• Three-phase, II & IV pole, 60Hz
• Voltage: 208-230/460, 460 or 575 V
• HP type: from frames 143HP up to 445HP
• HPH type: frames 284/6HPH and 404/5HPH
• Squirrel cage rotor / Aluminum die cast
• Totally Enclosed Fan Cooled - TEFC (IP55)
• V-ring slingers on both endshields
• Cast iron frame
• Ball bearings
• Class "F" insulation for all frames
• Service factor for High Efficiency:
  - 1.25 up to 100HP
  - 1.15 from 125HP and up
  Service Factor for Standard Efficiency: 1.15
• Temperature rise: Class "B" (80ºC)
• Continuous Duty (S1)
• 104ºF (40ºC) ambient temperature
• Altitude: 3300 ft (1000 m)
• 1045 carbon steel shaft
• Usual mounting: V1 - footless
• Stainless steel nameplate
• Paint: Enamel alkyd resin base
• Color: RAL 7022 - Dark Gray (Standard Efficiency)
  Color: RAL 5007 - Blue (High Efficiency)
• NPT threaded terminal box
• Automatic drain plugs
• Regreasable bearings system (frames 254HP and up)
• Thermistors from frames 324HP and up
• Drip cover (canopy)

Motors are tested according to IEEE 112 std. - method "B" or C390 CSA

High Efficiency motors are suitable for Inverter Duty.