Marathon 20 HP General Purpose Motor, 3 phase, 1200 RPM, 575 V, 286T Frame, TEFC - E008

Catalog #:E008
Part #:286TTFC6081
  • Meets or exceeds NEMA Premium® efficiency. Model is 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
  • C-Face Footed models are rated 60/50 Hz, same HP
  • Motors accept C-face kits, as noted
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General Specifications

UPC: 722856017109 Weight: 429.00 LB
Packaged Length: 31.25 IN Packaged Width: 22.25 IN
Packaged Height: 18 IN

Nameplate Specifications

Output HP: 20 Hp Output KW: 14.9 kW
Frequency: 60 Hz Voltage: 575 V
Current: 21.0 A Speed: 1185 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 92.4 % Power Factor: 75
Duty: Continuous Insulation Class: F
Design Code: N (IEC) KVA Code: G
Frame: 286T Enclosure: Totally Enclosed Fan Cooled
Thermal Protection: No Ambient Temperature: 40 °C
Drive End Bearing Size: 6309 Opp Drive End Bearing Size: 6308
UL: Recognized CSA: Y
CE: Y IP Code: 43

Technical Specifications

Electrical Type: Squirrel Cage Inverter Rated Starting Method: Line Or Inverter
Poles: 6 Rotation: Reversible
Mounting: Rigid Base Motor Orientation: Horizontal
Drive End Bearing: Ball Opp Drive End Bearing: Ball
Frame Material: Cast Iron Shaft Type: T
Overall Length: 27.83 in Shaft Diameter: 1.875 in
Shaft Extension: 4.87 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)
Full Load 21.00 100.0 88.80 100.0 1,185 16.20 77.5 20.00
Break-Down 63.00 300.0 226.00 254.0 1,165 43.50 86.0 20.00
Pull-Up 114.00 542.0 122.50 138.0 750 20.00
Locked-Rotor 120.00 571.0 144.00 162.0 0 40.30 34.0 20.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 9.00 10.50 13.00 17.00 21.00 23.50 25.50
Rated Output (KW) 0.55 4.30 8.20 12.10 16.20 18.70 20.40
Efficiency (%) 86.5 91.0 91.7 91.7 91.7 90.2
Power Factor (%) 7.5 41.0 62.5 72.5 77.5 79.0 80.0
Speed (RPM) 1,200 1,195 1,192 1,188 1,185 1,180 1,175
Temp. Rise @ FL 48.0 77.5
Torque (ft-lbs) 0.00 21.90 44.00 66.30 88.80 102.40 111.50
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