The VH1 series indoor high-voltage vacuum breaker is a product made
domestically by our company based on 3AF technology from the German
Siemens company.

Featuring compact construction and reliable performance, this series
includes vacuum quenching pots with exposed shielded enclosures.

In order to meet water insulation requirements and problems arising from
earthed neutral points in China's electric grid, improvements have been
made to bottlenecks in the original design.

The temperature rise problem that model 3150A experiences has also been
solved successfully. The main rotating part of VH1 series products has
special bearings with a solid lubricant.

We can also design and manufacture products with multiple phase-to-phase
distances including 210, 230, 250 and 275mm to facilitate switching
between cabinets of different types.