Technical Specifications

• Rated Voltage: 400V AC (50/60 Hz) .
• Rated Current: 125A .
• Breaking Capacity: High short-circuit breaking capability to interrupt fault currents rapidly, ensuring grid stability .
• Arc Extinguishing Technology: Advanced arc extinguishing chamber design to limit arc duration and reduce equipment damage .
• Protection Class: Isolated (Class II) with IP31 enclosure rating, providing protection against solid objects ≥2.5 mm and limited dust ingress .
• Operating Temperature: -10°C to +70°C (ambient), with thermal stability under extreme conditions .
• Dimensions: 1134 mm (height) × 560 mm (width) × 120 mm (depth), suitable for wall-mounted or flush-mount installations .

Functional Features

1. Comprehensive Protection:
   • Overload protection to prevent equipment damage from prolonged overcurrent.
   • Short-circuit protection with rapid tripping to isolate faults within milliseconds.
   • Under-voltage protection to maintain stable power supply quality .
2. Reliable Operation:
   • Robust mechanical design with a high cycle life (≥10,000 operations) and resistance to environmental stressors like vibration and humidity .
   • Manual and remote control options for flexible integration into smart grid systems .
3. Safety Compliance:
   • Compliant with international standards (e.g., IEC 61439-3, EN 61439-1) for low-voltage switchgear and control gear .
   • Double-insulated construction (Class II) to minimize electrical shock risks .
4. Maintenance Efficiency:
   • Modular design allows easy replacement of components (e.g., arc extinguishers, terminals) without system downtime .
   • Built-in diagnostic indicators for real-time status monitoring (e.g., trip status, thermal overload) .

Application Scenarios

1. Power Generation & Transmission:
   • Used in substations and power plants to control and protect high-voltage distribution lines, ensuring stable energy transmission .
2. Industrial Facilities:
   • Critical for motor control centers (MCCs) in manufacturing plants, mining, and chemical industries to safeguard motors, transformers, and other heavy machinery .
3. Commercial & Residential Buildings:
   • Installed in distribution boards for lighting, HVAC systems, and elevators, providing reliable power management in shopping malls, offices, and apartments .
4. Renewable Energy Systems:
   • Integrates with solar and wind farms to protect inverters and energy storage systems from voltage fluctuations and surges .
5. Transportation Infrastructure:
   • Used in electric vehicle (EV) charging stations and railway substations to ensure safe and efficient power distribution .

Key Benefits

• Enhanced Grid Stability: Reduces downtime and equipment failures through rapid fault detection and isolation .
• Cost Efficiency: Long lifespan and low maintenance requirements lower total ownership costs .
• Flexibility: Adaptable to diverse voltage and current requirements across industrial, commercial, and utility sectors .
• Safety Assurance: Compliance with global safety standards minimizes operational risks .

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