The Voltage Monitoring Relay is designed for AC/DC over/under voltage measurement. It operates in three voltage ranges: 10-50V, 32-160V, and 100-500V. The lower voltage threshold is set as a percentage of the upper voltage level.This relay features two output contacts that can operate independently or in parallel. It also has a time delay of 0-10 seconds for both Umax and Umin. Additionally, it includes two changeover contacts with a rating of 16 A at 230 VAC supply voltage.With a width of only 17.5 mm, this relay is compact and space-saving, making it suitable for various applications.