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).
Rural and urban overhead distribution feeders
Wind & solar farm output lines exposed to weather
Automatic recloser for grid reliability
Weatherproof design: high IP rating, UV / corrosion / moisture resistant
High performance: vacuum interrupters, high breaking capacity
OEM & Customization: tailored for voltage / current / controls
Certifications & Reliability: IEC / ISO / CE and passed rigorous testing
After‑sales support: spare parts, field service, technical assistance
"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.