12kV/24kV Eco-Friendly Air Insulated Vacuum Load Break Switch

The 12kV/24kV Eco-Friendly Air Insulated Vacuum Load Break Switch is designed for medium-voltage power distribution systems that require reliable load switching, electrical isolation, and environmentally responsible insulation technology.

Developed by Zhejiang SanGao Electric Co., Ltd., this switch combines air insulation, vacuum arc interruption technology, mechanical interlocking, and a straightforward operating structure. It is suitable for medium-voltage indoor and outdoor distribution applications across utilities, renewable energy, industrial facilities, and infrastructure projects.

What is a 12kV/24kV air-insulated vacuum load break switch?

Load break switches are used to make and break circuits under specified load conditions and provide an isolation position that clearly indicates the status for maintenance and system operations.

Key features:

Lower Cost: Air-insulated load-break switches are more economical than gas-insulated equipment.

Simple Design: They feature fewer specialized components and are generally easier to install and maintain.

Visibility and Accessibility: Air insulation facilitates visual inspection and maintenance.

Reliable Switching: Highly suitable for routine load switching, isolation, and line sectionalizing operations.

No SF6 Gas Handling: Avoids the environmental and regulatory issues associated with gas-insulated equipment.

Flexible Deployment: Widely used in compact substations, industrial facilities, and public distribution networks.

Technical Characteristics

Specific rated current, short-circuit withstand capability, operating mechanism, dimensions, and other electrical parameters should be confirmed according to the selected model and technical datasheet.

How does an air-insulated vacuum load break switch operate?

1. Normal Operation: Under normal operating conditions, the switch maintains the electrical connection between the incoming and outgoing circuits.

2. Load Switching: When the circuit needs to be disconnected under specified load conditions, the operating mechanism causes the switch contacts to open.

3. Vacuum Arc Extinction: The vacuum interrupter provides a controlled environment for extinguishing the arc generated when the contacts separate.

4. Isolation and Maintenance: After the switching operation is completed, the isolation position and mechanical interlocking devices help operators establish safer conditions for maintenance.

AIS LBS vs GIS vs Vacuum Switch

FAQ

What voltage levels are available for this Air Load Break Switch?

This product is designed for 12kV and 24kV medium-voltage applications. Exact rated voltage and electrical parameters should be confirmed according to the selected model.

Does the switch use SF₆ gas?

No. The 12kV/24kV Eco-Friendly Air Insulated Vacuum Load Break Switch is designed without SF₆ gas. Air is used as the insulation medium, while vacuum technology is used for arc interruption.

Does it use insulating oil?

No. The air-insulated configuration does not require insulating oil as its primary insulation medium.

Can it be used outdoors?

Outdoor configurations may be available depending on the product design. The actual model should be selected according to the required enclosure, IP protection, ambient conditions, and installation environment.

Does the switch have a mechanical interlocking system?

Yes. The switching mechanism incorporates mechanical interlocking features designed to reduce incorrect operation and improve operational safety.

Can SanGao provide OEM or ODM services?

Yes. SanGao provides OEM and ODM services and can evaluate customized requirements based on project specifications and technical drawings.

Can SanGao provide installation manuals?

Yes. Professional installation manuals and technical documents can be provided according to customer and project requirements.

What is the typical delivery time?

For standard products, the stated lead time is generally around 3–5 days before shipment, depending on order quantity and configuration. Customized products may require additional production time.

Is SanGao a manufacturer or trading company?

SanGao is a professional manufacturer specializing in high-voltage power transmission and distribution equipment, with capabilities covering R&D, design, production, testing, and sales.