The BV40-40.5 Indoor Medium-voltage Solid-sealed Vacuum Circuit Breaker is suitable for three-phase AC power systems with rated voltage 40.5kV and rated frequency 50Hz. It serves as a control and protection switching device and is widely applied in power grids, power generation, oil & petrochemical, metallurgy, rail transit, infrastructure, and other fields.

Utilizing the latest operating mechanism and solid-sealed pole technology, it features high reliability, low noise, compact size, long service life, and maintenance-free operation, providing safe, reliable, and intelligent solutions for the power distribution industry.