Marathon 10 HP Close-Coupled Pump Motor, 3 phase, 1200 RPM, 230/460 V, 256JMV Frame, ODP - GT0458

Catalog #:GT0458
Part #:256TTDBD6082
  • 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
  • Steel frame with Class F Insulation
  • Standard F1, reversible to F2 assembly. Dual frame mounting holes.
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Weight:345 LB
List Price: $3,520.00

General Specifications

UPC: 722856063823 Weight: 345 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: 25.6/12.8 A Speed: 1182 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 91.7 % Power Factor: 80
Duty: Continuous Insulation Class: F
Design Code: B KVA Code: H
Frame: 256JM 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: Selective Clockwise
Resistance Main: 1.066 Ohms Mounting: Rigid Base
Motor Orientation: Horizontal Drive End Bearing: Ball
Opp Drive End Bearing: Ball Frame Material: Rolled Steel
Shaft Type: JM Overall Length: 25.99 in
Frame Length: 12.20 in Shaft Diameter: 1.249 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)
Pull-Up 68.00 531.0 78.00 175.0 600 10.00
1/3 73.00 570.0 76.50 172.0 400 10.00
Locked-Rotor 80.00 625.0 93.00 209.0 0 44.0 10.00
Break-Down 46.00 359.0 113.00 254.0 1,085 68.0 10.00
No Load 6.10 48.0 0.00 0.0 1,200 6.0 10.00
Full Load 12.80 100.0 44.50 100.0 1,182 80.0 10.00
2/3 62.00 484.0 96.00 216.0 800 10.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 6.10 6.70 8.30 10.40 12.80 14.50 15.70
Rated Output (KW) 0.50 2.20 4.20 6.10 8.20 9.40 10.30
Efficiency (%) 0.0 85.5 90.2 91.7 91.7 91.4 90.6
Power Factor (%) 6.0 41.0 63.0 74.5 80.0 81.5 82.5
Speed (RPM) 1,200 1,195 1,192 1,185 1,182 1,178 1,175
Temp. Rise @ FL 0.0 0.0 0.0 0.0 40.0 50.0 60.0
Torque (ft-lbs) 0.00 11.00 22.00 33.20 44.50 51.30 55.90
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