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Home > Electric Motors > Discontinued Electric Motors > MARATHON Discontinued AC Motors > 1.5HP MARATHON 1800RPM 145JM TEFC 230/460V 3PH MOTOR U307

1.5HP MARATHON 1800RPM 145JM TEFC 230/460V 3PH MOTOR U307

Catalog Number: U307
Model Number: 145TTFR4045
Description: 1.5HP,1800RPM,145JM,TEFC,230/460V,3PH,60/50HZ
Ship Weight:  46 lbs.

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


  • 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
  • Footnote: 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 ONLY KVA Code M
Drive End Bearing BALL IP Code 43
Opposite End Bearing BALL    
Drive End Bearing Size 6206    
Opposite End Bearing Size 6203    
Weight 46 LB lbs    
UL Recognized Construction
Thermal Protection
1.5HP MARATHON 1800RPM 145JM TEFC 230/460V 3PH MOTOR U307
Click Image to Enlarge
Image for quick reference only
Manufacturer Part Number: U307
Stock # U307

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