Metal-Enclosed Ring Main Unit
1. Flexible Configuration & Strong Compatibility: Supports multiple switch options (FN12-12, FZN25-12, vacuum circuit breakers), enabling adaptable solutions for various distribution systems.
2. Compact, Modular & Expandable Design: Lightweight, fully assembled structure allows flexible combination, easy installation, and convenient future expansion.
3. High Safety with Complete Interlocking System: Equipped with reliable mechanical interlocks and full “five-interlock” protection to effectively prevent misoperation and ensure safe operation.
4. Low Maintenance & Intelligent Operation Options: Maintenance-free design with manual/motorized operation and optional remote control improves efficiency and reduces operating costs.
HXGN15-12 AC Metal-Enclosed Ring Main Unit
The HXGN15-12 is an AC high-voltage complete switchgear with a rated voltage of 12kV and a rated frequency of 50Hz. It is mainly used in three-phase AC ring networks, terminal distribution systems, and industrial electrical installations for power receiving, distribution, and protection. It is also suitable for installation in compact (prefabricated) substations.
This product complies with GB3906 “3–35kV AC Metal-Enclosed Switchgear”, GB/T11022 “Common Technical Requirements for High-Voltage Switchgear and Controlgear Standards”, IEC60298 “AC Metal-Enclosed Switchgear and Controlgear for Rated Voltages Above 1kV up to 52kV”, and IEC60694 “Common Specifications for High-Voltage Switchgear and Controlgear”. It is equipped with a complete “five-interlock” protection system.
Structural Features
Fully assembled structure with lightweight and compact design, allowing flexible combinations and easy expansion.
Compatible with FN12-12 pneumatic load switch and combination units, as well as FZN25-12 vacuum load switch, combination units, and fixed vacuum circuit breakers.
Compact size, maintenance-free, with three-phase linkage and visible isolation gap.
Flexible installation methods for load switches and combination units: left-mounted, right-mounted, front-mounted, and inverted installation (FZN25 cannot be inverted).
Supports both manual and motorized operation, with optional remote control capability.
Equipped with reliable mechanical interlocking and linkage devices, fully meeting “five-interlock” requirements.
Technical Parameters
| Item | Unit | Load Switch | Combination Unit |
Rated Voltage | kV | 12 | 12 |
Rated Frequency | Hz | 50 | 50 |
Power Frequency Withstand Voltage (phase-to-phase, phase-to-earth / across open contacts) | kV | 42 / 48 | 42 / 48 |
Lightning Impulse Withstand Voltage | kV | 75 / 85 | 75 / 85 |
Rated Current | A | 630 | 125 |
Rated Short-Circuit Making Current (peak) | kA | 50 | — |
Rated Peak Withstand Current | kA | 50 | — |
Rated Short-Time Withstand Current | kA / s | 20 / 4 | — |
Rated Short-Circuit Breaking Current | kA | — | 31.5 |
Rated Transfer Current | kA | — | 31.5 |
Max. Fuse Current | A | — | 125 |
Circuit Resistance | μΩ | ≤300 | ≤300 (excluding fuse) |
Auxiliary & Control Circuit Insulation Test | V | 2000 | 2000 |
Project Experience
We operate construction projects in over 20 countries and regions, offering comprehensive medium and low voltage switchgear solutions. Upholding the philosophy of “Quality Manufacturing, Service Excellence,” and guided by integrity, innovation, safety, and cooperation, we aim to provide global customers with dependable products and services.
About Us
With 36,000 square meters of manufacturing space and 200 committed staff, we focus on the development, production, and sales of 0.22kV–35kV medium and low voltage switchgear, as well as electrical engineering installation and upgrades. Our solutions are widely applied in industrial, commercial, real estate, sports venues, and medical sectors, ensuring efficient production and rigorous quality inspection.
Raw Material Display
FAQ
What types of complete electrical switchgear can your company provide?
We can supply low-voltage and medium-voltage complete electrical switchgear ranging from 0.22kV to 35kV.
Are you a manufacturer or a trading company?
We are a professional manufacturer with our own complete production lines and processing workshops.
What is your minimum order quantity (MOQ)?
Our MOQ is very flexible. Trial orders and small batch orders are welcome.
Do you offer customization services?
Yes, we can customize complete electrical switchgear according to your drawings and specific electrical design requirements.
What certifications do your products have?
Our products are certified with CB, ISO9001, CCC, and other mainstream international certifications.
What is your typical production lead time?
Usually, it takes about 15 to 25 days after receiving the deposit and confirming the drawings.
