Ceritified

CE、TUV、CB、RoHS

Service

ODM & OEM

Ceritified

ISO 9001:2008

Your Trusted Partner for High-Voltage Protection Solutions

VCB, Switchgear & Power Fuses Manufacturer,10 Years Expertise, 5,000+ Proven Installations. Factory-Direct Quality with International Certifications.
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About CNSOVIO

At CNSOVIO, we are experts in the research, development, and manufacturing of high-voltage transmission and distribution equipment. For years, we’ve focused on innovation and continuous improvement, integrating cutting-edge technology and rigorous quality testing. Our dedication ensures every product, from vacuum circuit breakers to switchgear and fuses, meets the highest global standards.

  • Independent R&D Capability: 25 technical patents
  • Strict Quality Control: Five production quality inspection processes, with additional pre-delivery quality inspections
  • Global Service Network: Products exported to 50+ countries and regions
  • Customized Solutions: Personalized product design based on client needs
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High-Voltage Equipment & Components

We specialize in the manufacturing of key high-voltage equipment. Discover our top-tier VCB, reliable switchgear, and a full selection of fuses, including both power fuses and electric fuses.

Partner With A Certified Factory For Superior High-voltage Equipment.

Get in touch to discuss your specific project needs.
CNSOVIO

Reliable Solutions for Your Electrical Systems

We've highlighted a few of our most sought-after products that are essential for modern power grids. From advanced switchgear to robust electric fuses, these items represent the best of our manufacturing capabilities and commitment to safety.
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CNSOVIO

Why Choose Us

We're not just a manufacturer; we're a reliable partner dedicated to your power system's safety. Our extensive experience and certifications ensure every product, from VCB to fuses and switchgear, is built to last.

Technical Consultation

Provide free technical consulting to help clients select the most suitable product solutions

Customized Solutions

Offer product customization services based on special application requirements

Professional Training

Provide product operation and maintenance training services for clients

Rapid Response

Respond to inquiries within 6 hours, provide solutions within 48 hours

cnsovio Office (1)

Our Certificate

CNSOVIO Occupational Health and Safety Management System Certification
CNSOVIO Quality Management System Certification
CNSOVIO Energy Management System and Annexes
CNSOVIO Environmental Management System Certification
CNSOVIO

What They Say

Our Blog

Latest News & Articles

Browse our latest articles, news and exhibition information
Outdoor pole-mounted vacuum circuit breaker in a distribution network

Vacuum Circuit Breaker Working Principle & Internal Components

Understand the vacuum circuit breaker working principle step by step — how the vacuum interrupter extinguishes arcs, what is inside a VCB, and how to

VCB vs SF6 circuit breaker comparison cover with arc quenching, voltage range, maintenance, cost of ownership and environmental impact icons

China VCB vs SF6 Circuit Breaker Which Is Better?

VCB vs SF6 circuit breaker comparison: interrupting medium, voltage range, maintenance, cost of ownership and environmental impact, with a clear decision guide for medium-voltage projects.

How to Choose a Vacuum Circuit Breaker A Practical Selection Guide

How to Choose a Vacuum Circuit Breaker A Practical Selection Guide

Step-by-step vacuum circuit breaker selection guide covering VCB ratings, voltage, current, short-circuit capacity, installation format, and environment.

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