Siemens 3TF4422-0BB4 SIRIUS Safety Relay System is a safety relay device from Siemens’ SIRIUS family designed for safety-related control in industrial automation. With part number 3TF4422-0BB4, it provides safety-rated switching to monitor safety inputs and drive machine control outputs in compliant safety circuits. It is used to implement safety-related control circuits in industrial machinery, helping ensure proper protective actions when sensors detect a hazardous condition.
