Product Overview
The ABB Bailey PHARPS21010000 Power Supply Module is a compact and reliable unit designed for ABB Bailey Infi 90 distributed control systems. As part of the Modular Power System III (MPS III) family, it delivers regulated DC power to essential control components such as processor modules, I/O interfaces, and communication boards.
Built for legacy industrial automation environments, this module emphasizes stability, protection, and long-term operational consistency. It is commonly used in power-critical applications where system uptime and electrical reliability are non-negotiable.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | ABB (Bailey Controls) |
| Model | PHARPS21010000 |
| Module Type | Power Supply Module |
| System Compatibility | ABB Bailey Infi 90 / Net 90 |
| Output Voltages | +5V, ±15V, +24V DC |
| Output Power | Approx. 100–150W |
| Input Voltage Range | 9–36V DC (system dependent configuration) |
| Efficiency | ~80% typical |
| Protection Features | Overcurrent, overvoltage, thermal protection |
| Mounting Type | Rack-mounted / modular chassis |
| Operating Temperature | 0°C to 50°C |
| Dimensions (L×W×H) | Approx. 216 × 89 × 445 mm |
| Weight | Approx. 1.0–1.2 kg |
Industrial Applications
The PHARPS21010000 is widely used in legacy and hybrid automation systems where stable DC power distribution is required:
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Oil and gas production control systems
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Petrochemical and refining automation platforms
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Power generation plant control cabinets
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Water treatment and utility infrastructure systems
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Industrial DCS maintenance and upgrade projects
Its compact design makes it particularly suitable for retrofit projects where cabinet space is limited but reliability requirements remain high.
Key Advantages
The PHARPS21010000 is valued for its compact integration design, allowing it to fit seamlessly into ABB Bailey rack systems without major system modifications. This reduces installation complexity and downtime during maintenance.
Another major advantage is its stable multi-rail output capability, supplying multiple voltage levels required by mixed I/O and logic systems. This reduces the need for separate power units and improves cabinet efficiency.
The module also features industrial-grade protection circuitry, helping safeguard sensitive control electronics from electrical fluctuations, short circuits, and thermal stress—critical in continuous-process environments.
Technical FAQs
1. What is the main function of this module?
It provides regulated DC power for ABB Bailey Infi 90 system components.
2. What output voltages does it provide?
Typically +5V, ±15V, and +24V DC outputs.
3. Is it still widely used today?
Yes, mainly in legacy ABB DCS systems and maintenance projects.
4. What systems is it compatible with?
ABB Bailey Infi 90 and Net 90 platforms.
5. What is its typical power range?
Approximately 100–150W depending on configuration.
6. What protection features are included?
Overvoltage, overcurrent, and thermal protection systems.
7. How is it installed?
Mounted in a rack or modular power chassis system.
8. Is it suitable for continuous operation?
Yes, it is designed for 24/7 industrial environments.
9. What is its approximate weight?
Around 1.0–1.2 kg depending on configuration.
10. What industries use it most?
Power generation, oil & gas, chemical processing, and water treatment.
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