Yokogawa NFPW442-51 S2 – Redundant Power Supply Module | CENTUM VP DCS Platform
Engineering Background
The NFPW442-51 S2 is a field-proven DC power supply module engineered for Yokogawa’s CENTUM VP distributed control system. Designed to deliver stable, regulated power to I/O field control units (FCU) and associated node cards, it forms the backbone of reliable process automation in continuous and batch manufacturing environments.
Product Positioning
Targeted at process engineers and MRO procurement teams managing CENTUM VP installations, the NFPW442-51 S2 is the OEM-specified replacement module for power subsystem maintenance, redundancy upgrades, and emergency spares programs. Konmask.com supplies verified units with full traceability documentation.
Complete Technical Specifications
- Part Number: NFPW442-51 S2
- Manufacturer: Yokogawa Electric Corporation
- Platform: CENTUM VP / CENTUM CS 3000 (compatible)
- Module Type: DC Power Supply Module
- Input Voltage: 24 V DC (nominal)
- Output: Regulated DC power for FCU node cards
- Redundancy: Supports 1:1 redundant power configuration
- Mounting: DIN-rail / backplane slot mount (CENTUM VP cabinet)
- Weight: 1,320 g (approx.)
- Revision: S2
- Compliance: CE, UL (per Yokogawa platform certification)
- Operating Temperature: 0 °C to 55 °C
- Storage Temperature: −25 °C to 70 °C
- Humidity: 5% to 95% RH (non-condensing)
Proven Application Environments
- Oil & Gas upstream/downstream process control
- Petrochemical and refinery DCS power subsystems
- Pharmaceutical batch manufacturing (FDA-regulated sites)
- Pulp & paper and chemical plant FCU power redundancy
- Power generation and utilities CENTUM VP installations
- Emergency spares and MRO programs for CENTUM VP sites
Engineering Advantages
- Hot-swap capable: Supports live replacement without FCU shutdown in redundant configurations
- Stable regulated output: Protects sensitive I/O node cards from voltage transients
- OEM-specified: Direct replacement per Yokogawa CENTUM VP hardware documentation
- Compact form factor: Slot-compatible with existing CENTUM VP cabinets — no retrofitting required
- Long service life: Industrial-grade components rated for continuous 24/7 operation
System Architecture & Signal Flow
Within the CENTUM VP architecture, the NFPW442-51 S2 resides in the power supply slot of the Field Control Unit (FCU) nest. It converts incoming 24 V DC plant power to the regulated voltages required by the FCU processor card, I/O node cards, and communication bus interfaces. In a redundant configuration, two NFPW442-51 S2 modules operate in parallel — if one fails, the standby unit assumes full load without interruption, ensuring zero-downtime power continuity for the control loop.
Sourcing & Quality Verification
- Condition: New surplus / refurbished (specify at inquiry)
- Traceability: Serial number and revision label verified prior to shipment
- Inspection: Visual, functional, and dimensional checks per IPC-A-610 workmanship standards
- Packaging: ESD-safe anti-static bag + foam-lined carton
- Lead Time: In-stock units ship within 1–3 business days; contact us for availability confirmation
- Warranty: 12-month Konmask warranty against manufacturing defects
Procurement Process
- Confirm part number and revision (NFPW442-51 S2) with your site documentation
- Submit RFQ via Konmask.com product page or email support@konmask.com
- Receive quotation with stock confirmation and lead time within 24 hours
- Issue PO — we accept T/T wire transfer, PayPal, and major credit cards
- Shipment with tracking number and packing list provided
- Post-delivery technical support available from our DCS engineering team
Technical FAQ
Q: Is the NFPW442-51 S2 compatible with CENTUM CS 3000?
A: Compatibility depends on the specific FCU nest revision. Please provide your FCU model number for confirmation before ordering.
Q: Can this module be used in a non-redundant single-supply configuration?
A: Yes. The NFPW442-51 S2 operates in both simplex and redundant configurations within the CENTUM VP cabinet.
Q: What is the difference between S1 and S2 revisions?
A: The S2 revision incorporates component-level improvements for enhanced thermal performance and EMC compliance. Always match the revision to your site’s installed base where possible.
Q: Do you provide a Certificate of Conformance (CoC)?
A: Yes. A CoC is available upon request for all units shipped from Konmask.com.
Q: What is the minimum order quantity (MOQ)?
A: MOQ is 1 unit. Volume pricing is available for orders of 5+ units.
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