The Pilz 772001, also known as the PNOZ s1, is a high-performance safety relay designed for monitoring essential safety functions in industrial environments. It is commonly used for applications such as E-STOP pushbuttons and safety gate monitoring. As part of the PNOZsigma product family, this unit combines maximum safety with a very narrow housing width of just 17.5 mm, saving valuable space in the control cabinet. The PNOZ s1 provides a reliable and cost-effective solution for achieving high safety standards, including PL e and SIL CL 3, ensuring the protection of both personnel and machinery.