Product Description

SIEMENS 3SK1211-2CB42

The Siemens SIRIUS 3SK1211-2CB42 is an advanced basic unit safety relay designed for monitoring safety functions in various industrial applications. As part of the modular SIRIUS 3SK1 safety system, this compact 22.5 mm wide device offers a flexible and efficient solution for implementing safety circuits such as emergency stop and protective door monitoring. It operates on a 24V DC supply and features user-friendly spring-type (push-in) terminals for quick and secure wiring. The device’s functionality can be easily parameterized using DIP switches on the front, allowing for versatile configuration without software. With two safe relay outputs and one signaling output, it provides reliable switching and diagnostics, ensuring compliance with the highest safety standards up to SIL 3 and PL e.

Technical Specifications:

  • Product Type: Safety Relay, Advanced Basic Unit

  • Series: SIRIUS 3SK1

  • Supply Voltage: 24 V DC

  • Connection Type: Spring-type terminals (Push-in)

  • Safety Outputs: 2 x NO contacts (enabling paths)

  • Signaling Output: 1 x NC contact

  • Safety Integrity Level: SIL 3 (IEC 61508), SILCL 3 (IEC 62061)

  • Performance Level: PL e (ISO 13849-1)

  • Overall Width: 22.5 mm

SIEMENS 3SK1211-2CB42 Description

SIEMENS 3SK1211-2CB42

Purchase the Siemens SIRIUS 3SK1211-2CB42 safety relay. This 24V DC advanced basic unit features push-in terminals, 2 safe outputs, and achieves SIL 3 / PL e safety levels for reliable machine safety applications.