Marathon 20 HP General Purpose Motor, 3 phase, 1800 RPM, 230/460 V, 256T Frame, ODP - GT0062

Catalog #:GT0062
Part #:256TTDBD6026
  • Meets or exceeds NEMA Premium® efficiency. Model is in compliance with EISA2007
  • 182T-365T models steel frame, 404T-449T models cast iron frame
  • Inverter Duty 10:1 Variable Torque and 2:1 Constant Torque
  • Class F Insulation
  • Standard F1, reversible to F2 assembly. Dual frame mounting holes.
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Weight:314.00 LB
List Price: $2,273.00

General Specifications

UPC: 722856060440 Weight: 314.00 LB
Packaged Length: 31.77 IN Packaged Width: 28.03 IN
Packaged Height: 28.14 IN

Nameplate Specifications

Output HP: 20 Hp Output KW: 14.9 kW
Frequency: 60 Hz Voltage: 230/460 V
Current: 48.5/24.3 A Speed: 1770 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 93 % Power Factor: 83.5
Duty: Continuous Insulation Class: F
Design Code: B KVA Code: G
Frame: 256T Enclosure: Drip Proof
Thermal Protection: No Ambient Temperature: 40 °C
Drive End Bearing Size: 6309 Opp Drive End Bearing Size: 6208
UL: Recognized CSA: Y
CE: Y IP Code: 22

Technical Specifications

Electrical Type: Squirrel Cage Inverter Rated Starting Method: Line Or Inverter
Poles: 4 Rotation: Reversible
Resistance Main: .546 Ohms Mounting: Rigid Base
Motor Orientation: Horizontal Drive End Bearing: Ball
Opp Drive End Bearing: Ball Frame Material: Rolled Steel
Shaft Type: T Overall Length: 24.22 in
Shaft Diameter: 1.625 in Shaft Extension: 4 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)
No Load 9.80 40.0 0.00 0.0 1,800 5.0 20.00
1/3 136.00 560.0 96.00 162.0 600 20.00
Full Load 24.30 100.0 59.40 100.0 1,770 83.5 20.00
Pull-Up 129.00 531.0 98.00 165.0 900 20.00
Locked-Rotor 144.00 593.0 118.00 199.0 0 43.0 20.00
2/3 117.00 481.0 122.00 205.0 1,200 20.00
Break-Down 82.00 337.0 146.00 246.0 1,628 69.0 20.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 9.80 11.20 14.60 19.10 24.30 27.70 30.10
Rated Output (KW) 0.75 4.20 8.00 12.00 16.00 18.60 20.50
Efficiency (%) 0.0 89.5 92.4 93.0 93.0 92.7 92.1
Power Factor (%) 5.0 47.0 69.5 79.5 83.5 84.5 85.0
Speed (RPM) 1,800 1,793 1,785 1,778 1,770 1,765 1,762
Temp. Rise @ FL 0.0 0.0 0.0 0.0 45.0 60.0 75.0
Torque (ft-lbs) 0.00 14.50 29.50 44.30 59.40 68.40 74.50
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