Yokogawa PW101 S2 Power Supply Module | Replacement, Equivalent & Selection Guide
The Yokogawa PW101 S2 is a dedicated DC power supply module designed for the CENTUM CS 3000 distributed control system (DCS). It provides stable, regulated power to field control stations (FCS) and I/O modules, ensuring continuous and reliable process automation. This page serves as a comprehensive selection, replacement, and compatibility reference for industrial procurement engineers and automation system integrators.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | PW101 S2 |
| Manufacturer | Yokogawa Electric Corporation |
| Series | CENTUM CS 3000 |
| Module Type | DC Power Supply Module |
| Input Voltage | 100–240 V AC, 50/60 Hz |
| Output Voltage | 24 V DC |
| Weight | Approx. 360 g |
| Mounting | DIN Rail / Nest-mount (CS 3000 chassis) |
| Operating Temperature | 0°C to 55°C |
| Certifications | CE, UL (refer to Yokogawa datasheet for full listing) |
Compatible Replacement & Equivalent Models
When the original PW101 S2 is unavailable or end-of-life, the following models may serve as functional replacements or equivalents. Always verify electrical and mechanical compatibility before substitution.
- Yokogawa PW101 S1 — Earlier revision; functionally similar, verify firmware compatibility
- Yokogawa PW481 — Redundant power supply for CS 3000 / CS 1000 platforms
- Yokogawa PW402 — Alternative power module for CENTUM VP series (confirm chassis fit)
- Third-party 24 V DC DIN-rail PSU — Must match output current rating and connector pinout; not recommended for safety-critical loops without validation
Note: Konmask.com recommends using genuine Yokogawa modules for safety-critical applications. Contact our team for cross-reference verification.
Why Choose the Original Model
- Guaranteed compatibility — Factory-validated for CENTUM CS 3000 FCS nests
- Stable DC output — Low ripple ensures accurate I/O signal integrity
- Hot-swap capable — Supports redundant power configurations without process interruption
- Long service life — Designed for 24/7 continuous industrial operation
- OEM traceability — Full Yokogawa part number and revision traceability for audit compliance
Typical Applications
- Oil & gas refinery DCS power distribution
- Chemical plant process control stations
- Power generation facility automation systems
- Pharmaceutical batch control infrastructure
- Pulp & paper mill CENTUM CS 3000 installations
System Compatibility
- Primary platform: Yokogawa CENTUM CS 3000 (all revisions)
- Secondary platform: CENTUM CS 1000 (verify nest type)
- Not compatible with: CENTUM VP without adapter; STARDOM; ProSafe-RS (dedicated PSU required)
Selection Guide
Use the following criteria to confirm the PW101 S2 is the correct module for your application:
- Platform check — Confirm your FCS nest is CENTUM CS 3000 (model prefix AFV10S / AFV30S)
- Redundancy requirement — Single PSU (PW101 S2) or redundant pair (2× PW101 S2 or PW481)?
- Input power source — Verify site AC supply is 100–240 V AC single-phase
- Load calculation — Sum I/O module current draw; ensure PW101 S2 rated output is not exceeded
- Revision — S2 revision is the current production standard; S1 is legacy
Not sure? Send your system configuration to support@konmask.com and our engineers will confirm the correct part.
Quality Assurance & Sourcing
- All modules are sourced from authorized distributors or verified surplus channels
- Each unit undergoes visual inspection and functional power-on verification before shipment
- Original Yokogawa packaging and documentation preserved where available
- Traceable batch records available on request for regulated industries
- 12-month warranty against manufacturing defects
How to Order
- Click Add to Cart or Buy Now on this page
- For bulk orders (>5 units) or urgent requirements, email support@konmask.com
- Provide your PO number, delivery address, and required delivery date
- Our team will confirm stock, lead time, and issue a proforma invoice within 24 hours
Replacement & Compatibility FAQ
Q: Can PW101 S1 replace PW101 S2?
A: In most cases yes, but verify the firmware revision of your FCS controller. S2 includes minor hardware improvements over S1.
Q: Is the PW101 S2 compatible with CENTUM VP?
A: No. CENTUM VP uses a different power module family. Contact us for the correct VP power module.
Q: Can I run two PW101 S2 modules in redundancy?
A: Yes. CENTUM CS 3000 supports dual PSU redundancy in the same nest. Both modules must be the same revision.
Q: What is the lead time for out-of-stock units?
A: Typically 2–8 weeks depending on global surplus availability. Contact us for current stock status.
Q: Do you provide a certificate of conformance?
A: Yes, available on request for regulated industries.
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