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256TTFC6031 – Marathon 20 HP General Purpose Motor, 3 phase, 1800 RPM, 575 V, 256T Frame, TEFC – U653A

256TTFC6031 – Marathon 20 HP General Purpose Motor, 3 phase, 1800 RPM, 575 V, 256T Frame, TEFC – U653A

256TTFC6031 Marathon Three Phase TEFC Motors

Please advise CFM, static pressure, voltage, phase, and/or horsepower on specifications, drawings, or existing equipment for an accurate quote.

  • 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

Marathon Motors
Regal Beloit

Original price was: $3,695.00.Current price is: $2,633.80.

Description

256TTFC6031 – Marathon 20 HP General Purpose Motor, 3 phase, 1800 RPM, 575 V, 256T Frame, TEFC – U653A

256TTFC6031 Marathon Three Phase TEFC Motors

Please advise CFM, static pressure, voltage, phase, and/or horsepower on specifications, drawings, or existing equipment for an accurate quote.

General Specifications

UPC: 722856017659 Weight: 361 LB
Packaged Length: 27 IN Packaged Width: 20.5 IN
Packaged Height: 18 IN

Nameplate Specifications

Output HP: 20 Hp Output KW: 14.9 kW
Frequency: 60 Hz Voltage: 575 V
Current: 20.0 A Speed: 1770 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 93 % Power Factor: 82
Duty: Continuous Insulation Class: F
Design Code: B KVA Code: G
Frame: 256T 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 Induction Run Starting Method: Across The Line
Poles: 4 Rotation: Reversible
Resistance Main: .322 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: 24.92 in
Shaft Diameter: 1.625 in Shaft Extension: 4.25 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)
Break-Down 98.00 392.0 195.00 328.0 1,650 74.0 20.00
Full Load 25.00 100.0 59.50 100.0 1,775 82.0 20.00
No Load 9.40 37.5 0.00 0.0 1,800 5.5 20.00
Pull-Up 135.00 95.00 176.0 900 20.00
1/3 140.00 95.00 176.0 600 20.00
2/3 125.00 115.00 192.0 1,200 20.00
Locked-Rotor 145.00 580.0 115.00 192.0 0 37.0 20.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 7.52 9.20 12.00 15.60 19.60 22.40 24.40
Rated Output (KW) 0.40 4.30 8.20 12.20 16.20 18.60 20.40
Efficiency (%) 0.0 88.5 92.4 93.0 93.0 92.4 91.7
Power Factor (%) 5.5 47.0 68.0 77.0 82.2 82.5 83.0
Speed (RPM) 1,800 1,795 1,782 1,778 1,775 1,768 1,765
Temp. Rise @ FL 0.0 0.0 0.0 0.0 43.0 60.0 0.0
Torque (ft-lbs) 0.00 15.00 30.00 45.00 59.50 70.00 75.00

Marathon Motors
Regal Beloit