Welcome to Shenzhen Dongshengyuan Electrical Equipment Co., Ltd.
Indoor Vacuum Circuit Breaker: The Proven Solution for Safe, Efficient & Reliable Power Distribution
Indoor Vacuum Circuit Breakers (IVCBs) have become a global standard for medium-voltage protection thanks to their high safety level, long service life, and excellent interrupting capabilities
Nov 21,2025
Indoor Vacuum Circuit Breakers (IVCBs) have become a global standard for medium-voltage protection thanks to their high safety level, long service life, and excellent interrupting capabilities. Whether applied in utilities, industrial plants, data centers, or smart buildings, an Indoor Vacuum Circuit Breaker ensures stable and efficient operation of electrical networks—meeting the world’s most demanding standards.
🔹 Why Indoor Vacuum Circuit Breakers Lead the Market
Indoor VCBs outperform traditional breakers because they utilize vacuum interrupter technology, which provides:
Arc-quenching in < 2–5 ms, minimizing equipment damage
Extremely high dielectric strength even in compact spaces
Eco-friendly operation — zero greenhouse gases like SF₆
Maintenance-free or ultra-low maintenance over tens of thousands of cycles
♻️ According to IEEE and IEC testing results, vacuum interrupter technology offers up to 30% longer mechanical endurance compared to air or oil breakers, and meets standards such as:
IEC 62271-100 (High-voltage switchgear and controlgear)
IEC 56 (High-voltage AC circuit breakers)
IEEE C37 Series (Medium-voltage circuit breakers)
📦 Key Advantages of Our Indoor Vacuum Circuit Breaker
⭐ 1. Ultra-Safe & High Interruption Performance
Our VCBs adopt premium vacuum interrupters with:
High short-circuit breaking capacity up to 50kA
Stable interruption even under frequent operations (ideal for industrial loads)
⭐ 2. Compact Design for Space-Limited Environments
Up to 35% smaller footprint than conventional breakers
Perfect for retrofit projects in existing switchgear rooms
⭐ 3. Intelligent Monitoring System
Integrated smart sensors provide:
🌡 Temperature monitoring
🔌 Contact wear tracking
📊 Real-time diagnostics
Supports Modbus, IEC 61850, and cloud-based systems.
⭐ 4. Industrial-Grade Durability
Mechanical endurance up to 30,000 operations
Resistant to dust, humidity, and harsh industrial conditions
Designed for 25+ years of stable operation
🏢 Commercial & Smart Buildings
Reliable medium-voltage distribution with minimal maintenance.
⚡ Utilities & Power Distribution Networks
Meeting high reliability requirements for substations and switching stations.
Data Centers & High-Tech Facilities
Zero-gas, clean, silent operation ideal for temperature-controlled environments.
We maintain ISO 9001 / ISO 14001 certified manufacturing
100% testing of every vacuum interrupter
In-house R&D center and global technical support
📩 Ready to Upgrade Your Power System? Contact Us Today!
Whether you’re planning a new project or modernizing existing switchgear, our engineering team can provide:
Technical consultation
Custom product configurations
System design support
Fast quotation services
👉 Contact Shenzhen Dongshengyuan Electrical Equipment Co., Ltd. today for technical consultation and customized quotations.
Inquiry Hotline: +86 135 5682 9425
Email: kimball@dsycn.com
Company Website: https://www.dsyswitchgears.com/
We look forward to hearing from you! Let us work together to create a safe and efficient power system!
Related News
From June 5th to 8th, 2025, Shenzhen Dongshengyuan Electrical Equipment Co., Ltd. (hereinafter referred to as "Dongshengyuan Electric") participated in the Southeast Asia Electricity and Energy Exhibition (SEAPAE) held in Jakarta, Indonesia. During the exhibition, the company highlighted its three core product lines: high-voltage and low-voltage distribution switchgear, intelligent circuit breakers, and environmentally friendly load switches. These products are designed to provide targeted solutions for the high temperature and high humidity environments commonly found in Southeast Asia, as well as the growing demand for new energy access. They have successfully attracted over 200 industry customers for business negotiations.
The difference between circuit breakers and vacuum circuit breakers
Circuit breaker is an abbreviation for pole type circuit breaker. Circuit breakers are also vacuum circuit breakers
1B601, Lefu Square, No. 481 Guangming Avenue, Dongkeng Community, Fenghuang Street, Guangming District, Shenzhen
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