What is a switchgear ?
Electrical switchgear, also known as complete switchgear or distribution panels, serves as the core node equipment for power distribution and control within substation systems. It is a complete electrical assembly that integrates components such as circuit breakers, disconnect switches, load switches, and fuses into enclosed or semi-enclosed metal cabinets according to specific wiring requirements. Positioned as a critical hub between the power generation side and the consumption side, it undertakes core functions including power distribution, control, protection, and monitoring.
About us
LVMA has been designing and manufacturing medium voltage switchgear for 21 years，Our AIS, GIS, and solid-insulated switchgear meetIEC 62271 and CE standards -tested, certified, and delivered directly from our50,000 m2 factory.
Serving 200+ enterprise clients across 40+ countries.....
How to Choose MV Switchgear
The insulation inside a switchgear is the core. which determines size, safety, and durability
12kV·24kV·40.5kV ｜ AIS·GIS·SIS ｜ Custom Solutions in 10 Days
Air-Insulated Switchgear (AIS)
people also call it Metal-Clad Switchgear
It uses air gaps inside a solid metal cabinet for insulation. The breaker can be rolled out easily for safe, quick service. Choose AIS for main power rooms where access and proven reliability matter most.
Gas-Insulated Switchgear (GIS)
Compact & rugged. Sealed metal tank with insulating gas. Small, dust-proof, maintenance-free. Ideal for tight spaces, harsh sites and critical networks.SF6 enables ultra-compact design but is a strong greenhouse gas, so the industry is shifting to eco-friendly alternatives.
Solid-Insulated Switchgear (SIS)
The modern, green choice. Key components are cast in solid epoxy resin. It runs without any insulating gas, making it incredibly tough and gentle on the planet. This makes it the clear next-generation choice for sustainable sites and tough operating environments.
Voltage level classification
12 kV series
Safe and stable, with extremely strong adaptability
24 kV series
Reliable performance and high protection level
40.5 kV series
With high insulation, large capacity and high protection features
Make customers feel confident when making a purchase
Sufficient guarantee:
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IEC 62271 Certified
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CE Marked
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21-Year Manufacturer
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10-Day Lead Time
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200+ Enterprise Clients
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Custom OEM Available
Featured switchgear
Explore our comprehensive range of standard switchgear, delivering exceptional performance across a wide array of parameters. Should our standard offerings not fully meet your specific requirements, our expert team stands ready to provide tailored switchgear solutions for your power system.
Core Advantages of Design
Protective features: Fully enclosed + five-segment interlocking mechanism, with no blind spots in electrical safety
Integration: Integrated layout of components, fewer failure points and greater stability
Maintainability: Modular pull-out design, making maintenance and capacity expansion extremely convenient
Compatibility: Supports multiple voltage levels and various models, covering all types of power distribution scenarios
Control and Protection Function: Integrated monitoring and protection, with rapid and accurate handling of faults
Transform Your Power Needs
► Optimize the overall design of switchgear
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Customize switchgear combinations for multiple voltage levels
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Tailor designs to specific application scenarios
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Precision manufacturing based on technical drawings
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Process and produce dedicated custom nameplates
For customized switchgear solutions, please contact LVMA
Why Choose LVMA as Your Switchgear Manufacturer
Strong R&D Capability
We have an experienced R&D team comprised of electrical engineers, process specialists, and other professionals. They continuously enhance their technical capabilities in switchgear design, material application, and manufacturing processes.
The R&D center is equipped with advanced research and testing facilities capable of performing performance testing, reliability verification, environmental simulation, and other tasks.
Exceptional Quality Control
The switches manufactured by our factory have obtained international authoritative certifications such as CE and IEC. Before leaving the factory, all products undergo a series of rigorous tests including main circuit insulation resistance testing, power frequency withstand voltage testing, energization testing, and protective function testing.
Efficient Manufacturing
With our highly trained workforce and state-of-the-art manufacturing facilities, we can complete switchgear production in as little as 10 days and ship directly from the factory.
Proven Expertise, Customized Solutions
LVMA has 21 years of experience in providing successful power solutions for various industries. We are a reliable manufacturer of switches that integrates R&D, production and sales. Whether it's complex industrial applications or customized power distribution projects, we can ensure that we provide you with effective solutions and professional technical guidance.
Q&A about Medium Voltage Switchgear
Q: Can the switchgear be expanded? What should be noted when expanding it?
A: The modular designed switchgear can be expanded as needed. Before expansion, it is necessary to confirm the remaining capacity of the busbar and the space of the cabinet. The operation should be carried out by professionals to ensure that the overall parameters match after expansion and comply with safety regulations.
Q: What key points should be noted during the daily operation and maintenance of switch cabinets?
A: ① Regularly clean the interior of the cabinet to prevent dust accumulation; ② Tighten the connection terminals to prevent poor contact and overheating; ③ Test the insulation resistance and grounding resistance to ensure the values meet the standards; ④ Verify the effectiveness of the five-prevention interlock function and prohibit unauthorized short-circuiting.
Q: What core tests will be conducted on the switch cabinets before they are manufactured?
A: Insulation, withstand voltage, mechanical operation, grounding, wiring / Visual inspection.
Q: What parameters need to be provided for customization?
A: Voltage / Current, Short-circuit Capacity, Scenario, Function, Circuit Number, Installation Size.
Q: How long is the service life?
A: Typically, it lasts for 15 to 20 years. For regular maintenance, it can be extended to around 25 years.
Q: How to choose between the pull-out type and the fixed type?
A: Removable design for easy maintenance, suitable for high-frequency operation and maintenance; Fixed design has lower cost, suitable for simple power distribution.
As one of the most professional manufacturers and suppliers of high-voltage switches in China, we are renowned for our high-quality products and reasonable prices. We welcome you to purchase high-voltage switchgear from our factory at any time. If you need customized design services, please contact us.