Product introduction
The Aierway QH-ER.JYT12.5K-A1 is an advanced, medium-voltage vacuum circuit breaker (VCB) belonging to the “VS1” family, distinguished by its five-hole mounting configuration. This design offers enhanced mechanical stability and compatibility for integration into standardized switchgear panels, particularly for 12.5kV power distribution systems. The product is engineered to deliver reliable interruption, protection, and control in demanding applications, with a focus on durability, safety, and ease of installation.
Key Advantages
– Robust Mounting: Five-hole design ensures superior mechanical stability and vibration resistance.
– High Reliability: Vacuum interrupters offer maintenance-free operation and long service life.
– Easy Integration: Standardized dimensions and mounting interface reduce installation time and complexity.
– Safety Compliance: Meets international standards for interlocks, isolation, and earthing.
– Eco-Friendly: No SF₆ gas or oil, supporting sustainable power infrastructure.
Main Technical Parameters
| Specification | Value |
|---|---|
| Rated voltage | 12kV |
| Rated current | 630A/1250A/1600A |
| Rated frequency | 50Hz |
| Short term (1min) power frequency withstand current | 48kV |
| Lightning impulse withstand voltage (peak value) | 85kV |
| Mechanical life | 10,000 times |
| Storage period | 20 years |
| Partial discharge capacity | ≤5pC |




