Overview
The Yokogawa PW401 S2 Power Supply Module delivers stable and reliable power for Yokogawa’s CENTUM CS 3000 and ProSafe-RS control systems. Designed for critical industrial automation applications, it ensures consistent performance even under demanding environmental conditions. With its compact design and redundant capability, the PW401 S2 supports uninterrupted operation of control modules and field I/O components.
Moreover, the module’s high efficiency and intelligent monitoring make it a trusted choice for continuous process industries where uptime and precision are essential.
Technical Specifications
| Parameter |
Specification |
| Model |
PW401 S2 |
| Product Type |
Power Supply Module |
| Manufacturer |
Yokogawa Electric Corporation |
| Input Voltage |
100–240 V AC, 50/60 Hz |
| Output Voltage |
24 V DC |
| Output Current |
5 A (nominal) |
| Efficiency |
≥85% |
| Power Consumption |
Approx. 100 VA |
| Redundancy |
Yes (dual redundant operation supported) |
| Protection |
Overvoltage, overload, and short-circuit protection |
| Operating Temperature |
0°C to +50°C |
| Storage Temperature |
-20°C to +70°C |
| Humidity |
10–90% RH (non-condensing) |
| Mounting |
Rack-mounted (system backplane) |
| Compliance |
CE, UL, CSA, and RoHS certifications |
FAQ
Q1: What systems are compatible with the Yokogawa PW401 S2?
A1: It is compatible with Yokogawa CENTUM CS 3000, ProSafe-RS, and FA-M3 series systems.
Q2: Can two PW401 S2 modules operate redundantly?
A2: Yes, dual redundant operation is fully supported for uninterrupted power supply.
Q3: What is the rated output of the module?
A3: The PW401 S2 delivers a 24 V DC output at up to 5 A nominal current.
Q4: How does the module handle overload conditions?
A4: It features built-in overvoltage, overload, and short-circuit protection mechanisms.
Q5: Is the module suitable for continuous industrial use?
A5: Absolutely. The PW401 S2 is designed for 24/7 operation in demanding process environments.
