The RM35TF30 is a multifunction control relay designed for monitoring 3-phase power supplies. It operates over a measurement range of 220 to 480 VAC and protects against phase sequence errors, phase failure, asymmetry, and over/undervoltage conditions. Key features include an adjustable fault time delay from 0.1 to 10 seconds, a selectable asymmetry threshold of 5% to 15%, and two C/O output contacts rated for 5 A. This relay provides critical protection for 3-phase equipment in applications like pumping, hoisting, and packaging machinery.