Marathon 10 HP Severe Duty Motor, 3 phase, 1200 RPM, 230/460 V, 256T Frame, TEFC - E480

Catalog #:E480
Part #:256TTFNA6596
  • Meets or exceeds NEMA Premium® efficiency. Model is in compliance with EISA2007
  • C-face addition may result in non-NEMA "BA" dim. For new "BA" dim consult chart found in modification section
  • Blue Chip® quality, 100% cast iron construction for rigidity and reduced vibration
  • Provisions to add stub shaft for an encoder (182T-449T, TEFC only)
  • Internal and external epoxy paint
  • MAX GUARD® Class F insulation system
  • Constant Torque speed range is listed in CT SPEED RANGE column
  • 1.15 Service Factor on sinewave, 1.0 Service Factor on IGBT power
  • Bearing caps (254T and larger), Precision balanced to .08”/sec
  • Meets IEEE45 USCG Marine Duty, IP54 Construction, Meets Ford EM1 Automotive Duty Specification
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General Specifications

UPC: 722856019400 Weight: 388.00 LB
Packaged Length: 31.25 IN Packaged Width: 22.25 IN
Packaged Height: 18 IN

Nameplate Specifications

Output HP: 10 Hp Output KW: 7.5 kW
Frequency: 60 Hz Voltage: 230/460 V
Current: 26.2/13.1 A Speed: 1176 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 91 % Power Factor: 79
Duty: Continuous Insulation Class: F
Design Code: B KVA Code: H
Frame: 256T 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: .934 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: 25.40 in
Frame Length: 12.25 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 80.00 611.0 85.00 190.0 250 10.00
Full Load 13.10 100.0 44.70 100.0 1,176 10.00
Pull-Up 78.00 595.0 86.00 192.0 400 10.00
2/3 75.00 573.0 96.00 215.0 750 10.00
Break-Down 53.50 408.0 139.00 311.0 1,055 69.5 10.00
Locked-Rotor 81.00 618.0 92.00 206.0 0 41.0 10.00
No Load 6.50 50.0 0.00 0.0 1,200 10.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 6.50 7.00 8.50 10.50 13.10 15.00 16.00
Rated Output (KW) 0.30 2.00 4.00 6.00 8.00 9.20 10.50
Efficiency (%) 0.0 84.0 90.2 91.0 91.0 90.2 89.5
Power Factor (%) 5.5 39.5 61.0 72.5 79.0 80.0 81.5
Speed (RPM) 1,200 1,195 1,190 1,180 1,176 1,170 1,165
Temp. Rise @ FL 0.0 30.0 25.0 0.0 40.0 55.0 70.0
Torque (ft-lbs) 0.00 11.00 22.00 33.50 44.70 51.00 56.00
Catalog #:E480A
Part #:256TTFCD6596
List Price: $3,264.00
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