Marathon 400 HP General Purpose Motor, 3 phase, 1800 RPM, 460 V, 447T Frame, ODP - U794

Catalog #:U794
Part #:447TTDN16048
  • Meets or exceeds NEMA Premium® efficiency. Model is in compliance with EISA2007
  • Motor will accept a C-face kit
  • 12 Leads for WYE-DELTA, part winding on low voltage, or across-the-line starting
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Weight:2,283.00 LB
List Price: $36,944.00

General Specifications

UPC: 722856132154 Weight: 2,283.00 LB
Packaged Length: 56 IN Packaged Width: 46 IN
Packaged Height: 30.89 IN

Nameplate Specifications

Output HP: 400 Hp Output KW: 300.0 kW
Frequency: 60 Hz Voltage: 460 V
Current: 460.0 A Speed: 1785 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 95.4 % Power Factor: 85
Duty: Continuous Insulation Class: F
Design Code: B KVA Code: G
Frame: 447T Enclosure: Drip Proof
Thermal Protection: No Ambient Temperature: 40 °C
Drive End Bearing Size: 6318 Opp Drive End Bearing Size: 6314
UL: Recognized CSA: Y
CE: Y IP Code: 12

Technical Specifications

Electrical Type: Squirrel Cage Induction Run Starting Method: Part Wdg Start & Wye Start Delta Run
Poles: 4 Rotation: Reversible
Resistance Main: .0095 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: 43.25 in
Frame Length: 24.38 in Shaft Diameter: 3.375 in
Shaft Extension: 8.75 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)
1/3 2,850.00 620.0 2,000.00 170.0 600 400.00
Locked-Rotor 2,900.00 630.0 2,200.00 187.0 0 30.0 400.00
No Load 152.00 33.0 0.00 0.0 1,800 400.00
Break-Down 1,600.00 348.0 2,950.00 251.0 1,710 64.0 400.00
Pull-Up 2,750.00 598.0 2,050.00 174.0 900 400.00
Full Load 460.00 100.0 1,177.00 100.0 1,785 400.00
2/3 2,500.00 543.0 2,250.00 191.0 1,200 400.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 152.00 185.00 260.00 355.00 460.00 525.00 570.00
Rated Output (KW) 5.00 79.50 157.00 234.00 312.00 360.00 393.00
Efficiency (%) 0.0 93.6 95.0 95.4 95.4 95.4 95.0
Power Factor (%) 3.5 53.5 75.0 82.5 85.0 86.0 86.5
Speed (RPM) 1,800 1,795 1,792 1,788 1,785 1,782 1,780
Temp. Rise @ FL 0.0 0.0 0.0 0.0 70.0 90.0 0.0
Torque (ft-lbs) 0.00 292.00 585.00 880.00 1,177.00 1,355.00 1,475.00
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