Yokogawa PW482-51 STYLE S2 Power Supply Module

The Yokogawa PW482-51 (Style S2) Power Supply Module is an industrial AC input power module designed for Yokogawa CENTUM VP and related DCS platforms, converting 220–240 VAC input into regulated internal system power for CPU, I/O, and communication modules. It delivers stable, high‑reliability power with support for dual‑redundant configurations in rack installations. Key specs include 220–240 VAC ±10%, 50/60 Hz input, ~230 VA power consumption, and terminal connections via M4 screws. The module plugs into a dedicated backplane (not a standalone PSU) in a rack/base unit at slots P1–P2 and is compatible with Yokogawa systems such as the Field Control Unit (FCU), FIO Node Unit, and Optical ESB Bus Repeater Unit. Weight is roughly 1–2 kg depending on variant, and operating temperature ranges from -20°C to 70°C in suffix variants. Common replacements include the PW482-50 (same voltage class, earlier revision), PW481 (100–120 VAC version), and PW484 (24 VDC version). In industrial environments—chemical processing, power generation, manufacturing, and process automation—the PW482-51 ensures reliable power delivery to CPU, I/O, and field transmitters, supporting continuous system uptime and stable operation of Yokogawa control systems.