DCS Power Distribution Solution – YOKOGAWA PW481-50 | CENTUM VP / CS 3000 Series
Where This Product Is Used
The YOKOGAWA PW481-50 is a dedicated power supply module engineered for mission-critical distributed control system (DCS) environments. It is widely deployed across the following industries and applications:
- Oil & Gas Refineries — Sustaining uninterrupted 24 VDC bus power to field control stations (FCS) and I/O modules in hazardous-area DCS cabinets.
- Petrochemical & Chemical Plants — Providing stable, redundant power rails for CENTUM VP process controllers managing reactor temperature, pressure, and flow loops.
- Power Generation (Thermal / Nuclear) — Supplying conditioned DC power to turbine governor control panels and boiler management systems where power quality is non-negotiable.
- Pulp & Paper Mills — Powering continuous-process I/O racks that monitor and control digester, bleaching, and recovery boiler sequences.
- Pharmaceutical & Biotech Facilities — Supporting GMP-compliant control cabinets where validated power integrity is required for batch process documentation.
- Water & Wastewater Treatment — Energizing remote I/O nodes in SCADA-integrated DCS architectures for pump station and filtration control.
- LNG Terminals & Offshore Platforms — Operating in marine-grade enclosures where vibration resistance and thermal stability are critical.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | PW481-50 |
| Manufacturer | YOKOGAWA Electric Corporation |
| Compatible Platform | CENTUM VP, CENTUM CS 3000 |
| Module Type | Power Supply Module |
| Output Voltage | 24 VDC (nominal) |
| Redundancy Support | Yes — dual-module redundant configuration supported |
| Mounting | DIN rail / backplane slot mount (CENTUM VP cabinet) |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | −25 °C to +70 °C |
| Humidity | 5% to 95% RH (non-condensing) |
| Approvals | CE, UL (refer to current YOKOGAWA datasheet for revision-specific marks) |
| Weight | Approx. 100 g |
Note: Always verify specifications against the official YOKOGAWA PW481-50 datasheet for your firmware revision before engineering design.
Why Engineers Specify This Model
- Platform-Native Compatibility — Designed exclusively for CENTUM VP and CS 3000 backplanes; eliminates integration risk from third-party power solutions.
- Redundant Power Architecture — Supports N+1 redundancy configurations, enabling hot-swap replacement without process interruption.
- Stable DC Output Under Load Transients — Tight voltage regulation ensures I/O modules and communication cards receive clean power even during sudden load changes.
- Compact Form Factor — Slot-mount design maximizes cabinet density in space-constrained control rooms.
- Long Service Life — Built to YOKOGAWA’s industrial-grade component standards, supporting multi-decade DCS lifecycle expectations.
- Proven Field Record — Deployed globally in thousands of CENTUM VP installations across refining, power, and chemical sectors.
Complete System Bill of Materials
The PW481-50 is typically specified alongside the following YOKOGAWA CENTUM VP components:
- FCU (Field Control Unit) — e.g., AFV10D / AFV30D processor cards
- I/O Modules — AAI141, AAI841, ADV151, ADV551 series analog/digital I/O
- Communication Modules — ALF111 Vnet/IP interface cards
- Redundant Power Module (pair) — Second PW481-50 for 1:1 redundancy
- Cabinet / Node Unit — CENTUM VP ANB10D or ANR10D node units
- Engineering Workstation — YOKOGAWA CENTUM VP HIS (Human Interface Station)
Contact support@konmask.com for complete BOM quotations and cross-reference assistance.
Compliance & Industry Standards
- IEC 61511 — Functional Safety for Process Industry Sectors (SIL-rated system context)
- IEC 61000 — Electromagnetic Compatibility (EMC) for industrial environments
- CE Marking — European conformity for electrical equipment
- UL Listing — North American safety certification (verify current revision)
- RoHS Compliance — Restriction of Hazardous Substances (EU Directive 2011/65/EU)
- ATEX / IECEx — Consult YOKOGAWA for zone-rated enclosure requirements when deploying in classified areas
Quality Assurance & Sourcing
Konmask.com sources the YOKOGAWA PW481-50 through established industrial automation supply channels. Every unit offered is:
- Inspected for physical integrity and label authenticity prior to listing
- Stored in ESD-safe, climate-controlled warehousing
- Shipped with anti-static packaging and shock-absorbing materials
- Traceable to documented supply chain records available upon request
- Covered by Konmask’s standard return and quality guarantee policy
For new, surplus, or refurbished stock availability and lead times, contact our technical sales team directly.
How to Source This Part
- Confirm your CENTUM VP / CS 3000 revision — Verify backplane compatibility with your system integrator or YOKOGAWA service engineer.
- Check quantity and redundancy requirements — Determine whether single or dual (redundant) power supply modules are needed.
- Request a quote — Email support@konmask.com with your PO number, required quantity, and delivery timeline.
- Add to cart or place a direct order — Use the Buy Now button above, or contact us for bulk pricing and freight terms.
- Expedited sourcing available — For urgent plant shutdowns or emergency replacements, call +0086 19859288691 for priority handling.
Application-Specific FAQ
Q: Is the PW481-50 compatible with both CENTUM VP and CENTUM CS 3000?
A: Yes. The PW481-50 is designed for use within the CENTUM platform family. Always confirm slot and backplane compatibility with your specific cabinet revision before ordering.
Q: Can I run two PW481-50 modules in redundant mode?
A: Yes. CENTUM VP supports dual power supply redundancy. Two PW481-50 modules can be installed in parallel to provide automatic failover with no process interruption.
Q: What is the lead time for the PW481-50?
A: Lead time varies by stock availability. Contact us at support@konmask.com for real-time inventory status and estimated delivery.
Q: Do you provide a warranty or quality guarantee?
A: Yes. All units are covered by Konmask’s quality assurance policy. Contact our team for specific warranty terms applicable to your order.
Q: Can Konmask assist with a full CENTUM VP spare parts list?
A: Absolutely. Our technical team specializes in YOKOGAWA DCS component sourcing. Send your BOM to support@konmask.com for a comprehensive quotation.
Q: Is this module suitable for SIL-rated safety loops?
A: The PW481-50 is a standard DCS power supply module. For SIL-rated safety instrumented systems (SIS), consult YOKOGAWA’s ProSafe-RS product line and your functional safety engineer.
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Contact: support@konmask.com | +0086 19859288691
