SKU: PW481-50

Yokogawa PW481-50 Field Control Unit Power Supply Module

The Yokogawa PW481-50 is a high-reliability power supply module designed for CENTUM VP Field Control Units. It provides stable power distribution for processors and I/O modules while supporting dual-redundant configurations and hot-swap maintenance. This Japan-made module ensures maximum uptime in critical industrial automation environments.

Product Description

The Yokogawa PW481-50 serves as the primary power regulation component for Field Control Units (FCU) within high-availability industrial automation frameworks. This module supplies regulated DC power to the processor cards, communication bus couplers, and various I/O modules installed within the cabinet. Because stability is critical in process control, the PW481-50 converts standard mains electricity into the precise voltages required by sensitive internal circuitry.

System reliability increases significantly when engineers deploy these modules in a dual-redundant configuration. In this setup, two PW481-50 units share the load, ensuring that if one power source or module fails, the secondary unit maintains system operation without interruption. This fault-tolerant capability makes the module an essential choice for mission-critical industries such as petrochemical refining, chemical processing, and power generation where downtime results in significant safety risks or financial loss.

Furthermore, the module includes advanced protective features to safeguard the entire DCS rack. Integrated overload protection and short-circuit detection mechanisms prevent electrical faults from propagating through the system bus. The PW481-50 also supports hot-swapping in redundant configurations, which allows technicians to replace a faulty unit without powering down the process. Consequently, this module streamlines maintenance workflows and supports continuous production cycles in harsh industrial environments.