The QIHANG ZW7-40.5kV Outdoor High Voltage Vacuum Circuit Breaker is designed for reliable protection and switching in medium- and high-voltage power distribution systems. Built for 40.5kV outdoor applications, it is widely used in substations, utility distribution lines, and industrial power networks requiring safe and stable operation.
This vacuum circuit breaker adopts advanced vacuum arc extinguishing technology, providing strong interrupting capability, long electrical life, and low maintenance requirements. It delivers dependable overload and short-circuit protection, helping safeguard transformers, overhead lines, and electrical equipment from fault damage.
With a durable outdoor structure and stable mechanical performance, the ZW7-40.5kV breaker is engineered to perform in demanding environments such as humidity, dust, and temperature variation. It is suitable for utility infrastructure, outdoor switchgear systems, and industrial high-voltage distribution projects requiring consistent protection performance.
Key Features
• Model: ZW7-40.5kV
• Rated voltage: 40.5kV
• Vacuum arc extinguishing technology
• Reliable overload and short-circuit protection
• Durable outdoor high-voltage construction
• Long service life with low maintenance
• Stable performance in harsh environments
• Suitable for substations and utility systems
Typical Applications
• 35kV–40.5kV outdoor distribution networks
• Utility substations and overhead line systems
• Industrial high-voltage power distribution
• Outdoor switchgear and control systems
• Smart grid and electrical infrastructure projects
Key Attributes
| Breaking Capacity | None | Phase | None |
| Rated Frequency | None | Model Number | ZW7-40.5KV |
| Place of Origin | China | Brand Name | QIHANG |
Packaging and Delivery
| Selling Units | Single item |
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