Product phase-out/discontinuation of SIRIUS 3TK28 safety relays

The phase-out of SIRIUS 3TK28 safety relays began in January 2015. The devices will no longer be available for ordering as from October 1, 2018. Exception: 3TK2810! We therefore recommend that you make no delay in ordering 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 http://www.siemens.com/sirius/conversion-tool.

If any further questions arise during your conversion activities, please do not hesitate to contact our Technical Assistance: Telephone +49 (911) 895-5907 or email technical-assistance@siemens.com.

You can find more information on the new SIRIUS 3SK safety relays under Industrial Controls > Safety Systems > SIRIUS 3SK Safety Relays or online at http://www.siemens.com/safety-relays.

SIRIUS safety relays are the key elements of a consistent and cost-effective safety sequence. Be it EMERGENCY-STOP disconnection, protective door monitoring or the protection of presses or punches – with SIRIUS safety relays every safety application can be implemented to optimum effect in terms of engineering and price.

SIRIUS safety relays provide numerous safety-related functions:

• Monitoring the safety functions of sensors
• Monitoring the sensor leads
• Monitoring the correct operation of the safety relay
• Monitoring actuators for standstill
• Safety-related disconnection when dangers arise

Depending on the version of the device, SIRIUS safety relays 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.

Note: For 3SK1 successor devices see Safety Technology > Safety Relays -> SIRIUS 3SK Safety Relays.