Marathon 150 HP Definite Purpose AC Motor, 3 phase, 1200 RPM, 460 V, 445T Frame, TEFC - E958

Catalog #:E958
Part #:445TTFN4087
  • Meets or exceeds NEMA Premium® efficiencies, except where noted NEMA Premium® models are in compliance with EISA2007
  • Suitable for use on a VFD. Variable Torque and Constant Torque (as noted)
  • 1.15 Service Factor on sinewave, 1.0 Service Factor on IGBT power
  • F1 conduit box on Rigid Base, F3 on C-Face Footed (Rigid Base) motors
  • Bearing Current Protection (BCP), as noted
  • Shaft slinger, Class F insulation, 1.15 Service Factor, Ball bearings (except as noted)
  • C-Face Footed models are rated 60/50 Hz, same HP
  • Motors accept C-face kits, as noted
  • UL Recognized, CSA Certified and CE Mark
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General Specifications

Packaged Length: 56 IN Packaged Width: 46 IN
Packaged Height: 33.45 IN

Nameplate Specifications

Output HP: 150 Hp Output KW: 112 kW
Frequency: 60 Hz Voltage: 460 V
Current: 182 A Speed: 1190 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 95 % Power Factor: 81.5
Duty: CONTINUOUS Insulation Class: H
Design Code: B KVA Code: G
Frame: 445T Enclosure: TEFC
Thermal Protection: NOT Ambient Temperature: 40 °C
Drive End Bearing Size: NU318 Opp Drive End Bearing Size: 6316
UL: Recognized CSA: Y
CE: Y IP Code: 43

Technical Specifications

Electrical Type: SQ CAGE IND RUN Starting Method: ACROSS THE LINE
Poles: 6 Rotation: REV
Resistance Main: 0.029 Ohms Mounting: RIGID
Motor Orientation: HORIZONTAL Drive End Bearing: ROLLER
Opp Drive End Bearing: BALL Frame Material: CAST IRON
Shaft Type: T Overall Length: 43.35 in
Frame Length: 20.25 in Shaft Diameter: 3.38 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)
Pull-Up 1,000.00 549.0 1,000.00 151.0 600 150.00
1/3 1,050.00 577.0 1,000.00 151.0 400 150.00
Full Load 182.00 100.0 662.00 100.0 1,190 150.00
No Load 72.50 40.0 0.00 0.0 1,200 150.00
2/3 900.00 495.0 1,050.00 159.0 800 150.00
Locked-Rotor 1,085.00 596.0 1,200.00 181.0 0 30.5 150.00
Break-Down 600.00 330.0 1,675.00 253.0 1,150 65.0 150.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 72.50 82.00 109.00 143.00 182.00 207.00 225.00
Rated Output (KW) 3.00 31.00 59.50 88.50 118.00 136.00 148.00
Efficiency (%) 0.0 91.0 94.1 95.0 95.0 94.5 94.5
Power Factor (%) 5.0 47.0 68.0 77.0 81.5 82.0 83.0
Speed (RPM) 1,200 1,198 1,196 1,192 1,190 1,185 1,182
Temp. Rise @ FL 0.0 0.0 0.0 0.0 75.0 105.0 0.0
Torque (ft-lbs) 0.00 165.00 330.00 496.00 662.00 762.00 832.00
Catalog #:E289
Part #:445TTFN6087
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