Whatsapp
The Outdoor Pole Top Circuit Breaker is designed for overhead distribution networks where fast fault isolation, reliable switching, and minimal maintenance are essential. Installed directly on utility poles, this compact medium voltage protection device helps utilities improve grid reliability while reducing outage duration caused by temporary and permanent faults.
Our product range includes solutions such as the 12KV Pole Mounted Circuit Breaker , the 12KV Outdoor Vacuum Circuit Breaker , and intelligent switching equipment based on Pole Mounted Vacuum Circuit Breaker technology.
Compared with conventional outdoor switching devices, this pole top breaker adopts sealed vacuum interruption technology, corrosion-resistant housing, and optional intelligent control functions to support modern distribution automation systems. It is widely used in utility feeders, renewable energy collection lines, industrial distribution networks, and remote power systems where reliable operation under harsh weather conditions is required.
The Outdoor Pole Top Circuit Breaker uses a maintenance-free vacuum interrupter to provide rapid arc extinction during short-circuit conditions. The sealed vacuum chamber prevents external contamination from affecting interruption performance, allowing stable operation throughout the equipment lifecycle without oil replacement or SF6 gas handling.
The compact pole-mounted structure reduces installation space requirements and simplifies deployment on existing overhead line infrastructure. A stainless steel operating mechanism enclosure combined with weather-resistant insulation materials provides excellent protection against moisture, salt fog, dust, and ultraviolet radiation.
| Design Feature | Engineering Benefit |
|---|---|
| Sealed Vacuum Interrupter | Provides fast arc extinction, long electrical life, and eliminates oil or SF6 maintenance. |
| Stainless Steel Outdoor Enclosure | Protects operating components against corrosion, moisture, dust, and UV exposure. |
| Epoxy Resin Insulated Bushings | Improves dielectric strength and pollution resistance in outdoor environments. |
| Intelligent Control Unit | Supports remote monitoring, fault indication, and automatic distribution management. |
| Automatic Reclosing Function | Helps restore power after temporary line faults and improves supply continuity. |
| Parameter | Specification | Remarks |
|---|---|---|
| Rated Voltage | 12 kV / 15.5 kV | Medium voltage overhead distribution systems |
| Rated Current | 630 A / 800 A | Higher current versions available |
| Short Circuit Breaking Current | 20 kA / 25 kA rms | Designed for feeder protection applications |
| Peak Withstand Current | 50 kA / 63 kA | High fault withstand capability |
| Insulation Level | 42 kV power frequency withstand | 75 kV lightning impulse withstand |
| Mechanical Endurance | 10,000 operations (M2 class) | IEC 62271 compliant |
| Electrical Endurance | 30 fault interruptions (E2 class) | Full short circuit rating |
| Operating Temperature | -40°C to +70°C | Suitable for extreme climates |
| Protection Degree | IP65 | Outdoor mechanism enclosure |
