



The Yokogawa S9343FA is a Field I/O (FIO) power supply module designed for CENTUM VP and ProSafe-RS distributed control systems, delivering stable DC power to I/O nodes and ensuring uninterrupted operation of field control modules.
As a core infrastructure component, the S9343FA plays a critical role in maintaining system stability, power redundancy capability, and noise-free electrical distribution across industrial automation cabinets. It is widely used in oil & gas, petrochemical plants, power generation facilities, and large-scale process control environments, where continuous uptime is essential.
Technical Specifications (Industrial FIO Power Distribution Module)
| Parameter | Details |
|---|---|
| Model | S9343FA |
| Brand | Yokogawa |
| Product Type | FIO Power Supply Module |
| System Platform | CENTUM VP / ProSafe-RS |
| Input Voltage | 100–240 V AC (wide range) |
| Output Voltage | 5 V DC / 24 V DC (system dependent rails) |
| Output Stability | High-precision regulated DC output |
| Power Capacity | Industrial-grade load support for multiple I/O modules |
| Protection Functions | Overcurrent / overvoltage / thermal protection |
| Efficiency | High-efficiency switching design |
| Redundancy Support | Yes (dual power configuration supported) |
| Cooling Method | Natural convection (fanless design) |
| Installation Type | FIO node baseplate mounting |
Physical Dimensions & Weight
| Item | Specification |
|---|---|
| Dimensions (W × H × D) | 130 × 100 × 42 mm |
| Weight | ~0.40 kg |
Recommended Related Models (System Power & Control Expansion)
- Yokogawa NFSBT02 – FIO baseplate/backplane module
- Yokogawa AAI143 – Analog input module
- Yokogawa ADV161 – Digital input module
- Yokogawa ADV551 – Digital output module
- Yokogawa CP451 – Controller module
Popular Yokogawa Models (Core Automation Ecosystem)
- Yokogawa PW482 – Power supply module (DCS platform)
- Yokogawa AAI543 – Analog I/O module
- Yokogawa SB401 – Bus interface module
- Yokogawa ADV551 – Digital output module
- Yokogawa CP451 – Process controller module