Meidensha Corporation
Meidensha 145kV Insulator Type Vacuum Circuit Breaker


Manufacturer: Meidensha Corporation
Model: 145kV Insulator Type
Features
Drawing on vacuum circuit breaker (VCB) expertise since 1977, Meidensha developed the world’s first 145kV single-break insulator-type VCB. This industry-leading technology delivers high voltage and large capacity with a short-circuit breaking capability of up to 40 kA.
Significant Lifecycle Cost Reductions (Compared to conventional double-break models):
Ultra-Compact: 70% reduction in installation footprint.
Lightweight: 30% reduction in total mass, simplifying transport and setup.
High Reliability: 30% reduction in operating energy for superior efficiency.
Specifications
| Rated voltage | 145kV |
|---|---|
| Rated short-circuit breaker current | 40kA |
| Rated current | 2000A |
| Insulating medium | SF6 gas (dry air) |
| Applicable standards | IEC62271-100 |











