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IE4 Super Premium Standard Motors

The classic standard motor consists up to its technical improvement in efficiency class IE3 of an asynchronous motor. Many millions of these motors have been and are still being built and sold. They meet with cheap production costs and high reliability important standard tasks. Smaller motor powers are directly connected to the mains, larger motors receive line start or frequency inverters. We leave this behind us and by now count with the series MPM on high efficiency synchronous motors.

Series MPM – The Facts

With the introduction of efficiency class IE4 / efficiency factor IE4 in the norm IEC 60034-30-2 the law states a further reduction of losses in standard-motors. Goal is to save more precious energy that is lost in the conversion of electrical into mechanical power. In the present state asynchronous standard motors can be replaced by synchronous motors by new materials, existing technical know-how and experience of line production. The loss of engine power is reduced to about the half.

The series MPM (Merkes Permanentmagnet Motor) takes up the basic physical principle of the synchronous motor and combines it with other elements of a proven principle motor serial production. Result is an energy saving electromotor according efficiency class IE4 and even the presumed efficiency class IE5:

  • Efficiency up to 98,0% (pure sinus)
    • Optimum Energy
  • Motor housings of series MPM
    • 80L
    • 90LL
    • 112M
    • 132M
    • 160L
  • Suitable for frequency inverters with software „Sensorless-Vector-Control“
    • Wide range of function expansion as
      • Torque Control
      • Speed Control (without slip)
      • Positioning partially
      • Programmable acceleration and deceleration ramps
      • Speed and power adjustment to current load requiments (pumps, fans …)
      • field weakening
  • Feedback unit not needed
    • Space and cost savings
    • The detection signal of „Sensorless-Vector-Control“ is completely sufficient in its accuracy and bandwidth for many applications
    • Modern control procedures also solve high exacting tasks as positioning
  • Ventilation on B-side
    • A fan wheel on the shaft accoding to standard increases the motor power
  • cos φ near 1,0
    • Optimum Current
  • IP Class: 55
  • Number of Poles: 6