The eSure R48-3200e2 rectifier converts standard AC supply voltages into stable nominal -48V DC voltage adjustable to the needs of the application. The R48-4000 is a constant power rectifier designed with the latest patented switch-mode technology using DSP (Digital Signal Processor) functionality for efficient operation. For a higher load capacity, rectifiers can be connected in parallel and intelligent control can be added with the help of a separate controller.