Marathon 1 HP Explosion Proof Motor, 3 phase, 1800 RPM, 230/460 V, 143T Frame, EPFC - U001A

Catalog #:U001A
Part #:143TTGN6526
  • Rolled steel fan guard
  • 10:1 Variable torque, see Inverter Duty column for constant torque
  • MAX GUARD® Class F insulation system, Internal and external epoxy paint
  • Blue Chip® quality, 100% cast iron construction for rigidity and reduced vibration
  • Suitable for use on VFD at 208 volt
  • 1.15 Service Factor on sinewave or 1.0 Service Factor on IGBT 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
  • Motor will not accept a C-face kit
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Weight:71.00 LB
List Price: $1,064.00

General Specifications

UPC: 722856023100 Weight: 71.00 LB
Packaged Length: 15.81 IN Packaged Width: 14.31 IN
Packaged Height: 9.38 IN

Nameplate Specifications

Output HP: 1 Hp Output KW: 0.75 kW
Frequency: 60 Hz Voltage: 230/460 V
Current: 3.3/1.7 A Speed: 1765 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 85.5 % Power Factor: 68
Duty: Continuous Insulation Class: F
Design Code: B KVA Code: P
Frame: 143T Enclosure: Explosion Proof Fan cooled
Thermal Protection: Thermostats (N/C) Ambient Temperature: 40 °C
Drive End Bearing Size: 6205 Opp Drive End Bearing Size: 6203
UL: UL Listed And CSA Certified CSA: Y
CE: N IP Code: 54
Hazardous Location: EXP PROOF CL I GR D CL II GR F&G T3B

Technical Specifications

Electrical Type: Squirrel Cage Inverter Rated Starting Method: Line Or Inverter
Poles: 4 Rotation: Reversible
Resistance Main: 11.8 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: 14.73 in
Frame Length: 7.50 in Shaft Diameter: 0.875 in
Shaft Extension: 2.31 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)
Pull-Up 16.00 970.0 12.50 417.0 115 0.00 0.0 1.00
Break-Down 11.00 667.0 16.80 560.0 1,270 0.00 83.0 1.00
2/3 13.60 824.0 14.40 480.0 1,200 0.00 0.0 1.00
Full Load 1.65 100.0 3.00 100.0 1,765 0.00 0.0 1.00
No Load 1.15 70.0 0.00 0.0 1,800 0.00 0.0 1.00
1/3 16.15 979.0 11.65 388.0 600 0.00 0.0 1.00
Locked-Rotor 17.00 1,030.0 13.70 457.0 0 0.00 69.5 1.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 1.15 1.20 1.30 1.45 1.65 1.75 1.85
Rated Output (KW) 0.07 0.26 0.46 0.66 0.87 1.00 1.09
Efficiency (%) 0.0 72.0 81.5 84.0 85.5 85.5 85.5
Power Factor (%) 7.5 30.0 46.5 59.5 68.0 72.0 74.0
Speed (RPM) 1,800 1,790 1,785 1,775 1,765 1,760 1,755
Temp. Rise @ FL 0.0 0.0 0.0 0.0 30.0 40.0 0.0
Torque (ft-lbs) 0.00 0.75 1.50 2.25 3.00 3.45 3.75
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