High-voltage Switchgear

Our Value

Mitsubishi Electric gas-insulated switchgear (GIS) and gas circuit breakers (GCB) represent the best of modern technologies. Since commercializing Japan's first GCB in 1968, we have supplied a variety of circuit breakers and GIS rated from 72~1100kV.

Gas-insulated Switchgear (GIS)

The advantages of Mitsubishi Electric GIS are numerous including space savings, flexible designs, less field construction work (i.e., quicker installation time), minimal maintenance, and excellent reliability and safety.

Gas Circuit Breakers (GCB)

Gas circuit breakers incorporated some of the latest technologies including thermal gas current analysis, which contributes to ensuring excellent product reliability.

550kV dead tank GCB

550kV live tank GCB

Update portfolio of GCB and operating mechanism

Lightning Arresters

Mitsubishi Electric produces various types of lighting arresters, such as the 500kV insulator-type for transformers.