Product introduction
The Aierway 12kV Center Distance 205mm product is a compact, high-performance vacuum circuit breaker module designed for medium-voltage switchgear applications. Characterized by its standardized modular dimensions and reliable interruption capability, it serves as a core component in various 12kV distribution and protection systems, offering space-efficient integration and enhanced operational safety.
Key Features
1. Ultra-Compact Design
-205mm Center Distance: Drastically reduced phase spacing compared to conventional switchgear (typically 210-275mm).
– Space Savings: Up to 25% reduction in overall footprint compared to standard designs.
2. Advanced Insulation Technology
– Optimized Dielectric Design:** Enhanced insulation coordination to maintain safety margins at reduced dimensions.
– Composite Insulation Materials:Utilization of advanced solid and gas insulation systems.
3. Modular & Scalable Architecture
– Stackable Design: Multiple units can be combined vertically or horizontally.
Technical data table 1
| Specification | Value |
|---|---|
| Rated Voltage | 12kV |
| Rated Current | 630A, 1250A |
| Power Frequency Withstand Voltage | 48kV/1min |
| Lightning Impulse Withstand Voltage | 85kV |
| Rated Frequency | 50Hz |
| Rated Short-Circuit Breaking Current | 25kA, 31.5kA |
| Rated Short-Circuit Breaking Times | 30Times |
| Rated Peak Withstand Current | 63kA |
| Rated Single Capacitor Bank Breaking Current | 630A |
| Rated Back-to-Back Capacitor Bank Breaking Current | 400A |
| Loop Resistance under Rated Contact Force | ≤25~30μΩ |
| Contact Self-Closing Force | 110±60N |
| Specification | Value |
|---|---|
| Contact Opening Distance | 9±1mm |
| Rated Over-Travel | 3.5±0.5mm |
| Average Opening Speed | 1.1±0.2m/s |
| Average Closing Speed | 0.8±0.2m/s |
| Rated Contact Force | 2500±200N 3200±200N |
| Contact Closing Bounce Time | ≤2ms |
| Opening Contact Rebound Amplitude | ≤2mm |





