VCB-12 series solid-sealed indoor vacuum circuit breaker is an
indoor high-voltage switchgear for three-phase power system with
rated voltage of 12 kV and frequency of 50 Hz. It is used as
protection and control appliance due to vacuum circuit breaker. The
special advantages are especially suitable for frequent operations
requiring rated current or multiple short-circuit currents. VCB-12
series solid-sealed indoor vacuum circuit breakers are fixedly
mounted, mainly used for fixed switchgear. The circuit breaker can
be used alone or in ring power supply, box transformer or various
non- power supply system.
