Marathon 100 HP Severe Duty Motor, 3 phase, 1800 RPM, 230/460 V, 405T Frame, TEFC - U879A

Catalog #:U879A
Part #:405TTFS16834
  • Blue Chip® quality, 100% cast iron construction for rigidity and reduced vibration
  • Internal and external epoxy paint
  • Class F insulation
  • Rated 60/50 hertz, 190/380 or 380 volt at next lower horsepower
  • Extended grease tubes, regreasable in service
  • T-drains provided for effective drainage (Installed in both endshields
  • Suitable for shaft down mounting
  • Shaft Slinger
  • Forsheda seals on both ends
  • Actual test and vibration data supplied with each motor
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Weight:0 LB
List Price: $20,608.00

General Specifications

UPC: 722856018915 Weight: 0 LB
Packaged Length: 44.88 IN Packaged Width: 39.25 IN
Packaged Height: 28.89 IN

Nameplate Specifications

Output HP: 100 Hp Output KW: 75.0 kW
Frequency: 60/50 Hz Voltage: 230/460 V
Current: 226.0/113.0 A Speed: 1780 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 95.4 % Power Factor: 87
Duty: Continuous Insulation Class: F
Design Code: B KVA Code: F
Frame: 405T Enclosure: Totally Enclosed Fan Cooled
Thermal Protection: No Ambient Temperature: 40 °C
Drive End Bearing Size: 6316 Opp Drive End Bearing Size: 6313
UL: Recognized CSA: Y
CE: Y IP Code: 55

Technical Specifications

Electrical Type: Squirrel Cage Induction Run Starting Method: Across The Line
Poles: 4 Rotation: Reversible
Resistance Main: .054 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: 37.14 in
Frame Length: 16.75 in Shaft Diameter: 2.875 in
Shaft Extension: 7.5 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 610.00 540.0 400.00 136.0 900 100.00
1/3 640.00 566.0 375.00 127.0 600 100.00
Locked-Rotor 675.00 597.0 445.00 151.0 0 28.0 100.00
2/3 575.00 509.0 465.00 158.0 1,200 100.00
Full Load 113.00 100.0 295.00 100.0 1,780 100.00
Break-Down 370.00 327.0 715.00 242.0 1,675 67.5 100.00
No Load 28.00 25.0 0.00 0.0 1,800 100.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 28.00 39.00 60.00 84.50 113.00 130.00 142.00
Rated Output (KW) 1.20 20.00 39.00 58.50 78.50 91.00 98.50
Efficiency (%) 0.0 94.5 95.8 95.8 95.4 95.0 94.5
Power Factor (%) 4.5 64.0 81.5 86.0 87.0 87.5 87.5
Speed (RPM) 1,800 1,795 1,790 1,785 1,780 1,775 1,770
Temp. Rise @ FL 0.0 0.0 0.0 0.0 75.0 105.0 0.0
Torque (ft-lbs) 0.00 73.00 147.00 221.00 295.00 341.00 370.00
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