Marathon 100 HP Definite Purpose AC Motor, 3 phase, 1200 RPM, 230/460 V, 444T Frame, EPFC - E580

Catalog #:E580
Part #:444TTGS6588
  • 10:1 Variable torque, see Inverter Duty column for constant torque
  • MAX GUARD® Class F insulation
  • Blue Chip® quality, 100% cast iron construction for rigidity and reduced vibration
  • Internal and external surfaces treated with epoxy paint
  • 1.15 Service Factor on sinewave or 1.0 Service Factor on IBGT power
  • Precision balanced to .08”/sec.
  • Extended grease tubes
  • Normally closed thermostats (must be connected to control circuit)
  • Meets temperature code T3B, Shaft slinger, Nameplated 60/50 Hz, 190/380 Volts, at next lower HP, as noted
  • Ball Bearings (except as noted),UL Listed File No. E12044,CSA Certified File No. LR47504
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Weight:1,813.00 LB

General Specifications

Weight: 1,813.00 LB Packaged Length: 56 IN
Packaged Width: 46 IN Packaged Height: 32 IN

Nameplate Specifications

Output HP: 100 Hp Output KW: 75 kW
Frequency: 60 Hz Voltage: 230/460 V
Current: 238/119 A Speed: 1190 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 94.5 % Power Factor: 83
Duty: CONTINUOUS Insulation Class: F
Design Code: B KVA Code: G
Frame: 444T Enclosure: EPFC
Thermal Protection: NOT Ambient Temperature: 40 °C
Drive End Bearing Size: 6318 Opp Drive End Bearing Size: 6316
UL: No CSA: N
CE: N IP Code: 54

Technical Specifications

Electrical Type: SQ CAGE INV RATED Starting Method: LINE OR INVERTER
Poles: 6 Rotation: REV
Resistance Main: 0.072 Ohms Mounting: RIGID
Motor Orientation: HORIZONTAL Drive End Bearing: BALL
Opp Drive End Bearing: BALL Frame Material: CAST IRON
Shaft Type: T Overall Length: 41.25 in
Frame Length: 18.5 in Shaft Diameter: 3.38 in
Shaft Extension: 8.75 in Assembly/Box Mounting: F1 ONLY

Speed Characteristics

Curvepoint Current (Amps) Current (%) Torque (ft-lbs) (%) Speed (RPM) Rated Output (KW) Power Factor (%) Rated Output (Hp)
1/3 700.00 588.0 700.00 159.0 400 100.00
Locked-Rotor 725.00 609.0 825.00 187.0 0 37.0 100.00
Break-Down 400.00 336.0 1,075.00 244.0 1,125 63.5 100.00
Pull-Up 650.00 546.0 750.00 170.0 600 100.00
Full Load 119.00 100.0 441.00 100.0 1,190 100.00
2/3 600.00 504.0 875.00 198.0 800 100.00
No Load 40.00 34.0 0.00 0.0 1,200 100.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 40.00 48.50 67.00 90.50 119.00 135.00 147.00
Rated Output (KW) 2.00 20.50 39.50 58.50 78.50 91.00 147.00
Efficiency (%) 0.0 93.0 94.1 94.5 94.5 94.5 94.1
Power Factor (%) 7.0 51.5 73.0 81.0 83.0 84.0 84.5
Speed (RPM) 1,200 1,198 1,195 1,192 1,190 1,185 1,182
Temp. Rise @ FL 0.0 0.0 0.0 0.0 70.0 90.0 0.0
Torque (ft-lbs) 0.00 109.00 219.00 330.00 441.00 510.00 553.00
Catalog #:E580A
Part #:444TTGN16580
List Price: $26,572.00
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