Pole-mounted Outdoor Circuit Breaker
Pole-mounted Outdoor Circuit Breaker
Juhongkai is a professional pole mounted circuit breaker manufacturer, offering outdoor units including vacuum breakers and automatic reclosers built for harsh environments, with high protection, durability, and OEM custom options.
1. Outdoor-Focused R&D Capability: The first domestic enterprise to complete R&D, network access testing, and batch supply of *primary-secondary integrated pole-mounted circuit breakers*. Specialized in 12kV outdoor scenarios, with products meeting IP54/IP65 protection standards (dust-proof, water-proof).
2. CNAS-Accredited In-House Lab (Outdoor Durability Testing)
Lab certified by CNAS – conducts targeted tests for pole-mounted breakers:
Extreme temperature resistance (-40℃~+70℃)
Lightning impulse withstand test
Mechanical operation life test (≥10,000 times)
Salt spray corrosion test (for coastal/outdoor projects)
3. Smart Manufacturing & Quality Control: Equipped with a "smart quality control brain" and automated assembly lines, focusing on key processes of outdoor products (e.g., sealant application, metal shell anti-corrosion treatment) to ensure batch consistency.
4. Mature Batch Supply Capacity: Stable supply chain for core components (vacuum interrupters, electronic CTs), supporting urgent outdoor project timelines (e.g., 20-day delivery for ZW32-12 batch orders).
Pole Mounted Outdoor Circuit Breaker (PMCB) is a robust, medium-voltage switchgear device installed on utility poles to protect and control power distribution lines, automatically or remotely opening circuits to clear faults (like short circuits) and then reclosing to restore power, using vacuum interruption technology for reliability in harsh outdoor conditions, common in smart grids and rural areas.
Protection: Interrupts overload, short-circuit, and load currents to safeguard equipment and prevent outages.
Automation (Auto-Recloser): Automatically re-energizes lines after temporary faults, improving reliability.
Vacuum Interruption: Uses vacuum chambers to extinguish arcs efficiently and quietly, with minimal maintenance.
Durability: Designed for extreme temperatures, wind, and pollution levels.
Integration: Supports remote monitoring and control for smart grid applications.
Vacuum Circuit Breakers (VCB): Most common, using vacuum for arc quenching (e.g., ZW32 series).
SF6/N2 Hybrid: Uses Sulfur Hexafluoride (SF6) or Nitrogen (N2) for insulation.
Solid Dielectric: Uses solid insulation for compact, eco-friendly designs.
Integrated: Combines circuit breaker, switch, and earthing disconnector in one unit.
Rural and urban overhead distribution networks (11kV-40.5kV).
Substations.
Renewable energy integration.
Smart grid automation.
"There is always a ring main unit suitable for you!" Juhonkia continues to introduce new products in the field of ring main units. The ring main unit series products achieve full coverage of voltage levels and different insulation media products. It is the first domestic enterprise to simultaneously complete the R&D, manufacturing, network access testing and batch supply of standardized and customized SF6 gas insulation, solid insulation, environmentally friendly gas insulation, atmospheric air insulated ring main switchgear primary and secondary integrated ring main switchgear.
Hangzhou Metro
Wind power
