Siemens 3UA5500-0J Safety Relay is a safety-relay device from Siemens that monitors and switches safety circuits in machinery. The model is identified by the part number 3UA5500-0J and is designed to implement protective functions in electrical control circuits. Manufactured by Siemens, it serves as a safety relay component in hard-wired safety systems and is used to coordinate safety inputs and outputs in compliant machinery safety configurations.
