Outdoor Dual-Isolation AC High-Voltage Vacuum Circuit Breaker 11kV 12kV
Key attributes
| Brand | ROCKWILL |
| Model NO. | Outdoor Dual-Isolation AC High-Voltage Vacuum Circuit Breaker 11kV 12kV |
| Rated voltage | 12kV |
| Rated normal current | 630A |
| Rated frequency | 50/60Hz |
| Series | ZW32 |
Product descriptions from the supplier
Description
Product Overview
The ZW32-12 Outdoor AC High-Voltage Vacuum Circuit Breaker is a rugged, pole-mounted switching device designed for 12kV, three-phase AC 50Hz outdoor power distribution systems. It is engineered to reliably make and break load currents, overload currents, and short-circuit currents, providing essential protection and control for power grids.
Ideal for substations, industrial and mining distribution networks, and rural grids requiring frequent operation, it can also serve as a grid sectionalizing switch. When paired with an optional controller, it enables distribution automation, supporting smart grid applications.
Core Features
- Vacuum Interruption Technology: Uses vacuum interrupters for excellent arc extinction, ensuring long electrical life and minimal maintenance.
- Rugged Outdoor Design: IP65-rated enclosure withstands harsh weather, dust, and extreme temperatures for reliable outdoor performance.
- Flexible Operation: Spring-operated mechanism enables manual or motorized operation, with optional remote control capabilities.
- Wide Application Range: Suitable for load switching, overload protection, and short-circuit interruption in diverse distribution scenarios.
- Automation Ready: Can be integrated with a controller to enable distribution automation, including remote monitoring and auto-reclosing.
- Dual Isolation Option: The double-isolation variant (ZW32-12 Dual Isolation) provides enhanced safety for maintenance scenarios.
Technical Parameters
| Parameter | Specification |
|---|---|
| Rated Voltage | 12kV |
| Rated Frequency | 50Hz (60Hz optional) |
| Rated Current | 630A / 1250A |
| Short-Circuit Breaking Current | 20kA / 25kA |
| Operating Mechanism | Spring-Operated |
| Protection Class | IP65 |
| Mechanical Life | ≥10,000 operations |
| Certifications | IEC 62271 |
Application Scenarios
- 12kV Outdoor Distribution Grids: Primary switching and protection for overhead lines and pole-mounted transformers.
- Substations & Industrial Facilities: Protection and control for medium-voltage distribution systems in industrial parks and mining operations.
- Rural Power Networks: Ideal for frequent switching operations in rural and remote areas with limited maintenance resources.
- Smart Grid Automation: Serves as a sectionalizing switch that, when paired with a controller, enables fault isolation and power restoration.
- Temporary Power Installations: Reliable switching for construction sites and event power distribution.
Installation & Maintenance
- Pole-Mounted Installation: Comes with standardized mounting brackets for quick, secure attachment to utility poles.
- Minimal Maintenance: Vacuum interrupters require no periodic servicing; only annual inspection of mechanical parts and insulation is recommended.
- Easy Operation: The spring mechanism ensures smooth, low-effort manual operation, with optional motorized control for remote use.
- Environmental Resilience: Designed to operate in temperatures from -40°C to +70°C, with resistance to salt spray and heavy pollution.
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