




Product Overview
The ABB Bailey IEPAS02 Power Module is a robust supply unit engineered to deliver stable and regulated electrical power within ABB Bailey Infi 90 Distributed Control Systems (DCS). Serving as the primary power source for mounted controller, I/O, and communication modules, the IEPAS02 ensures reliable system performance and long‑term operational integrity under industrial conditions. Its design emphasizes consistent output, protection features, and smooth integration into Bailey rack architectures, making it a core component for dependable automation systems.
Technical Specifications & Physical Details
| Specification | Details |
|---|
| Model Number | IEPAS02 |
| Module Type | Power Supply Module |
| System Compatibility | ABB Bailey Infi 90 DCS and related module platforms |
| Input Voltage | 120/240 VAC or 24/48 VDC (system dependent) |
| Output Voltages | +5 VDC, +12 VDC, +15 VDC, +24 VDC (regulated) |
| Rated Output Current | Designed to support full rack power demands |
| Mounting Type | Module slot – installed in mounting units (e.g., IEMMU01/IEMMU21) |
| Operating Temperature | 0 °C to 60 °C |
| Storage Temperature | −40 °C to +85 °C |
| Humidity Range | Up to 95 % non‑condensing |
| Dimensions (H × W × D) | Approx. 180 mm × 100 mm × 230 mm |
| Weight | Approx. 2.0 kg |
Industrial Applications
The IEPAS02 Power Module is a cornerstone in automation systems requiring reliable electrical power distribution:
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Distributed Control Systems (DCS) in process and manufacturing facilities
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Control racks in oil & gas, petrochemical, and refining industries
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Water and wastewater automation control panels
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Power generation and utility automation systems
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Continuous production lines and heavy industrial automation
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Automation retrofit projects involving legacy Bailey Infi 90 installations
By providing stable DC power, the IEPAS02 enhances reliability and reduces risk of electrical disturbances that can impact sensitive control modules.
Advantages & Key Features
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Stable Multi‑Voltage Outputs – Delivers regulated +5V, +12V, +15V, and +24V for a range of control and I/O modules
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Industrial‑Grade Construction – Built for continuous operation in demanding environments
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Seamless System Integration – Designed to plug directly into Bailey mounting chassis with standardized slot interfaces
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Protection Features – Internal safeguards against overload, short circuit, and thermal stress
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Ease of Service – Modular replacement supports quick maintenance
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Efficient Power Distribution – Delivers clean regulated power across the rack backplane
These strengths make the IEPAS02 Power Module a reliable choice for engineers seeking robust and scalable control system power infrastructure.