The Victron Energy UFR1001E anti-islanding relay is a grid and plant protection device that monitors voltage and frequency in grid-connected power-generation systems. Its dual-channel design provides one-fault-proof monitoring, with configurable under/overvoltage, under/overfrequency, vector-shift and ROCOF protection for single- or three-phase installations.
Designed for DIN-rail mounting, the relay supports feedback monitoring of connected switching devices and preset grid-code programs for easier setup. It operates from a 24–270V AC/DC supply, with IP30 housing protection and IP20 terminals, helping provide reliable anti-islanding protection in compliant grid-tied systems.