Indoor High Voltage Vacuum Circuit Breakers - 12kV to 40.5kV Range

✓ 12kV-40.5kV

Voltage Range

✓ 25kA-31.5kA

Breaking Capacity

✓ IEC 62271

Standard

✓ Fixed & Withdrawable

Configuration

Fenarro supplies IEC 62271 compliant indoor high voltage vacuum circuit breakers from 12kV to 40.5kV, designed for high voltage switchgear systems, substations, and industrial power distribution applications. Featuring advanced vacuum interruption technology, our VCBs provide maintenance-free operation, reliable fault interruption, and long service life for demanding electrical systems.

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Indoor High Voltage Vacuum Circuit Breaker Product Series

Fenarro offers a complete range of indoor high voltage vacuum circuit breakers from 12kV to 40.5kV, including fixed and withdrawable configurations for switchgear systems, substations, and industrial power distribution applications.

Need Help Selecting the Right Vacuum Circuit Breaker?

Fenarro provides free technical consultation to help you select suitable indoor or outdoor vacuum circuit breakers based on voltage level, installation environment, and project requirements.

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Key Features of Indoor High Voltage Vacuum Circuit Breakers

Maintenance-Free Operation

Sealed vacuum interrupter chambers
No gas monitoring or replenishment required
Minimal contact erosion over lifetime
Permanent magnetic operating mechanism

High Breaking Performance

Short-circuit breaking capacity: 25kA to 31.5kA
Ultra-fast opening time: ≤45ms
High mechanical life: 30,000 operations
Low energy consumption operation

Compact & Flexible Design

Compact dimensions for switchgear integration
Withdrawable configuration for easy maintenance
Multiple mounting configurations available
Reduced floor space requirements

Why Choose Fenarro Indoor Vacuum Circuit Breakers

Fenarro provides reliable indoor vacuum circuit breaker solutions with proven performance, flexible configurations, and technical support for high voltage power distribution projects.

Complete Voltage Coverage

12kV–126kV solutions for indoor and outdoor power applications.

Certified Quality Control

Manufactured with strict processes and international testing standards.

Flexible Project Solutions

Multiple configurations for OEM, EPC, and utility projects.

Technical Support

Professional assistance from selection to project delivery.

Applications of Indoor High Voltage Vacuum Circuit Breakers

Fenarro indoor high voltage vacuum circuit breakers provide reliable switching and protection solutions for substations, industrial facilities, commercial power systems, and renewable energy applications.

Primary Distribution Substations

Ideal for 35kV/10kV distribution substations in urban areas, providing reliable feeder protection and transformer switching.

Industrial Manufacturing Plants

Suitable for heavy industries including steel mills, chemical plants, and automotive manufacturing with frequent switching requirements.

Commercial Building Power Systems

Perfect for high-rise buildings, shopping malls, and data centers requiring compact, reliable high voltage protection.

Renewable Energy Integration

Excellent for solar inverters and wind turbine connections where frequent operation and maintenance-free performance are critical.

Ready to Select the Right High Voltage Vacuum Circuit Breaker for Your Project?

Contact Fenarro’s engineering team for technical consultation, product selection support, and customized solutions based on your project requirements.

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FAQs About Fenarro's Circuit Breaker

Q What maintenance is required for indoor high voltage VCBs?

A Basic mechanical inspection and lubrication every 5 years or 5,000 operations
Q Can your high voltage VCBs be retrofitted into existing switchgear?

A Yes, we provide retrofit solutions for most major switchgear brands including Siemens, ABB, and Schneider
Q How often do vacuum interrupters need replacement?

A Vacuum interrupters typically last the entire mechanical life of the breaker (30,000 operations)
Q What is the typical delivery time for indoor high voltage VCBs?

A Standard products: 6-8 weeks; Custom configurations: 8-12 weeks
Q How to confirm payment?

A We accept payment methods such as wire transfer and PayPal. Other payment methods are also acceptable, please contact us before making payment through other methods. Additionally, a 30% deposit is feasible, and the balance should be paid before shipment.

Indoor High Voltage Vacuum Circuit Breaker Buying Guides

Explore technical guides and industry insights about vacuum circuit breakers, including indoor VCB selection, operating principles, applications, and comparisons with other high voltage switching technologies.

Can An Indoor VCB Be Installed in Outdoor Switchgear?

Should a 10kV system use 10kV or 12kV equipment? Why may a 35kV project specify 40.5kV switchgear? Can equipment marked 36kV replace equipment marked 40.5kV?These questions arise because nominal system voltage and highest voltage for equipment describe related but different values. The correct volta