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/Products/Electric Motors/Single Phase/Marathon/General Purpose/D312 Marathon 3/4HP Electric Motor, 3450RPM
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Product ID: 056C34F5302

D312 Marathon 3/4HP Electric Motor, 3450RPM

MFG: Marathon Electric (Regal Beloit Corp)
MFG Part Number: D312

Selected accessories will also be added to cart
$459.97 / Each
Quantity:
TEFC, 56C Frame, 115/208-230VAC 60Hz Single Phase, 056C34F5302, Rigid Base, Rolled Steel, 5/8" Keyed Shaft

Features

  • Double sealed ball bearings, mechanically locked on shaft end
  • Heavy gauge steel constructions
  • Bolt-on, removable rigid base
  • Suitable for horizontal or vertical mounting
  • Capacitor start design for high starting torque
  • Will accept brake kits, see Accessory section
  • Will accept drip cover kits, see Accessories section

General Specifications

UPC: 722856009401 Weight: 28.00 LB
Packaged Length: 16.12 IN Packaged Width: 10.25 IN
Packaged Height: 9.12 IN

Nameplate Specifications

Output HP: 0.75 Hp Output KW: 0.56 kW
Frequency: 60 Hz Voltage: 115/208-230 V
Current: 10.6/5.3-5.3 A Speed: 3450 rpm
Service Factor: 1.15 Phase: 1
Efficiency: 66 % Power Factor: 71.9
Duty: Continous Insulation Class: B
Design Code: N KVA Code: M
Frame: 56C Enclosure: Totally Enclosed Fan Cooled
Thermal Protection: No Ambient Temperature: 40 °C
Drive End Bearing Size: 6203 Opp Drive End Bearing Size: 6203
UL: Recognized CSA: Y
CE: N IP Code: 43

Technical Specifications

Electrical Type: Capacitor Start Induction Run Starting Method: Across The Line
Poles: 2 Rotation: Selective Counterclockwise
Resistance Main: 0 Ohms Mounting: Rigid Base
Motor Orientation: Horizontal Drive End Bearing: Ball
Opp Drive End Bearing: Ball Frame Material: Rolled Steel
Shaft Type: T Overall Length: 12.31 in
Shaft Diameter: 0.625 in Shaft Extension: 1.88 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)
Locked-Rotor 34.70 655.0 59.60 331.0 0 7.50 0.0 0.75
Full Load 5.30 100.0 18.00 100.0 3,500 0.85 71.9 0.75
Break-Down 17.00 321.0 54.10 301.0 3,029 3.40 0.0 0.75
Pull-Up 18.40 347.0 48.60 270.0 2,814 3.50 0.0 0.75

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 % 150 % 175 % 200 %
Current (Amps) 3.65 3.80 4.15 4.65 5.30 5.80 6.00 6.80 7.80 9.10
Rated Output (KW) 0.22 0.37 0.52 0.68 0.85 0.97 1.05 1.26 1.50 1.80
Efficiency (%) 0.0 40.1 55.5 62.8 66.0 67.4 67.8 67.7 66.0 63.0
Power Factor (%) 25.0 40.5 53.5 62.8 71.9 74.9 77.1 80.8 84.0 86.0
Speed (RPM) 3,600 3,565 3,547 3,525 3,500 3,489 3,478 3,449 3,410 3,355
Temp. Rise @ FL 0.0 0.0 0.0 0.0 65.0 80.0 85.0 0.0 0.0 0.0
Torque (ft-lbs) 0.00 4.47 8.88 13.40 18.00 20.80 22.70 27.40 32.30 37.60