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 |