The Siemens 3TK2821-1CB30 is a robust safety relay designed to ensure the highest level of safety in industrial automation processes. With a 24V AC screw terminal, this part is engineered for reliable performance in demanding environments. The safety relay features relay enabling circuits (EC) and is suitable for Class A environments only, as per EMC installation environment standards.
This part is designed for single-channel or two-channel sensor inputs, offering flexibility in various applications. It boasts a Safety Integrity Level (SIL) of 1 according to IEC 61508 and a Performance Level (PL) of 'd' as per ISO 13849-1. The 3TK2821-1CB30 also has a hardware fault tolerance of 1, according to IEC 61508, ensuring reliable operation even in the event of hardware failures.
The Siemens 3TK2821-1CB30 safety relay is not only a testament to Siemens' commitment to safety and reliability but also a key component in maintaining the smooth operation of your automation systems. Its compact dimensions (106mm height, 28mm width, and 124mm depth) and lightweight design (0.200 kg) make it an easy fit in most industrial settings.
Please note, this part is not resistant to transverse short circuits. It is designed for instantaneous switching with one NC contact for reporting function and three NO contacts for safety-related functions.
In summary, the Siemens 3TK2821-1CB30 safety relay is a high-quality, reliable component designed to enhance the safety and efficiency of your industrial automation processes.