Marathon XRI TEFC motors:


General Purpose, Three phase Totally Enclosed motors


1HP to 450HP

NEMA Premium® Efficiency


  • Suitable for use on a VFD. Variable Torque and Constant Torque (as noted)
  • 1.15 Service Factor on sinewave, 1.0 Service Factor on IGBT power
  • F1 conduit box on Rigid Base, F3 on C-Face Footed (Rigid Base) motors
  • Bearing Current Protection (BCP), as noted
  • Shaft slinger
  • Class F insulation
  • 1.15 Service Factor
  • Ball bearings (except as noted)
  • C-Face Footed models are rated 60/50 Hz, same HP
  • Motors accept C-face kits, as noted
  • UL Recognized, CSA Certified and CE Mark
  • Three year warranty