PW484-10 Yokogawa 100-240VAC Input 24VDC Output
Manufacturer: Yokogawa
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Part Number: PW484-10
Condition：New with Original Package
Product Type:
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Country of Origin: Japan
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The Yokogawa PW484-10 functions as a high-capacity AC-to-DC conversion unit designed for the NFBU series racks within Yokogawa’s Distributed Control Systems (DCS) and Safety Instrumented Systems (SIS). This module accepts a wide-range AC input and delivers a regulated 24V DC output to sustain CPUs, I/O modules, and field-side communication interfaces. We offer this unit as 100% Brand New and Original, ensuring your critical process nodes in oil, gas, and power generation maintain zero-downtime performance.
Technical Specifications
The PW484-10 utilizes high-density power electronics to provide substantial current in a compact form factor:
| Item | Specification |
| Model / Part Number | PW484-10 / S1 |
| Input Voltage | 100 – 240 V AC (Wide Range), 50/60 Hz |
| Output Voltage | 24 V DC (Regulated) |
| Output Power | ~150 W (Typical) |
| Redundancy | Dual-power redundant configuration supported |
| Hot-Swappable | Fully supported for live maintenance |
| Cooling Method | Passive natural convection |
| Protection Class | CE, UL, CSA, ATEX |
| Operating Temperature | 0 °C to +55 °C |
| Dimensions (Approx.) | 50 × 130 × 150 mm |
| Weight / Shipping Weight | 0.8 kg / 2.0 kg |
Engineering Advantages
The PW484-10 overcomes significant industrial power challenges through targeted design features:
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High-Availability Redundancy: The hardware allows two PW484-10 modules to operate in parallel within a single NFBU rack. If one module fails, the secondary unit takes the full load instantly without causing a system reset or process interruption.
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Live Serviceability (Hot-Swap): Engineers can replace a faulty power module while the system remains live. This hot-swappable capability ensures that maintenance occurs without shutting down the controller, which is essential for continuous process industries like chemical refining and pharmaceuticals.
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Aggressive Surge Protection: The wide-range input (100–240VAC) handles significant voltage fluctuations common in remote substation or offshore environments. Internal conditioning circuits filter out electrical noise, delivering a "clean" 24VDC rail that protects sensitive 32-bit RISC processors and analog-to-digital converters.
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Passive Fanless Design: By eliminating mechanical fans, the PW484-10 removes a primary failure point. Natural convection cooling prevents the intake of corrosive gases or conductive dust, extending the module's lifespan in harsh petrochemical or pulp and paper mill environments.
FAQs
Q: Can I use the PW484-10 in both STARDOM and CENTUM VP systems?
A: Yes. The PW484-10 maintains cross-platform compatibility. It fits standard Yokogawa NFBU series racks used in CENTUM VP, ProSafe-RS, and STARDOM FCN/FCJ architectures.
Q: Does this module require manual voltage switching for 110V vs 220V?
A: No. The PW484-10 features an "Auto-Ranging" input. It automatically detects and manages any AC input between 100V and 240V, simplifying global deployment and inventory management.
Q: How do I identify a failure in a redundant setup?
A: The module features front-panel status LEDs. A steady green "READY" LED indicates healthy output. If the module fails, the LED extinguishes and the controller triggers a system alarm through the RAS (Reliability, Availability, and Serviceability) monitoring software.
Q: What is the benefit of the Style S1 versus newer styles?
A: Style S1 represents a mature, proven hardware design with a vast installed base. While newer revisions exist, the S1 provides guaranteed physical and electrical fit for thousands of existing NFBU rack installations, making it the preferred choice for direct replacements.