Catalog No - Y531

449THFS8046
Image differs from product
Features
  • 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)
  • Separate power supply required for blower motor
List Price: $55,378 USD

Visit Marathon Motors

How can we improve our Product Information?
General Specifications

Model : 449THFS8046 Catalog No : Y531
Part Description : 250,1800,TEBC,447/449T,3/60/460 Category : 2000:1 With Encoder Provision
Stock : Yes
Nameplate Specifications

Output HP : 250 HP Output KW : 187.0 kW
Frequency : 60 Hz Voltage : 460 V
Current : 295.0 A Speed : 1790 RPM
Service Factor : 1 Phase : 3
Efficiency : 95 % Duty : Continuous
Insulation Class : H Design Code : INV
KVA Code : H Frame : 447/449T
Enclosure : Totally Enclosed Blower cooled - Axial Overload Protector : No
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
Mounting : Rigid Base Motor Orientation : Horizontal
Drive End Bearing : Ball Opp Drive End Bearing : Ball
Frame Material : Cast Iron Shaft Type : T
Overall Length : 64.34 in Frame Length : 28.75 in
Shaft Diameter : 3.375 in Shaft Extension : 8.75 in
Assembly/Box Mounting : F1/F2 Capable UPC : 722856025449
Weight : 2,991.00 LB
Speed Characteristics

Curvepoint Current (Amps) Current (%) Torque (ft-lbs) Torque (%) Speed (RPM) Rated Output (KW) Power Factor (%) Rated Output (Hp)
Locked-Rotor 2,075.00 703.0 1,475.00 201.0 0 28.0 250.00
Break-Down 1,140.00 386.0 2,065.00 281.0 1,750 250.00
2/3 1,750.00 593.0 1,550.00 211.0 1,200 250.00
Full Load 295.00 100.0 734.00 100.0 1,790 250.00
1/3 2,000.00 678.0 1,325.00 181.0 600 250.00
Pull-Up 1,900.00 644.0 1,350.00 184.0 900 250.00
No Load 106.00 36.0 0.00 0.0 1,800 250.00
Load Characteristics

  • % of Rated Load
  • Current (Amps)
  • Rated Output (KW)
  • Efficiency (%)
  • Power Factor (%)
  • Speed (RPM)
  • Temp. Rise @ FL
  • Torque (ft-lb)
  • 0 %
  • 103.00
  • 4.500
  • 0.0
  • 8.0
  • 1,800
  • 0.0
  • 0.00
  • 25 %
  • 125.00
  • 52.500
  • 88.5
  • 52.0
  • 1,796
  • 0.0
  • 183.00
  • 50 %
  • 170.00
  • 100.000
  • 93.0
  • 73.0
  • 1,794
  • 0.0
  • 366.00
  • 75 %
  • 230.00
  • 148.000
  • 94.5
  • 81.0
  • 1,792
  • 0.0
  • 550.00
  • 100 %
  • 295.00
  • 196.000
  • 95.0
  • 84.0
  • 1,790
  • 65.0
  • 734.00
  • 115 %
  • 340.00
  • 225.000
  • 95.0
  • 85.0
  • 1,788
  • 85.0
  • 845.00
  • 125 %
  • 360.00
  • 245.000
  • 94.5
  • 86.0
  • 1,785
  • 0.0
  • 920.00
  • 200 %
  • 0.00
  • 0.000
  • 0.0
  • 0.0
  • 0
  • 0.0
  • 0.00