Rotary encoder


  • Rotary encoder for use in hazardous areas
  • Intrinsically safe - simple apparatus
  • Quadrature switch contact output
  • Panel mounting
  • IP65 front of panel protection
  • 22.5mm hole mounting
Download logoProduct downloads

The BA490 encoder enables analogue variables to be manually adjusted from within a hazardous area. This intrinsically safe rotary encoder is panel mounting with a quadrature switch contact output that may be directly connected to any instrument that accepts a three-wire input.

Originally developed for use with an intrinsically safe BEKA BA427E manual set point station, the BA490 is equally useful for manual adjustment of PLC variables and controller setpoints in both hazardous and safe areas.



BA490 Rotary encoder
Protection IP65
BA599 rear IP66 sealing assembly Yes



Datasheet PDF logodownload
Instruction manual PDF logodownload
Declaration of Conformity PDF logodownload
CAD files ZIP logodownload

Return to the top of this page