Marathon 150 HP General Purpose Motor, 3 phase, 1800 RPM, 575 V, 444T Frame, ODP - U911A

Catalog #:U911A
Part #:444TTDS16043
  • Meets or exceeds NEMA Premium® efficiency. Model is in compliance with EISA2007
  • Motor will accept a C-face kit
  • 12 Leads for WYE-DELTA, part winding on low voltage, or across-the-line starting
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General Specifications

UPC: 722856013620 Weight: 1,376.00 LB
Packaged Length: 44.88 IN Packaged Width: 39.25 IN
Packaged Height: 29.33 IN

Nameplate Specifications

Output HP: 150 Hp Output KW: 112.0 kW
Frequency: 60 Hz Voltage: 575 V
Current: 136.0 A Speed: 1785 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 95.8 % Power Factor: 86.5
Duty: Continuous Insulation Class: F
Design Code: B KVA Code: F
Frame: 444T Enclosure: Drip Proof
Thermal Protection: No Ambient Temperature: 40 °C
Drive End Bearing Size: 6318 Opp Drive End Bearing Size: 6316
UL: Recognized CSA: Y
CE: Y IP Code: 12

Technical Specifications

Electrical Type: Squirrel Cage Inverter Rated Starting Method: Part Wdg Start & Wye Start Delta Run Or Inverter
Poles: 4 Rotation: Reversible
Resistance Main: .0295 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: 37.83 in
Frame Length: 18.50 in Shaft Diameter: 3.375 in
Shaft Extension: 8.75 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)
2/3 750.00 441.0 650.00 147.0 1,200 150.00
Full Load 170.00 100.0 442.00 100.0 1,785 150.00
Break-Down 575.00 338.0 1,025.00 232.0 1,700 65.0 150.00
No Load 47.00 28.0 0.00 0.0 1,800 150.00
Pull-Up 850.00 500.0 525.00 119.0 900 150.00
Locked-Rotor 1,000.00 588.0 600.00 136.0 0 26.0 150.00
1/3 950.00 559.0 500.00 113.0 600 150.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 37.60 52.00 74.40 103.20 136.00 153.60 171.20
Rated Output (KW) 2.50 30.00 58.50 87.50 117.00 132.00 147.00
Efficiency (%) 0.0 93.6 95.4 95.8 95.8 95.4 95.0
Power Factor (%) 7.5 57.0 79.5 85.0 86.5 86.5 86.5
Speed (RPM) 1,800 1,795 1,792 1,788 1,785 1,780 1,778
Temp. Rise @ FL 0.0 0.0 0.0 0.0 37.0 50.0 65.0
Torque (ft-lbs) 0.00 110.00 220.00 331.00 442.00 498.00 554.00
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