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- Yokogawa
- PW484-51
- Power Supply Module
- Japan
- 146.5 × 199.5 × 49.7 mm
- 1kg
- Xiamen, China
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Industrial Power Supply Module Technical Report
Model: PW484-51
1. Product Overview
The PW484-51 is an industrial rack-mounted power supply module designed for automation and process control systems that require stable, regulated DC power distribution. It is installed inside control cabinets and system racks, where it supplies power to controllers, I/O modules, communication units, and other industrial automation components.
This module is designed for integration into modular power architectures rather than standalone use. It operates as part of a distributed control system where multiple power units are configured to ensure redundancy and continuous operation.
The PW484-51 is typically used in environments requiring high reliability, long service life, and stable electrical performance under continuous industrial load conditions.
2. Brand Information
The product belongs to a globally recognized industrial automation manufacturer specializing in:
- Process control systems
- Distributed control system (DCS) architectures
- Industrial instrumentation and measurement systems
- Control system hardware platforms
The PW series is widely deployed in industrial environments where power stability and system uptime are critical.
3. Series Information (PW Series)
The PW series is a family of modular rack-mounted power supply units designed for industrial automation systems.
Key characteristics include:
- Modular plug-in rack structure
- Hot-swappable maintenance capability
- Redundant power operation support
- Industrial-grade electrical isolation
- Continuous 24/7 operation capability
- Designed for distributed control system integration
The PW484-51 belongs to the AC input category within the PW484 power supply family, commonly used for higher voltage industrial power environments.
4. Product Function Description
The PW484-51 functions as a regulated AC-to-DC power conversion module used in industrial control racks.
Main functional roles:
- Conversion of AC input power into stable DC system output
- Distribution of regulated power to system modules
- Voltage stabilization under varying load conditions
- Support for redundant power configurations
- Electrical isolation from system noise and disturbances
It is typically deployed in redundant configurations to ensure uninterrupted operation in critical automation systems.
5. Product Applications
The PW484-51 is widely used in industrial automation environments such as:
- Petrochemical processing facilities
- Oil and gas production systems
- Power generation control stations
- Water treatment and utility automation plants
- Manufacturing production automation lines
- Distributed control system (DCS) installations
- Industrial monitoring and process control systems
These environments require stable and uninterrupted power infrastructure for continuous operation.
6. Product Advantages
The PW484-51 provides several engineering advantages:
- Stable performance under continuous industrial load conditions
- Designed for long-term 24/7 operation
- Modular rack structure for easy maintenance and replacement
- Supports redundant system configuration for high reliability
- Strong resistance to electrical noise and transient disturbances
- Compact design suitable for control cabinet integration
- Optimized for industrial automation system environments
7. Technical Specifications
Note: Some parameters vary depending on system configuration and revision level.
| Parameter | Specification |
|---|---|
| Model | PW484-51 |
| Input Type | AC input power module |
| Input Voltage | 220–240 V AC |
| Input Frequency | 50/60 Hz |
| Output Type | Regulated DC system output |
| Output Power | Configuration-based |
| Efficiency | High-efficiency industrial design |
| Protection Functions | Overvoltage / Overcurrent / Thermal protection |
| Redundancy Support | Supported |
| Installation Type | Rack-mounted plug-in module |
| Cooling Method | Cabinet airflow / forced ventilation |
| Operating Temperature | Industrial environment rated |
8. Mechanical Dimensions and Weight
| Item | Specification |
|---|---|
| Dimensions (W × H × D) | 146.5 × 199.5 × 49.7 mm |
| Weight | approx. 1.0 kg |
| Mounting Type | Rack plug-in module |
| Housing Material | Industrial-grade metal enclosure |
9. Related Models (Same Series / Similar Function)
| Model | Description | Key Parameters |
|---|---|---|
| PW484-11 | DC input standard module | 24 V DC input / rack type / redundancy supported |
| PW484-10 | DC input base module | System DC input / industrial rack power |
| PW482-11 | AC input standard module | AC input / rack power system |
| PW482-51 | High-voltage AC module | 220–240 V AC input / system module |
| PW481-11 | Lower capacity AC module | AC input / compact rack design |
10. Popular Models (Same System Ecosystem)
| Model | Function | Key Parameters |
|---|---|---|
| CP451 | Central processing module | Rack CPU / system controller / industrial automation core |
| CP461 | Advanced control processor | High-performance process control unit |
| AI835 | Analog input module | Multi-channel signal acquisition |
| AO845 | Analog output module | Process control output module |
| DI840 | Digital input module | Discrete signal acquisition module |
| DO840 | Digital output module | Relay/output control module |
11. Engineering Notes
The PW484-51 is designed for integration into modular rack-based industrial automation systems. It is not a standalone device, and its performance depends on system-level architecture.
Key engineering considerations include:
- Load distribution across multiple power modules
- Proper thermal management inside control cabinets
- Redundant configuration strategy for high availability
- Electrical grounding and noise suppression design
In critical applications, multiple modules are often deployed in parallel to ensure continuous operation.
12. Conclusion
The PW484-51 is a robust industrial AC power supply module designed for stable integration into automation control systems. Its modular architecture, redundancy capability, and industrial-grade design make it suitable for continuous operation in demanding industrial environments where reliability and power stability are essential.