Product introduction
The Aierway QH-JY4KVS1-A1 is a standardized indoor vacuum circuit breaker (VCB) unit designed for integration into medium-voltage metal-clad or metal-enclosed switchgear. Its designation “VS1 Four-Hole” refers to its mounting configuration—featuring four fixing holes—which ensures compatibility with a wide range of switchgear panels and retrofitting applications. This product is engineered for reliable circuit breaking, protection, and control in 12kV or 24kV distribution systems, particularly where space efficiency, ease of installation, and standardized interfaces are required.
Core Features & Design
1. Vacuum Interruption Technology:
– Utilizes a vacuum interrupter as the arc-quenching medium, ensuring fast and reliable interruption of load and fault currents without external emissions or maintenance needs.
– Vacuum technology offers long electrical life, minimal contact erosion, and consistent performance over thousands of operations.
2. “Four-Hole” Mounting System:
– The four-hole fixed mounting design provides mechanical stability and simplifies installation/alignment within switchgear compartments.
– This standardized interface allows for direct replacement or integration into both new and existing switchgear designs, reducing engineering and adaptation time.
Main Technical Parameters
| Specification | Value |
|---|---|
| Rated voltage | 12kV |
| Rated current | 630A/1250A/1600A |
| Rated frequency:50Hz | 50Hz |
| short-term(1 minute)power frequency withstand current | 48kV |
| Lightning impulse withstand voltage (peak) | 85kV |
| Mechanical life | 10,000 times |
| Storage period | 20 years |
| Partial discharge capacity | ≤5pC |
Outline and dimensions of installation
