Marathon 2 HP Definite Purpose AC Motor, 3 phase, 1800 RPM, 230/460 V, 145JM Frame, ODP - M309

Catalog #:M309
Part #:145TTDR5352
  • NEMA JM pump shaft dimensions
  • JMV frame includes drip cover for vertical mount without base
  • JM frame has rigid base, drip cover not included
  • Ball bearings, mechanically locked on shaft end
  • Continuous duty
  • 1.15 Service Factor
  • UL Recognized and CSA Certified
  • UL Listed for Fire Pump applications (except as noted)
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General Specifications

Packaged Length: 16.38 IN Packaged Width: 10.5 IN
Packaged Height: 8.62 IN

Nameplate Specifications

Output HP: 2 Hp Output KW: 1.49 kW
Frequency: 60 Hz Voltage: 230/460 V
Current: 6.2/3.1 A Speed: 1740 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 81.5 % Power Factor: 75.5
Duty: CONTINUOUS Insulation Class: B
Design Code: B KVA Code: K
Frame: 145JM Enclosure: DP
Thermal Protection: NOT Ambient Temperature: 40 °C
Drive End Bearing Size: 6206 Opp Drive End Bearing Size: 6203
UL: Recognized CSA: Y
CE: Y IP Code: 22

Technical Specifications

Electrical Type: SQ CAGE IND RUN Starting Method: ACROSS THE LINE
Poles: 4 Rotation: REV
Resistance Main: 9.35 Ohms Mounting: RIGID
Motor Orientation: HORIZONTAL Drive End Bearing: BALL
Opp Drive End Bearing: BALL Frame Material: ROLLED STEEL
Shaft Type: JM Overall Length: 14.12 in
Frame Length: 8.06 in Shaft Diameter: 0.88 in
Shaft Extension: 4.25 in Assembly/Box Mounting: F1 Only

Speed Characteristics

Curvepoint Current (Amps) Current (%) Torque (ft-lbs) (%) Speed (RPM) Rated Output (KW) Power Factor (%) Rated Output (Hp)
2/3 17.00 548.0 17.20 287.0 800 2.00
No Load 2.00 65.0 0.00 0.0 1,800 2.00
Full Load 3.10 100.0 6.00 100.0 1,740 2.00
Locked-Rotor 22.60 729.0 17.60 293.0 0 71.5 2.00
Break-Down 14.50 468.0 22.50 375.0 1,250 84.0 2.00
Pull-Up 19.00 613.0 16.00 267.0 600 2.00
1/3 21.00 677.0 16.50 275.0 135 2.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 % 150 % 175 %
Current (Amps) 2.00 2.10 2.40 2.70 3.10 3.40 3.60 4.20 4.80
Rated Output (KW) 0.17 0.53 0.94 1.40 1.80 2.10 2.30 2.70 3.30
Efficiency (%) 0.0 71.0 79.5 82.5 81.5 81.5 81.5 80.0 79.5
Power Factor (%) 10.5 31.0 50.0 63.5 75.5 77.0 78.5 82.5 85.0
Speed (RPM) 1,800 1,787 1,775 1,760 1,740 1,735 1,730 1,712 1,690
Temp. Rise @ FL 0.0 0.0 0.0 0.0 55.0 75.0 90.0 0.0 0.0
Torque (ft-lbs) 0.00 1.50 3.00 4.50 6.00 7.00 7.60 9.20 11.00
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