784191 NOZ e5.13p C 24VDC 2n/o Safety Relay. The innovative PNOZelog product range combines the experience of electromechanical safety relays with the advantages of modern electronics. With PNOZelog you can reliably monitor up to four safety functions. Wear‑resistance, safety and long service life ensure that it is cost‑effective to use. PNOZelog can be easily linked through logic operations. Increase the availability of your machine thanks to expanded diagnostics. Power‑up tests, self‑checking and runtime tests also guarantee maximum safety.