Marathon 50 HP General Purpose Motor, 3 phase, 1800 RPM, 575 V, 326T Frame, TEFC - E312

Catalog #:E312
Part #:326TTFS6030
  • Meets or exceeds NEMA Premium® efficiency. Model is in compliance with EISA2007
  • C-Face Footed models are rated 60/50 Hz, same HP
  • 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
  • Motor will accept a C-face kit
  • Shaft slinger, Class F insulation
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Weight:640.00 LB
List Price: $6,349.00

General Specifications

UPC: 722856017895 Weight: 640.00 LB
Packaged Length: 37.88 IN Packaged Width: 31.88 IN
Packaged Height: 24.39 IN

Nameplate Specifications

Output HP: 50 Hp Output KW: 37.0 kW
Frequency: 60 Hz Voltage: 575 V
Current: 48.0 A Speed: 1775 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 94.5 % Power Factor: 82
Duty: Continuous Insulation Class: F
Design Code: B KVA Code: F
Frame: 326T Enclosure: Totally Enclosed Fan Cooled
Thermal Protection: No Ambient Temperature: 40 °C
Drive End Bearing Size: 6312 Opp Drive End Bearing Size: 6311
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: .112 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: 31.88 in
Frame Length: 14.50 in Shaft Diameter: 2.125 in
Shaft Extension: 5.5 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 300.00 500.0 230.00 155.0 900 50.00
No Load 24.00 40.0 0.00 0.0 1,800 50.00
Full Load 60.00 100.0 148.00 100.0 1,775 50.00
2/3 250.00 417.0 275.00 186.0 1,200 50.00
Locked-Rotor 335.00 558.0 250.00 169.0 0 33.0 50.00
1/3 325.00 542.0 225.00 152.0 600 50.00
Break-Down 190.00 317.0 340.00 230.0 1,675 64.0 50.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 19.20 22.00 28.80 37.60 48.00 54.80 60.00
Rated Output (KW) 0.70 10.10 19.80 29.50 39.50 45.50 49.80
Efficiency (%) 0.0 91.7 94.5 94.5 94.5 94.1 93.6
Power Factor (%) 4.0 51.0 71.0 79.0 82.0 82.5 83.0
Speed (RPM) 1,800 1,795 1,788 1,782 1,775 1,772 1,770
Temp. Rise @ FL 0.0 0.0 0.0 0.0 75.0 105.0 0.0
Torque (ft-lbs) 0.00 36.60 73.50 111.00 148.00 170.00 185.00
Catalog #:GT1137A
Part #:326TTFCD6030
List Price: $5,858.00
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