Marathon 7.50 HP Definite Purpose AC Motor, 3 phase, 1200 RPM, 460 V, 254T Frame, TEAO - S513

Catalog #:S513
Part #:254TTTNA17077
  • Blue Chip® quality, 100% cast iron construction for rigidity and reduced vibration
  • Internal and external epoxy paint
  • CR200 Corona resistant magnet wire
  • Class H insulation system
  • Normally closed thermostats (one per phase, Class H)
  • Heat stabilized ball bearings and high temperature grease
  • Suitable for inverter use for 20:1 Variable Torque with 1.0 S.F. in 90°C ambient
  • Suitable for 90OC ambient at 1.15 S.F. or 100OC ambient at 1.0 S.F.
  • Extended grease tubes, Regreasable in service
  • 8 Foot Leads
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Weight:318 LB
List Price: $4,887.00

General Specifications

UPC: 722856042880 Weight: 318 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: 9.8 A Speed: 1170 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 90.2 % Power Factor: 78
Duty: Continuous Insulation Class: H
Design Code: B KVA Code: H
Frame: 254T Enclosure: Totally Enclosed Air Over
Thermal Protection: No Ambient Temperature: 90 °C
Drive End Bearing Size: 6309 Opp Drive End Bearing Size: 6210
UL: Recognized CSA: Y
CE: N IP Code: 54

Technical Specifications

Electrical Type: Squirrel Cage Inverter Rated Starting Method: Line Or Inverter
Poles: 6 Rotation: Reversible
Resistance Main: 1.37 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: 20.61 in
Shaft Diameter: 1.625 in Shaft Extension: 4.25 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)
Break-Down 39.50 403.0 96.00 287.0 1,000 69.0 7.50
1/3 61.00 622.0 65.00 194.0 250 7.50
Pull-Up 57.00 582.0 65.00 194.0 600 7.50
Locked-Rotor 63.50 648.0 75.00 224.0 0 42.0 7.50
2/3 52.00 531.0 75.00 224.0 800 7.50
No Load 4.80 49.0 0.00 0.0 1,200 7.50
Full Load 9.80 100.0 33.50 100.0 1,170 7.50

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 4.80 5.20 6.40 8.00 9.80 11.00 12.00
Rated Output (KW) 0.30 1.70 3.20 4.60 6.20 7.20 7.80
Efficiency (%) 0.0 85.5 90.2 91.0 90.2 90.2 89.5
Power Factor (%) 5.5 40.0 62.0 73.0 78.0 81.0 82.0
Speed (RPM) 1,200 1,192 1,185 1,180 1,170 1,165 1,162
Temp. Rise @ FL 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Torque (ft-lbs) 0.00 8.00 16.50 25.00 33.50 38.50 42.00
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