Siemens LINE MONITORING RELAY 1CO 160 - 690V FOR PHASE SEQUENCE FAILURE- IMBALANCE - 3UG45121AR20

The Siemens 3UG45121AR20 line monitoring relay is designed to protect electrical systems by detecting phase sequence failures and imbalances within the voltage range of 160-690V. Featuring a single changeover (1CO) contact, this relay offers reliable monitoring for critical electrical installations, ensuring safe operation. It helps prevent damage to motors and other equipment by providing early warning for phase issues, promoting system efficiency and reducing the risk of costly faults.