The grid- and plant protection device UFR1001E monitors voltage and frequency in plants for own generation of electricity. It complies with the requirements of VDE-AR-N 4105:2018-11, VDE-AR-N 4110:2018-11, G98, G99, ÖVE/ÖNORM E 8001-4- 712:2009 and other standards for generators connected to the public grid. The UFR1001E is a dual-channel device and thus one-fault-proof.