This power module converts AC mains voltage into stable DC outputs for critical automation components. It supplies clean, regulated power to I/O racks, controllers, and field instrumentation. The IEPAS02 delivers dual isolated outputs for redundant system configurations.
Core Electrical Specifications
The module accepts an input voltage range of 85–264 V AC or 110–370 V DC. It provides two galvanically isolated outputs at 24 V DC and 5 V DC respectively. The 24 V output delivers up to 10 A continuously for powering field devices. Furthermore, the 5 V output supplies 8 A specifically for logic circuits and backplane communications. The unit achieves a typical efficiency rating of 88% across its entire load spectrum.
Connectivity and Protection Features
The front panel houses screw-type terminal blocks for all AC input and DC output connections. These terminals accept wire gauges from 0.5 to 4.0 mm² for secure termination. Additionally, the IEPAS02 includes a green LED for power-good indication and a red fault indicator. A remote inhibit input allows external controllers to enable or disable the outputs. The module also provides an active current share pin for parallel operation with identical units.
Energy Storage and Ride-Through Capability
An internal bank of electrolytic capacitors stores 150 joules of energy for hold-up requirements. This storage maintains full output regulation for 30 milliseconds following an AC dropout. Consequently, the module prevents control system resets during momentary power disturbances. The unit also employs soft-start circuitry to limit inrush current to 15 A peak.
Thermal Management and Mechanical Design
The power module uses a die-cast aluminum heatsink with a built-in temperature-controlled fan. This cooling system maintains component temperatures below 85°C under full load conditions. The unit measures 27.0 x 14.5 x 11.0 centimeters and weighs approximately 2.7 kilograms. Moreover, the IEPAS02 mounts directly onto standard DIN rails or horizontally within 19-inch racks.
Technical Parameters Summary
| Parameter | Specification |
|---|---|
| Model | ABB IEPAS02 |
| AC Input Range | 85–264 V AC, 47–63 Hz |
| DC Input Range | 110–370 V DC |
| Output 1 | 24 V DC / 10 A |
| Output 2 | 5 V DC / 8 A |
| Total Power | 280 W |
| Efficiency | 88% (typical) |
| Hold-up Time | 30 ms at full load |
| Storage Energy | 150 Joules (capacitor bank) |
| Inrush Current Limiting | 15 A peak, soft-start |
| Terminals | Screw-type, 0.5–4.0 mm² |
| Status Indicators | 1 x green (OK), 1 x red (fault) |
| Remote Inhibit | 5–30 V DC input |
| Current Sharing | Active pin for parallel use |
| Cooling | Temperature-controlled fan |
| Dimensions (W x H x D) | 27.0 x 14.5 x 11.0 cm |
| Weight | 2.7 kg |
| Operating Temperature | -10°C to +55°C |
| Certifications | CE, UL 61010, ATEX |
System Integration and Application Areas
This power module integrates seamlessly with ABB’s AC 800M controllers and S800 I/O systems. It supports hot-swappable installation for minimal downtime during maintenance procedures. The unit’s parallel operation capability enables N+1 redundancy for critical process applications. Industries such as petrochemical, power generation, and pharmaceutical manufacturing rely on its robust performance.
Summary
The IEPAS02 delivers dependable, high-efficiency power conversion for demanding automation environments. Its dual outputs, extended hold-up time, and comprehensive protection features ensure system stability. This module represents a trustworthy power backbone for any industrial control installation.
Details
| Weight | 2.7 kg |
|---|---|
| Dimensions | 270 × 145 × 110 mm |
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