Marathon 10 HP Close-Coupled Pump Motor, 3 phase, 1200 RPM, 230/460 V, 256JMV Frame, ODP - GT0420

Catalog #:GT0420
Part #:256TTDCA6082
  • Meets or exceeds NEMA Premium® efficiency. Model is in compliance with EISA2007
  • Inverter Duty 10:1 Variable Torque and 2:1 Constant Torque
  • Nameplated 60/50 hertz, 190/380 volts at next lower HP
  • 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:348.00 LB
List Price: $3,328.00

General Specifications

UPC: 722856049841 Weight: 348.00 LB
Packaged Length: 31.77 IN Packaged Width: 28.03 IN
Packaged Height: 28.14 IN

Nameplate Specifications

Output HP: 10 Hp Output KW: 7.5 kW
Frequency: 60 Hz Voltage: 230/460 V
Current: 27.6/13.8 A Speed: 1182 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 91.7 % Power Factor: 74
Duty: Continuous Insulation Class: F
Design Code: B KVA Code: G
Frame: 256JMV 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: 6 Rotation: Reversible
Resistance Main: 1.02 Ohms Mounting: Rigid Base
Motor Orientation: Horizontal Or Shaft Down Drive End Bearing: Ball
Opp Drive End Bearing: Ball Frame Material: Cast Iron
Shaft Type: JM Overall Length: 25.99 in
Shaft Diameter: 1.25 in Shaft Extension: 5.25 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)
1/3 70.00 508.0 58.00 130.0 400 10.00
Break-Down 48.50 355.0 130.00 292.0 1,100 70.0 10.00
Full Load 13.80 100.0 44.50 100.0 1,180 74.0 10.00
Pull-Up 65.00 475.0 61.00 137.0 600 10.00
2/3 60.00 435.0 71.50 160.0 800 10.00
Locked-Rotor 73.00 530.0 68.00 153.0 0 35.0 10.00
No Load 7.20 52.0 0.00 0.0 1,200 5.0 10.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 7.00 7.60 9.20 11.50 13.80 15.20 16.80
Rated Output (KW) 0.50 2.20 4.20 6.20 8.20 9.40 10.20
Efficiency (%) 0.0 85.5 90.2 91.7 91.7 91.7 91.0
Power Factor (%) 5.0 36.0 56.0 67.0 74.0 78.0 79.0
Speed (RPM) 1,200 1,195 1,192 1,185 1,182 1,180 1,175
Temp. Rise @ FL 0.0 0.0 0.0 0.0 30.0 40.0 50.0
Torque (ft-lbs) 0.00 11.00 22.00 33.20 44.50 51.50 56.00
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