









HXGN17-12 AC metal ring network switchgear (vacuum switch)
Brand: Henan Mingkong
Model: HXGN17-12
Product Type: Indoor AC Metal-Enclosed Ring Network Switchgear (Vacuum Ring Main Unit)
Rated Voltage: 12kV
Core Feature: Compact integrated design, vacuum load switch, spring operating mechanism, IP3X protection, manual/electric dual operation options
Key Advantage: No combustion/explosion risk, five-proof mechanical interlocks, high short-circuit withstand capability, low maintenance
Battery Application: Urban power grid transformation, residential complexes, industrial parks, municipal distribution projects
Conditions of Use: Altitude ≤1000m, ambient temperature -15°C to +40°C, humidity ≤95% daily average
Introduction
A: Product Overview
HXGN17-12 AC metal ring network switchgear (vacuum switch) is a compact, high-performance 12kV ring main unit designed for urban power grid transformation and construction projects. Built to comply with GB3906 and IEC60420 international standards, this metal-enclosed switchgear is widely used in power distribution systems, reliably breaking load and short-circuit currents while meeting strict safety and performance requirements.
Equipped with FZRN25 and FZRN21 vacuum load switches and a spring operating mechanism that supports both manual and electric operation, it offers flexible control for different site needs. The built-in five-proof interlock system prevents misoperation such as live switching and grounding closing, while its fully enclosed design eliminates combustion and explosion risks, making it ideal for industrial substations, commercial buildings, residential complexes and municipal power distribution projects.
With a small footprint and high integration, this 12kV ring main unit delivers stable performance even in demanding environments. It operates reliably at altitudes up to 1000m and temperatures from -15°C to +40°C, with a rated current of 630A and short-circuit breaking capacity up to 31.5kA. These specifications ensure it can handle both standard distribution and heavy-load industrial applications, reducing downtime and long-term maintenance costs for your power distribution system.
As a key component of modern power grids, the HXGN17-12 AC metal ring network switchgear combines safety, reliability and cost-effectiveness. Its modular design allows for flexible configuration to meet diverse project requirements, while its robust construction ensures long-term durability. Whether used in new power grid construction or renovation projects, this vacuum switchgear provides a safe, efficient and stable solution for your power distribution needs.
B: Model meaning

C: Conditions of Use
- Altitude: no more than 1000m;
- Ambient temperature: upper limit +40°C,;
- lower limit-15°C;Relative humidity: Humidity conditions: the daily average value is not more than 95%, the daily average value of water vaporpressure does not exceed 2.2kPa; the monthly average value is not more than 90%, and the monthly average value of watervapor pressure does not exceed 1.8kPa;
- Earthquake intensity:no more than 8 levels;
- There is no obvious pollution such as corrosive or flammable gas;
D: The main technical parameters

The main technical parameters of the HXGN17-12 AC metal ring network switchgear are designed to meet the strict safety and reliability standards required for industrial and municipal power distribution projects. With a rated voltage of 12kV, a main busbar rated current of 630A, and a short-circuit breaking capacity of 31.5kA, this switchgear delivers stable, high-performance operation even under demanding load conditions.
It supports both FKN12-12 and FZN25-12 load switches, with high power frequency and lightning impulse withstand voltage ratings, ensuring robust protection against electrical faults. The long electrical life of over 100 operations and compatibility with standard fuse types make it a low-maintenance, cost-effective solution for power grid transformation, commercial buildings, and industrial facilities.
E: Related Products
1.If you are looking for a complete power distribution solution, we invite you to explore our full range of 12kV switchgear products, including our KYN28A-12 armored removable AC metal-enclosed switchgear and other high-voltage equipment. These products are designed to work seamlessly with the HXGN17-12 ring network switchgear, offering the same level of reliability and compliance with international standards.
2.If you are interested in HXGN17-12 AC metal ring network switchgear, we also recommend our HXGN15-12 SF6 Ring Main Unit. Both belong to 12kV medium voltage switchgear, widely applied to urban power grid reconstruction, residential districts, industrial parks and municipal power distribution projects.
Whether you need additional switchgear units, matching components, or a custom-tailored system, our team is ready to provide professional support and solutions to meet your project requirements.



