OEM Vacuum Interrupter Circuit Breaker Supplier for Electrical Networks

Sunway Hanguang Electric Manufacturing Limited, a professional manufacturer and supplier of high-voltage electrical equipment based in China, has focused on vacuum interrupter circuit breakers R&D, production and sales since 1968. The company’s factory covers 40,000 square meters with advanced equipment, ensuring stable product quality. Its vacuum interrupter circuit breakers are classified by multiple dimensions to meet diverse needs, as follows:

1. Classification by Voltage Level

Sunway Hanguang’s products cover 0.66kV-40.5kV, complying with GB, IEC and ANSI standards, divided into three categories:

- Low-Voltage (0.66kV-1kV): Used in low-voltage power distribution of industrial, residential and commercial scenarios, featuring miniaturization and easy installation.

- Medium-Voltage (12kV-24kV): The most widely used type, applicable to power grids, metallurgy, petroleum and chemical industries, adopting one-time brazing to reduce air leakage.

- High-Voltage (36kV-40.5kV): For power plants and high-voltage substations, with strong breaking capacity and high safety.

2. Classification by Application Scenario

Divided into indoor and outdoor types based on application environment and requirements:

- Indoor Type: Installed in indoor power distribution cabinets and ring main units, compact with good insulation, matched with embedded poles to save space.

- Outdoor Type: Suitable for outdoor power stations, railways and mines, with waterproof, dustproof and anti-corrosion design, working stably in extreme weather.

3. Classification by Core Function

According to functional positioning in power systems, divided into three types:

- Protective Type: Provides overcurrent, short circuit and overload protection, quickly cutting off fault current to avoid fault expansion.

- Control Type: Controls on-off of motors and transformers, with frequent switching capacity and remote automatic operation.

- Integrated Type: Combines control and protection functions, integrated with ring main units, suitable for intelligent power distribution systems.

4. Classification by Structural Type

Divided into two types based on structural design:

- Fixed Type: Fixed in power distribution cabinets, simple and low-cost, suitable for small and medium-sized power distribution rooms with low maintenance frequency.

- Drawer-Type: Drawable for easy maintenance without power failure, suitable for large-scale power distribution systems requiring high maintainability.

In summary, Sunway Hanguang’s vacuum interrupter circuit breakers have complete classifications to meet diverse needs. As a professional manufacturer and supplier in China, it relies on advanced technology and strict quality control to provide high-quality products globally, with its factory having an annual output of 350,000 vacuum interrupters.