Overview

The Yokogawa PW401 Power Supply Module is an integral component of Yokogawa’s distributed control systems (DCS) and safety systems. It provides stable, regulated DC power to system modules, ensuring the continuous, reliable operation of critical industrial control systems. Designed for demanding environments such as oil & gas, chemical processing, and power generation, the PW401 is built to operate in safety-critical applications where uptime and system reliability are paramount.

The module comes in different versions, such as the PW401 S2 and PW401 S4, which differ slightly in dimensions and specifications but maintain the same high standards of reliability and performance.

Technical Data

Key Benefits

• Stable DC Output: Delivers a clean, regulated 5.1 V DC, essential for powering sensitive control modules.

• High Current Capacity: Provides up to 20 A of output current, making it suitable for powering large racks or multiple system modules simultaneously.

• Compact Design: The module’s space-efficient design ensures it fits easily into Yokogawa racks while minimizing physical footprint.

• Reliability: Built for continuous operation, the PW401 is robust and capable of functioning in harsh industrial environments, offering high availability in mission-critical systems.

• Serviceability: Its modular design makes it easy to replace or maintain, minimizing downtime and maintenance effort.

Typical Applications

• Oil & Gas: Powers essential safety and control modules in refineries, offshore platforms, and pipelines.

• Chemical Processing: Ensures uninterrupted operation of distributed control systems (DCS) used to monitor and manage chemical processes.

• Power Generation: Supplies reliable power to turbine and boiler control systems, ensuring stable operation.

• Water Treatment: Supports automation and monitoring equipment in wastewater and drinking water treatment plants.

• Transportation & Infrastructure: Powers safety-critical monitoring systems in rail, air, and maritime transport sectors.

FAQ

Q1: What is the output of the PW401?
A1: It delivers a regulated 5.1 V DC output with a maximum current of 20 A.

Q2: Is it suitable for hazardous environments?
A2: Yes, the PW401 is industrial-grade and designed to operate reliably in demanding, harsh environments.

Q3: What are the main variants?
A3: The PW401 comes in different versions such as S2 and S4, which have slight variations in their dimensions and specifications.

Q4: What systems use the PW401?
A4: It is widely used in Yokogawa HIMax safety systems and distributed control systems (DCS) platforms for oil & gas, chemical processing, power generation, and other industrial applications.