Marathon 20 HP Permanent Magnet (PMAC) Motor, 3 phase, 1800 RPM, 460 V, 256TC Frame, TEFC - SY011

Catalog #:SY011
Part #:256TPFSA10087
  • Ultra Efficient™ Premium-Plus exceeds NEMA Premium® (IE4)
  • Class H MAX GUARD® insulation system
  • Cast iron construction for rigidity and reduced vibration
  • Normally closed thermostats (one per phase, Class F)
  • High power density, low weight design, Optional terminal block shown
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Weight:386 LB
List Price: $5,475.00

General Specifications

UPC: 722856025791 Weight: 386 LB
Packaged Length: 30.75 IN Packaged Width: 21.75 IN
Packaged Height: 18 IN

Nameplate Specifications

Output HP: 20 Hp Output KW: 14.9 kW
Frequency: 120 Hz Voltage: 460 V
Current: 24.0 A Speed: 1800 rpm
Service Factor: 1 Phase: 3
Efficiency: 94.5 % Power Factor: 80
Duty: Continuous Insulation Class: H
Design Code: No Design Code KVA Code: NO KVA CODE
Frame: 256TC Enclosure: Totally Enclosed Fan Cooled
Thermal Protection: No Ambient Temperature: 40 °C
Drive End Bearing Size: 6309 Opp Drive End Bearing Size: 6210
UL: Recognized CSA: Y
CE: Y IP Code: 54

Technical Specifications

Electrical Type: AC Permament Magnet Starting Method: Inverter Only
Poles: 8 Rotation: Reversible
Resistance Main: 0 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: 25.68 in
Frame Length: 12.25 in Shaft Diameter: 1 5 in
Shaft Extension: 3.75 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)
0 2,250 20.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 % 150 % 200 %
Current (Amps) 2.00 6.20 11.80 17.50 24.00 27.80 30.50 40.50 0.00
Rated Output (KW) 0.55 4.10 7.95 11.80 15.80 18.20 19.80 24.10 0.00
Efficiency (%) 0.0 91.5 94.0 94.6 94.5 94.1 94.0 93.0 0.0
Power Factor (%) 0.0 79.5 80.0 80.5 80.0 79.0 78.0 74.0 0.0
Speed (RPM) 1,800 1,800 1,800 1,800 1,800 1,800 1,800 1,800 0
Temp. Rise @ FL 0.0 0.0 0.0 0.0 50.0 0.0 0.0 0.0 0.0
Torque (ft-lbs) 0.00 14.60 29.20 43.80 58.40 67.20 73.00 87.60 0.00
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