Product Description

The PW481-50-S2 is a compact, high-efficiency AC-to-DC power conversion module designed for the Yokogawa CENTUM VP control system. It converts 100–120 V AC input into regulated DC bus voltages required by Field Control Units (FCUs) and associated I/O nodes. The “50” designation identifies this as a standard type (non-explosion-proof) module, while the “S2” revision represents an updated hardware design optimized for thermal management and extended operational longevity. Despite its slim and lightweight profile, the module delivers industrial-grade stability for continuous 24/7 process automation.

Technical Specifications

Core Advantages

• High-density cabinet compatibility: Ultra-slim 2.2 cm width maximizes I/O module density in FCU racks.

• Enhanced electrical performance: Advanced filtering minimizes AC line noise affecting sensitive analog I/O conversions.

• Quality assurance: “Made in Japan” origin ensures industrial-grade reliability and consistent MTBF.

• Optimized S2 hardware: Minor component updates improve thermal performance and module longevity while remaining backward compatible.

Technical FAQ

Q: What does the “S2” suffix indicate?
A: The “S2” identifies a hardware revision level. Revisions typically include minor component improvements that increase MTBF and thermal stability while maintaining full backward compatibility with previous PW481-50 modules.

Q: Can the PW481-50-S2 be used in 220–240 V AC systems?
A: No. The PW481-50-S2 is strictly rated for 100–120 V AC. For 220–240 V AC applications, the PW482 series should be used to avoid hardware damage.