Marathon 20 HP Close-Coupled Pump Motor, 3 phase, 1800 RPM, 575 V, 256JP Frame, TEFC - GT3525

Catalog #:GT3525
Part #:256TTFCA6038
  • Meets or exceeds NEMA Premium® efficiency. Model is in compliance with EISA2007
  • Inverter Duty 10:1 Variable Torque and 2:1 Constant Torque
  • Class F Insulation
  • Standard assembly F1, reversible to F2 assembly
  • Will become build-up item when current stock is gone
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Weight:450.00 LB
List Price: $4,350.00

General Specifications

UPC: 722856005854 Weight: 450.00 LB
Packaged Length: 32.62 IN Packaged Width: 23.62 IN
Packaged Height: 18.54 IN

Nameplate Specifications

Output HP: 20 Hp Output KW: 14.9 kW
Frequency: 60 Hz Voltage: 575 V
Current: 19.4 A Speed: 1773 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: 256JP Enclosure: Totally Enclosed Fan Cooled
Thermal Protection: No Ambient Temperature: 40 °C
Drive End Bearing Size: 6309 Opp Drive End Bearing Size: 6209
UL: Recognized CSA: Y
CE: Y IP Code: 43

Technical Specifications

Electrical Type: Squirrel Cage Inverter Rated Starting Method: Line Or Inverter
Poles: 4 Rotation: Reversible
Resistance Main: .353 Ohms Mounting: Rigid Base
Motor Orientation: Horizontal Drive End Bearing: Ball
Opp Drive End Bearing: Ball Frame Material: Cast Iron
Shaft Type: JP Overall Length: 30.71 in
Shaft Diameter: 1.25 in Shaft Extension: 8.16 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)
1/3 138.00 569.0 85.00 142.0 600 20.00
Break-Down 93.00 384.0 156.00 262.0 1,700 67.5 20.00
No Load 9.70 40.0 0.00 0.0 1,800 7.0 20.00
2/3 123.00 509.0 105.00 175.0 1,200 20.00
Locked-Rotor 140.00 595.0 104.00 175.0 0 39.0 20.00
Pull-Up 130.00 539.0 88.00 148.0 900 20.00
Full Load 24.00 100.0 59.50 100.0 1,770 83.0 20.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 7.76 9.04 12.00 15.36 19.20 21.60 23.84
Rated Output (KW) 0.40 4.30 8.30 12.10 16.20 18.70 20.50
Efficiency (%) 0.0 86.5 91.7 93.0 93.0 92.4 92.4
Power Factor (%) 5.0 46.5 69.0 79.0 83.0 84.0 85.5
Speed (RPM) 1,800 1,792 1,787 1,780 1,770 1,765 1,760
Temp. Rise @ FL 0.0 0.0 0.0 0.0 60.0 80.0 100.0
Torque (ft-lbs) 0.00 15.00 29.50 44.50 59.50 68.50 75.00
Catalog #:GT3525A
Part #:256TTFCD6038
List Price: $4,350.00
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