The TE Connectivity / Kilovac 401-45X is a reliable undervoltage relay designed for three-phase systems operating at 50/60 Hz. This model is configured to work with a 120VAC power supply, featuring a 3-wire connection and an operating range of 85-120V (line-to-line). Equipped with durable 125VDC contacts, this relay offers dependable protection against voltage drops in industrial applications.