ZN12-12 series of indoor HV vacuum circuit breaker is three phase A.C.50 (60) Hz indoor high voltage distribution equipment with 12kV rated voltage and below. This kind of circuit breaker is characterized by simple construction, strong breaking capability, long life with complete operating functions and convenient maintenance. It is suitable for controlling and protecting transmission and distribution system such as power generation plant and substation, especially used in the fields where it is frequently operated.This kind of vacuum circuit breaker can be used for fixed panels (XGN2 and GGIA), it also can be equipment with truck used for varies panels such as JYN2, KYN1 and KYN49) as well as used for reconstruction for old-fashioned oil switchgear.

Rated voltage:12KV
Rated frequency:50/60HZ
Rated current: 630,1000,1250,1600A;
1250,1600,2000,2500A;
1600,2000,2500,3150A;
Rated short circuit breaking
current:25,31.5,40KA
Rated peak withstand current:63,80,100KA