Indoor high voltage vacuum circuit breaker

The ZN85-40.5 indoor high-voltage vacuum circuit breaker is a revolutionary switching device designed to interrupt the operating current and fault current of high-voltage circuits. With its integrated and modular design, this circuit breaker offers a simple and reasonable overall structure. The arc extinguishing chamber part is located on the top, while the interlocking and operating mechanism is placed at the bottom.

One of the standout features of this circuit breaker is its exclusive 3AV3 spring operating mechanism. This innovative mechanism requires no adjustment and offers stable and reliable action, ensuring optimal performance. Additionally, the vacuum arc extinguishing chamber is enclosed in a closed insulating cylinder, enhancing insulation performance and reducing the overall size of the device.

The scope of application for the ZN85-40.5 series indoor high-voltage vacuum circuit breaker is vast. It is specifically designed for indoor use, compatible with three-phase AC 50Hz and rated voltage of 40.5KV. Equipped with a dedicated 3AV3 spring mechanism, this circuit breaker can be configured in either the JYN1-40.5 (Z) removable metal-enclosed switch cabinet or the KYN61-40.5 (Z) assembled metal-enclosed switch cabinet. It is regarded as the most ideal circuit breaker in the current range of 40.5KV devices.

The ZN85-40.5 series boasts high technical parameters, strong breaking capacity, and reliable operation. Its performance is not only stable but also offers a long lifespan. Additionally, this circuit breaker requires minimal maintenance and eliminates any explosion hazards or potential pollution risks.

This versatile product finds its applications in industrial and mining enterprises, power plants, and substations, where it serves the purpose of protecting and controlling electrical facilities in single busbar systems. Its durability and reliability make it highly suitable for use in places with frequent operations. Moreover, it can be effectively used in special occasions, such as cutting off capacitor banks.

In conclusion, the ZN85-40.5 indoor high-voltage vacuum circuit breaker stands as an exceptional choice for interrupting operating current and fault current in high-voltage circuits. With its integrated and modular design, exclusive 3AV3 spring operating mechanism, and closed insulating cylinder, this circuit breaker guarantees efficient and reliable performance. Its wide range of applications, high technical parameters, and impressive breaking capacity make it the top choice for electrical facility protection and control. Choose the ZN85-40.5 circuit breaker for a secure, stable, and efficient electrical system.