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Modern overhead distribution systems require switching equipment that can quickly isolate faults while maintaining continuous power supply. Our Overhead Line Circuit Breaker is designed specifically for medium-voltage overhead networks, providing reliable protection against short circuits, overloads, and earth faults in utility, industrial, and renewable energy applications.
Unlike conventional indoor protection devices, this outdoor-rated breaker is engineered for direct installation on overhead poles and distribution structures. The compact design integrates vacuum interruption technology, intelligent protection functions, and weather-resistant insulation components to ensure stable operation under extreme outdoor conditions including heavy rain, dust, salt fog, and temperature fluctuations.
As an experienced Overhead Line Circuit Breaker Manufacturer, we provide customized solutions covering different voltage levels, current ratings, communication requirements, and mounting configurations. The product family includes solutions such as 12KV Pole Mounted Circuit Breaker, 12KV Outdoor Vacuum Circuit Breaker, and Outdoor Pole Top Circuit Breaker configurations for different distribution environments.
The Overhead Line Circuit Breaker combines vacuum arc extinguishing technology with intelligent control functions to improve grid reliability and reduce outage duration. The sealed vacuum interrupter eliminates the need for oil or SF6 gas, providing cleaner operation and significantly reducing maintenance requirements.
The equipment is widely applied in medium-voltage overhead power distribution where reliable switching and protection are essential.
| Parameter | Unit | Specification | Engineering Advantage |
|---|---|---|---|
| Rated Voltage | kV | 12 | Suitable for medium voltage overhead distribution systems |
| Rated Frequency | Hz | 50 / 60 | Compatible with global power networks |
| Rated Normal Current | A | 630 / 1250 | Supports different feeder capacity requirements |
| Breaking Capacity | kA | 20 / 25 | Effective fault current interruption |
| Peak Withstand Current | kA | 50 / 63 | Improved short-circuit resistance |
| Interrupting Time | ms | ≤60 | Reduces equipment stress during faults |
| Closing Time | ms | ≤80 | Fast switching response |
| Mechanical Life | Operations | ≥10,000 | Long service interval with reduced maintenance |
| Creepage Distance | mm/kV | ≥31 | Suitable for polluted outdoor environments |
| Control Voltage | V | 110 DC / 220 AC/DC | Flexible control system integration |
| Approximate Weight | kg | 150-220 | Easy transportation and installation |
Every Overhead Line Circuit Breaker is manufactured under strict quality control procedures. Before shipment, each unit undergoes electrical and mechanical verification including insulation withstand testing, contact resistance measurement, operating mechanism testing, and functional inspection.
Our production process follows international standards to ensure consistent performance for global power distribution projects. From component selection to final assembly, every stage is controlled to provide reliable equipment for long-term outdoor operation.
Choosing the right Overhead Line Circuit Breaker Supplier helps utilities and engineering companies achieve safer and more reliable distribution networks. Our products combine proven vacuum switching technology, rugged outdoor construction, and flexible automation capability to meet the requirements of modern smart grids.
Contact our engineering team for customized specifications, technical consultation, and complete medium-voltage overhead line protection solutions.
