XGN66-12 Box type fixed AC metal-enclosed switchgear
Brand: Henan Mingkong
Model: XGN66-12
Product Type: Indoor Box type fixed AC metal-enclosed switchgear
Rated Voltage: 3.6kV / 7.2kV / 12kV
Core Feature: Compact box-type design (50% smaller footprint), IP2X protection grade, standard VS1 vacuum circuit breaker, front access maintenance
Key Advantage: Five-defence mechanical interlock, reliable grounding system, pressure relief safety channels, low maintenance
Application: Urban substations, high-rise buildings, industrial plants, mining facilities, new energy power stations
Conditions of Use: Altitude ≤ 1000m, ambient temperature -25°C to +40°C, no explosive/corrosive gas environment
Introduction
A: Product Overview
The XGN66-12 Box type fixed AC metal-enclosed switchgear is purpose-engineered to meet the core requirements of industrial and utility buyers seeking a compact, cost-effective 12kV power distribution solution that balances safety, reliability, and operational efficiency. As a next-generation high-voltage switchgear, it fully complies with international standards including IEC 60298 and national GB 3906, ensuring compliance and safety for power plants, substations, mining facilities, and commercial high-rise buildings worldwide.
Designed with footprint efficiency as a top priority, the XGN66-12 is only 50% the size of conventional switchgear, making it ideal for space-constrained urban substations and compact distribution rooms. Its robust cabinet construction, using high-quality angle steel welding, delivers IP2X protection grade and includes dedicated pressure relief channels to mitigate arc flash risks and protect personnel. The standard VS1 vacuum circuit breaker ensures high reliability and low arc extinction, while the comprehensive five-defence mechanical interlocking mechanism prevents misoperation, significantly reducing downtime and maintenance-related safety risks.
Ease of installation and maintenance are deeply integrated into its design. The circuit breaker compartment is located at the lower part of the cabinet, providing unobstructed access for installation, debugging, and servicing. A rotary isolating switch allows safe maintenance even with the main busbar energized, while the front-located cable connections simplify wiring and reduce installation time. The cabinet door features a clear observation window, letting operators monitor internal component status at a glance without opening the panel.
Built to operate reliably in diverse and challenging environments, the XGN66-12 handles altitudes up to 1000m, temperatures from -25°C to +40°C, and earthquake intensities up to 8 levels, meeting the environmental requirements of most international projects. Its pollution-free design, long service life, and minimal maintenance requirements make it a low-cost, high-performance choice for your power distribution needs, delivering consistent performance while lowering total lifecycle costs over decades of operation.
B: Model meaning
C: Conditions of Use
- The altitude does not exceed 1000m;
- Ambient temperature:-25°C-+40°C, the average temperature within 24 hours does not exceed+35°C;
- Horizontal inclination: no more than3° ;
- Earthquake intensity: no more than 8 levels;
- No violent vibration and impact and explosion hazard.
D: Structural features
- The cabinet is welded with high-quality angle steel;
- The circuit breaker room is located in the middlellower part) of the cabinet, whichis convenient for installation, debugging andmaintenance.Standard VS1 circut breaker with pressure relief channel to ensure personal safety; Adopt advanced andreliable rotary isolating switch, which can safely enter the circuit breaker room for maintenance when the main bus is charged:
- The whole cabinet protection grade IP2X;
It has a mandatory mechanical locking device with complete and reliable functions, which can easily and effectively meet therequirements of the “five-defence” interlocking mechanism; - Has a reliable grounding system;
- The door is equipped with an observation window to clearly observe the working status of the components inside the cabinet.
- The operating mechanism is locked with the JSXGN locking mechanism used in the XGN2-12 cabinet, which is simple,reliable, convenient and practical;
- The incoming and outgoing cable is lower than the front of the cabinet for easy connection.
E: Related Products
1.HXGN15-12 Unit Type AC Metal-Enclosed Ring Network Switchgear
HXGN15-12 Unit Type AC Metal-Enclosed Ring Network Switchgear
For ring distribution systems requiring compact and reliable performance, the HXGN15-12 offers low maintenance and five-proof interlocks, ideal for urban networks and commercial projects.
2.KYN28A-24 Armored Removable AC Metal-Enclosed Switchgear
KYN28A-24 Armored Removable AC Metal-Enclosed Switchgear
Upgrade to higher-voltage applications with the KYN28A-24, a 24kV draw-out switchgear featuring easy maintenance and high short-circuit withstand strength, perfect for power plants and large-scale facilities.
