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Brand: Henan Mingkong
Model: HXGN15-12
Product Type: Indoor Unit Type AC Metal-Enclosed Ring Network Switchgear (Ring Main Unit)
Rated Voltage: 12kV
Core Feature: Compact modular design, SF6 load switch, IP3X protection, manual/electric operation options
Key Advantage: Low maintenance, five-proof mechanical interlocks, high short-circuit withstand capability
Application: Urban distribution networks, commercial buildings, industrial parks, renewable energy projects
Conditions of Use: Altitude ≤ 2000m, ambient temperature -25°C to +40°C, humidity ≤ 95% daily average
Introduction
A: Product Overview
As a cost-effective and reliable solution for your 12kV power distribution projects, the HXGN15-12 Unit Type AC Metal-Enclosed Ring Network Switchgear is engineered to meet the core demands of industrial, commercial, and utility applications. Developed based on advanced foreign technology and optimized for urban and rural grid transformation needs, this switchgear complies with IEC 62271-200 and GB 3906 standards, ensuring full compliance with international safety and performance requirements. Every unit undergoes rigorous testing to guarantee stable, long-term operation, giving you peace of mind for critical power distribution systems.
Designed with your project flexibility in mind, this switchgear supports both manual and electric operation modes, with customizable options for ABB SF6 breakers or vacuum circuit breakers to match your specific system needs. The main switch, operating mechanism, and core components are either original ABB parts or domestically assembled with imported components, delivering consistent performance you can trust. Its compact, lightweight design (650/850×900×2200mm) minimizes installation space requirements, making it ideal for urban substations, commercial buildings, and industrial parks where footprint efficiency is critical.
Safety and reliability are at the forefront of its design. With an IP3X protection rating and robust mechanical interlocks, it prevents misoperation and enhances personnel safety during routine maintenance. Key performance parameters, including 20kA/3s short-time withstand current, 50kA peak withstand current, and 75/85kV lightning impulse withstand voltage, ensure superior fault protection and insulation strength, reducing downtime and maintenance costs. The CNC-machined cabinet structure ensures durability, even in environments with moderate humidity and temperature fluctuations.
Built for low maintenance and long service life, the HXGN15-12 operates reliably in challenging environments, including altitudes up to 2000m and temperatures from -25°C to +40°C. Its pollution-free design and minimal upkeep requirements make it a cost-effective choice for your ring network distribution projects, delivering consistent performance while lowering total lifecycle costs. Whether you’re upgrading existing infrastructure or building new distribution networks, this switchgear offers the reliability and flexibility your project demands.
B: Model meaning

C : Conditions of Use
- The altitude does not exceed 2000m;
- Ambient temperature:-25°C ~+40°C;
- elative humidity:the daily average is not more than 95%;the monthly average is not more than 90%;
- Ambient environment: The surrounding air is not obviously polluted by corrosive gases or flammable gases, water vapor,etc.
- No frequent and severe vibrations.
D: The main technicalparameters

E: Operating
For the switchgear with load switch, the special operation handle is used to operate on the front of the switchgear. Thefront of the operating mechanism has upper and lower operating holes, the upper part is the grounding swich operatinghole, and the lower part is the load switch operating hole. During operation, the handle rotates clockwise to the switchclosing direction, and counterclockwise rotation to the switch opening direction. It can also be equipped with electric splitand closing devices for remote operation.(Note: Sometimes the load switch does not have a grounding switch, and thegrounding switch operating hole is used as the door unlocking).
For the switchgear with the combined electric appliance, except for the manual opening and closing button for the loadswitch opening operation, the other operation sequence is the same. The lower grounding switch of the combinedelectrical cabinet is identical to the uppergrounding switch through the connecting rod. The residual small current on thefuse holder is released when the switch is closed to improve the safety when replacing the fuse.
F: Shape and installation dimensions (mm)

F: Related Products
1. XGN2-12 Box Type Fixed Metal-Enclosed Switchgear
For projects requiring a robust 12kV fixed distribution solution, the XGN2-12 offers high short-circuit withstand strength and five-proof interlock safety, ideal for industrial substations and mining facilities.
2. KYN28A-24 Armored Removable AC Metal-Enclosed Switchgear
Upgrade to higher-voltage systems with the KYN28A-24, a 24kV draw-out switchgear featuring easy maintenance and anti-misoperation interlocks, perfect for power plants and large-scale distribution networks.



