Siemens A5E30484420 Simatic IPC Redundant Power Supply

The Siemens A5E30484420 is a redundant power supply unit designed for Simatic Industrial PCs (IPC), specifically for the IPC3000, IPC4000, and IPC6000 series. It features dual independent AC inputs (100–240V, 50/60Hz) and provides N+1 redundancy to ensure continuous operation in critical automation environments. The module is hot-swappable, allowing replacement without shutting down the host system.

Electrical Specifications

Each power supply channel accepts a nominal voltage of 100–240V AC (range 85–264V) with a frequency of 47–63 Hz. The maximum input current per channel is 5A. Output power: 300W continuous (combined from both channels). Output voltages: +12V (25A), +5V (15A), +3.3V (10A), and a standby +5V (2A). Efficiency is rated at 85% typical at full load. The unit includes active power factor correction (PFC) meeting EN 61000-3-2.

Redundancy Features

The A5E30484420 operates in 1+1 parallel redundancy mode. If one AC input fails or one internal power converter fails, the other continues to supply the full load without interruption. An alarm relay (dry contact) signals a failure to the IPC or external monitoring system. LED indicators on the front panel: Input 1 OK (green), Input 2 OK (green), Output OK (green), Alarm (yellow).

Mechanical and Environmental

Dimensions (W x H x D): 82 mm x 130 mm x 200 mm (fits standard Simatic IPC chassis). Weight: 1.2 kg. Operating temperature: 0 to 55°C; storage: -25 to 70°C. Humidity: 5% to 95% non-condensing. The housing is metal with a ventilated cover and a 40mm fan (variable speed, noise < 35 dBA). Protection class: IP20. MTBF > 200,000 hours at 40°C.

Connections and Cabling

Input connectors: two standard IEC C14 inlets (male) on the rear panel, each with a 5x20mm fuse (6.3A, time-lag). Output connector: 24-pin ATX-style (compatible with Simatic IPC motherboard) plus a 4-pin auxiliary +12V CPU connector. A separate 4-pin connector provides the alarm signal. The unit also includes two SATA power connectors for drives.

Protection and Safety

The power supply includes overvoltage (OVP), overcurrent (OCP), and short-circuit protection on all outputs. The OVP thresholds: +12V at 13.8V, +5V at 5.8V, +3.3V at 3.8V. Thermal shutdown activates at 85°C internal. The unit complies with UL 60950-1, CSA C22.2, and EN 60950-1. It also meets EMI Class B (EN 55022) and has low leakage current (< 0.5mA).

Compatibility

Designed for Simatic IPC models: IPC347E, IPC427C, IPC477C, IPC547G, IPC647C, IPC847C. Can also be used in other industrial computers that accept a standard redundant ATX power supply with 300W rating and 1+1 redundancy logic. The module communicates with the IPC motherboard via a PS-ON signal and Power Good (PG) signal (100–500 ms delay).

Installation and Maintenance

The unit slides into the dedicated power supply bay of the Simatic IPC chassis and is secured by two thumbscrews. Hot-swap procedure: remove the failed unit by loosening the screws and pulling the handle; insert the replacement and push until it clicks. No tools required. The fan is field replaceable (part number A5E30484421). Recommended filter cleaning every 6 months.

Typical Applications

Used in 24/7 manufacturing lines, SCADA servers, data loggers, and medical imaging systems where power interruption is unacceptable. The redundancy feature is essential for unmanned or remote installations.

Ordering and Documentation

Order number: A5E30484420. The power supply is shipped with a 2m C13 power cord (EU or US type depending on region) and a set of stickers for labeling. Manual: Siemens IPC Power Supply Manual (A5E30484420-AA). RoHS and REACH compliant.