440N SensaGuard™ Non-Contact Switches

ab guardmaster 440N sensaguard smlThe Rockwell Automation Guardmaster™ SensaGuard non-contact safety switches are Category 4 /SIL 3 rated switches per EN954-1, TÜV functional safety approved to IEC61508.
Featuring the latest generation of RFID technology for coding and inductive technology for sensing, SensaGuard large sensing range and tolerance to misalignment is a cost-effective solution that is ideally suited for a wide range of industrial safety applications.

Switches can be connected to a standard safety relay, for example, the MSR126, MSR127, MSR200/300 Family, SmartGuard™ and Safety I/O Blocks. There are multiple actuator sizes for large sensing distance.


  • Multiple actuator sizes of 15...25 mm
  • IP69K environmental rating
  • Short circuit and over-voltage protection
  • Status indicator on the switch
  • Two safety PNP outputs
  • One auxiliary PNP output