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- Yokogawa
- F3PU20-0S
- Power Supply
- Japan
- 58 x 100 x 83.2 mm
- 0.32 kg
- Xiamen, China
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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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We provide 7*24 hours service to our customers. We will be there whenever you need us.
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All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The Yokogawa F3PU20-0S is a high-capacity AC Power Supply Module for the FA-M3 PLC system. It converts wide-range AC input (100–240 V) into a stable 5 V DC backplane supply, providing reliable power for CPU, I/O modules, and communication modules in larger FA-M3 configurations.
The “S” version represents a mechanically revised model of the F3PU20 series, designed for improved installation compatibility while maintaining the same electrical performance as the -0N variant.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Yokogawa |
| Model | F3PU20-0S |
| Product Type | PLC Power Supply Module |
| System Compatibility | FA-M3 PLC system |
| Input Voltage | 100–240 V AC (single-phase, 50/60 Hz) |
| Input Range | 85–264 V AC |
| Output Voltage | 5 V DC |
| Output Current | 4.3 A |
| Output Power | High-capacity supply for expanded systems |
| Power Consumption | ~85 VA |
| Inrush Current | Up to 45 A (at 240 V AC) |
| Allowable Power Failure | ~20 ms |
| Protection | Overcurrent, overvoltage, internal protection |
| Insulation Voltage | 1500 V AC (1 minute) |
| Cooling Method | Natural air cooling |
| Dimensions | 58 × 100 × 83.2 mm |
| Weight | 0.32 kg |
Function and Working Principle
The F3PU20-0S serves as the primary power conversion unit for FA-M3 PLC systems with higher load requirements.
Working Principle
- AC mains power (100–240 V) is supplied to the module
- Internal rectifier converts AC → DC
- Switching regulator stabilizes output at 5 V DC
- Stable power is distributed through the FA-M3 backplane
- All connected modules receive regulated and protected power
AC (100–240V)→Rectification→Switching Regulation→5V DC (4.3A Output)AC\,(100–240V) \rightarrow Rectification \rightarrow Switching\,Regulation \rightarrow 5V\,DC\,(4.3A\,Output)
Key Functions
- Provides regulated 5 V DC power for FA-M3 systems
- Supports high-load rack configurations
- Supplies CPU, I/O, and communication modules
- Wide-range AC input (100–240 V)
- Built-in protection (overvoltage, overcurrent)
- Maintains stable operation during short power interruptions
- Designed for continuous industrial duty operation
System Role
The module acts as the central power backbone in FA-M3 systems:
AC Power → F3PU20-0S → FA-M3 Backplane → All System Modules
It is commonly used in:
- Medium to large automation systems
- Expanded PLC rack configurations
- Multi-module industrial control panels
- High-density I/O systems
Installation Guidelines
- Install in compatible FA-M3 base unit
- Ensure correct AC input wiring (100–240 V)
- Maintain proper grounding for safety
- Do not exceed 4.3 A output limit
- Provide adequate ventilation in control cabinet
- Turn off system power before installation or replacement
- Confirm compatibility with rack type (F3BU series)
Compatible Systems
- Yokogawa FA-M3 PLC base units
- CPU modules
- Digital and analog I/O modules
- Communication modules (Ethernet, fieldbus, etc.)
- Expanded rack systems
Key Advantages
- High-capacity 5 V / 4.3 A output
- Supports large-scale FA-M3 configurations
- Wide AC input range (100–240 V)
- Stable industrial-grade performance
- Compact design for high-power class
- Built-in protection and fault handling
- Suitable for continuous industrial operation
Technical FAQs
Q1: What is the main function of the F3PU20-0S?
It supplies high-capacity 5 V DC power to FA-M3 PLC systems.
Q2: What is the difference between F3PU20-0S and F3PU20-0N?
The “S” version has mechanical/installation updates, while electrical performance remains the same.
Q3: What is its output current?
It provides 4.3 A at 5 V DC.
Q4: What type of systems use this module?
Medium to large FA-M3 PLC rack systems with higher power demand.
Conclusion
The Yokogawa F3PU20-0S Power Supply Module is a reliable high-capacity power solution for FA-M3 PLC systems. With its 4.3 A output, wide voltage range, and industrial protection features, it is ideal for large and expanded automation systems requiring stable and continuous power distribution.