Marathon 20 HP Definite Purpose AC Motor, 3 phase, 900 RPM, 460 V, 324T Frame, TEAO - S523

Catalog #:S523
Part #:324TTTS18601
  • 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:536 LB
List Price: $8,982.00

General Specifications

UPC: 722856042941 Weight: 536 LB
Packaged Length: 37.88 IN Packaged Width: 31.88 IN
Packaged Height: 24.39 IN

Nameplate Specifications

Output HP: 20 Hp Output KW: 14.9 kW
Frequency: 60 Hz Voltage: 460 V
Current: 29.5 A Speed: 882 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 90.2 % Power Factor: 70
Duty: Continuous Insulation Class: H
Design Code: B KVA Code: F
Frame: 324T Enclosure: Totally Enclosed Air Over
Thermal Protection: No Ambient Temperature: 90 °C
Drive End Bearing Size: 6312 Opp Drive End Bearing Size: 6311
UL: No CSA: Y
CE: N IP Code: 54

Technical Specifications

Electrical Type: Squirrel Cage Inverter Rated Starting Method: Line Or Inverter
Poles: 8 Rotation: Reversible
Resistance Main: .365 Ohms Mounting: Rigid Base
Motor Orientation: Horizontal Drive End Bearing: Ball / Heat Stabilized
Opp Drive End Bearing: Ball / Heat Stabilized Frame Material: Cast Iron
Shaft Type: T Overall Length: 27.50 in
Frame Length: 13.00 in Shaft Diameter: 2.125 in
Shaft Extension: 5.5 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)
2/3 100.00 339.0 150.00 126.0 600 20.00
Pull-Up 115.00 390.0 140.00 118.0 450 20.00
1/3 125.00 424.0 140.00 118.0 300 20.00
No Load 16.00 54.0 0.00 0.0 900 20.00
Locked-Rotor 135.00 458.0 160.00 134.0 0 30.0 20.00
Full Load 29.50 100.0 119.00 100.0 882 20.00
Break-Down 80.00 271.0 245.00 206.0 825 60.0 20.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 16.00 17.00 20.00 24.00 29.50 33.00 36.00
Rated Output (KW) 1.00 4.50 8.50 12.50 16.50 19.20 21.00
Efficiency (%) 0.0 84.0 89.5 90.2 90.2 90.2 89.5
Power Factor (%) 5.0 33.0 52.0 64.0 70.0 72.0 73.0
Speed (RPM) 900 895 892 888 882 880 875
Temp. Rise @ FL 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Torque (ft-lbs) 0.00 29.50 59.00 89.00 119.00 138.00 150.00
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