Marathon 25 HP General Purpose Motor, 3 phase, 3600 RPM, 230/460 V, 256T Frame, ODP - GT0027

Catalog #:GT0027
Part #:256TTDCA6001
  • Meets or exceeds NEMA Premium® efficiency. Model is in compliance with EISA2007
  • 182T-215T models steel frame, 254T-449T models cast iron frame
  • Inverter Duty 10:1 Variable Torque and 2:1 Constant Torque
  • Class F Insulation
  • Standard assembly F1, reversible to F2 assembly
  • 12 Leads for WYE-DELTA, part winding on low voltage, or across-the-line starting
  • Will become build-up item when current stock is gone
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General Specifications

UPC: 722856000255 Weight: 338.00 LB
Packaged Length: 27 IN Packaged Width: 20.5 IN
Packaged Height: 18 IN

Nameplate Specifications

Output HP: 25 Hp Output KW: 18.7 kW
Frequency: 60 Hz Voltage: 230/460 V
Current: 56.0/28.0 A Speed: 3525 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 91.7 % Power Factor: 89
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: 6209 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: 2 Rotation: Reversible
Resistance Main: .34 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: 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 8.00 28.0 0.00 0.0 3,600 10.0 25.00
Full Load 28.50 100.0 37.00 100.0 3,545 89.0 25.00
1/3 175.00 615.0 59.50 160.0 1,200 25.00
Break-Down 110.00 385.0 100.00 270.0 3,300 71.0 25.00
Locked-Rotor 182.00 640.0 70.00 190.0 0 38.5 25.00
Pull-Up 165.00 580.0 63.00 170.0 1,800 25.00
2/3 150.00 526.0 73.50 198.0 2,400 25.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 8.00 10.50 15.50 22.00 28.00 32.50 36.00
Rated Output (KW) 0.50 5.20 10.20 15.20 20.30 23.50 25.60
Efficiency (%) 0.0 88.5 91.0 91.7 91.7 91.7 91.0
Power Factor (%) 8.0 62.0 81.0 87.0 90.0 90.0 90.0
Speed (RPM) 3,600 3,585 3,570 3,560 3,545 3,525 3,505
Temp. Rise @ FL 0.0 0.0 0.0 0.0 30.0 40.0 50.0
Torque (ft-lbs) 0.00 9.20 18.50 27.70 37.00 42.70 46.50
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