The ATS 400 with Adapter for DIN rail is a multi-function electronic part manufactured by LUMEL. It has dimensions of 48x96mm and fits on a 45x92mm DIN rail. It is a versatile device that provides protection against overloading, undervoltage, and short-circuiting. It also provides load control, voltage and current regulation, and protection of electric motors. Additionally, it provides a range of other features including one-time power-on delay, voltage ramping, external comparator input, and external restart input.