was: $70,381.00.Current price is: $40,894.18.

Description

449THFS8036 – Marathon 250 HP Variable Speed Motor, 3 phase, 1800 RPM, 460 V, 449T Frame, TEFC – Y579

449THFS8036 Marathon 2000:1 With Encoder Provision Motors

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

General Specifications

UPC: 722856025517 Weight: 0 LB
Packaged Length: 66 IN Packaged Width: 46 IN
Packaged Height: 32.86 IN

Nameplate Specifications

Output HP: 250 Hp Output KW: 187.0 kW
Frequency: 60 Hz Voltage: 460 V
Current: 280.0 A Speed: 1788 rpm
Service Factor: 1 Phase: 3
Efficiency: 95 % Power Factor: 89
Duty: Continuous Insulation Class: H
Design Code: INV KVA Code: J
Frame: 447/449T Enclosure: Totally Enclosed Fan Cooled
Thermal Protection: Thermostats (N/C) Ambient Temperature: 40 °C
Drive End Bearing Size: 6319 Opp Drive End Bearing Size: 6318
UL: Recognized CSA: Y
CE: Y IP Code: 43

Technical Specifications

Electrical Type: Squirrel Cage Inverter Duty Starting Method: Inverter Only
Poles: 4 Rotation: Reversible
Resistance Main: .011 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: 54.03 in
Frame Length: 28.75 in Shaft Diameter: 3.375 in
Shaft Extension: 8.75 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)
Pull-Up 2,200.00 786.0 1,000.00 136.0 900 250.00
2/3 1,950.00 696.0 1,200.00 163.0 1,200 250.00
1/3 2,400.00 857.0 1,000.00 136.0 600 250.00
Break-Down 1,400.00 500.0 2,500.00 341.0 1,725 65.0 250.00
Full Load 280.00 100.0 734.00 100.0 1,788 250.00
Locked-Rotor 2,450.00 875.0 1,250.00 170.0 0 22.0 250.00
No Load 85.00 30.0 0.00 0.0 1,800 250.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 125 % 150 % 200 %
Current (Amps) 85.00 110.00 155.00 215.00 280.00 340.00 0.00 0.00
Rated Output (KW) 5.00 52.00 99.00 147.00 196.00 245.00 0.00 0.00
Efficiency (%) 0.0 89.5 93.6 95.0 95.0 95.0 0.0 0.0
Power Factor (%) 7.0 59.0 78.0 85.0 89.0 90.0 0.0 0.0
Speed (RPM) 1,800 1,796 1,794 1,790 1,788 1,784 0 0
Temp. Rise @ FL 0.0 0.0 0.0 0.0 60.0 0.0 0.0 0.0
Torque (ft-lbs) 0.00 183.00 366.00 550.00 734.00 920.00 0.00 0.00

Marathon Motors
Regal Beloit

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