Yokogawa Electric Corporation PW481 Power Module

The Yokogawa PW481 Power Module (Style S2) is a specialized power supply module engineered exclusively for Yokogawa CENTUM VP and FIO/FCU control systems, delivering dedicated backplane power to CPU, I/O, and communications modules. It accepts 100–120 VAC ±10% at 50/60 Hz, draws ~2.5 A, and consumes about 200 VA to support internal distribution within DCS/PLC architectures. Installed in a rack/base module (slot P1–P2) and designed for high reliability, the PW481 supports dual-redundant configurations with a dedicated backplane connector and weighs around 1 kg. System compatibility spans FCU, FIO Node Units, and Optical ESB Bus Repeater Units, making it suitable for industrial environments such as chemical processing, power generation, manufacturing, and process automation where continuous uptime of CPU, I/O, and communication modules is critical.