As the global demand for efficient and compact power distribution systems increases, the side mounted vacuum circuit breaker (VCB) has emerged as an innovative and space-saving solution for modern switchgear design. Built for safety, performance, and ease of maintenance, this breaker type is particularly suitable for medium-voltage systems used in industrial, commercial, and utility applications.

At Degatech Electric, we design and manufacture high-quality side mounted vacuum circuit breakers that deliver superior reliability, durability, and eco-friendly performance for a wide range of electrical distribution systems.

What Is a Side Mounted Vacuum Circuit Breaker?

A side mounted vacuum circuit breaker is a form of VCB installed on the side wall of a switchgear compartment or cubicle, instead of the conventional front-mounted or draw-out position. The side-mounted configuration allows for more flexible panel designs, making it ideal for compact substations, modular switchgear, or custom-built enclosures.

Just like traditional VCBs, the side mounted type uses a vacuum interrupter to extinguish electrical arcs during switching or fault conditions. The arc extinction process happens inside a vacuum chamber, ensuring clean, fast, and safe disconnection without the use of harmful gases such as SF₆.

Key Features and Advantages

1. Compact Structural Design
   The side-mounted configuration allows for a smaller footprint and optimized use of cabinet space, especially in indoor substations or industrial power rooms.

2. Enhanced Safety and Protection
   The breaker’s sealed vacuum interrupter and solid insulation provide excellent dielectric strength and minimize arc flash risks.

3. Ease of Installation and Maintenance
   Side-mounted VCBs are designed for quick installation, easy access to terminals, and convenient inspection or replacement without dismantling the entire panel.

4. Long Mechanical and Electrical Life
   The vacuum interrupter ensures high endurance against mechanical operations and electrical fault interruptions, supporting thousands of cycles.

5. Eco-Friendly Operation
   As with all vacuum circuit breakers, side-mounted VCBs are SF₆-free, making them an environmentally responsible alternative to gas-insulated breakers.

Applications of Side Mounted VCBs

Side mounted vacuum circuit breakers are widely used in various medium voltage (up to 40.5kV) applications, such as:

• Industrial Distribution Systems – For protection of motors, transformers, and capacitor banks.

• Power Utilities – For feeder line and transformer protection in substations.

• Renewable Energy Plants – Ensuring safe connection and isolation for solar or wind power systems.

• Commercial Buildings – Reliable protection for data centers, hospitals, and infrastructure.

In every case, side mounted VCBs offer a smart combination of safety, space optimization, and low maintenance.

Technical Advantages Over Conventional Mounting

This comparison shows why the side mounted VCB is becoming increasingly popular for customized or space-constrained switchgear systems.

Degatech Electric – Trusted Manufacturer of Side Mounted Vacuum Circuit Breakers

Degatech Electric leads the industry with advanced side mounted vacuum circuit breakers that combine mechanical precision, robust insulation, and superior safety features. Each product undergoes rigorous testing to ensure reliable operation under diverse electrical conditions.

With a commitment to eco-friendly innovation and sustainable energy systems, Degatech Electric continues to provide customers with dependable medium-voltage switchgear solutions designed for the future.

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👉 Degatech Electric – Side Mounted Vacuum Circuit Breaker Products