Voltage Monitor, E1YF400V01 0.70

The E1YF400V01 0.70 is a voltage monitoring relay designed for three-phase systems with a neutral connection. It provides reliable protection by continuously monitoring each phase for undervoltage conditions. Operating at a nominal voltage of 400/230V AC, the relay has a fixed switching threshold set at 161V (L-N), corresponding to 70% of the nominal voltage. With a hysteresis of approximately 5%, the device ensures stable detection and avoids false tripping due to minor voltage fluctuations. A tripping delay of approximately 200 milliseconds is integrated to filter out transient dips and provide consistent performance. The E1YF400V01 0.70 features a single changeover contact rated at 250V AC and 5A, making it suitable for various industrial and commercial applications. Its compact 17.5mm DIN-rail mountable design allows for quick and space-saving installation in control panels. A yellow LED indicator provides clear feedback on the relay’s output status, allowing operators to easily monitor system conditions. Built for precision, safety, and ease of use, this relay is ideal for protecting sensitive equipment from undervoltage-related issues in three-phase power systems. - Monitoring relays ENYA series - Voltage monitoring 3- & 1-phase - Voltage monitoring in accordance with VDE 0108-100 & VDE 0100-718 - Undervoltage monitoring - measuring range 230/400V AC - Measuring voltage = supply voltage - 1 changeover contact - width 17.5mm - Installation type