Outdoor high-voltage alternating-current demarcation vacuum circuit breaker

The invention relates to the technical field of circuit breakers, and discloses an outdoor high-voltage alternating-current boundary vacuum circuit breaker which comprises a protective shell, a sealing frame is fixedly connected to the end of the protective shell, a glass plate is slidably connected to the inner wall of the sealing frame, a sealing cover is fixedly connected to the bottom of the glass plate, and a circuit breaker is fixedly connected to the inner wall of the protective shell. A mounting hole is formed in the surface of the circuit breaker, and a round rod is fixedly connected to the surface of the glass plate. The mounting hole is formed in the surface of the circuit breaker, the circuit breaker and the protective shell are mounted and fixed through the mounting hole, the sealing frame is arranged at the end of the protective shell, the glass plate is slidably connected with the inner wall of the sealing frame, and the glass plate is used for protecting the circuit breaker; and a sealing part