The series of vacuum circuit breakers developed by Xikai Limited replace traditional SF6 arc extinguishing with vacuum arc extinguishing. The vacuum interrupter is placed in the arc extinguishing chamber porcelain bushing. Each circuit breaker consists of three single poles arranged in an "I" shape. The body is mounted on a bracket, with the mechanism and mechanism box directly hung below the bracket, equipped with a spring operating mechanism and three-pole mechanical linkage.
