Product introduction
The AIERWAY 40.5JYT-A1 is a high-performance, indoor metal-enclosed vacuum circuit breaker (VCB) switchgear designed for 40.5kV medium-voltage power distribution systems. As part of the JYT series, it represents a robust solution for primary distribution substations, industrial plants, and large commercial facilities requiring reliable protection, control, and isolation at higher voltage levels. The product combines advanced vacuum interruption technology with a safe, compartmentalized metal-clad design to meet the demanding requirements of modern 40.5kV networks.
Key Features & Advantages
– High Voltage Capability: Specifically designed for 40.5kV systems, with appropriate clearances, insulation, and dielectric strength.
– Flexible Configuration: Can be supplied as individual panels or assembled into complete switchgear lineups with various feeder arrangements.
– Reliable Performance: Vacuum interruption ensures consistent operation over thousands of cycles with minimal wear.
– International Standards: Meets global requirements for 40.5kV switchgear, facilitating export and cross-border projects.
Main Technical Parameters
| Main Technical Parameters | |
| Specification | Value |
|---|---|
| Rated voltage | 40.5kV |
| The rated current | 630A/1250A/1600A/2000A/2500A |
| Rated frequency | 50Hz |
| Short-term (1 min) power frequency withstand current | 95kV |
| Lightning impulse withstand voltage (peak value) | 185kV |
| Mechanical life | 10,000 times |
| Storage period | 20 years |
| Partial discharge capacity | ≤5pC |



