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Home > Electric Motors > Discontinued Electric Motors > MARATHON Discontinued AC Motors > 250HP MARATHON 1200RPM 447/9T 460V TEFC 3PH MOTOR L457

250HP MARATHON 1200RPM 447/9T 460V TEFC 3PH MOTOR L457

Catalog Number:  L457
Model Number:  449TTFS8077
Description:  250HP,1200RPM,447/9T,460V,TEFC,3PH,60/50HZ
Ship Weight:  3092 lbs.

This Marathon motor is a Build To Order product and factory lead times are approximately 3-8 weeks after receipt of order. For exact lead times or other interchangeable products please contact our sales team for particulars.

APPLICATIONS: Blue Chip General Purpose use on pumps, fans, blowers, compressors, conveyors, and other industrial machinery installed in damp, dusty, or dirty environments. Additionally, cast iron frame motors may be suitable for the process industries.

FEATURES:

  • Rigid base
  • Cast iron frame construction
  • Totally Enclosed, fan cooled
  • Rated 60/50 hertz, 190/380 or 380 volt at next lower horsepower
  • 1.15 Service Factor
  • Class H Insulation
  • Accepts C-Face kit A623
  • Shaft slinger, regreasable bearings (182T and larger), lead lugs (364T and larger), and bearing caps on 444T and larger
  • Ball Bearings
  • 12 Leads for WYE-DELTA, Part Winding on low voltage, or across-the-line starting
  • UL Recognized and CSA Certified
  • Efficiency levels meet EISA requirements
  • Two year warranty
  • Footnotes: H, RB, YD, 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 H
Frame 447/449T Duty CONTINUOUS
Enclosure TEFC Ambient 40
Mounting Rigid NEMA Design B
Orientation HORIZONTAL Starting Type PWS & YDRUN
Assembly F1 (F2 Modification Available) KVA Code G
Drive End Bearing BALL IP Code 43
Opposite End Bearing BALL    
Drive End Bearing Size 6319    
Opposite End Bearing Size 6318    
Weight 3092 LB lbs    
CE Y CSA Y
UL Recognized Construction
Thermal Protection
250HP MARATHON 1200RPM 447/9T 460V TEFC 3PH MOTOR L457
Click Image to Enlarge
Image for quick reference only
Manufacturer Part Number: L457
Stock # L457

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