Indoor Vacuum Circuit Breakers
Advanced indoor vacuum circuit breakers covering 12kV, 24kV, and 40.5kV voltage classes with Cooper Edison Research Center technology.
VN3-12E Indoor Vacuum Circuit Breaker (12kV)
The VN3-12E is a 12kV indoor vacuum circuit breaker providing reliable control and protection for 10kV power systems. Features ultra-low resistance vacuum arc chambers and a modular spring mechanism designed for minimal maintenance.
VN2-24E Indoor Vacuum Circuit Breaker (24kV)
The VN2-24E is a 24kV indoor vacuum circuit breaker providing reliable control and protection for 24kV power networks. Supports operation at altitudes up to 4,500 meters and is compatible with 12kV networks.
VN1-40.5E Indoor Vacuum Circuit Breaker (40.5kV)
The VN1-40.5E is a 40.5kV indoor vacuum circuit breaker for 36kV and 40.5kV power networks. Offers the highest voltage class in the VN series with 20,000 mechanical operations life and up to 3150A rated current.
CE-12 Edison Indoor Vacuum Circuit Breaker
The CE-12 Edison series indoor vacuum circuit breaker is a flagship product featuring 50,000-cycle mechanical life and up to 5000A-50kA ratings. Designed for power grids, generation, oil & gas, metallurgy, rail transit, and infrastructure sectors.
CEi-12 Intelligent Indoor Vacuum Circuit Breaker
The CEi-12 is a next-generation intelligent circuit breaker with built-in online monitoring, fault diagnosis, remote control, and data transmission capabilities. Reduces maintenance costs through predictive intelligence.
CVG-12 Indoor Vacuum Circuit Breaker
The CVG-12 is a mature and stable 12kV indoor vacuum circuit breaker jointly developed by Cooper and domestic R&D teams. Features advanced APG epoxy casting technology for reliable embedded pole insulation.
CVG-40.5 Indoor Vacuum Circuit Breaker
The CVG-40.5 extends the proven CVG platform to 40.5kV voltage class, featuring the same advanced APG epoxy encapsulation technology. Jointly developed by Cooper and domestic research teams for high-voltage indoor switching.
Indoor Vacuum Circuit Breakers from NAIJI Electric
Premium indoor medium voltage vacuum circuit breakers from 12kV to 40.5kV with up to 50,000 mechanical operations life. Cooper Edison technology.
As a professional manufacturer with over 35 years of experience, NAIJI Electric produces high-quality products that meet international standards including IEC 62271. Our products are exported to more than 20 countries across Southeast Asia, Middle East, Africa, Latin America, and CIS regions.
All products undergo rigorous factory testing including power frequency withstand, lightning impulse withstand, and mechanical endurance tests before shipment. We offer both standard models and custom configurations to meet your project-specific requirements.
Frequently Asked Questions
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