YOKOGAWA POWER SUPPLY Yokogawa PW401 S2 Yokogawa PW401 S2 is a power supply unit associated with Yokogawa control-system hardware. It is used in industrial process-control environments, particularly in systems such as CENTUM CS 3000, supporting control-system operation in applications including power generation, chemical processing, and other large-scale industrial plants. Technical Specifications Core electrical data Manufacturer Yokogawa Model PW401 S2 Product Type Power