The DR Motor Input Chokes series consists of three-phase input chokes designed for 400 V mains systems operating at 45 to 65 Hz.
In the provided material, the series covers a wide current range from 2 A to 660 A, with corresponding inductance, power loss, conductor cross-section, mounting dimensions, and weight values varying by part number. The units are built in multiple frame sizes and insulation classes, with defined fixing dimensions and screw sizes to support panel or chassis installation. Across the range, inductance generally decreases as current capacity increases, while physical size, conductor capacity, and mass rise to match higher-power applications. Overall, the DR series is intended for mains input conditioning in motor and drive systems where rated current, installation footprint, and electrical matching must be selected according to the application.
