Description
284THFPA8028 – Marathon 25 HP Variable Speed Motor, 3 phase, 1800 RPM, 230/460 V, 284T Frame, TEFC – Y569
284THFPA8028 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: | 722856025227 | Weight: | 393 LB |
Packaged Length: | 35 IN | Packaged Width: | 26 IN |
Packaged Height: | 21.14 IN |
Nameplate Specifications
Output HP: | 25 Hp | Output KW: | 18.7 kW |
Frequency: | 60 Hz | Voltage: | 230/460 V |
Current: | 63.0/31.5 A | Speed: | 1765 rpm |
Service Factor: | 1 | Phase: | 3 |
Efficiency: | 91.7 % | Power Factor: | 82 |
Duty: | Continuous | Insulation Class: | H |
Design Code: | INV | KVA Code: | G |
Frame: | 284T | Enclosure: | Totally Enclosed Fan Cooled |
Thermal Protection: | Thermostats (N/C) | Ambient Temperature: | 40 °C |
Drive End Bearing Size: | 6311 | Opp Drive End Bearing Size: | 6210 |
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: | .325 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: | 28.58 in |
Frame Length: | 12.75 in | Shaft Diameter: | 1.875 in |
Shaft Extension: | 4.81 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) |
Locked-Rotor | 182.00 | 578.0 | 147.00 | 198.0 | 0 | 39.5 | 25.00 | |
Pull-Up | 165.00 | 524.0 | 140.00 | 188.0 | 900 | 25.00 | ||
2/3 | 150.00 | 476.0 | 155.00 | 208.0 | 1,200 | 25.00 | ||
No Load | 14.00 | 44.0 | 0.00 | 0.0 | 1,800 | 25.00 | ||
Break-Down | 115.00 | 365.0 | 195.00 | 262.0 | 1,625 | 66.0 | 25.00 | |
Full Load | 31.50 | 100.0 | 74.40 | 100.0 | 1,765 | 25.00 | ||
1/3 | 175.00 | 556.0 | 130.00 | 175.0 | 600 | 25.00 |
Load Characteristics
% of Rated Load | 0 % | 25 % | 50 % | 75 % | 100 % | 125 % | 150 % | 200 % |
Current (Amps) | 14.00 | 15.50 | 20.00 | 25.00 | 31.50 | 39.00 | 46.50 | 66.50 |
Rated Output (KW) | 0.75 | 5.50 | 10.00 | 15.00 | 20.50 | 25.50 | 31.20 | 43.50 |
Efficiency (%) | 0.0 | 86.5 | 91.0 | 92.4 | 91.7 | 91.0 | 88.5 | 84.0 |
Power Factor (%) | 6.0 | 43.0 | 65.0 | 75.5 | 82.0 | 82.5 | 84.0 | 81.5 |
Speed (RPM) | 1,800 | 1,794 | 1,785 | 1,775 | 1,765 | 1,760 | 1,745 | 1,715 |
Temp. Rise @ FL | 0.0 | 0.0 | 0.0 | 0.0 | 65.0 | 0.0 | 0.0 | 0.0 |
Torque (ft-lbs) | 0.00 | 18.50 | 37.00 | 55.50 | 74.40 | 93.50 | 112.00 | 150.00 |