Description
254TTFNA6576 – Marathon 7.50 HP Severe Duty Motor, 3 phase, 1200 RPM, 460 V, 254T Frame, TEFC – E636
254TTFNA6576 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: | 722856019585 | Weight: | 315 LB |
Packaged Length: | 31.25 IN | Packaged Width: | 22.25 IN |
Packaged Height: | 18 IN |
Nameplate Specifications
Output HP: | 7.50 Hp | Output KW: | 5.6 kW |
Frequency: | 60 Hz | Voltage: | 460 V |
Current: | 9.9 A | Speed: | 1175 rpm |
Service Factor: | 1.15 | Phase: | 3 |
Efficiency: | 91 % | Power Factor: | 78 |
Duty: | Continuous | Insulation Class: | F |
Design Code: | B | KVA Code: | H |
Frame: | 254T | Enclosure: | Totally Enclosed Fan Cooled |
Thermal Protection: | No | Ambient Temperature: | 40 °C |
Drive End Bearing Size: | 6309 | Opp Drive End Bearing Size: | 6210 |
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: | 1.319 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: | 23.65 in |
Frame Length: | 10.50 in | Shaft Diameter: | 1.625 in |
Shaft Extension: | 4.2 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) |
1/3 | 61.00 | 616.0 | 64.00 | 191.0 | 250 | 7.50 | ||
2/3 | 57.00 | 576.0 | 77.00 | 230.0 | 800 | 7.50 | ||
Break-Down | 39.50 | 399.0 | 103.00 | 307.0 | 1,065 | 70.0 | 7.50 | |
Full Load | 9.90 | 100.0 | 33.50 | 100.0 | 1,175 | 7.50 | ||
No Load | 4.80 | 48.0 | 0.00 | 0.0 | 1,200 | 7.50 | ||
Locked-Rotor | 63.50 | 641.0 | 72.00 | 215.0 | 0 | 42.0 | 7.50 | |
Pull-Up | 59.00 | 596.0 | 69.00 | 206.0 | 600 | 7.50 |
Load Characteristics
% of Rated Load | 0 % | 25 % | 50 % | 75 % | 100 % | 115 % | 125 % |
Current (Amps) | 4.80 | 5.30 | 6.50 | 8.00 | 9.90 | 11.00 | 12.00 |
Rated Output (KW) | 0.30 | 1.50 | 3.00 | 4.50 | 6.00 | 7.00 | 8.00 |
Efficiency (%) | 0.0 | 85.5 | 90.2 | 91.0 | 91.0 | 90.2 | 90.2 |
Power Factor (%) | 7.0 | 40.0 | 61.0 | 72.5 | 78.0 | 80.0 | 80.5 |
Speed (RPM) | 1,200 | 1,195 | 1,190 | 1,180 | 1,175 | 1,170 | 1,165 |
Temp. Rise @ FL | 0.0 | 25.0 | 20.0 | 0.0 | 40.0 | 55.0 | 70.0 |
Torque (ft-lbs) | 0.00 | 8.00 | 16.50 | 25.00 | 33.50 | 38.50 | 42.00 |