ZW43A-12F 12kV Outdoor Vacuum Circuit Breaker
ZW43A-12F 12kV Outdoor Vacuum Circuit Breaker is a compact pole-mounted switching device designed for reliable protection and control in medium-voltage overhead distribution networks. Utilizing advanced vacuum interruption technology, it provides fast fault clearing, stable switching performance, and efficient load control without the need for SF6 gas.
With an embedded pole structure, durable outdoor design, and optional automatic reclosing function, the ZW43A-12F offers excellent environmental adaptability and long-term reliability. It is widely used in urban and rural power distribution systems, renewable energy connection points, and smart grid applications requiring safe operation, low maintenance, and dependable fault isolation.
Get a QuoteOverview
The ZW43A-12F Outdoor Vacuum Circuit Breaker is a 12kV pole-mounted switching device designed for reliable protection and control in medium-voltage overhead distribution networks. Featuring an embedded pole structure and advanced vacuum interruption technology, it provides efficient load switching, fault isolation, and short-circuit protection without the use of SF6 gas.
With a compact design, excellent environmental adaptability, and optional automatic reclosing functionality, the ZW43A-12F delivers stable performance under demanding outdoor conditions. It is widely used in urban and rural distribution networks, renewable energy connection systems, and smart grid applications requiring fast switching, reliable operation, and reduced maintenance requirements.
Features
The ZW43A-12F Outdoor Vacuum Circuit Breaker is designed for reliable switching and protection in various 12kV medium-voltage distribution applications.
- Smart Grid Feeder Automation
Supports remote operation, fault isolation, and intelligent control for modern distribution automation systems. - Renewable Energy Connection Systems
Serves as a reliable interface switching device for solar power plants, wind farms, and other distributed energy sources. - Rural Power Distribution Networks
Suitable for remote overhead lines and rural electrification projects where reliable operation and reduced maintenance are required. - Transformer Branch Line Protection
Provides safe switching and fault protection for transformer feeder circuits while improving maintenance safety and system reliability.
Technical Data
| Item | Unit | Parameter | |
| Rated Voltage | kV | 12 | |
| Rated Current | A | 630 | |
| Rated Frequency | Hz | 50/60 | |
| Rated Short Circuit Breaking Current | kA | 20 | |
| Rated Lightning Impulse Withstand Voltage (Peak) | Phase-to-Ground/Phase-to-Phase | kV | 75 |
| Across Open Contacts | 125 | ||
| Mechanical life | Times | ≥10000 | |
| Protection Degree | / | IP65 | |
Overall and mounting dimensions(mm)
