Product introduction
The AIERWAY QH-ER.JYT40.5-A1 (42mm) is a specialized indoor metal-enclosed vacuum circuit breaker (VCB) switchgear designed for 40.5kV medium-voltage power systems, featuring a 42mm center distance between phases—a critical design parameter that optimizes space efficiency while maintaining full electrical performance for high-voltage applications. This product represents an advanced, compact solution for primary distribution networks where space constraints and reliable protection are paramount.
Key Features & Advantages
– Space-Optimized Design: The 42mm center distance allows for a significantly more compact switchgear lineup compared to conventional 40.5kV designs, saving valuable floor space in substations.
– Enhanced Safety: Full metal-clad construction, compartmentalization, and interlocks protect operators and equipment.
– Environmental Sustainability: No SF₆ gas or oil, reducing greenhouse gas emissions and disposal concerns.
– International Compatibility: Meets global standards for 40.5kV switchgear, suitable for export markets and international 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 |





