



Product Introduction
The Yokogawa PW441-10 Power Module is a high-reliability industrial power supply unit designed to deliver stable and clean DC power for Yokogawa distributed control systems (DCS) and STARDOM/FCN platforms. It serves as a core infrastructure component, ensuring continuous and safe operation of CPUs, I/O modules, and communication units within control cabinets.
Engineered for demanding process industries, this module emphasizes power stability, redundancy capability, and long-term operational endurance—making it a foundational element in mission-critical automation systems.
Technical Specifications
| Parameter | Specification |
|---|
| Model | PW441-10 |
| Module Type | Power Supply Module |
| Input Voltage | 100–240 V AC (auto switching) |
| Input Frequency | 50/60 Hz |
| Output Voltage | +5 V DC, ±15 V DC, +24 V DC (system dependent) |
| Output Power | ~80–100 W |
| Output Current | Up to 10 A (depending on rail) |
| Efficiency | >80% |
| Protection Functions | Overvoltage, overcurrent, short circuit, overtemperature |
| Redundancy Support | 1+1 redundant configuration supported |
| Cooling Method | Natural convection |
| Operating Temperature | 0°C to +55°C |
| Installation Type | Rack-mounted (FCS / I/O cabinet) |
| Dimensions (H×W×D) | 105 × 136 × 19 mm |
| Weight | Approx. 2.2–5 kg (variant dependent) |
Industrial Applications
The PW441-10 is widely used in industries where uninterrupted power supply is critical to system stability and safety:
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Oil & gas refining and upstream operations
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Petrochemical processing plants
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Power generation facilities (thermal, hydro, nuclear)
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Chemical and pharmaceutical manufacturing
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Large-scale industrial automation systems
Its role as a central power backbone ensures continuous operation of control and monitoring systems in complex environments.
Technical FAQs
1. What is the main function of the PW441-10?
It converts AC input power into stable DC voltages required by Yokogawa control system modules.
2. What systems is it used in?
It is commonly used in CENTUM VP, CENTUM CS, and STARDOM-based systems.
3. Does it support redundancy?
Yes, it supports 1+1 redundant configuration for high availability systems.
4. What output voltages does it provide?
Typically +5 V, ±15 V, and +24 V DC depending on system configuration.
5. What is the input voltage range?
It supports 100–240 V AC with auto switching capability.
6. Is it suitable for harsh environments?
Yes, it is designed for industrial environments with vibration and electrical noise.
7. What protection features are included?
Overvoltage, overcurrent, short circuit, and thermal protection are integrated.
8. How is it installed?
It is rack-mounted within a control cabinet or Field Control Station (FCS).
9. Can it run continuously?
Yes, it is designed for continuous 24/7 operation in industrial systems.
10. Why is it important in a DCS system?
Because it ensures stable power delivery to all critical control modules, maintaining overall system reliability.