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SIEMENS 250M - 81U16338

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      Product name: SIEMENS 250M
      Product No: 81U16338
      EAN number: 5712600257986
      Shaft diameter: 60 mm
      Length of shaft end: 140 mm
      Cooling: IC 411
      Range of ambient temperature: -20 .. 55 °C
      Flange size for motor: FF500
      Electrical data 
      Motor type: SIEMENS
      IE Efficiency class: IE4
      Rated power - P2: 55 kW
      Mains frequency: 50 Hz
      Rated voltage: 3 x 380-420D/660-725Y V
      Rated current: 99,0-90,0/57,0-52,0 A
      Maximum current consumption: 99,0-99,0/57,0-52,0 A
      Starting current: 750-750 %
      Cos phi - power factor: 0.88
      Rated speed: 2975 rpm
      Rated full-load torque: 176-176 Nm
      Locked-rotor torque: 250-250 %
      Breakdown torque: 320-320 %
      Moment of inertia: 0.56 kg m²
      Efficiency: IE4 95,3%
      Motor efficiency at full load: 95.3-95.3 %
      Motor efficiency at 3/4 load: 95.2-95.2 %
      Motor efficiency at 1/2 load: 94.5-94.5 %
      Number of poles: 2
      Enclosure class (IEC 34-5): IP55
      Insulation class (IEC 85): F
      Motor protec: PTC
      Tropic protec: NO
      Thermal protec: external
      R1: 0.070 ohm
      R2: 0.070 ohm
      R3: 0.070 ohm
      Winding 1: PHASE 1
      Winding 2: PHASE 2
      Winding 3: PHASE 3
      Mount. design. acc. IEC 34-7: IM V1
      Cos phi 1/2: 0.77-0.77
      Cos phi 3/4: 0.85-0.85
      Net weight: 450 kg
      Colour/Type: Black

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