Need Help? Call (302) 653-1844

Home > Electric Motors > Discontinued Electric Motors > MARATHON Discontinued AC Motors > 20HP MARATHON 1800RPM 256JM TEFC 230/460V 3PH MOTOR U354

20HP MARATHON 1800RPM 256JM TEFC 230/460V 3PH MOTOR U354

Catalog Number: U354
Model Number: 256TTFL4031
Description: 20HP,1800RPM,256JM,TEFC,230/460V,3PH,60/50HZ
Ship Weight:  321 lbs.

This Marathon Motor Can Only Ship Ground Freight
For expedited needs please contact our sales team

APPLICATIONS: Close-coupled pump where the pump impeller is mounted directly on the
motor shaft in environments that are relatively clean and dry.

  • Aluminum Frame Construction
  • NEMA JM pump shaft dimensions
  • 1.15 Service Factor
  • Ball bearings, mechanically locked on shaft end
  • Continuous duty
  • UL Recognized, CSA Certified
  • Rated 60/50 hertz, 190/380 or 380 volt at next lower horsepower
  • Footnotes: AL, 68

This product must be installed and serviced by a qualified technician, electrician, or electrical maintenance person familiar with its operation and the hazards involved. Proper installation, which includes electrical connections, fusing or other current protection, and grounding, can reduce the chance of electrical shocks, and fires, in this product or products used with this product, such as electric motors, switches, coils, solenoids, and relays. Do not use this product in an explosion-proof application.

Phase 3 Insulation Class F
Enclosure TEFC Ambient 40
Mounting C-Face Rigid NEMA Design B
Orientation HORIZONTAL Starting Type ACROSS THE LINE
Assembly F1 (F2 Modification Available) KVA Code G
Drive End Bearing BALL IP Code 43
Opposite End Bearing BALL    
Drive End Bearing Size 6309    
Opposite End Bearing Size 6207    
Weight 321 LB lbs    
UL Recognized Construction
Thermal Protection  


20HP MARATHON 1800RPM 256JM TEFC 230/460V 3PH MOTOR U354
Click Image to Enlarge
Image for quick reference only
Manufacturer Part Number: U354
Stock # U354

Product Reviews

There are currently no customer reviews for this product.

Be the first to write a review!
We value your opinion. Please take a moment and share what you like or don't like about a product.

Write a review now

Subscribe to Our Newsletter to Receive Updates