The Single Phase Overcurrent/Undercurrent Relay is designed for AC/DC over/under current measurement. It has three measurement ranges: 0.4-1.6 A, 1.25-5 A, and 4-16 A. The relay features two output contacts that can operate independently or in parallel. It also has a memory function and manual reset capability. The time delay can be set from 0 to 10 seconds for both Imin and Imax values. The relay has two changeover contacts with a rating of 16 A at 230 VAC supply voltage. It is compact with a width of 17.5 mm, occupying three modules.