The Multifunctional Three Phase Monitoring Relay is designed to monitor phase loss and undervoltage in three-phase systems. It can be used with L1, L2, and L3 voltages ranging from 208-440 VAC. The relay has a measuring range of 208-440 VAC (L-L) and a start-up delay of 500ms. It also has a tripping delay of 500ms and a time range feature. The relay comes with one changeover contact and operates at a control supply voltage of 1. With a width of 22.5 mm, it is compact and easy to install in modular systems.