Medium voltage circuit breaker for distribution systems up to 15 kV, 2000 A, 25 kA. These are column-type switches. The vacuum interrupters are located inside porcelain insulators filled with SF6 / nitrogen at 0.5 bar above atmospheric pressure to prevent condensation. The control mechanism is located in a weatherproof cabinet and is produced in two versions: - With an electromagnetic drive - With a spring actuation mechanism