W50 – High Voltage

W50 motors offer not only excellent performance, but comply with the strictest efficiency and safety criteria in the most severe applications. W50 provides low vibration levels, versatility and reduced maintenance.

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Standard Features

  • Rated output: 110 kW to 1250 kW
  • Number of poles: 2 to 8
  • Frame sizes: 315H/G to 450J/H
  • Frequency: 50 or 60 Hz
  • Voltage: 1,2 kV to 6,6 kV
  • Service factor: 1,00
  • Insulation class: F
  • Degree of protection: IP55
  • Mounting: B3
  • Cooling method: TEFC – Totally enclosed fan cooled (IC411)
  • Frame, endshields, fan cover and terminal box material: FC-200 cast iron
  • Shaft material: AISI 4140
  • Thermal protection:
    • Windings: Pt-100 3 wire, 2 per phase
    • Bearings: Pt-100 3 wire, 1 per bearing
  • Grease lubricated ball bearings
  • Bearing seal: Taconite labyrinth
  • Vibration Level: Grade A according IEC 60034-14
  • Lubrication: Mobil Polyrex EM Grease
  • Painting plan: C5 (I and M) – “High” Durability according ISO 12944
  • Color: RAL 5009 (Blue)
  • Dual Voltage Space Heaters
  • Automatic drain plug

Optional Features

  • Other mounting configurations: B35, V1, V5, V6, etc.
  • Degree of Protection: IP56, IP65, IP66
  • Cooling method: TEBC – Totally enclosed blower cooled (IC 416)
  • Surrounding muffler
  • Service factor: 1.15
  • Bearings:
    • Sleeve bearings
    • Insulated drive end bearing for inverter duty applications
    • Cylindrical roller bearing
    • Shaft grounding brush
    • Bearings designs for vertical mounting normal and high thrust application
  • Seal: INPRO/SEAL®
  • Vibration level: Grade B according IEC 60034-14
  • Bearing and winding thermal protection: thermistors or thermostats
  • Cable glands
  • Drip proof canopy for shaft down applications
  • Internal tropicalized painting
  • Encoder
  • Suitable for VFD applications
  • Main terminal box in welded steel
  • Additional terminal box: For “Y” connection with access to the neutral terminal
  • Non-contact / contact thermometer with gauge
  • Stainless steel fasteners


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Technical Manual
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