DW15 Universal Air Circuit Breaker / Low-Voltage Primary Components

1. Product Overview

This product is a high-capacity low-voltage air circuit breaker assembly designed for AC low-voltage power distribution systems. It integrates the DW15 universal air circuit breaker and other essential low-voltage primary components inside a metal switchgear cabinet. The assembly is suitable for industrial plants, large commercial buildings, data centers, power substations, photovoltaic power stations and energy storage systems.

2. Core Components

• DW15 Universal Air Circuit Breaker

Provides main circuit protection, overload protection, short-circuit protection and reliable breaking performance for high-capacity distribution systems.

• Main Contacts

Ensure stable conduction and reliable disconnection under high current conditions.

• Arc Extinguishing Chamber

Rapidly extinguishes the electric arc during breaking and reduces contact ablation.

• Operating Mechanism

Supports manual or motorized closing, opening and energy storage operations.

• Current Transformers (CTs)

Convert primary current into standard secondary signals for metering, monitoring and protection control.

• Main Busbars

Distribute high current to multiple outgoing circuits with high current-carrying capacity.

• PE Busbar

Provides reliable earthing protection and reduces electrical safety risks.

3. Key Features

• High current-carrying capacity
• Reliable overload and short-circuit protection
• Stable framework structure
• Clear internal layout for inspection and maintenance
• Suitable for high-power distribution systems
• Optional manual or motorized operation
• Customizable configuration according to project requirements

4. Technical Specifications

5. Applications

• Industrial main distribution rooms
• Large commercial building power supply systems
• Data center low-voltage distribution
• Photovoltaic power stations
• Energy storage systems
• Power substations
• Heavy equipment control rooms

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
• Dry and well-ventilated environment

7. Packing & Delivery

• Standard export wooden case
• Suitable for sea freight, air freight and land transportation
• Custom packing options available based on order quantity