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The ED-21 magnetic encoder is offered with a ball bearing supported shaft. Two standard output options are available: 0.5 VDC to 4.5 VDC or 4 mA to 20 mA. The magnetic technology used in the ED-21 offers advantages over conventional electro-mechanical potentiometers with sealed electronics, extended temperature ranges, and virtually unlimited life as there are no mechanical parts to wear out.


  • Analog voltage or current output
  • Low profile
  • IP52 sealing
  • Ball bearing 
  • Magnetic sensing technology
  • Encapsulated electronics/sealed
  • Harsh environment compatibility 


Please review product documents or contact us for the latest agency approval information.  

Product Type Features

  • Product Type  Rotary Absolute Encoder

Configuration Features

  • Electrical Connection  3 Pin Header

  • Interface  Analog Voltage, Current

Electrical Characteristics

  • Input Voltage (VDC) 4.75 – 5.25

  • Output Level (High) (VDC) 4.5

  • Output Level (Low) (VDC) .5

  • Output Level (Low) (mA) 4

  • Output Level (High) (mA) 20

Body Features

  • Housing Material  Plastic

  • Flange  Metal

  • Shaft  Metal

  • Enclosure Design  IP52

  • Shaft Seals  IP52

Usage Conditions

  • Operating Temperature  -40 – 85 °C [ -40 – 185 °F ]


  • Bearing Life (Shaft Revolutions)  30 M

  • Maximum Operating Speed (RPM) 3000

  • Shaft Loading (Axial) (Newton) 20

  • Shaft Loading (Radial) (Newton) 10

Packaging Features

  • Package  Dia 31.75 x 21.62 mm


  • Bearing Type  Ball

  • Angular Range (°) 360

Related Materials

Catalog Pages/Data Sheets

Terms and Conditions

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