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Product Overview
The Yokogawa PW402 Power Module is a high-reliability power supply unit designed for use within Yokogawa’s Distributed Control Systems (DCS), including the CENTUM series and other industrial automation platforms. The PW402 provides a stable, regulated power source to critical control system components, ensuring uninterrupted operation of controllers, I/O modules, communication devices, and associated field instruments.
With its robust industrial-grade design, the PW402 delivers consistent performance even in harsh environments. It incorporates advanced protection features such as overvoltage, overcurrent, and thermal shutdown, safeguarding sensitive control equipment from power-related failures. The module is engineered for high efficiency, minimal heat generation, and long operational life, supporting Yokogawa’s reputation for dependable process automation solutions.
Key Features
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Reliable power supply for Yokogawa DCS and control systems
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Stable voltage output for controllers, I/O modules, and communication devices
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Industrial-grade construction for operation in demanding environments
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Advanced protection: Overvoltage, overcurrent, short-circuit, and thermal safeguards
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High efficiency with low power loss and minimal heat generation
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Compact, modular design for easy system integration
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Hot-swappable for reduced downtime during maintenance
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LED status indicators for quick visual diagnostics
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Complies with international safety and electromagnetic compatibility standards
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Designed for continuous 24/7 operation in critical process industries
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Power Supply Module |
| Brand | Yokogawa |
| Model Number | PW402 |
| Output Voltage | 24V DC (regulated) |
| Output Current | Up to 10 A (model dependent) |
| Input Voltage Range | 100–240V AC, 50/60Hz |
| Efficiency | ≥ 90% |
| Protection Features | Overvoltage, overcurrent, thermal shutdown |
| Operating Temperature Range | 0°C to +55°C (32°F to 131°F) |
| Storage Temperature Range | -20°C to +70°C (-4°F to 158°F) |
| Humidity Range | 5% to 95%, non-condensing |
| Hot-Swappable | Yes |
| Diagnostics | LED indicators for power status and faults |
| Certifications | CE, UL, RoHS, CSA compliant |
| Dimensions | 280 x 100 x 280 mm |
| Weight | 3.26 kg |
| Mounting | Rack or panel mounting compatible |
Industry Applications
The Yokogawa PW402 Power Module is essential for reliable system operation across a wide range of industries:
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Oil & Gas: Supplies regulated power to offshore platforms, refineries, and pipeline control systems
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Power Generation: Provides stable voltage for turbine control, monitoring, and SCADA components
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Chemical Processing: Ensures continuous power for process automation and control equipment
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Pharmaceutical Manufacturing: Supports secure, reliable power for regulated production environments
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Water and Wastewater Treatment: Maintains control system functionality for remote and distributed assets
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Metals and Mining: Delivers consistent power for automation systems in heavy-duty industrial operations
Product Advantages
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Consistent Power Delivery: Ensures reliable operation of Yokogawa control and monitoring systems
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Enhanced System Protection: Built-in safety features protect against electrical faults and damage
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High Efficiency: Reduces energy consumption and minimizes heat buildup within control cabinets
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Compact Design: Saves space in control panels while delivering high power output
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Minimized Downtime: Hot-swappable for easy replacement without system shutdown
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Durability: Engineered for long operational life under continuous use in harsh environments
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Compliance Assurance: Meets global safety, EMC, and environmental standards
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Visual Status Indicators: LED diagnostics provide immediate system feedback
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Seamless System Integration: Optimized for Yokogawa DCS platforms and industrial networks
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Reliable Field Performance: Proven stability in mission-critical automation applications
Frequently Asked Questions (FAQ)
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What is the primary function of the Yokogawa PW402?
It supplies regulated DC power to Yokogawa control system components, including controllers, I/O modules, and communication devices. -
Is the PW402 compatible with all Yokogawa control systems?
Yes, it integrates seamlessly with Yokogawa’s DCS platforms, including the CENTUM series. -
Can the PW402 be replaced without shutting down the system?
Yes, it is designed to be hot-swappable, minimizing system downtime during maintenance. -
What protection features are included in the PW402?
It offers overvoltage, overcurrent, short-circuit, and thermal protection. -
What is the output voltage and current of the PW402?
It provides 24V DC output with a current capacity of up to 10A, depending on the specific configuration. -
What is the efficiency rating of the PW402?
The module operates with efficiency of ≥ 90%, ensuring minimal power loss. -
How does the PW402 indicate operational status?
LED indicators provide clear visual feedback for power status and fault conditions. -
What are the installation requirements for the PW402?
It is designed for easy rack or panel mounting within control cabinets. -
Can the PW402 operate in harsh industrial environments?
Yes, it is built for continuous use in environments with wide temperature and humidity ranges. -
Is the PW402 certified for global use?
Yes, it meets CE, UL, RoHS, and CSA certifications for international industrial applications.
Recommended Related Models
| Model Number | Description |
|---|---|
| PW401 | Lower-capacity power module for Yokogawa systems |
| PW403 | High-capacity 24V DC power module for heavy-duty use |
| PW404 | Redundant power module for critical system applications |
| PW405 | Compact power supply for space-constrained installations |
| PW406 | Power module with enhanced environmental protection |
| PW407 | Advanced diagnostics power module for Yokogawa control networks |
Popular Yokogawa Models
| Model Number | Description |
|---|---|
| CENTUM VP | Yokogawa’s flagship Distributed Control System (DCS) |
| YTA610 | Yokogawa Temperature Transmitter |
| DPH-1000 | Yokogawa Data Acquisition System |
| YFGW710 | Wireless Gateway for Field Instrumentation |
| YS1700 | Yokogawa Digital Temperature Controller |
| 10.4-inch HMI | Yokogawa Human-Machine Interface Panel |
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