MT Universal Air Circuit Breaker
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Product Details
MT Universal Air Circuit Breaker / Low-Voltage Primary Components
1. Product Overview
This product is a fixed-type low-voltage switchgear assembly designed for low-voltage power distribution systems. It integrates the MT universal air circuit breaker and other essential low-voltage primary components into a compact, reliable cabinet solution. It is commonly used in industrial plants, commercial buildings, residential complexes, data centers, photovoltaic power stations and other power distribution scenarios.
2. Core Components
- MT Universal Air Circuit Breaker
Provides main circuit protection, overload protection, short-circuit protection and reliable breaking performance.
- Main Busbars
Distribute incoming power to each outgoing circuit with high current-carrying capacity.
- Current Transformers (CTs)
Convert primary current into standard secondary signals for metering, monitoring and protection.
- Energy Meter
Measures active energy, reactive energy, voltage, current and power consumption data.
- Terminal Blocks
Offer safe and organized connections for control, metering and secondary circuits.
- PE Busbar
Ensures reliable earthing protection and reduces electrical safety risks.
3. Key Features
- High current carrying capacity
- Reliable overcurrent and short-circuit protection
- Clear internal layout for easy inspection and maintenance
- Modular structure for flexible system configuration
- Suitable for indoor low-voltage distribution systems
- Designed for industrial and commercial power management
4. Technical Specifications
| Item | Specification |
| Product Type | Low-Voltage Switchgear Assembly |
| Main Protection Device | MT Universal Air Circuit Breaker |
| Rated Voltage | 400V AC |
| Frequency | 50 / 60 Hz |
| System | Three-Phase Four-Wire |
| Protection Class | IP30 (typical) |
| Installation | Indoor Floor-Standing |
| Application | Power Distribution, Metering, Protection, Monitoring |
5. Applications
- Factory main distribution rooms
- Commercial building power supply systems
- Residential community substations
- Data center low-voltage distribution
- Photovoltaic and energy storage systems
- Industrial automation projects
6. Usage Environment
- Indoor installation
- Ambient temperature: -5°C to +40°C
- Altitude: ≤ 2000 m
- Relative humidity: ≤ 50% at 40°C, ≤ 90% at 20°C
- No corrosive gases, no conductive dust, no strong vibration
- Well-ventilated and dry environment
7. Packing & Delivery
- Standard export wooden case
- Suitable for sea freight, air freight and land transportation
- Custom packing requirements can be discussed based on order quantity
