FeaturesAFHH■CSA Certified for Class I, Div. 2, Groups A, B, C, D - Temp Code T2D Minimum■CSA Certified for Class II, Div. 2, Groups F & G - Temp Code T3C Minimum■Class F Insulation. Class B Temperature Rise■NEMA Design B Torques as a Minimum■Cast Iron Frame, End Brackets, Pressed Steel Fan Cover and Plate Main Conduit Box■Main Conduit Box Rotatable in 90 Degree Increments - F1 Mounted, Field Convertible to F2 and F3■Bi-Directional Rotation; Except 2 Pole are Counter-Clockwise facing the DE■Aluminum Die Cast Squirrel Cage Rotor Construction or Copper/Copper Alloy Rotor Construction■High Quality Ball (or Roller) Bearings Regreasable with Mobil Polyrex™ EM■Automatic Grease Discharge Fittings■Labyrinth Type Metal Flinger on Both Ends■Cast Iron Inner and Outer Bearing Caps■Stainless Steel Nameplate■VB300 Vibration Sensor on Both End Brackets■Dual Column Design Nameplate as Standard (60/50 Hz)■Motors are CSA Approved■Insulated NDE Bearing, 120 V Space Heaters, and Winding RTDs (2/ phase) on 2-Pole Motors 400 HP and Larger■Inverter Duty Speed Range: 10:1 Variable Torque, 3:1 Constant Torque