Marathon 2 HP General Purpose Pump Motor, 3 phase, 1800 RPM, 230/460 V, 145TZ Frame, TEFC - U2052A

Catalog #:U2052A
Part #:145TTFR16357
  • Class F insulation
  • 50Hz Voltages at next lower HP
  • Rolled Steel and Cast Iron
  • 3600 & 1800 RPM ( 2 and 4 pole)
  • NEMA Design B
  • 10:1 Constant Torque
  • 1.15 Service Factor on sinewave, 1.0 Service Factor on IGBT power
  • 254TYZ and larger frames IP55 Standard with (IP-56 as a factory modification)
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Weight:45.00 LB

General Specifications

UPC: 722856054470 Weight: 45.00 LB
Packaged Length: 14.63 IN Packaged Width: 11.25 IN
Packaged Height: 10.65 IN

Nameplate Specifications

Output HP: 2 Hp Output KW: 1.5 kW
Frequency: 60 Hz Voltage: 230/460 V
Current: 5.8/2.9 A Speed: 1745 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 86.5 % Power Factor: 75.6
Duty: Continous Insulation Class: F
Design Code: B KVA Code: L
Frame: 145TZ Enclosure: Totally Enclosed Fan Cooled
Thermal Protection: No Ambient Temperature: 40 °C
Drive End Bearing Size: 6205 Opp Drive End Bearing Size: 6203
UL: Recognized CSA: Y
CE: Y IP Code: 43

Technical Specifications

Electrical Type: Squirrel Cage Inverter Rated Starting Method: Line Or Inverter
Poles: 4 Rotation: Reversible
Resistance Main: 6 Ohms Mounting: Rigid base
Motor Orientation: Horizontal Drive End Bearing: Ball
Opp Drive End Bearing: Ball Frame Material: Rolled Steel
Shaft Type: Single Special Extension Overall Length: 11.67 in
Shaft Diameter: 0.875 in Shaft Extension: 2.25 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)
Full Load 2.00 100.0 6.00 100.0 1,757 1.70 72.1 2.00
Pull-Up 25.37 1,268.0 24.60 410.0 120 14.10 0.0 2.00
Locked-Rotor 26.58 1,329.0 24.60 410.0 0 14.36 0.0 2.00
Break-Down 19.17 958.0 28.80 480.0 1,100 12.00 0.0 2.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 % 150 %
Current (Amps) 1.70 1.90 2.20 2.60 2.90 3.20 3.50 4.10
Rated Output (KW) 1.00 0.50 0.95 1.35 1.75 2.00 2.15 2.60
Efficiency (%) 0.0 74.5 83.5 85.5 86.5 86.0 85.5 84.0
Power Factor (%) 7.0 33.5 52.0 64.0 75.6 76.5 77.5 80.5
Speed (RPM) 1,800 1,785 1,775 1,762 1,745 1,740 1,730 1,718
Temp. Rise @ FL 0.0 0.0 0.0 0.0 55.0 75.0 85.0 0.0
Torque (ft-lbs) 0.00 1.50 3.00 4.50 6.00 6.90 7.50 9.00
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