W21 – Cast Iron Frame – Super Premium Efficiency – IE4

Applications

  • Applications
  • Pumps
  • Fans
  • Crushers
  • Conveyors
  • Machine tools
  • Milling applications
  • Centrifugal machines
  • Presses
  • Elevators
  • Looms
  • Grinders
  • Woodworking
  • Cooling
  • Packaging equipment
  • Other severe duty applications

 

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Description

Standard features

  • Super Premium Efficiency
  • Output: 3 up to 315kW
  • Multi-voltage: 400/690//460V
  • Cooling: TEFC
  • Cast iron frames (132 up to 355)
  • Mounting: B3T
  • Degree of Protection: IP55
  • Terminal block
  • Squirrel cage rotor/ Aluminum die cast
  • V-Ring on both end-shields
  • Stainless steel nameplate AISI 316
  • Class “F” insulation
  • Continuous duty – S1
  • Ambient temperature: 40 °C , 1000 m.a.s.l
  • Re-greasing nipples from frame 225S/M and above
  • Metric thread cable entries in terminal box
  • Thermistors (1 per phase) fitted in frame 160M and above
  • Suitable for Inverter Duty applications*
  • Paint color: RAL 6002
    *For additional details about Inverter operation, please contact our technical support.

Optional Features

  • Other single voltages
  • Degree of Protection: IP56, IP65 or IP66
  • Other mounting configurations
  • Ventilation Motor, TEAO
  • Forced Ventilation, TEBC
  • Thermal protection:
  • Thermistors for frame 132S and below (Standard for frame 160 and above)
  • Thermostats
  • RTD-PT 100
  • Space heaters
  • Class “H” insulation
  • Roller bearings for frame 160M and above

 

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Technical Articles
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