The ZN63 (VS1)-12 series side-mounted high-voltage vacuum circuit breaker is an indoor high-voltage switchgear device, suitable for use in three-phase power systems with a rated voltage of 12kV and a frequency of 50Hz, serving as a protection and control electrical appliance. Due to the special advantages of vacuum circuit breakers, it is particularly well-suited for applications requiring frequent operations at rated current or multiple interruptions of short-circuit currents.

The ZN63 (VS1)-12 series side-mounted high-voltage vacuum circuit breaker is designed for fixed installation and is primarily used in fixed switchgear cabinets. This circuit breaker can be used independently and is also suitable for ring main unit power supply, box-type substations, or various non-standard power supply systems.