The STBAVI1400K is a industrial control transformer (also referred to as a machine tool control transformer) manufactured by Schneider Electric under the brand Square D. It is designed to supply control circuits with a reliable and consistent voltage, stepping down incoming line voltage to a lower voltage suitable for PLCs, contactors, relays, and other industrial control devices. This model is built for applications requiring robust performance, reduced no-load losses, and high inrush current handling capability.