ZN63A(VS1) 型戶內交流高壓真空斷路器是三相交流 50Hz，額定電壓為 7.2~12(24)kV 的戶內高壓開關設備。斷路器符合我國國家標準GBJ1984《高壓交流斷路器》、JB3855《3.6~40.5kV 戶內交流高壓真空斷路器》和相關的 IEC 標準，并且有可靠的聯(lián)鎖功能。斷路器可進行頻率操作，具有多次開斷和快速重合閘的功能。斷路設計成前后分裝結構，既可作為固定安裝的單元，也可與盤車配裝任何單獨的手車使用。

ZN63A(VS1) indoor AC high voltage vacuum circuit breaker is a three-phase AC 50Hz indoor high voltage switchgear with rated voltage of 7.2~12(24)kV. The circuit breaker conforms to the national standard GBJ1984 "High Voltage AC Circuit Breaker", JB 3855 "3.6 ~ 40.5 kV 

Indoor AC High Voltage Vacuum Circuit Breaker" and relevant IEC standards, and has reliable interlocking function. The circuit breaker can be operated at frequency and has the functions of multiple opening and fast reclosing. The circuit breaker is designed as a front-rear splitcharging structure, which can be used as a fixed installation unit or can be equipped with any separate handcart with turning gear.