Marathon 15 HP Automotive Duty Motor, 3 phase, 3600 RPM, 460 V, 256U Frame, TEFC - P439

Catalog #:P439
Part #:256UTFNA4001
  • Cast iron construction
  • Oversized, fully gasketed, cast iron conduit box
  • Oversized ball bearings
  • NEMA Design B
  • Class F insulation
  • V-Ring shaft seals
File is not found. Please try again or contact customer service.
Sorry, at this time this product does not comply with the standards of the country you selected.
This product complies with the standards of the country you selected.
The account you are currently on does not have access to purchase this product. Please change to your {0} account to purchase.
The following item(s) have been moved to {0}: {1}
Quantities over {0} may require additional lead time. A Regal representative will contact you if this occurs.
You can only order in multiples of {0}. Please enter a valid quantity for this item.
Sorry, this item is no longer available.
Discontinued
Available warehouses not found.
Weight:460.00 LB

General Specifications

UPC: 722856060495 Weight: 460.00 LB
Packaged Length: 30.75 IN Packaged Width: 21.75 IN
Packaged Height: 18 IN

Nameplate Specifications

Output HP: 15 Hp Output KW: 11.2 kW
Frequency: 60 Hz Voltage: 460 V
Current: 17.5 A Speed: 3550 rpm
Service Factor: 1 Phase: 3
Efficiency: 91.7 % Power Factor: 85
Duty: Continuous Insulation Class: F
Design Code: B KVA Code: G
Frame: 256U Enclosure: Totally Enclosed Fan Cooled
Thermal Protection: No Ambient Temperature: 65 °C
Drive End Bearing Size: 6309 Opp Drive End Bearing Size: 6210
UL: Recognized CSA: Y
CE: Y IP Code: 43

Technical Specifications

Electrical Type: Squirrel Cage Induction Run Starting Method: Across The Line
Poles: 2 Rotation: Reversible
Resistance Main: .603 Ohms Mounting: Rigid Base
Motor Orientation: Horizontal Drive End Bearing: Ball
Opp Drive End Bearing: Ball Frame Material: Cast Iron
Shaft Type: U Overall Length: 25.02 in
Frame Length: 12.25 in Shaft Diameter: 1.375 in
Shaft Extension: 3.94 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)
No Load 6.00 34.0 0.00 0.0 3,600 15.00
Locked-Rotor 116.00 663.0 41.00 185.0 0 38.0 15.00
Full Load 17.50 100.0 22.20 100.0 3,550 15.00
2/3 97.00 554.0 43.00 194.0 2,400 15.00
1/3 108.00 617.0 35.00 158.0 1,200 15.00
Pull-Up 103.00 589.0 37.00 167.0 1,800 15.00
Break-Down 75.00 429.0 65.00 293.0 3,175 72.0 15.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 6.00 7.50 10.00 14.00 17.50 20.00 22.00
Rated Output (KW) 1.50 3.50 6.00 9.00 12.00 13.00 15.50
Efficiency (%) 0.0 85.5 90.2 91.7 91.7 91.7 91.0
Power Factor (%) 10.5 56.0 75.5 83.5 85.0 87.0 88.0
Speed (RPM) 3,600 3,585 3,570 3,560 3,550 3,540 3,525
Temp. Rise @ FL 0.0 30.0 25.0 0.0 50.0 70.0 85.0
Torque (ft-lbs) 0.00 5.50 11.00 16.50 22.20 25.00 28.00
This name is used, please enter another
{0} was created successfully.
{0} was deleted successfully.
Please select an account
Profile updated successfully.
Thank you for your registration request. We have submitted your information to your company's administrator for review and approval.
You have been logged out due to inactivity. Please log in again.