Marathon – XRI® – Severe Duty®

Marathon – XRI® – Severe Duty®

Our Precision Balanced 3 Phase Electric Motors XRI® Severe Duty  Line is designed to be used on severe duty environments where long life and ultra-high efficiency are desired.  Ranges from 1 HP – 500 HP, 2, 4 & 6 poles, 230/460 V (up to 30 HP only), 9 leads, 460 V, 575 V, 3 leads – for entire range.  and Bearing Current protection ( BCP) and Max guard Insulation, as noted.

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Our 3 Phase Electric Motors XRI® Line are designed to be used on any of these applications: chemical plants, paper mills, refineries, mines, food processing, foundries, and other severe duty environments where long life and ultra-high efficiency are desired.

Guaranteed efficiencies offer an extra return on your Investment (ROI) when using these premium efficiency motors on high cycle or long run applications.

The patented MAX GUARD® insulation system delivers long, dependable motor life under the adverse thermal and dielectric stresses imposed by the high switching frequencies of PWM drives.


  • Broad product offering that is designed for “Mission Critical” applications in air moving, pumping, crane and quarry industries
  • Wide voltage/frequency range meets global requirements
  • IE3 efficiencies increase energy savings and reduce operating costs
  • “Performance Matched” to all leading brands of drives, providing years of trouble-free operation
  • 100% cast iron construction, internal and external epoxy coatings


  • Blue Chip Series® quality, 100% cast iron construction for rigidity and reduced vibration
  • Meets or exceeds NEMA Premium®* efficiencies
  • Meets IEEE45 USCG Marine Duty, IP55 construction
  • NEMA Premium models are in compliance with EISA 2007
  • UL* recognized (through 449T) and CSA certified and CE* mark
  • Bearing Current Protection (BCP) on selected items
  • Internal and external epoxy paint
  • MAX GUARD® motor Class H insulation system
  • Inverter duty rated on the nameplate
  • Bearing caps (182T and larger)
  • Precision balanced to .08”/sec
  • Extended grease tubes, regreasable in service
  • Bronze sintered drain and breather
  • Meets Ford®* EM1 automotive duty specification
  • Hazardous Duty motor Division 2 CSA* certification nameplate
  • Division 2/ Zone 2 Class I (gases), Groups A, B, C, D
  • Meets temperature code T2B
  • Actual test and vibration data supplied with each motor
  • Ball bearings or roller bearings available
  • Three year warranty


Địa chỉ: 146/18 Nguyen Huu Tho, Phưoc Kien, Nha Be, HCMc, VN
Điện thoại: (+84)-8 3781 5635/36/37
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