ARD2F motor protection controller adopts a split structure, which consists of a main body, a display unit, and a transformer, and can be adapted to be installed in various cabinets. It can form a motor control and protection unit with electrical components such as contactors and motor starters, and has functions such as remote automatic control, on-site direct control, panel indication, signal alarm, and field bus communication. It can be widely used in power distribution fields in coal mines, petrochemicals, smelting, electric power, construction and other industries.