Nominal voltage 25kV
Max. working voltage 33kV
Rated current 1000A
Rated short-circuit break-off capability 20kA
Short-circuit breaking capacity 660MVA
Mechanical service life 300,000 times
TDVC-660/25G vacuum circuit breaker complies with IEC60077-4, which is featured by simple and compact structure, high reliability and sound comprehensive performance, in particular, external insulation is made of outdoor epoxy resin, which has sound electrical performance and has higher rigidity at its surface, it can effectively ensure overall performance of vacuum circuit breaker and prevent deformation made between porcelain layer while train runs at high speed, therefore, such vacuum circuit breaker is in particular applicable to install on high-speed EMUs.