Schneider AEG MA-P884-001
Overview
MA-P884-001 is a power supply module under the Schneider AEG product line, specially designed for installation in remote I/O master-slave racks (H8XX-100/103/107, H8XX-209). It provides stable DC power supply for internal rack components including I/Os, CPUs and communication boards, serving as a critical power supply unit in low-voltage distribution systems.
Key Technical Specifications
| Item | Specification |
|---|---|
| Model | MA-P884-001 |
| Input Voltage | 120V / 220V AC (Single-phase) |
| Compatible Racks | H8XX-100, H8XX-103, H8XX-107, H8XX-209 |
| Slot Width | 1.0 U (Single slot) |
| Output Voltage | +5.0V, +4.3V, -5.0V (Optional) |
| Output Current | +5.0V ≈ 5A, +4.3V ≈ 10.1A, -5.0V ≈ 0.5A |
| Power | ≤ 45W (Depends on output combination) |
| Operating Temperature | -25°C – +55°C |
| Protection Grade | IP20 (Internal) / IP54 (Enclosure) |
| Mounting Method | Wall-mounted, frame-mounted or base-fixed (Bolted or welded) |
| Dimensions | Width 300mm, Depth 400mm, Height 200mm – 800mm (Stackable) |
Product Features
- Modular Design: Single-slot width enables flexible stacking and expansion inside the rack.
- Multi-voltage Output: Delivers three DC voltages (+5V, +4.3V, -5V) to meet power supply requirements of different I/O cards.
- High Reliability: Complies with international low-voltage distribution standards such as IEC 60364 and EN 50173, equipped with 10kA short-circuit protection and overload protection.
- Wide Temperature Range: Operates stably from -25°C to +55°C, suitable for harsh industrial field environments.
- Easy Maintenance: IP54-rated enclosure with quickly replaceable internal components to minimize downtime.

Structure & Components
- Power Transformer: Converts AC input to required low-voltage DC.
- Rectifier/Filter Circuit: Provides regulated DC output with low ripple.
- Output Terminal Block: Corresponding to +5V, +4.3V and -5V respectively, equipped with screw-type terminals.
- Protection Unit: Includes fuse, thermal relay and short-circuit detection circuit.
- Mounting Bracket: Compatible with wall-mounted, frame-mounted and base-fixed installation methods.
Typical Application Fields
- Industrial Automation: Power supply for remote I/Os in assembly lines, packaging machinery and CNC machine tools.
- Process Control: Power supply for fieldbus (Modbus, Profibus) modules in chemical, petroleum and energy stations.
- Building Distribution: Sub-distribution cabinets and floor control systems in large-scale buildings.
- Transportation Facilities: Power supply for control cabinets in rail transit and airport ground equipment.
Installation & Maintenance Notes
- Pre-installation Check: Confirm rack model and slot width match; verify input power phase and voltage.
- Fixing Method: Adopt M16×4 bolts or welded base to ensure vibration resistance.
- Wiring: Use terminals compliant with IEC 60204 standard for reliable contact and easy maintenance.
- Heat Dissipation: Keep vents unobstructed; install heat sinks or fans if necessary.
- Regular Inspection: Check output voltage, ripple and protection device functions every 12 months; replace the module promptly if abnormalities are found.
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