3SK1121-2CB44 SIEMENS

The SIRIUS 3SK1121-2CB44 is an advanced safety relay basic unit designed for sophisticated safety applications requiring time-delayed responses. This relay features two enabling circuits for immediate safety functions and incorporates two normally open (NO) contacts that provide instantaneous response. Additionally, it includes two normally open (NO) contacts with a configurable time delay ranging from 5 to 300 seconds, offering flexibility in system design. The relay operates on a 24 V DC supply voltage, ensuring compatibility with various industrial control systems. Its spring-loaded terminals facilitate quick and secure wiring, reducing installation time and enhancing connection reliability. This unit is part of the advanced series, offering enhanced diagnostic capabilities and improved performance compared to standard safety relays. It is suitable for applications where precise timing and reliable safety interlocks are critical. The 3SK1121-2CB44 is ideal for use in machinery, automation, and process control systems where safety is paramount. Its robust design and advanced features make it a dependable choice for demanding industrial environments.