NAIJI.

Specialized Circuit Breakers

Specialized vacuum circuit breakers for capacitor switching and generator protection with extended mechanical life.

Application-specific engineering designExtended mechanical life up to 30,000 cyclesAdvanced dual-chamber vacuum arc technologyHigh back-to-back capacitor switching capabilityPermanent magnet operating mechanismCompliance with specialized standards
CES 40.5kV Capacitor Switching Circuit Breaker

CES 40.5kV Capacitor Switching Circuit Breaker

The CES-40.5 is a specialized outdoor vacuum circuit breaker designed for reactive power compensation capacitor bank switching at 35kV voltage levels in high-voltage substations (500kV, 330kV, 220kV). Features advanced dual-chamber vacuum extinction and up to 1,500A back-to-back switching capacity.

Rated Voltage40.5 kV
ApplicationCapacitor bank switching at 35kV
Mechanical Life30,000 operations
DetailsGet a Quote
CEG Generator Vacuum Circuit Breaker

CEG Generator Vacuum Circuit Breaker

The CEG is a new-generation generator-specific vacuum circuit breaker designed for thermal power plants, hydroelectric stations, biomass generation, and industrial self-supplied power systems. Features 8 breaking cycles at rated short-circuit current and peak withstand up to 140kA.

ApplicationGenerator switching
Short-Circuit Breaking Cycles8 cycles
DC ComponentUp to 81%
DetailsGet a Quote

Specialized Circuit Breakers from NAIJI Electric

Purpose-built vacuum circuit breakers for capacitor bank switching and generator protection applications.

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

What types of specialized circuit breakers does NAIJI Electric manufacture?
NAIJI Electric manufactures CES 40.5kV Capacitor Switching Circuit Breaker, CEG Generator Vacuum Circuit Breaker. All products are manufactured to IEC international standards with ISO 9001 certified quality management.
What is the lead time for specialized circuit breakers?
Standard lead time is approximately 30 days for most models. Custom configurations may require additional time. Contact our sales team for a precise delivery schedule based on your order quantity.
Does NAIJI Electric offer OEM manufacturing for specialized circuit breakers?
Yes, NAIJI Electric offers OEM and custom manufacturing services. We can produce products with your branding and customize technical specifications to meet your project requirements. Our monthly production capacity is 250+ units.
What certifications do your specialized circuit breakers carry?
Our products are manufactured under ISO 9001, ISO 14001, and OHSAS 18001 certified quality systems. Products carry CE and CCC certifications and are designed to comply with IEC 62271 international standards.

Need Specialized CB for Your Project?

Contact our technical team for product selection, pricing, and custom configurations.

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