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High Voltage Vacuum Circuit Breaker – Reliable, Eco-Friendly Power Protection from Fenarro

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High Voltage Vacuum Circuit Breaker – Reliable, Eco-Friendly Power Protection from Fenarro

Fenarro Power Technology delivers IEC & GB certified outdoor and indoor high voltage vacuum circuit breakers (up to 40.5kV). Zero SF6 emissions, low maintenance, superior arc quenching – trusted in substations, solar/wind farms, and industrial grids worldwide.
 

VCB Indoor & Outdoor Overview

Fenarro Indoor High Voltage Vacuum Circuit Breaker
Indoor VCB
Voltage Range 12-40.5 kV
Switchgear Integration

Indoor High Voltage Vacuum Circuit Breakers

Designed for indoor power distribution and switchgear systems, with flexible configurations for protection, control and frequent switching requirements.

Flexible Installation Fixed, withdrawable and embedded-pole options are available.
Switchgear Applications Suitable for substations, switchgear and industrial systems.
Reliable Operation Selected models support repeated switching and reliable short-circuit interruption.
VS1 / FZN63 FVBP FZN23 FZN85
Explore Indoor VCB Series →
Fenarro Outdoor High Voltage Vacuum Circuit Breaker
Outdoor VCB
Voltage Range 12-40.5 kV
Outdoor Distribution

Outdoor High Voltage Vacuum Circuit Breakers

Engineered for outdoor distribution networks, substations and feeder protection applications requiring reliable operation.

Outdoor Adaptability Designed for outdoor distribution environments and demanding operating conditions.
Distribution Protection Suitable for feeder protection, fault interruption and medium voltage distribution systems.
Intelligent Functions Selected models support sectionalizing, automation and intelligent control functions.
FZW8 FZW20 FZW32 FZW7
Explore Outdoor VCB Series →

VCB Series Performance Overview

Voltage Range Indoor + Outdoor
12 – 40.5 kV

Fenarro vacuum circuit breaker families cover multiple medium-voltage classes for indoor switchgear and outdoor distribution applications.

Rated Current Selected Indoor Series
Up to 4000 A

High-current indoor VCB configurations are available for demanding switchgear and power distribution requirements.

Breaking Current Selected VCB Models
Up to 50 kA

Selected VCB configurations provide high short-circuit interruption capability for reliable system protection.

Mechanical Life Selected VCB Series
Up to 30000 ops

Selected indoor and intelligent outdoor VCB designs support frequent operation with extended mechanical endurance.

i

Performance values shown above represent the maximum ratings available across selected Fenarro VCB models. Final electrical parameters depend on the specific series and configuration selected.

VCB Indoor vs Outdoor Comparison

Selection Factor
INDOOR VCB Switchgear Integration For indoor electrical rooms and switchgear systems
OUTDOOR VCB Outdoor Distribution For outdoor feeders and distribution networks
01 Installation Environment
Indoor

Designed for installation inside switchgear, electrical rooms, substations and industrial power distribution facilities.

Outdoor

Designed for direct outdoor installation in distribution networks, substations and feeder protection applications.

02 Mounting & Integration
Multiple Switchgear Formats

Available across selected series in fixed, withdrawable, side-mounted and embedded-pole configurations.

Flexible Outdoor Installation

Selected models support pole-mounted, suspension or base-mounted installation, depending on the circuit breaker configuration.

03 Typical Applications
Internal Power Distribution

Industrial plants, substations, switchgear cabinets, mining facilities and specialized indoor distribution systems.

Distribution Network Protection

Urban and rural distribution networks, overhead feeders, pole-mounted applications and outdoor substations.

04 Automation & Protection
Switchgear Control

Selected indoor models support permanent-magnet mechanisms, intelligent control and frequent switching requirements.

Distribution Automation

Selected outdoor models support sectionalizing, fault isolation, automatic reclosing and intelligent controller integration.

05 Environmental Design Focus
Switchgear Environment

Focused on compact integration, insulation coordination and reliable operation within indoor electrical equipment.

Outdoor Adaptability

Selected models are engineered for demanding temperature, humidity, wind and pollution conditions in outdoor service.

06 Representative Series
VS1 / FZN63 FVBP FZN23 FZN85
FZW8 FZW20 FZW32 FZW7
CHOOSE INDOOR VCB WHEN
The breaker will be integrated into indoor switchgear.

Suitable when your project prioritizes switchgear integration, fixed or withdrawable installation, compact indoor distribution and frequent switching.

CHOOSE OUTDOOR VCB WHEN
The breaker will operate directly in an outdoor distribution network.

Suitable when the project requires outdoor feeder protection, pole-mounted installation, sectionalizing or distribution automation functions.

 
Still deciding between Indoor and Outdoor VCB?

Share your installation environment, system voltage, rated current, breaking requirement and mounting configuration with Fenarro for model selection support.

Discuss Your Project →
High Voltage Vacuum Circuit Breakers (VCB) 
Direct from Manufacturer​​​​​​​
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  • Outdoor High Voltage Vacuum Circuit Breaker
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    • FAMZ-3S-12 Outdoor Three-Phase Permanent Magnetic Vacuum Circuit Breaker
      FAMZ-3S-12 Outdoor Three-Phase Permanent Magnetic Vacuum Circuit Breaker
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      FZW7(FZW37A/FZW17)-40.5 Outdoor Vacuum Circuit Breaker
    • FZW10-12XDG Series Outdoor HV Dual-Power Transfer Device
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Indoor High Voltage Vacuum Circuit Breaker

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    Why Choose Fenarro High Voltage Vacuum Circuit Breakers?

    • Environmentally friendly
      vacuum interrupter technology eliminates SF6 gas (zero global warming potential).
    • Long service life
      up to 30,000 operations with minimal maintenance.
    • High reliability
      fast arc extinction, excellent dielectric strength.
    • Global export expertise
      90% products shipped to Middle East, Southeast Asia, Africa, Europe.
    • Custom solutions
      indoor/outdoor designs for 12kV–40.5kV applications.
    Get Your Free Technical Consultation Today

    Tell us your project needs, and our engineers will provide a tailored solution with detailed quotation and technical recommendations—free of charge.

    Fenarro has been committed to providing safe,  efficient and convenient solutions for power  systems since 2009

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     Email: julien@fenarro.com
      Mobile: +86-13962241135
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