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3TK28 Safety Relays

3TK28 Safety Relays

SIRIUS 3TK2810 safety relays provide the following safety-related functions:

  • Monitoring actuators for speed
  • Monitoring actuators for standstill

They satisfy the most stringent requirements (PL e) of EN ISO 13849-1 and achieve the highest Safety Integrity Level (SIL 3) according to IEC 61508.

Product phase-out/discontinuation of SIRIUS 3TK282, 3TK283, 3TK284 and 3TK285 safety relays

3TK282, 3TK283, 3TK284 and 3TK285 safety relays will no longer be available for ordering as from October 1, 2018. Exception: 3TK2810! Order the successor generation of safety relays, SIRIUS 3SK!

For old to new conversions, as well as for conversions from other suppliers, our conversion tool is available online at

If any further questions arise during your conversion activities, please do not hesitate to contact our Technical Support:

For 3SK successor devices, see “SIRIUS 3SK Safety Relays”.

Did you know, we are an entrusted Siemens approved partner?