Indoor Vacuum Circuit Breakers Cover Multiple Voltage Classes

Indoor vacuum circuit breakers now cover multiple voltage classes including 12kV, 24kV and 40.5kV, meeting the needs of different distribution scenarios. The 12kV indoor series includes permanent magnet operating, embedded pole and side-mounted structures. The embedded pole design integrates the vacuum interrupter with insulating material, helping reduce size and improve environmental adaptability. The 24kV and 40.5kV indoor high voltage models serve higher voltage substations and industrial distribution systems.

Three-position vacuum circuit breakers combine isolation, earthing and switching functions in one unit, reducing the number of components inside the cabinet. Production focuses on the sealing of the interrupter and the stability of contact materials, and every unit undergoes mechanical characteristic and insulation tests before delivery. Suppliers say the combination of different voltage classes and mounting styles allows buyers to select models flexibly according to cabinet structure, shortening the equipment matching cycle for distribution projects.