Description
The MDIS49-12 represents a breakthrough in switchgear technology, embodying the principles of environmental sustainability and efficiency. This metal-enclosed ring network switchgear is a novel green solution, utilizing dry air or nitrogen — both eco-friendly gases for insulation.
This design significantly reduces or even eliminates greenhouse gas emissions.
With a material recovery rate exceeding 90% at the end of its lifecycle, the MDIS49-12 sets a new standard for environmental responsibility in switchgear design. Unlike traditional models, it minimizes the use of refractory epoxy resin materials for insulation parts, excluding the casing, to truly embrace green environmental practices.
Key Features:
- Vacuum Arc Extinguishing: Both the circuit breaker and load switch leverage vacuum arc extinguishing technology, enhancing the switchgear’s environmental adaptability and operational reliability.
- Compact Design: Its small footprint contributes to land space conservation, an essential factor in dense urban or environmentally sensitive areas.
- SF6-Free: Eliminates the need for SF6 gas detection and protective measures, offering a safer and more sustainable option.
- Maintenance-Free: Designed for reliability and ease of use, the MDIS49-12 requires no routine maintenance, ensuring long-term, trouble-free operation.
- Intelligent Operation: Integrates smart technology to facilitate efficient and reliable power distribution management.
- Versatile Application: Suitable for a 12kV, three-phase AC 50Hz power distribution system, the MDIS49-12 is ideal for a wide range of applications, including urban residential power distribution, small secondary substations, switching stations, cable branch boxes, box-type substations, and infrastructure in industrial sectors, shopping centers, airports, subways, wind farms, hospitals, stadiums, railways, and tunnels.
The MDIS49-12 dry-insulated switchgear heralds a new era in power distribution equipment, combining environmental sustainability with advanced technological features. It represents the future direction of ring main unit development, offering a safe, reliable, and green solution for various electrical distribution needs.




