Schneider AEG 6390-042.708853
Overview
Schneider AEG 6390-042.708853 is a low-voltage switchgear assembly belonging to the Schneider AEG MLS (Modular Low-voltage Switchgear) series. Adopting a modular design, it is suitable for primary and secondary power distribution in scenarios like power distribution networks, industrial plants and commercial buildings. Certified to IEC/EN standards, it features high reliability and safety, enabling quick on-site assembly and maintenance.
Main Parameters
Rated Voltage: 400V AC (3-phase 4-wire)Rated Current: 630A (400A, 800A optional)Rated Short-circuit Current: 35kA (IEC 60947-2)Rated Power: ≤250kW (depending on specific module configuration)Protection Class: IP20 (indoor) / IP54 (dustproof and waterproof)Operating Temperature Range: -25°C to +55°CStandards & Certifications: IEC 60204-1, IEC 60947-1/2, EN 60204-1, CE Marking
Product Features
- Modular Structure: Two layout options (rear-mounted or top-mounted busbar) for flexible selection based on on-site space conditions.
- High Integration: Functional modules including circuit breakers, contactors, relay protection, indicator lights and terminal blocks are pre-assembled in a single cabinet, requiring only on-site wiring.
- Quick Assembly: Fixed with standard bolts (4×M16, 8×M8) and snap-fit connectors, enabling on-site assembly completion within 1-2 hours.
- Easy Maintenance: Modular disassembly, visual indicator lights and reserved access doors facilitate daily inspection and component replacement.
- Safe & Reliable: Compliant with IEC 60947 series safety requirements, with multiple protections against overload, short circuit, undervoltage and overvoltage.
- Flexible Expansion: Supports subsequent addition of busbars, distribution units and communication modules (Modbus, Profibus) to meet intelligent upgrading needs.

Structure & Composition
- Cabinet Body: Stamped from cold-rolled steel plate with anti-corrosion paint coating on the surface; base feet can be fixed by welding or bolting.
- Busbar System: Copper or aluminum busbars providing main current path, with rear-mounted (MLS) or top-mounted (MLS-600) options available.
- Circuit Breaker Unit: Installed on both sides of busbars to provide main protection function.
- Contactor/Relay Protection Unit: Used for control circuits and realizing automatic protection.
- Terminal Blocks & Junction Boxes: Distribute secondary circuits with protective covers equipped.
- Indicator Lights & Display Panel: Real-time display of operation status and fault alerts.
- Fittings & Accessories: Including grounding bars, supports, cabinet locks and ventilation holes.
Application Fields
- Industrial Power Distribution: Main distribution cabinets for large manufacturing workshops and automated production lines.
- Commercial Buildings: Power distribution centers for office buildings and shopping malls.
- Public Facilities: Power distribution systems for hospitals, schools, airports and other public buildings.
- Energy & Infrastructure: Power distribution automation devices for substations and power distribution networks.
- Intelligent Transformation: Cooperate with SCADA and MES systems to realize remote monitoring and fault diagnosis.
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