MAX-E2/841™ NEMA Premium Efficiency - Inverter, Severe Duty, TEFC

Totally Enclosed Fan Cooled, [HB], [HB_C], [HBV_C]

HP1 HP through 500 HP Speed3600, 1800, 1200, 900 RPM Voltage460V Frequency60 Hz.


  • Meets GM 7E-TA Specifications
  • Three Phase, 60 Hz, 1.15 Service Factor (Continuous); 50 Hz, 1.0 Service Factor (Continuous)
  • CSA Certified for Class I, Div. 2, Groups B, C, D - Temp Code T3 Minimum
  • CSA Certified for Class II, Div. 2, Groups F & G - Temp Code T3 Minimum (Frame 444T and Above)
  • Meets or Exceeds IEEE 841 Standards
  • Meets IEEE 45 Marine Duty and ABS Design Assessment up to 500 HP(2,4,6 pole only)
  • Extended Warranty - 60 Months from Date of Manufacture
  • Class F Insulation
  • Class B Temperature Rise
  • NEMA Design B Torques as a Minimum; Various Ratings also Meet Design C
  • Cast Iron Frame, End Brackets & Fan Cover and Main Conduit Box
  • Grounding Terminal Inside Main Conduit Box with additional Foot Grounding Provision
  • Oversized Main Conduit Box Rotatable in 90 Degree Increments - F1 Mounted
  • Designed for 50˚C Ambient Temperature
  • Designed for 3300 ft. Elevation
  • Bi-Directional Rotation; Except 2 Pole "Hybrid" and F# 5000 and Larger Ratings are Counter-Clockwise facing the DE
  • 1045 Carbon Steel Shaft
  • Aluminum Die Cast Squirrel Cage Rotor Construction for F# 140T - 449T
    Copper/Copper Alloy Rotor Construction for F# 5000 and Larger
  • Paint System: 2 Part Epoxy
  • Paint Color: Blue - Munsell 5PB 3/8
  • High Quality Ball (or Roller) Bearings Regreasable with Mobil Polyrex™ EM
  • Automatic Grease Discharge Fittings
  • VBXX INPRO™ Seals Installed on Both Ends
  • Stainless Steel Nameplate and Hardware
  • Stainless Steel Automatic Breather Drain
  • New Dual Column Design Nameplate as Standard (60/50 Hz)
  • Suitable for Inverter Use per NEMA MG-, Part 31
  • Inverter Duty Speed Range: 20:1 Variable Torque, 10:1 Constant Torque (350 HP and Larger are 3:1 Constant Torque)
  • Motors are U.L. Recognized, CSA Approved
  • 3 Leads Only
  • Dual Drilled Feet Available on Most Ratings - Longer Frames (i.e. 145T Drilled also for 143T)
  • Vibration Not to Exceed 0.08 Inches Per Second
  • Noise Level Not to Exceed 85 dB(A) at 1 Meter Unloaded