The VT19-24 indoor high voltage vacuum circuit breaker is designed for three-phase AC electrical systems operating at 50Hz and 24kV. This circuit breaker serves as a control and protection component in mining operations, power plants, and substations. Its specialized design makes it particularly suitable for applications requiring frequent operation under rated current conditions or multiple interruptions of short-circuit currents.

This circuit breaker complies with national and international standards including GB1984, GB/T11022, DL/T403, and IEC62271. It features reliable locking mechanisms and can be used in both truck-mounted and fixed installation configurations.

The vacuum arc-extinguishing chamber is the core component responsible for bearing, making, and breaking current energy. It provides superior arc-extinguishing capability and extended operational durability.

• Insulation Enclosure: Constructed from high-intensity alumina ceramics material, welded with stainless steel covers at both ends to form a completely sealed cavity.
• Metal Shield Cover: The inner layer quickly compounds or condenses metal moisture generated during terminal making and breaking operations, rapidly restoring insulation media intensity while protecting the ceramic enclosure from metal splashing damage.
• Stainless Steel Accordion Pipe: This critical component enables the moving terminal to operate within the fully enclosed arc-extinguishing chamber, with its sealing performance and longevity being key factors in determining the mechanical durability of the vacuum arc-extinguishing chamber.
• Terminal Technology: Utilizes chromium-copper terminals with advanced smelting technology to ensure reliable breaking function, electrical durability, and reduced operational over-voltage levels.