Siemens 6SE6440-2AB21-1BA1 Frequency converter

Siemens 6SE6440-2AB21-1BA1
Item Number: 6SE6440-2AB21-1BA1

6SE6440 SERIES MICROMASTER, DA51-D, 240 V, 650 Hz

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Siemens converters 6SE6440-2AB21-1BA1 of the Micromaster 430 line are used to change the rotational speed of low-power AC motors. The controllers of this line are more advanced for optimal control and operation with stable parameters.

Thanks to the additional channels at the input and output, the operator panel, as well as the ability to adapt for automation systems, frequency converters of the 430 series are more modular.


  • Latest IGBT technology
  • Digital microprocessor control
  • High quality vector control
  • Direct motor flux control (FCC) for improved dynamic performance and optimal motor control
  • V / f control, with parameterize initial voltage
  • V / f control quadratic
  • parameterize V / f curve
  • Torque control
  • "Pick up on the go"
  • Slip compensation
Product IDSiemens 6SE6440-2AB21-1BA1
Device Life StageActive last year
Item Price Group323
Product series6SE6440
Unit Article NumberSTZ8HVDO
Product ID85044084
Mains voltage200 - 240 V
Number of input/outputs phases1/3
Max. output frequency650 Hz
Max. output voltage240 V
Rated output current5.5 A
Dimensions235 x 180 x 250 mm
Weight3,4 Kg


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