The PW302 (Model: PW302) is a foundational power supply unit engineered for Yokogawa’s CENTUM CS 3000 and CENTUM VP Distributed Control Systems (DCS). This module is responsible for converting universal AC input into a stable, regulated DC voltage to power the control processors, I/O modules, and internal bus communication interfaces within the Field Control Station (FCS).
In mission-critical industrial environments, power stability is paramount. The PW302 (Part Number: PW302) features an advanced circuit design that filters electrical noise and protects downstream sensitive electronics from voltage surges and short circuits. It is specifically designed to support 1:1 dual-redundant configurations. When two PW302 modules are installed in a redundant rack, they perform active load-sharing; if one unit fails, the other assumes the full load instantaneously without a dip in output voltage, ensuring the DCS remains operational without process interruption.
The PW302 (Model: PW302) is optimized for high efficiency and long-term reliability in continuous-process industries.
| Feature | Details |
| Manufacturer | Yokogawa Electric Corporation |
| Model Number | PW302 |
| Series | CENTUM CS 3000 / CENTUM VP |
| Product Type | System Power Supply Module |
| Input Voltage | 100–240 V AC (Range: 80–264 V AC) |
| Input Frequency | 50/60 Hz |
| Output Voltage | 24 V DC (Regulated internal bus) |
| Current Capacity | Up to 5 A continuous |
| Efficiency | >85% typical at full load |
| Redundancy | Dual-redundant "Pair & Spare" support |
| Protection | Overvoltage, overcurrent, and thermal shutdown |
| Operating Temp | 0°C to +60°C |
| Dimensions | 200 mm $\times$ 150 mm $\times$ 25 mm |
| Shipping Weight | 2.0 kg |
| Country of Origin | Japan |
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