Safety relays

Your Benefits

  • Complete monitoring and evaluation of sensors
  • Faster response times provide short safety distances
  • Saves space in the control cabinet thanks to its compact design
  • Fast diagnostics via status information reduces downtime
  • Fast, tool-free exchange via coded, plug-in screw-type terminals
  • Combines the advantages of classic relays and easy circuitry


The UE43-3AR safety relay monitors all safety switches via cross-circuit detection and sequence monitoring with an automated reset.

At a glance
  • Evaluation unit for safety switches
  • Cross-circuit detection and sequence monitoring at the dual-channel input signal
  • 3 safety outputs, 1 application diagnostic output
  • Automated reset
  • External device monitoring (EDM)
  • Coded version for all slots


Technical overview

  • Technical data overview

    Technical data overview

    ApplicationsEvaluation unit
    Safety integrity level

    SIL3 (IEC 61508)

    SILCL3 (EN 62061)

    CategoryCategory 4 (EN ISO 13849)
    Performance levelPL e (EN ISO 13849)
    Sensor monitoring

    Sequence monitoring

    Cross-circuit detection

    Number of enable current contacts3
    Housing width22.5 mm
All technical data can be found accompanying the individual product