Vacuum Switching Equipment Manufacturer | Vacuum Interrupter & Medium Voltage Solutions
Shone Vacuum designs and manufactures vacuum switching components and medium voltage equipment - vacuum interrupters, circuit breakers, embedded poles, disconnectors and contactors - for power distribution, industrial and mining applications.
Medium Voltage Vacuum Switching Product Range
Select a category to view configurations, advantages and typical applications. Every product is engineered for reliable arc interruption across medium voltage systems and backed by our in-house testing and quality control.
- 01Vacuum Interrupter
- 02Vacuum Circuit Breaker
- 03Embedded Pole
- 04Disconnector
- 05Vacuum Contactor
Vacuum Interrupter
Core Switching Component for Medium Voltage Electrical SystemsVacuum interrupters are the core arc-extinguishing components at the heart of modern medium voltage switching. Sealed in a ceramic or glass envelope under high vacuum, they interrupt current the instant the contacts separate - with no gas, no fumes and minimal maintenance. Shone Vacuum supplies interrupters configured for a wide range of switchgear and apparatus.
Available Configurations
- Vacuum interrupter for VCB
- Vacuum interrupter for LBS (load break switch)
- Vacuum interrupter for Contactor
- Vacuum interrupter for Recloser
- Ceramic & glass envelope options
Applications
- Medium voltage switchgear
- Power distribution equipment
- Industrial electrical systems
- Renewable energy systems
Vacuum Circuit Breaker
Medium Voltage Vacuum Circuit Breakers for Power Distribution ProtectionVacuum circuit breakers use vacuum interruption technology to reliably make and break medium voltage circuits under both load and fault conditions. With no SF6 gas and low maintenance, they are the preferred choice for substations, industrial plants and distribution networks worldwide.
Product Range
- Indoor Vacuum Circuit Breaker
- Outdoor Vacuum Circuit Breaker
- High Voltage Vacuum Circuit Breaker
- Low Voltage Vacuum Circuit Breaker
Applications
- Substations
- Industrial power systems
- Distribution networks
- Renewable integration
Embedded Pole
Integrated Vacuum Interrupter Pole AssemblyEmbedded poles integrate the vacuum interrupter, conductive parts and solid insulation into a single sealed pole unit. This eliminates exposed conductors, greatly improves insulation and protects the switching element from dust, moisture and pollution.
Advantages
- Compact structure
- Improved insulation performance
- Protection against environmental conditions
- Reduced maintenance
Applications
- Medium voltage switchgear
- Vacuum circuit breakers
- Ring main units
Disconnector
Medium Voltage Isolation Switch ComponentsDisconnectors provide a visible, safe isolation point for maintenance and switching in power systems. Shone Vacuum supplies robust isolation switch components built for reliable performance in switchgear, substations and industrial distribution.
Applications
- Switchgear systems
- Substations
- Industrial power distribution
- Ring main units
Vacuum Contactor
Vacuum Switching Solution for Frequent Operation ApplicationsVacuum contactors are designed for applications that demand frequent switching - such as motor starting, capacitor switching and industrial control. The vacuum bottle ensures long mechanical and electrical life with consistent, maintenance-free performance.
Applications
- Motor control
- Industrial equipment
- Mining electrical systems
- Capacitor banks
Applications of Vacuum Switching Equipment
Procurement searches often target a specific application - explore how Shone Vacuum components perform across industries, and which product fits your operating environment.
Power Distribution
Used in medium voltage switchgear and distribution systems for reliable circuit control and protection. Vacuum devices help utilities and operators reduce maintenance while improving network availability.
Industrial Electrical Systems
Applied in factories, automation lines and heavy electrical equipment where continuous, dependable operation matters. Compact vacuum switching saves panel space on the factory floor.
Mining Power Systems
Designed for mining equipment requiring compact, protected and explosion-resistant switching solutions that withstand harsh, dusty and vibration-prone environments.
Renewable Energy Systems
Used in medium voltage switching applications for solar and wind power systems, supporting grid connection and safe isolation of distributed generation assets.
Railway & Infrastructure
Suitable for electrical distribution and traction power systems in infrastructure projects, where reliability and compact installation are critical to uninterrupted service.
Custom OEM Projects
Tailored vacuum switching components developed for switchgear manufacturers and system integrators - from parameter customization to private-label production under your brand.
How to Select the Right Vacuum Switching Product?
Choosing the correct product starts with your system voltage, current duty and how the device will be used. Use the guide below to map your requirement to the right Shone Vacuum solution.
Voltage Rating
Select products according to system voltage requirements:
Most Shone Vacuum components are built for the 12–40.5kV medium voltage band and can be specified to your exact system voltage.
Current Rating
Consider the following when specifying current:
- Rated current - continuous load capability for normal operation
- Short circuit breaking current - fault interruption level required
- Switching frequency - operations per hour and expected service life
| Application | Recommended Product |
|---|---|
| Circuit Protection | Vacuum Circuit Breaker |
| Switching Component | Vacuum Interrupter |
| Motor Control | Vacuum Contactor |
| Isolation | Disconnector |
| Compact Switchgear | Embedded Pole |
Technical Parameters
Typical specifications of Shone Vacuum switching components. Values are customizable per application - contact our engineering team for a tailored datasheet.
| Rated Voltage | Up to 40.5 kV |
|---|---|
| Rated Current | Customized according to application |
| Rated Short-circuit Breaking Current | Up to 31.5 kA (typical, by design) |
| Frequency | 50 / 60 Hz |
| Arc Extinction Medium | Vacuum |
| Interrupter Envelope | Ceramic / Glass (by model) |
| Mechanical Endurance | 10,000+ operations (typical) |
| Installation Type | Indoor / Outdoor |
| Application | MV Switchgear |
| Standards | IEC Related Standards |
Customized Vacuum Switching Components
Shone Vacuum supports customized development according to customer requirements - from electrical parameter customization and structural modification to full OEM production and component integration support, guiding you from concept to certified delivery.
Electrical Parameter Customization
Tailored voltage, current and breaking capacity to match your system specification and duty cycle.
Structural Modification
Mechanical dimensions, terminals and interfaces adapted to fit your existing design and panel layout.
OEM Production
Private-label manufacturing with your branding, labels and custom packaging for the end market.
Component Integration Support
Engineering assistance for system-level integration, testing and documentation of the finished assembly.
Suitable for
- Switchgear manufacturers
- Electrical equipment manufacturers
- System integrators
Frequently Asked Questions
Need a Vacuum Switching Solution?
Tell us your voltage, current and application - our engineering team will recommend the right product and support OEM/ODM development from prototype to volume production.
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