Dold&Söhne Under-voltage Relay IL907112/010 Manufacturer: Dold&Söhne Description: Under-voltage relay 3/NAC400/230V 0.85UN Type: IL907112/010 Rated voltage: 400 V Rated frequency: 50..60 Hz Specified measurement range: 3N, 400/230 V Max. switching power: 6 VA Release delay: 0 ms Voltage type: AC Mounting type: DIN rail Width in division units: 2 Installation height: 61 mm Protection class (IP): IP20 Dold&Söhne Under-voltage Relay IL907112/010: additional details for monitoring AC and three-phase networks for under-voltage, asymmetry, or phase failure, and for activating emergency lighting according to DIN VDE 0108. Also suitable for neutral conductor monitoring in three-phase networks. In three-phase systems with a neutral conductor, not only three-phase, symmetrical loads are typically connected, but also certain loads and control circuits are connected single-phase to the neutral conductor. If there is a break in the neutral conductor in such a system, the asymmetrical load on the network can lead to a dangerous imbalance of the voltages with respect to the disconnected neutral conductor. This can cause single-phase connected devices to be destroyed by overvoltages or to become non-functional due to undervoltages, even though no fuse has blown. The IL 9071 detects such network conditions and can immediately shut down the system. EAN: 4030641470746.