What is the difference between a circuit breaker and a vacuum circuit breaker?

A circuit breaker is a short form of what people call a pole-type circuit breaker. A circuit breaker is also a vacuum circuit breaker. Compared with an ordinary vacuum circuit breaker, the only difference is the material of the package. However, when it comes to deeper technical issues, circuit breakers are very different from ordinary vacuum circuit breakers.

A circuit breaker is encapsulated by pouring epoxy resin outside the original vacuum bubble. Compared with traditional assembled poles, the pole has a greatly reduced number of parts, a simple structure, and convenient installation, which simplifies the manufacturing process of the circuit breaker and greatly improves the reliability and stability of the circuit breaker.

Since the vacuum interrupter is embedded in the epoxy resin insulating material, it converts the original surface insulation into volume insulation, so no further processing is required. The sealed pole can achieve a high insulation strength, which is more conducive to the miniaturization design of circuit breakers and switch cabinets.

The vacuum interrupter and related conductive parts are embedded in epoxy resin solid insulation material, shielding the impact of the external environment. It is completely maintenance-free during the service life of the product, making it highly adaptable and widely used in chemical, metallurgical, mining and other occasions.

Although its production cost is relatively high, the main circuit that seals the low-resistance vacuum interrupter and the outlet seat in epoxy resin improves the insulation level and anti-pollution ability, and eliminates the influence of condensation.