UChR-0.4-3-UHL4 — a variable frequency drive (VFD) manufactured by Toshelectroapparat (Uzbekistan), designed for industrial applications. It operates with a 380...480V AC, 3-phase power supply, with a rated input current of 7.5 A, rated output current of 7 A, and output current at 120% overload (1 minute) of 8.4 A, used to control asynchronous motors with a power rating of 3.7 kW. The enclosure type is A1, with dimensions of 160×300×172 mm and a weight of 4.5 kg. It has an IP20 protection rating and is adapted for UHL4 climatic conditions (cold and temperate climates). The device ensures efficiency, energy savings, and extended motor lifespan for controlling pumps, fans, and other medium-power industrial equipment. It integrates with automated control systems (ACS) via the Modbus protocol.