Marathon 25 HP General Purpose Motor, 3 phase, 1800 RPM, 208-230/460 V, 284TS Frame, TEFC - E999A

Catalog #:E999A
Part #:284TSTFC6036
  • 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
  • Motors accept C-face kits, as noted
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Weight:425.00 LB

General Specifications

UPC: 722856017536 Weight: 425.00 LB
Packaged Length: 27 IN Packaged Width: 20.5 IN
Packaged Height: 18 IN

Nameplate Specifications

Output HP: 25 Hp Output KW: 18.7 kW
Frequency: 60 Hz Voltage: 208-230/460 V
Current: 66.0-58.5/29.3 A Speed: 1783 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 93 % Power Factor: 78
Duty: Continous Insulation Class: F
Design Code: A KVA Code: H
Frame: 284TS Enclosure: Totally Enclosed Fan Cooled
Thermal Protection: No Ambient Temperature: 40 °C
Drive End Bearing Size: 6311 Opp Drive End Bearing Size: 6309
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: .058 Ohms Mounting: Rigid base
Motor Orientation: Horizontal Drive End Bearing: Ball
Opp Drive End Bearing: Ball Frame Material: Cast Iron
Shaft Type: TS Overall Length: 24.87 in
Shaft Diameter: 1.625 in Shaft Extension: 3.25 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)
Pull-Up 180.00 614.0 130.00 177.0 900 25.00
Locked-Rotor 200.00 683.0 145.00 197.0 0 25.00
Break-Down 130.00 444.0 225.00 306.0 1,700 25.00
Full Load 29.30 101.0 73.50 100.0 1,783 25.00
No Load 12.00 41.0 0.00 0.0 1,800 25.00
2/3 170.00 580.0 150.00 204.0 1,200 25.00
1/3 190.00 648.0 125.00 170.0 600 25.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 12.00 14.50 18.50 24.00 29.50 34.00 36.00
Rated Output (KW) 0.60 5.40 10.00 15.00 20.00 23.00 25.00
Efficiency (%) 0.0 88.5 93.6 94.1 93.6 93.6 93.6
Power Factor (%) 5.5 46.5 69.0 80.0 84.4 86.5 87.5
Speed (RPM) 1,800 1,792 1,783 1,775 1,770 1,767 1,762
Temp. Rise @ FL 0.0 0.0 0.0 0.0 44.0 60.0 75.0
Torque (ft-lbs) 0.00 18.60 37.50 56.00 73.50 84.50 93.50
Catalog #:GT1057
Part #:284TSTFCD6026
List Price: $3,237.00
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