Embedded Poles Type Vacuum Circuit Breaker

As a key 12kV medium-voltage product of Kechang Electrical, the Embedded Poles Type Vacuum Circuit Breaker is specifically designed for compact switchgear, ring main units, and power grid renovation projects. Built on Kechang's mature vacuum switching technology and production experience, it integrates vacuum interrupter, conductive components, and insulation support into an integrated embedded pole. For buyers, it solves the critical pain point of incompatible parts and assembly errors with traditional split-type breakers, ensuring seamless matching with your existing switchgear and reducing on-site installation risks.

Adopting precision epoxy resin integral casting, the embedded pole forms a seamless, airtight insulation structure. This design completely isolates internal components from moisture, dust, and corrosive gases, avoiding insulation degradation and partial discharge risks. Each pole undergoes strict dielectric strength and temperature cycle tests before delivery, complying with national standards. This solves your worry about frequent insulation maintenance and unexpected power outages, extending the product's service life to over 15 years.

Benefiting from the sealed embedded pole design, the breaker's core components (vacuum interrupter, contacts) are free from external environmental erosion, requiring no regular cleaning or vacuum degree detection. The matched modular operating mechanism, with a mechanical life of 3000 operations, also minimizes wear and tear. This solves your problem of high maintenance labor and part replacement costs, significantly reducing the total operational cost throughout the product's life.

Equipped with high-integration pole layout, the breaker's volume is reduced by 30% compared to traditional split-type products. Its compact structure allows for smaller switchgear design, which is particularly suitable for urban substations, high-rise building electrical rooms, and other space-constrained scenarios. For buyers, this not only cuts switchgear manufacturing and installation costs but also simplifies transportation and storage, lowering logistics expenses.

Leveraging Kechang's professional 12kV product customization capability, the breaker supports flexible configuration of rated current (630A-4000A) and auxiliary voltage (AC/DC 110V/220V) according to your project requirements. It can also be tailored with additional functions such as auxiliary contacts and interlock devices to match specific protection needs. Our pre-sales technical team will conduct in-depth communication to confirm your grid parameters and switchgear models, ensuring the product perfectly fits your project and avoiding over-purchase or insufficient performance.

Each breaker passes multi-stage strict inspections (including vacuum degree test, mechanical performance test, and insulation test) in Kechang's professional laboratory, complying with national standards and industry acceptance criteria. We provide a 3-year quality warranty for core components, along with pre-sales technical consultation, on-site installation guidance, and long-term spare parts supply. Backed by Kechang's reliable after-sales network, this solves your concerns about product quality and post-purchase maintenance, ensuring worry-free procurement and operation.