Specifications

• Additional Details
  Designed specifically for Inverter operation where up to 1000:1 constant torque speed range is required. Includes provisions for stub shaft for hollow shaft encoder, three thermostats, and all 440T frames include an ODE insulated bearing. Meets NEMA MG 1, Part 31. Continuous constant torque to zero speed.
• Amps @ Voltage
  277.0 A @ 460 V; 272.0 A @ 460 V
• UPC_NO
  781568465479
• Applications
  Conveyors, extruders, printing lines, converting, test stands, anywhere constant torque is required over a wide speed range.
• Base RPM
  1790 rpm / 2685 rpm
• Description Keyword
  250 hp
• Duty Condition Type
  Continuous Duty
• Enclosure Type
  TEFC (Totally Enclosed Fan Cooled)
• Frame Material
  Cast Iron
• Frame Size
  449T
• Frequency Rating
  60/90 Hz
• Full Load Efficiency
  95.80 %
• Harmonization Code
  8501.53.8040
• Instructional Video
  Click here
• Instructional Video 2
  Click here
• Insulation Class
  F
• Manufacturer Catalog
  Click here
• Manufacturer Product Page
  Click here
• Motor Category
  Inverter Duty Motor
• Motor Horsepower
  250 hp
• Motor Phase
  3 ph
• Motor Supply Voltage
  460 V
• Mounting Type
  Foot
• Overall Length C Dimension
  53.24 in
• Service Factor
  1.00
• Shaft Diameter
  3.3750 in
• Standards Met
  CCSA US
• Synchronous Rpm
  1800 rpm / 3000 rpm
• Volts @ Frequency
  460 V @ 60 Hz; 460 V @ 90 Hz
• Weight
  2650 lbs
• Wiring Diagram
  Click here
• Product Type
  Inverter Vector Duty Motors