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    • Home Products Brand Center Siemens Siemens 1LA8 Series Three-Phase Asynchronous Motor
    Siemens
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    • Siemens 1LA8 Series Three-Phase Asynchronous Motor

    • Model : 1LA8315-4PB40-Z

    • Electrical Data 
      Parameter Value Notes
      Frequency f 50 Hz
      Rated Voltage U D/Y 400 V
      Rated Power PN 250 kW
      Rated Current IN 434 A
      Rated Speed nN 1488 rpm
      Rated Torque MN 1605 Nm
      Breakdown/Rated Torque MK/MN 2.80
      Starting/Rated Current IA/IN 7.0
      Starting/Rated Torque MA/MN 1.8
      Efficiency η 95.5 %
      Power Factor cos φ 0.88
      Rotor Winding Material Al

      Rated Data

      Parameter Value
      Power P 250 kW
      Current IN 434 A
      Speed n 1488 rpm
      Torque MN 1605 Nm

      General Data

      Parameter Value
      Type of Construction IM B3
      Mode of Operation Converter without filter
      Degree of Protection IP55
      Method of Cooling IC411
      Thermal Class / Utilisation 155 (F)
      Service Factor 1.00
      Total Weight 1300 kg
      Frame Size 315
      Coating / Color Standard / RAL 7030
      Installation Altitude 1000 m
      Ambient Temperature 40 °C
      Standards/Specifications IEC, DIN, ISO, VDE, EN
      Type of Explosion Protection none

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    Details
    Detail Category Description
    Product Overview The Siemens 1LA8315-4PB40-Z is a robust and efficient three-phase asynchronous motor designed for heavy-duty industrial applications. It features high efficiency (up to 95.6%), a sturdy construction, and compatibility with converter operation (without filter). Its design ensures reliable performance in demanding environments.
    Key Features • High efficiency (95.5% at rated load)
    • Converter operation capability (without filter)
    • Insulated bearing at Non-Drive End (NDE) to prevent bearing currents
    • IP55 protection for dust and water resistance
    • PTC thermistor motor protection for alarm and shutdown functions
    • Standard paint finish (RAL 7030)
    Main Applications • Industrial pumps and fans
    • Compressors and conveyors
    • Heavy machinery and processing equipment
    • Applications requiring variable speed drive (VSD) operation
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